JP6978013B2 - Radiation transmission reduction container - Google Patents

Description

Radiation reduction component base material for relatively high concentration of radiation in land, gardens, school yard, stadium ground or lawn, on farmland, concrete, asphalt, road slopes, building walls, roofs Above, on and around the waste accumulated in decontamination work, installed as a self-supporting wall structure, construction and garden, school yard, stadium ground or lawn, farmland, forest, building wall, roof Plants are installed on the upper surface to create green areas, on land with relatively high concentrations of radiation, on the border of adjacent land facing buildings, and on and around the waste accumulated during decontamination work. Also, regarding the radiation protection green area and the radioactive substance diffusion prevention measure green area structure using the radiation transmission reduction constituent base material suitable for installation in the rainwater infiltration inside and side ditch.

Radioactive materials scattered in the natural environment due to an accident at a nuclear power plant or an accident at a business facility handling radioactive materials will contaminate the nuclear power plant and its surrounding area, or the facility handling radioactive materials and its surrounding area. In addition, decontamination of radioactive materials has been carried out due to the occurrence of an accident, however, in the case of ground, soil, turf, etc. contaminated with radioactive materials, the surface layer surface is peeled off, and concrete, asphalt, law Decontamination work is carried out on contaminated areas such as surfaces and roofs by methods such as peeling or high-pressure cleaning. However, there are concerns about the re-scattering of radioactive materials and sedimentation contamination at the water flow destination due to movement and cleaning leading to storage of decontaminated materials. In addition, radiation from radioactive materials remains in the place after decontamination. In addition, even if the decontaminated material is buried underground, radiation remains on the ground surface. In addition, it is difficult to secure land for storing decontaminated materials. In addition, high-concentration radiation is emitted due to the concentration of a large amount of decontaminated material. In addition, if radiation remains on the land or building next to the decontaminated land, it adheres to the adjacent land or building, and the permeated radioactive material is scattered by the wind, or rainwater adheres to the building surface or causes the permeated radioactive material to flow. There are many places where high-concentration radiation is emitted, which is concentrated and remains in the drainage facility at the water flow destination, on the ground, and in the ground.

Furthermore, radioactive materials adhering to the ground due to strong winds and driving of automobiles float in the surrounding area and reattach to the ground and buildings, and many radioactive materials such as being washed away by heavy rain are removed, stored and radiated. There is a problem with radiation.

All of the harmful effects of radiation caused by the presence of these radioactive materials on exposed people, animals and other various ecology have not been elucidated. In addition, it is more dangerous to ingest the radioactive materials floating from the place contaminated with the radioactive materials, but it is not easy to remove the radioactive materials from the contaminated living environment area.
Currently, as a solution to such problems, multiple sheets such as iron plates and sheets and mats in which heavy metal powders and grains are integrated as additives in rubber and resin are laminated to obtain a radiation shielding effect (for example, patents). See Document 4). In addition, a method of installing and constructing heavy objects such as heavy metal plates, heavy concrete plates and concrete blocks, and a large amount of soil not contaminated with radioactive materials on a place where radiation is emitted by a heavy machine has been selected. It is also known to install heavy structures as walls around the place where radiation is emitted to reduce radiation.

On the other hand, there is already a green space technology containing 90% of soil volume (see, for example, Patent Documents 1, 2 and 3). This patented literature technology verifies the amount of evapotranspiration comparable to that of forests and uses it for the heat island mitigation effect (verifies that the outside air temperature of 50 cm above the rooftop turf in midsummer is reduced by 1 ° C). In addition, the storage effect of heavy rainfall that occurs frequently due to the amount of water retained in the green space is remarkable. Further, a lawn in which water does not seep out to the lawn surface when the soil water content of the lawn is saturated is suitable for a stadium. Furthermore, wood, herbs and crops can all be produced by forcing cultivation. For example, a tall tree of Yae Beni weeping cherry tree is planted on a ship and grows with stable growth. Further, for example, the length of spinach grown without pesticides has grown to 150 cm. As described above, it is clear that the above-mentioned patent document technology is a special technology. In this greening technology, the water consumption of plants is small because the soil structure also has an aeration environment, carbon environment, trace element fertilizer environment, and drainage environment suitable for root growth of plants. No. The soil water content is also affected by the evapotranspiration of the leaves, and in the summer, the amount of water content in the soil is significantly reduced. Considering the effect of reducing radiation permeation, due to the water content of the greening technology, for example, when the soil thickness is 12 cm, the mass and water retention of the soil, the underdrain base material, the activated charcoal-attached water-permeable sheet, and the turfgrass sod. A turfgrass green area structure can be designed with a total weight of 167 kg / m ^{2 (100 l water content saturation) including the water content saturation of the soil.} It is a common value among those skilled in the art that the radiation transmittance estimated from this weight is reduced by about 75%. However, for example, the water consumption of the lawn on a midsummer day is at least m ² about 5 to 7 l / day by evaporation, that is, the water content of the above-mentioned culture soil having excellent water retention is saturated. In a day or 20 days, turfgrass will consume soil water content, if there is rainfall during this water consumption, the soil will have more water, but if there is no precipitation, the soil water content will decrease daily, that is, plants. Water consumption will reduce the load on the soil and increase the transmission rate of radiation. Become. In addition, although it is possible to introduce and create general soil dressing other than the water-retaining soil described in the patent document to increase the thickness and weight of the soil dressing, accidents at nuclear power plants in the past. Even in this case, it is not realistic to bring in a large amount of soil material that is not contaminated with radioactive substances because it is forced to be carried from a remote place without contamination. In addition, the transportation cost is high and it is difficult to introduce it. In addition, since the water content and soil load increase by using a large amount of water-retaining soil described in the patent document, the radiation transmittance is reflected in the total load of the soil structure and a sufficient reduction effect can be obtained. Costs such as costs will increase, however, in order to keep the radiation transmission reduction rate constant at a value as close to 100% as possible, it is essential to keep the soil weight and soil water content constant in order to maintain the radiation transmission reduction. be. As explained above, the factors that increase or decrease the weight of green soil are affected by the amount of water consumed by plants and the weather conditions on the top surface of the soil. It is to be lost. In addition, in order to obtain the radiation transmission reduction effect that should correspond to the radiation radiation of cesium with a long physical half-life of 30 years, it is necessary to deal with the dose emitted by cesium over at least the half-life. Requires a substrate and soil structure with effective soil water content and physical functions to prevent scattering and flow of radioactive material,
However, it is difficult for those skilled in the art to create a soil that is inexpensive and has a high water content required for reducing radiation transmission, and a soil that permanently retains a certain amount of water or more required for stable growth of plants. rice field. Further, it has been difficult for those skilled in the art to create a structure having a liquid phase portion and a gas phase portion that maintain a static state without being affected by an external force. Furthermore, it is not easy to predict that an excellent reduction effect will be obtained in the fixing and shielding of radioactive materials, which is the field of physics, and also because the fields related to plant growing and radioactive materials are different. The creation of such new soil was not easily conceived.

Japanese Patent No. 4980560 Japanese Patent No. 4907854 Japanese Patent No. 4907855 Japanese Unexamined Patent Publication No. 2013-79845

The present invention accumulates in land with relatively high concentrations of radiation, gardens, school yard, stadium ground or lawn, agricultural land, concrete, asphalt, building walls, slopes, roofs, and decontamination work. Installed on and around waste, as a self-supporting wall structure, or on gardens, schoolyards, stadium ground or lawn, farmland, forests, building walls, ceilings, roof tops Cultivate plants by creating green spaces, or by constructing walls on and around land that has a relatively high concentration of radiation, on the border of adjacent land facing buildings, and on and around the waste accumulated during decontamination work. It is an object of the present invention to provide a radiation-protected green space and a radioactive substance diffusion prevention measure green space structure using a radiation transmission reduction constituent base material suitable for installation inside a rainwater infiltration and in a side groove. ..

In the first invention, after radioactive material is diffused from a nuclear power plant or a business that handles radioactive material, contamination caused by the diffused radioactive material is remarkable in a wide area inside or outdoors. It is provided in and around the place where it appears,
A region including a plurality of ribs and at least one front and back thin plates laminated via the plurality of ribs, sandwiched between the front thin plate and the back thin plate, and excluding the plurality of ribs. In the water-containing space or the hollow plate-like body forming the gas phase portion with the water-containing space in the hollow region of the hollow rib, and in the water-retaining base material or the water-containing space filled in the water-containing space. It is a radiation transmission reducing constituent base material including a filled water-retaining base material and a gas phase portion.

In the radiation transmission reducing constituent base material of the second invention, the water-containing space or the peripheral portion of the gas phase portion is closed or partially closed, and the surface thin plate is used for the water-containing material. The radiation transmission reducing constituent base material according to the first invention, which may include a form in which one or more through holes communicating with the entire space are formed.

The radiation transmission reducing constituent base material of the third invention comprises a hollow plate-like body in which a back thin plate and a front thin plate having a large number of through holes are laminated via a large number of ribs. The ribs include a plurality of plate-shaped ribs arranged substantially parallel to each other, and at least one end of the water-containing space located at the longitudinal end of the plurality of plate-shaped ribs is closed. The through hole is the radiation transmission reducing constituent base material of the second invention, which includes a band-shaped through hole formed so as to intersect the plurality of plate-shaped ribs.

In the radiation transmission reducing constituent base material of the fourth invention, the plurality of ribs include four or more plate-shaped ribs arranged so as to be alternately inclined in opposite directions, and the plurality of plate-shaped ribs of the plurality of plate-shaped ribs. At least one end of the water-containing space located at the longitudinal end is closed, and the plurality of through holes include a band-shaped through hole formed so as to intersect the plurality of plate-shaped ribs. It is a radiation transmission reduction constituent base material of the second invention.

In the radiation transmission reducing constituent base material of the fifth invention, the plurality of ribs include hollow ribs, and the water-containing space also includes the internal space of the plurality of through holes, the second to fourth. It is a radiation transmission reduction constituent base material of any one of the inventions.

The radiation transmission reduction constituent base material of the sixth invention is the radiation transmission reduction constituent base material of the fifth invention, in which the hollow rib is formed with a hole for communicating the inside and the outside of the rib.

In the radiation transmission reducing constituent base material of the seventh invention, the one or more through holes formed in the surface thin plate partially include one or more holes for planting having a diameter of 30 mm to 180 mm. It is a radiation transmission reduction constituent base material of any one of the inventions.

The radiation transmission reducing constituent base material of the eighth invention includes a plurality of water shields having a main surface, a fixing member for fixing the plurality of water shields so that the main surfaces face each other, and the plurality of shields. It is a radiation transmission reducing constituent base material characterized in that a water retention base material sandwiched between water bodies and a water pipe or a hollow plate may be provided as a part of the water retention base material.

The radiation transmission reducing constituent base material of the ninth invention is a plate formed of a thermoplastic resin, or a back thin plate and a front thin plate are laminated via a plurality of plate-shaped ribs to form the plate-shaped body. A hollow plate-like body that is installed substantially in parallel to form a drainage channel, or a hollow plate in which a back thin plate and a front thin plate having a plurality of through holes are laminated via a plurality of ribs. The rib is a plate-shaped body, and the ribs are plate-shaped bodies, and a plurality of plate-shaped bodies are installed substantially in parallel to form a drainage channel. It is a radiation transmission reduction constituent base material characterized by having an underdrain plate structure formed by crossing a shape.

In the radiation transmission reducing constituent base material of the tenth invention, a back thin plate and a front thin plate having a plurality of through holes are formed of a large number of cylinders, cylinders, prisms, cones, cones, cones, and cones. It is composed of a hollow plate-like body laminated via any of the annulus-shaped ribs, and is characterized in that a drainage channel is formed between the front thin plate, the back thin plate, and any of the ribs. Radiation transmission reduction constituent base material.

In the radiation transmission reducing constituent base material of the eleventh invention, the front thin plate and the back thin plate in which a large number of through holes are formed at least in the front thin plate are laminated via a plurality of ribs in which the through holes are formed. It is a radiation transmission reduction constituent base material of the invention of the ninth or tenth which is a hollow plate-like body.

The tenth or tenth substrate of the twelfth invention for reducing radiation transmission is characterized in that the through hole is a hollow plate-like body which is a band-shaped through hole, and the ribs are honeycomb-shaped or lattice-shaped. It is a radiation transmission reduction constituent base material of 11 inventions.

The base material for reducing radiation transmission according to the thirteenth invention includes a non-woven fabric, a carbon fiber woven fabric, a glass fiber woven fabric, a rubber sheet made by mixing an additive with rubber, a resin sheet made by mixing an additive with a resin, and a resin plate. It includes any one of a metal plate, a concrete plate, and a plate body in which a heat insulating material and an aluminum plate are bonded together, and further comprises a bonded body bonded to the outer surface of any of the front thin plate and the back thin plate. The radiation transmission reducing constituent base material of the first to twelfth inventions, which is characterized by the above.

In the radiation permeation reduction constituent base material of the fourteenth invention, both ends or peripheral portions of the drainage channel are closed or partially closed so that the drainage channel can store water, and the overflowing water is discharged through the drainage channel. The radiation transmission reducing constituent base material of the ninth to thirteenth inventions, characterized in that the water can be drained from a part of the above or through the ribs at the end portion.

The radiation transmission reducing constituent base material of the fifteenth invention is the radiation transmission of any one of the ninth to fourteenth inventions on the surface thin plate or the impermeable body of the radiation transmission reducing constituent base material of any one of the first to eighth inventions. A radiation-transmitting low-constituent base material, characterized in that the reduced-structured base material is laminated.

The radiation transmission reduction constituent base material of the sixteenth invention is the same by fitting at least one of the plurality of ribs, the front thin plate and the back thin plate with the same other radiation transmission reduction constituent base material. It is a radiation transmission reduction constituent base material of any one of the first to fifteenth inventions, which comprises a fitting portion which enables connection with another radiation transmission reduction constituent base material.

The radiation transmission reducing constituent base material of the seventeenth invention is formed by a vertical wall having a through hole or a vertical wall having no through hole, and has a cross-sectional shape of 1 or a right-angled hollow L-shaped joint. The radiation transmission reduction constituent base material according to any one of the first to fifteenth inventions, which is characterized in that the radiation transmission reduction constituent base material is connected and made into a large plate.

The radiation transmission reducing constituent base material of the eighteenth invention is a slatted, corrugated, uneven, box-shaped, rectangular parallelepiped, or cubic body on the surface thin plate of the radiation transmission reducing constituent base material of any one of the first to the seventh inventions. Alternatively, it is a radiation transmission reducing constituent base material in which a culvert or a molded body, which is in the shape of a gutter and has through holes formed in the thickness direction, is laminated.

In the radiation transmission reduction constituent base material of the nineteenth invention, a non-woven fabric and / or ultrafine activated carbon adheres to the front thin plate side or the back thin plate side of the radiation transmission reduction constituent base material of any one of the first to eighteenth inventions. A radiation transmission reducing constituent base material characterized by laminating or laminating impregnated non-woven fabrics.

In the radiation transmission reduction constituent base material of the twentieth invention, a network body is laminated on either the front thin plate side, the back thin plate side, or the front and back thin plate side of the radiation transmission reduction constituent base material of any one of the first to nineteenth inventions. It is a radiation transmission reduction constituent base material that has been used.

The radiation transmission reduction constituent base material of the 21st invention is located on the front thin plate side, the back thin plate side, or the front and back thin plate side of the radiation transmission reduction constituent base material of any one of the first to the twenty inventions. A radiation transmission reduction configuration characterized in that a sheet of non-woven fabric is joined in a lattice pattern, and a radioactive substance adsorption sheet in which zeolite or a mixture of zeolite and activated carbon is enclosed is laminated between the upper and lower non-woven fabrics of the resulting lattice. Base material.

The radiation transmission reduction constituent base material of the 22nd invention is the radiation transmission reduction constituent base material of the 21st invention in which ultrafine activated carbon is adhered or impregnated to at least one non-woven fabric.

The radiation transmission reducing constituent base material of the 23rd invention is characterized in that rock wool fibers or a molded body thereof are laminated on the surface thin plate side of the radiation transmission reducing constituent base material of any one of the inventions 1 to 22. Radiation transmission reduction constituent base material.

In the radiation transmission reducing constituent base material of the 24th invention, the molded body of the rock wool fiber of the 23rd invention is a non-woven fabric, a felt-like body, a plate-like body, a square bar, a granular material, or a cotton-like material. Further, a form in which a turtle wire net is bonded to the surface of the rock wool fiber molded body, a form in which the surface of the molded body is coated with a glass cloth, and an aluminum foil and a glass fiber sheet are bonded to the surface of the molded body. It contains rock wool fiber in the form of laminated aluminum cloth.
In any of the above-mentioned molded bodies, inside the bag body formed in the bag body in which the peripheral portion of the radioactive substance adsorption sheet of the 21st or 22nd invention is closed or closed with a partial opening left. A radiation transmission reduction constituent base material characterized by being filled as a water-retaining base material or a void-retaining base material.

In the radiation transmission reducing constituent base material of the 25th invention, at least one peripheral portion of any one of a water-impervious sheet, a moisture-proof film, and a two-layer sheet in which a moisture-proof film and a water-impervious sheet are laminated is closed or partially. The rock wool molded body of the twenty-fourth invention or the 71, 72 or 74 It is a radiation transmission reduction constituent base material in the form of being filled with any of the water-retaining base materials of the present invention.

In the radiation transmission reduction constituent base material of the 26th invention, the radiation transmission reduction constituent base material of the 25th invention is provided on the upper surface of a portion contaminated with a radioactive substance, and the radiation transmission reduction of the 25th invention is described. A radiation transmission reduction constituent base material characterized in that the radiation transmission reduction constituent base material of any one of the first to 22 inventions is laminated on the upper surface of the constituent base material.

The radiation transmission reduction constituent base material of the 27th invention is the radiation transmission reduction constituent base material of the 23rd or 24th invention in which recesses or through holes are formed in the molded body of rock wool fiber.

The radiation transmission reducing constituent base material of the 28th invention has a characteristic that a side wall is erected at an end portion of the radiation transmission reduction constituent base material of any one of the inventions 1 to 23 to form a box shape. It is a reduced constituent base material.

In the radiation transmission reduction constituent base material of the 29th invention, the radiation transmission reduction constituent base material of any one of the first to 23rd inventions is bent, or side walls are erected at both ends of the radiation transmission reduction constituent base material. It is a radiation transmission reducing constituent base material characterized by being formed in a groove shape.

The radiation transmission reduction constituent base material of the thirtieth invention is the radiation transmission reduction constituent base material of any one of the first to twenty-third inventions, in which a large number of through holes are formed in the back thin plate.

As the structure for reducing radiation transmission according to the thirty-first invention, the radiation transmission reduction constituent base material having a soil layer laminated on the upper surface of the radiation transmission reduction constituent base material according to any one of the first to thirty-second inventions was used. Radiation protection green area and radioactive material diffusion prevention measures Green area structure.

The structure relating to the reduction of radiation transmission according to the 32nd invention is a radiation protection green area and a radioactive substance diffusion prevention measure green area using the radiation transmission reduction constituent base material of the 31st invention in which turfgrass is planted in the soil layer. It is a structure.

In the structure for reducing radiation transmission according to the 33rd invention, rock wool fibers or a molded body thereof and a soil layer are alternately laminated on a soil layer, and the uppermost surface is rock wool fibers or a molded body thereof or soil. It is a radiation protection green area and a radioactive substance diffusion prevention measure green area structure using the radiation transmission reduction constituent base material of the invention of the 31st or 32nd layer which is a layer.

The structure for reducing radiation transmission according to the 34th invention has a large number of through holes or band-shaped through holes between the rock wool fiber or its molded body and the soil layer, in the rock wool fiber or its molded body or in the soil layer. The 33rd invention in which a hollow plate-like body is laminated in which a surface thin plate to be drilled and a back thin plate having a large number of through holes or strip-shaped through holes are laminated via a plurality of ribs. Radiation transmission reduction constituent base material Radiation protection green area using it and radiation prevention measures green area structure.

The structure according to the thirty-fifth invention for reducing radiation transmission is the structure for reducing radiation transmission according to the thirty-third or 34th invention, characterized in that turfgrass is planted on a rock wool fiber on the surface or a molded body thereof or a soil layer. Radiation protection green area using it and radioactive material diffusion prevention measures Green area structure.

The radiation transmission reduction constituent base material of the thirty-sixth invention is an asphalt, tile, brick, concrete, roof tile, stone material, artificial stone material, rubber block, on the upper surface of the radiation transmission reduction constituent base material of any one of the first to 31st inventions. A radiation transmission reduction constituent base material characterized by laminating either a rubber sheet or a building member made of wood.

The radiation transmission reducing constituent base material of the thirty-seventh invention is formed from the first on the rooftop, roof, veranda, terrace, or wall of a building on which a waterproof layer is formed, via a heat insulating material layer. It is a radiation transmission reduction constituent base material characterized in that the radiation transmission reduction constituent base material of any one of 36 or 50 to 53 is laminated.

The radiation transmission reducing constituent base material of the 38th invention is any one of Nos. 1 to 36 or 50 to 53 on a skeleton in which a waterproof layer is formed on any of the rooftop, roof, veranda, terrace, and wall of a building. It is a radiation transmission reduction constituent base material on which the radiation transmission reduction constituent base material of the present invention is laminated.

In the radiation transmission reducing constituent base material of the 39th invention, the heat insulating material layer is formed by laminating a front thin plate and a back thin plate via a plurality of plate-shaped ribs, and a gas passage is formed by the plate-shaped ribs. The radiation transmission reducing constituent base material of the 37th invention which is a plate-like body.

The radiation transmission reducing constituent base material of the 40th invention is a seed-attached biodegradation in which plant seeds are attached between a biodegradable sheet or a polyethylene film having a plurality of pores and an oblate sheet to convert into a soil state in a short period of time. At least one of a sex sheet, a non-woven fabric in which ultrafine activated carbon is adhered or impregnated on at least one non-woven fabric, and a paper sheet in which zeolite is adhered or impregnated on at least one paper is sewn or bonded. A base material for reducing radiation transmission, which is formed as a bag body and is characterized in that a water-containing space inside the bag body is filled with rock wool or a water-retaining base material.

In the radiation transmission reducing constituent base material of the 41st invention, plant seeds are mixed between the region to be the upper surface of the water retention base material and the region to be the upper surface of the bag body when placed on the ground. It is a radiation transmission reducing constituent base material of the 40th invention provided with the soil layer.

In the radiation permeation reduction constituent base material of the 42nd invention, the region to be the upper surface of the water retention base material of the 40th invention, the region of the soil layer and the upper surface of the bag body are made of wood when placed on the ground. Alternatively, the radiation transmission reducing constituent base material of the invention of the 40th or 41st invention, in which at least one through hole for planting a herb or a planting portion cut in a line is formed.

In the radiation transmission reducing constituent base material of the 43rd invention, a part of the peripheral edge portion of two or more water permeable resin sheets having an uneven surface and being overlapped with each other is left as a water injection port, and the remaining portion of the peripheral edge portion is left. It is a radiation transmission reducing constituent base material characterized in that a water-retaining base material is filled in the water-containing space inside the bag body formed by joining the two.

The structure according to the 44th invention for reducing radiation transmission is a radiation formed by laminating the radiation transmission reduction constituent base material according to any one of the 40th to 42nd inventions on the upper surface of the radiation transmission reduction constituent base material according to 43. Permeation-reducing constituent base material Radiation-protected green areas using it and measures to prevent the spread of radioactive materials Greening structures.

In the structure according to the 45th invention, the radiation transmission reducing constituent base material according to any one of the 40th to 43rd inventions is placed on the radiation transmission reducing constituent base material according to any one of the first to 25th inventions. Radiation transmission reduction constituent base material characterized by being laminated It is a radiation protection green area and a radioactive substance diffusion prevention measure green area structure using it.

The radiation transmission reducing constituent base material of the 46th invention further includes a drainage pipe having a side wall formed with an opening, and the peripheral portion of the water-containing space or the drainage channel is closed except for a part. The invention according to any one of 1 to 17, wherein the water distribution pipe is connected to the hollow plate-like body so that a part of the peripheral portion of the water-containing space or the drainage channel communicates with the opening. Radiation transmission reduction constituent base material.

The radiation transmission reducing constituent base material of the 47th invention further comprises an irrigation pipe having a side wall having a row of through holes formed along the longitudinal direction, and the irrigation pipe has a row of through holes as the water-containing space. The radiation transmission reducing constituent base material of any one of the first to the seventh inventions, which is connected to the hollow plate-like body so as to communicate with the whole or the drainage channel.

The structure according to the 48th invention relating to the reduction of radiation transmission has the radiation transmission reduction constituent base material of any one of the first to 20th inventions, and is mainly one of an upright or inclined wall body and the upright wall body. Water-retaining water-permeable laminated on a surface or the upper surface of the inclined wall body, and at least one non-woven fabric adhered to or impregnated with any one of activated charcoal, water-absorbent resin, and desiccant, or activated charcoal, water-absorbent resin, and desiccant. A rock wool layer laminated on the outer main surface of the water-retaining and water-permeable sheet, or a rock wool cultivation soil layer in which rock wool and soil are mixed, and the rock wool layer or rock wool cultivation soil layer. Either another rock wool layer or a resin plate layer having water-repellent functionality laminated on the outer main surface of the soil and having a large number of through holes as planting sites, and the outside of the other rock wool or the resin plate. Each layer from the water-retaining water-permeable sheet layer to the base material layer is provided with a non-flammable or flame-retardant base material layer laminated on the main surface and torn as a planting site or a through hole. Is a radiation-protected green area and a radioactive substance diffusion prevention measure green area structure using the radiation transmission reduction constituent base material that is united and integrated by a fixture.

The structure relating to the reduction of radiation transmission according to the 49th invention further comprises a plant planted in the through hole of the base material layer, and the radiation protection green area using the constituent base material for reducing radiation transmission according to the 48th invention. Measures to prevent the spread of radioactive materials It is a greening structure.

In the structure for reducing radiation transmission according to the 50th invention, the front thin plate and the back thin plate are ribs having a plurality of plates, cylinders, cones, honeycombs, prisms, prisms, and lattices. Select one of a hollow plate-like body, a resin plate, a resin sheet, and a rubber sheet laminated via The shape is plate-shaped, box-shaped, gutter-shaped, saw-shaped, uneven, sponge-shaped or corrugated, and the thickness is 0.03 mm or more and the amount of grain is on the upper surface of the base material having multiple through holes. Non-woven fabric weighing 10 g / m2 or more / or non-woven fabric to which activated charcoal is adhered or impregnated, two non-woven fabrics are joined in a grid pattern, and fertilizer or a mixture of fertilizer and activated charcoal is sealed between the upper and lower non-woven fabrics of the resulting lattice. A grain-shaped molded body made of rock wool fiber having a density of 25 kg / m3 or more is laminated on the upper surface of which at least one of the plant growing sheets is laminated, and a soil layer is further laminated on the upper surface of the rock wool fiber. It is a radiation-protected green area and a radioactive substance diffusion prevention measure green area structure using it.

In the structure for reducing radiation transmission according to the 51st invention, the front thin plate and the back thin plate are ribs having a plurality of plate-like, cylindrical, conical trapezoidal, honeycomb, prismatic, prismatic trapezoidal, and lattice shapes. Select one of a hollow plate-like body, a resin plate, a resin sheet, and a rubber sheet laminated via The shape is plate-shaped, box-shaped, gutter-shaped, saw-shaped, uneven, sponge-shaped or corrugated, and the thickness is 0.03 mm or more and the amount of grain is on the upper surface of the base material having multiple through holes. Non-woven fabric weighing 10 g / m2 or more / or non-woven fabric to which activated charcoal is adhered or impregnated, two non-woven fabrics are joined in a grid pattern, and fertilizer or a mixture of fertilizer and activated charcoal is sealed between the upper and lower non-woven fabrics of the resulting lattice. A non-woven fabric containing fertilizer, leaf mold, minerals and rock wool fibers is laminated on the upper surface of which at least one of the non-woven fabric growing sheets is laminated. Anti-spreading measures Green structure.

The structure relating to the radiation transmission reduction according to the 52nd invention is the radiation transmission reduction configuration according to the 50th or 51st invention on the upper surface of the radiation transmission reduction composition substrate according to any one of the first to 17th, 24th, 25th, and 43rd inventions. Radiation protection green area using it and radiation protection measures to prevent diffusion of radioactive substances Greening It is a structure.

The radiation transmission reducing constituent base material of the 53rd invention is a sheet in which activated carbon is adhered or impregnated between at least one non-woven fabric and paper, between paper and oblate sheet, non-woven fabric, or paper, or at least one. Activated charcoal adheres or is impregnated between the biodegradable fiber and the oblate sheet, and the non-woven fabric and the paper, the paper and the oblate sheet, the non-woven fabric, the paper, and the biodegradable fiber and the oblate sheet are substantially entirely contained in the activated charcoal. A light-transmitting reducing constituent base material having the characteristics of an adsorption sheet, which is an ultrafine-grained activated carbon having a particle size of 990 μm or less.

The radiation transmission reducing constituent base material of the 54th invention is formed by joining a plurality of radioactive substance adsorption sheets of the 53rd invention or two non-woven fabrics in a lattice pattern, and between the upper and lower nonwoven fabrics of the lattice. It is a radioactive permeation-reducing constituent base material having the characteristics of an adsorption sheet in which a zeolite or a mixture of zeolite and activated carbon is encapsulated in the above-mentioned zeolite and the particle size of the zeolite and activated carbon is ultrafine particles of 990 μm or less.

In the radiation transmission reduction constituent base material of the 55th invention, a water-retaining base material is placed on one main surface of the adsorption sheet of any of the 53rd or 54th inventions, and the end face of the sheet is wound so as to form a spiral shape. A radiation transmission reducing constituent base material characterized in that the end portion or the vicinity of the end portion of the wound object is closed except for a part.

The radiation transmission reducing constituent base material of the 56th invention is a carbon fiber, a glass fiber woven fabric, a resin fiber woven fabric, a non-woven fabric, a resin film, paper, an activated charcoal bonded sheet formed by adhering or impregnating activated charcoal, and an additive mixed with rubber. A single sheet, which is one of a rubber sheet made of a non-woven fabric, a resin sheet made by mixing an additive with a resin, a resin sheet, and an aluminum adhesive sheet whose main surface is coated with a resin, or any of these. Of the one main surface of the laminated sheet in which a plurality of the sheets are laminated, the water-retaining base material is placed in the one-sided region from the substantially center line position, and the other-sided region faces the one-sided region and overlaps with the single-sided region. Radiation transmission as a bonded sheet formed by folding one sheet or the laminated sheet and joining the one-sided region and the other-sided region along the edge portion of the water-retaining substrate or the outer side of the edge portion. It is a reduced constituent base material.

The radiation transmission reducing container of the 57th invention is
With a bottomed or bottomless outer container,
A bottomed or bottomless inner container arranged inside the outer container so that the side wall and the bottom recede inward from the outer container.
A radiation transmission reducing container characterized by comprising a water-retaining base material filled in a gap between the outer container and the inner container.

In the radiation transmission reducing container of the 58th invention, the outer container according to the 57th invention is bottomless, and the inner container made of a net arranged inside the bottomless container or the inner bag body is used.
A radiation transmission reducing container characterized by comprising an activated carbon or a water-retaining base material filled in a gap between the outer container and the inner container made of the net or the inner bag body.

The radiation transmission reducing container of the 59th invention is the radiation transmission reducing container of the 58th invention in which the outer container is low and low.

The radiation transmission reducing container of the 60th invention includes an inner bag body arranged inside the outer bag body so as to retract inside the outer bag body, and an inner bag body.
A radiation transmission reducing container characterized by comprising a water-retaining base material filled in a gap between the outer bag body and the inner bag body.

In the radiation transmission reducing container of the 61st invention, any one of a ring band, a honeycomb-shaped plate body, a lattice-shaped plate body, and a square hollow body is attached to the region of the bottom surface of the inner container or the inner bag body, and the ring is attached. The radiation transmission reducing container according to any one of 57 to 60, comprising a band, a honeycomb-shaped plate body, a lattice-shaped plate body, and a water-retaining base material in a rib inner region of a square hollow body.

The radiation transmission reducing container of the 62nd invention is either 57th to 61st, wherein the inner bag body or the inner container is contaminated with a radioactive substance or an object that emits radiation. The radiation transmission reducing container of the present invention.

In the radiation transmission reducing container of the 63rd invention, the inner container is bottomless or has a bag body.
The radiation transmission reducing container according to any one of the inventions 57 to 62, further comprising a plate-shaped body attached to the outer container so as to cover the bottom of the bottomless inner container or the bag body.

The radiation transmission reducing container of the 64th invention has a shape in which a bottomed or bottomless outer container or a bottomed or bottomless inner container is divided into a plurality of containers, and the end portion of the divided container having the plurality of divided shapes is formed. The radiation transmission reducing container according to any one of 57 to 63, characterized in that the bottomed or bottomless outer container or the bottomed or bottomless inner container is formed by being fixed by a fixing member.

The radiation transmission reducing container of the 65th invention has a through hole or a notch from the upper end formed in the upper end portion of the outer container, and is arranged so as to pass through the through hole or the notch, and the outer container and the inner container are arranged. The radiation permeation reducing container of the inventions 57 to 64 further provided with an irrigation pipe that opens in the gap between the two.

The radiation transmission reduction container of the 66th invention is characterized by further comprising a hanging string attached to the outer container or the outer bag body, and the radiation transmission reduction of any of the 57th to 65th inventions. container.

The radiation transmission reduction container of the 67th invention is the radiation transmission reduction container of any of the 57th to 66th inventions, further comprising a lid covering the upper part of the outer container.

The radiation transmission reducing lid of the 68th invention has a water-containing space in the lid covering the upper part of the outer container, and the water-containing space is filled with activated charcoal or a water-retaining substrate. Reduced lid.

The radiation transmission reduction constituent container of the 69th invention is a radiation transmission reduction container in which the water retention base material according to the 57th to 68th inventions is the radiation transmission reduction constituent base material of the 71st, 72 or 74th invention.

In the radiation transmission reduction constituent container of the 70th invention, after the water-retaining base material of any of the 57th to 69th inventions is filled in the gap, water is injected into the water-retaining base material to contain the water-retaining base material. Radiation transmission reduction container.

In the radiation permeation reduction constituent base material of the 71st invention, the water retention base material is a mineral fiber, a mineral fiber molded body, a resin fiber, a resin fiber molded body, a glass fiber, a glass fiber molded body, a carbon fiber, a carbon fiber molded body, and the like. Ceramic fiber, ceramic fiber molded body, finely shaped carbon, paper, newspaper, paperboard, highly water-absorbent polymer resin, rot, non-woven fabric, cloth, cotton, vegetable fine powder, grain, salt, sweetener, wood, soil, wax , Pulp, mineral fine powder, seaweed fine powder, algae, blast furnace slag fine powder, steel slag, sand, sodium chloride, barium, fertilizer, feed, rotten leaves, volcanic ash, colloidal solution of barium sulfate, paraffin, cellulose, activated charcoal, charcoal , Stirrup, cement, colored sand, minerals, sponge, desiccant, pigment, cherry (suizenjinori), preservative, resin pellets, resin, non-woven fabric with or impregnated with highly water-absorbent polymer resin, at least one The above-mentioned 1 to 70 or 73, 75 to 90, which is at least one of a non-woven fabric or a fiber having a fine regular carbon having a particle size of 1200 μm or less attached or impregnated to the non-woven fabric. It is a radiation transmission reduction constituent base material of the present invention.

In the radiation transmission reducing constituent base material of the 72nd invention, the mineral fiber molded body is rock wool granular cotton or rock wool granular cotton perforated bag packing body, rock wool plate-shaped body or rock wool plate-shaped perforated bag. The radiation transmission reducing constituent base material according to the 71st invention, wherein the packing body, rock wool felt or rock wool felt perforated bag packing body, the glass fiber is glass wool.

The base material for reducing radiation transmission according to the 73rd invention is a polyethylene resin sheet or a bag made of a polyethylene resin film, or a polyethylene resin film having a polyethylene resin sheet on the front surface and a plurality of holes on the back surface. A radiation transmission reduction configuration in which any one of the bag bodies having a layered structure is filled with the water-retaining substrate of any one of the 71st or 72nd inventions, and at least one water injection port is opened in the bag body. Base material.

The radiation permeation reducing constituent base material of the 74th invention is the water-retaining base material, a shape stabilizer (polyethylene glycol), an oil, an aqueous molybdic acid solution, a colloidal solution of barium sulfate, an epoxy resin, sodium tungstate, a gel-like liquid, and a varnish. , Ethanol, a surfactant, a fluorine-based surfactant, or a high-mass solution is injected into a water-retaining substrate, and the radiation transmission reducing constituent substrate according to any one of the first to 73 or 75 to 90 inventions.

The radiation transmission reducing structure of the 75th invention corresponds to a row of cavities penetrating from one main surface of a rectangular parallelepiped to the other main surface and half of the cavities at both ends of the rectangular parallelepiped in the arrangement direction of the rows of cavities. A container with a concave shape, a concrete block-like outer shape, and a water injection port,
A radiation transmission reducing structure characterized by comprising a water-retaining base material filled in the container.

The description of the 75th invention, wherein a plurality of the radiation transmission reduction composite structure of the 76th invention is arranged in the arrangement direction of the row of the cavities and the axial direction of the row of the cavities, respectively, to form a wall body. With multiple radiation transmission reduction structures,
Insert at least a portion of the row of cavities and the recesses of each of the plurality of radiation transmission reduction structures, and through the plurality of radiation transmission reduction structures arranged in the axial direction of the row of cavities. With multiple bars arranged to do
It is characterized by comprising a mixture of a water-retaining base material and water or a mixture of a water-retaining base material and a bonding agent that fills the rows of the cavities and the recesses of each of the plurality of radiation transmission reducing structures. It is a radiation transmission reduction composite structure.

The radiation transmission reduction composite structure of the 77th invention is the radiation transmission reduction structure of any one of 55, 56 or 70 to 76, and the radiation transmission reduction structure.
Radiation transmission reduction characterized by providing a weatherproof and water-impervious storage container or a fireproof, flame-retardant and water-impervious storage container for storing and sealing the radiation transmission reducing structure and water. It is a composite structure.

In the radiation transmission reduction constituent base material and the composite structure of the 78th invention, the water retention base material composed of the radiation transmission reduction constituent base material of any one of the first to 77th inventions is the water-containing space, container, or bag. A radiation transmission reduction constituent base material and a radiation transmission reduction composite structure, which are characterized in that water is injected into the water retention base material to contain water after being filled in the water retention base material.

The radiation transmission reduction wall structure of the 79th invention includes a concrete foundation and
A plurality of columns erected on the concrete foundation at intervals from each other, and a plurality of wire ropes having bolts fixed to both ends spanned between adjacent columns among the plurality of columns.
It comprises at least one radiation transmission reduction constituent base material or radiation transmission reduction composite structure attached to the wire rope.
The radiation transmission reduction structure is the radiation transmission reduction structure of any one of the first to 24th inventions, and the radiation transmission reduction composite structure is the 48th, 49th, 56th or 70th to 76th. A radiation transmission reduction wall structure, which is a radiation transmission reduction composite structure according to any one of the inventions.

The radiation transmission reducing wall structure of the 80th invention is filled with a net-proof flame sheet formed by laminating a plate material or a non-combustible sheet or a flame-proof sheet arranged so as to form a container, and the inside of the container. The water-retaining base material or the water-retaining base material and the gas phase body are provided.
The plate material or netproof flame sheet is a radiation transmission reducing wall structure having through holes or notches that allow planting or water injection.

In the radiation transmission reducing wall structure of the 81st invention, the container has a slope, and a strip-shaped through hole extending substantially horizontally is formed in a region of the plate material forming the slope. The radiation transmission reduction wall structure of the present invention.

The radiation transmission reduction wall structure of the 82nd invention is installed inside the container and further includes a frame for maintaining the shape of the plate material or the netproof flame sheet as a container, according to the 80th or 81st. Permeation reduction wall structure.

In the radiation transmission reduction wall structure of the 83rd invention, the plate material is a resin plate.
The radiation transmission reduction wall structure according to any one of the 80th to 82nd inventions further comprises a flameproof sheet or a net flameproof sheet laminated on the surface of at least a part of the resin plate. Wall structure.

In the radiation transmission reducing wall structure of the 84th invention, the plate material is a hollow plate-like body in at least a part of the region.
The hollow plate-like body is a radiation transmission reducing wall structure according to any one of the 80th to 83rd invention, which comprises a plurality of ribs and a front thin plate and a back thin plate laminated via the plurality of ribs.

The radiation transmission reducing wall structure of the 85th invention is a partial bottom region inside the container, a partially lower region of the skeleton base material installed inside the container, and one of the lower surfaces of the bottom plate material arranged in the container. Hollow plate-like base material, metal base material, concrete base material, stone base material, resin base material, mineral base according to the inventions 8 to 10 or 84 in any external region beyond the partial region or region. Any of the skeleton base material or bottom plate material arranged in the container and the hollow plate-like base material, metal base material, concrete base material, stone base material, resin base material, or mineral base material. The radiation transmission reducing wall structure according to any one of the 80th to 84th inventions, which can be provided by connecting or connecting with a joint or a fixing member.

In the radiation transmission reduction wall structure of the 86th invention, at least two of the radiation transmission reduction wall structures are connected to the side surface of the same other radiation transmission reduction wall structure, any of the 80th to 85th. The radiation transmission reduction wall structure of the present invention.

The radiation permeation reduction constituent base material of the 87th invention is a finely shaped body containing activated carbon in a partial void region inside any one of a fiber molded body, a glass fiber molded body, and a ceramic fiber molded body mainly made of blast furnace slag. A fiberglass molded product filled with carbon, zeolite, or a mixture of finely shaped carbon containing zeolite and activated carbon.
A radiation transmission reducing constituent base material having a particle size of 1100 μm or less of the activated carbon and zeolite and formed in a water-impervious body by adhering or impregnating a resin to the fibers of the fiber molded body.

The radiation transmission reducing constituent base material of the 88th invention is rubber, carbon fiber, carbon fiber woven fabric, resin fiber, resin fiber woven fabric, blast furnace slag fiber, mineral fiber, mineral fiber woven fabric, resin film, metal foil, polyurethane, resin sheet. At least one gas phase body and liquid phase body packed in a water-impervious sheet made by selecting at least two of the above-mentioned base materials and crimping or laminating them, or in a bag made of the water-impervious sheet. And the fixing member that fixes the fibers so that they are stacked,
The 71st, 72nd or the 72nd A radiation transmission reducing constituent base material comprising any of the water-retaining base materials according to the invention of 74.

The radiation protection green area and the radioactive material diffusion prevention measure green area using the radiation transmission reduction constituent base material, the radiation transmission reduction container, the radiation transmission reduction structure and the radiation transmission reduction constituent base material of the 89th invention are nuclear power generation. After radioactive materials have been diffused from business establishments or business establishments that handle radioactive materials
Radioactive substances that have been diffused and are in a stationary state due to adhesion or precipitation, etc., and objects to which the radioactive substances have adhered or settled are decontaminated and placed in a wide area inside or outdoors. Storage areas, storage facilities, surrounding areas, or radioactive materials that have adhered or settled in a stationary state after the diffusion, forests, farmlands, school gardens, gardens, gardens, stadiums, parks, road slopes, parking lots , Buildings, trees, irrigation canals, rainwater permeable basins, rainwater drainage basins, where radioactive substances are emitted due to radioactive substances, and in the vicinity of them, and in underground storage facilities that store radioactive substances for many years. Alternatively, a radioactive transmission reduction constituent base material, a radiation transmission reduction container, a radiation transmission reduction structure and a radiation transmission reduction constituent base material using which the invention of any one of Nos. 1 to 86 is exceptional in the disposal site facility, and a radioactive green area using the same. And measures to prevent the spread of radioactive materials If a green structure is provided, the radioactive materials can be fixed and the amount of radiation can be reduced permanently and stably.

The 90th invention is a radiation transmission reducing constituent base material according to any one of Nos. 1 to 56 and 71 to 79, and a radiation protection green area and radioactivity according to any one of 31 to 35, 44, 45, 48 to 52. Material diffusion prevention measure A radiation shielding method that shields radiation using a green space structure, a radiation transmission reducing container according to any one of the 57th to 67th, 69th, and 70th inventions, or a lid according to the 68th invention. ..

As described above, the radiation transmission reduction constituent base material and the radiation transmission reduction constituent base material of the present invention are used for radiation protection green areas and radioactive substance diffusion prevention measures. Water can be stored in the space, and the effect of reducing radiation transmission can be stably exerted. Further, the function of physically adsorbing the radioactive substance by the finely shaped carbon also has the effect of preventing scattering. The reason for this effect is that the water-retaining base material is filled in the water-containing space created from the composition of the front and back thin plates, multiple ribs, and peripheral closing members, so that the water-retaining base material is affected by the external force due to the load. It can maintain a static state without any problem and can maintain a permanent water content. Furthermore, the water-retaining base material is not affected by changes in water content due to the evaporative action of the surrounding high-temperature thermal environment, changes in the decomposition and decrease of the water-retaining base material due to microorganisms, and changes in soil water content due to evapotranspiration of plants. There is no change in the water content present in.
With this configuration, the weight of the hollow plate-shaped member, the weight of the water-retaining base material, and the weight of the initial water content contained in the water-retaining base material can be sustained, so that the effect of reducing radiation transmission can be continuously exerted. In addition, since water can be injected into the water-containing space at or near the installation site, the burden of transportation is reduced. Further, it is possible to reduce the burden on the operator who carries a heavy object that exerts the conventional radiation shielding effect.

In addition to the above-mentioned radiation transmission reducing effect factor, the shielding factor of the present invention is that the electromagnetic wave of radiation is suppressed by a high-density resin and a molded resin.

The resin material having insulation and heat resistance, the rubber sheet obtained by crimping the resin and rubber, and the fiber molded body made by forming the inorganic blast furnace slag generated when the main raw material is iron making into a fiber shape have heat resistance. What you are doing is suppressing the electromagnetic waves of radiation.

The density of the thermoplastic resin and the fact that the gas phase portion derived from fibers and carbon made from minerals are configured in a special shape allows the gas phase portion to maintain a static state without being affected by an external force. A factor that keeps the static state is that it suppresses the heat conduction of radiation.
Furthermore, a large amount of water, which is a compound of hydrogen and oxygen, or a liquid with a high specific density, which exists in a static state on the water-retaining base material (liquid phase part), which is an aggregate of fibers made from minerals with a high water content, is in the gas phase part. It is conceivable to suppress the electromagnetic waves and heat conduction of radiation based on the structure integrated with.

In addition to the property that it is difficult to conduct electricity and heat, a complex that keeps water and oxygen in a static state is formed as a single body, or a liquid phase part and a gas phase part of the present invention that are configured in place are formed in each structure. By doing so, we predicted a factor that significantly increases the radiation shielding effect, which is different from the radiation shielding effect caused by the load. Further, the hollow plate-shaped member having the air layer and each base material of the present invention exert a special effect of reducing radiation transmission, but can be manufactured at low cost.

FIG. 1A is a perspective view showing a radiation transmission reducing constituent base material according to the first embodiment of the present invention. FIG. 1B is a perspective view in which a water-retaining base material and ribs are provided in the water-containing space of the first embodiment. FIG. 1 (c) is a cross-sectional view according to the first embodiment. FIG. 1D is a cross-sectional view according to the first embodiment. FIG. 1 (e) is a cross-sectional view according to the first embodiment. FIG. 1 (f) is a cross-sectional view according to an example of the second embodiment. FIG. 2 is a perspective view showing an example of the first embodiment of the present invention. FIG. 3 is a perspective view showing an example of the second embodiment of the present invention. FIG. 4A is a perspective view showing an example according to the second embodiment, and the dotted line portion shown between (b) and (b) of the second embodiment is a cross-sectional perspective view of (b) and (c). ) Is a cross-sectional view. FIG. 5A is a perspective view showing an example of the second embodiment of the present invention, and FIG. 5B is a cross-sectional view of a dotted line portion shown between (a) and (a) of the third embodiment. be. FIG. 6A is a perspective view in which a band-shaped through hole of the third embodiment of the present invention is formed, and FIG. 6B is a perspective view showing a partial configuration and structure of the third embodiment. .. 7 (a), (b), and (c) are cross-sectional views showing the plate-shaped ribs of the fourth embodiment. FIG. 8 is a perspective view of the fifth embodiment of the present invention. 9 is a cross-sectional view of a dotted line portion shown between (a) and (a) in the perspective view shown in FIG. 8, (a) is a cross-sectional view of the fifth embodiment, and (b) is an embodiment. FIG. 6 (c) is a perspective view illustrating two ribs of the sixth embodiment. 10 (a) is a perspective view showing the configuration of the second embodiment of the tenth and (b) of the present invention. FIG. 11 is a perspective view showing an example showing a part configuration of the seventh embodiment of the present invention. FIG. 12 is a perspective view (a) and a partial sectional view (b) showing an example of the ninth embodiment of the present invention. FIG. 13A is a perspective view showing the configuration of an example of the ninth embodiment of the present invention. 13 (b) is a partial cross-sectional view of FIG. 13 (a). FIG. 13 (c) is a perspective view of an example of the eighth embodiment of the present invention. FIG. 13 (d) is a cross-sectional view of another example of the eighth embodiment of the present invention. FIG. 13 (e) is a cross-sectional view of another example of the eighth embodiment of the present invention. FIG. 13 (f) is a perspective perspective view of another example of the eighth embodiment of the present invention. FIG. 13 (g) is a cross-sectional view of another example of the eighth embodiment of the present invention. FIG. 14 is a perspective view of an example according to the 20th embodiment of the present invention. FIG. 15 is a perspective view and a partial sectional view (b) of an example according to the embodiment 20 (a) of the present invention. 16 is a cross-sectional view (a) and (b) according to the 16th embodiment of the present invention. FIG. 17 is a cross-sectional view of an example according to embodiments 1, 2, 3, 9, 15, 19, 23, 31, and 32 of the present invention. FIG. 18 is a cross-sectional view of an example according to embodiments 1, 2, 3, 9, 15, 19, 23, 31, and 32 of the present invention. FIG. 19 is a cross-sectional view of an example according to Embodiments 1, 2, 3, 15, 19, 23, 31, and 32 of the present invention. 19 (a), (b) and (c) are sectional views of an example according to Embodiments 1, 2, 3, 9, 15, 19, 23, 31, 32, 80 of the present invention. 21 is a perspective view, (b) a top view, and (c) is a cross-sectional view according to the 40th embodiment of the present invention. 22 is a cross-sectional view (a) according to the 42nd embodiment of the present invention, and (b) and (c) are perspective views. 23 (a) and 23 (b) are cross-sectional views according to embodiments 40, 41, 42 of the present invention. 24 (a) and 24 (c) are perspective views according to the 43rd embodiment of the present invention, and FIG. 24 (b) is a sectional view. FIG. 25 is a cross-sectional view (a) showing the configuration according to the embodiment 46 of the present invention, and FIG. 25 (b) is a perspective view. FIG. 26 is a perspective view showing an example according to the 47th embodiment of the present invention. FIG. 27 is a cross-sectional view according to the 48th embodiment of the present invention. FIG. 28 is a cross-sectional view showing an example according to the 48th embodiment of the present invention. 29 (a) and 29 (b) are sectional perspective views according to the 48th embodiment of the present invention. 30 (a) and 30 (b) are cross-sectional views in which embodiments 28 and 48 of the present invention are integrated. FIG. 31 is a sectional view taken along the line (a) and (b) according to embodiments 48 and 79 of the present invention. FIG. 32 is a cross-sectional view according to embodiments 79 and 48 of the present invention. 33 is a diagram according to embodiments 53, 54, 55 of the present invention, in which (a) is a top-view development view (b) is a perspective view of a rolled object, and (c) is b (a) and (a). B) It is a cross-sectional view below between the dotted lines. FIG. 34 is a cross-sectional view according to embodiments 57 and 68 of the present invention. FIG. 35 is a cross-sectional view showing an example according to embodiments 61, 62, 63, 67 of the present invention. FIG. 36 is a cross-sectional view according to embodiments 61 and 68 of the present invention. FIG. 37 is a cross-sectional view according to an embodiment 61, 63, 64, 68 of the present invention. FIG. 38 is a cross-sectional view showing an example according to embodiments 61, 63, 67 of the present invention. FIG. 39 is a top view (a) and a perspective view (b) showing an example according to the embodiment of the present invention. FIG. 40 is a cross-sectional view showing an example of 64, 68 according to the embodiment of the present invention. 41 is a perspective view (a) and (c) according to embodiments 75 and 76 of the present invention, and the portion below the portion shown by the dotted line in (a) is shown as a cross-sectional view (b). FIG. 42 is an example showing a sectional view (a), a perspective view (b) and a developed view of (b) according to the 77th embodiment of the present invention. FIG. 43 is a perspective view (a) and (b) showing an example according to the 79th embodiment of the present invention. FIG. 44 is a cross-sectional view (a) and (b) showing an example according to the 80th embodiment of the present invention. FIG. 45 is a perspective view (a) and (b) showing an example according to the 80th embodiment of the present invention. FIG. 46 is a perspective view showing an example according to the 80th embodiment of the present invention. FIG. 47 is a diagram (a) and (b) showing other embodiments related to the embodiments 37 and 38 of the present invention. FIG. 48 is a cross-sectional view (a), (b), (c) showing an example according to the 80th embodiment of the present invention. FIG. 49 is a cross-sectional view (a) showing an example according to embodiments 80, 81, 82 of the present invention and a cross-sectional view (b) showing an example according to embodiments 81, 82 of the present invention. FIG. 50 is a perspective view (a) and (b) showing an example of the embodiment 80, 81, 82, 83, 84, 85 of the present invention. FIG. 51 is a cross-sectional view (a) showing an example according to embodiments 80, 81, 82, 83 of the present invention. FIG. 52 is a sectional view (a) and (b) perspective view according to an embodiment 80, 81, 82, 83, 84 of the present invention. FIG. 53 is a perspective view (a), (b) and a cross-sectional view showing an example according to embodiments 80, 81, 82 of the present invention. FIG. 54 is a perspective view (a) and (b) showing an example of the embodiment 80, 81, 82, 83, 84, 85, 86 of the present invention. FIG. 55 is a top view (a) and cross-sectional views (b) and (c) showing an example according to the 50th embodiment of the present invention. FIG. 56 is a cross-sectional view (a), (b), (c), (d) showing an example according to the 51st embodiment of the present invention. FIG. 57 is a top view (a) and cross-sectional views (b) and (c) showing an example according to the 50th embodiment of the present invention. FIG. 58 is a cross-sectional view showing an example according to the fourteenth embodiment of the present invention. FIG. 59 (a) is a cross-sectional view showing an example according to the seventeenth embodiment of the present invention. FIG. 59 (b) is a cross-sectional view showing another example according to the seventeenth embodiment of the present invention. FIG. 59 (c) is a cross-sectional view showing another example according to the seventeenth embodiment of the present invention. FIG. 59 (d) is a cross-sectional view showing another example according to the seventeenth embodiment of the present invention. FIG. 59 (e) is a cross-sectional view showing another example according to the seventeenth embodiment of the present invention. FIG. 60 is a cross-sectional view (a) showing an example of the embodiment 18 of the present invention and a cross-sectional view (b) of the embodiment 36 of the present invention. FIG. 61 is a perspective view showing an example according to the 57th embodiment of the present invention. FIG. 62 is a perspective view showing an example according to the 57th embodiment of the present invention. FIG. 63 is a perspective view (a), (b) and (c) sectional view showing an example according to the 87th embodiment of the present invention. FIG. 64 is a perspective view (a), a sectional view (b), and a top view (c) showing an example according to the 88th embodiment of the present invention.

<First Embodiment>
This embodiment includes a plurality of ribs 4 and at least one front thin plate and back thin plate laminated via the plurality of ribs 4, and is sandwiched between the front thin plate and the back thin plate. Inside the water-containing space 5 or the hollow plate-like body 1 forming the water-containing space 5 and the gas phase portion 118 in the region excluding the plurality of ribs 4 and the hollow region of the hollow rib 4, and the water-containing space 5. Corresponds to a specific example of the configuration in which the water-retaining base material 6 filled in the water-retaining base material 6 or the water-retaining base material 6 filled in the water-containing space 5 and the gas phase portion 118 are provided.
According to this configuration, water can be stored in the water-containing space 5 by the action of the water-retaining base material 6, and the radiation shielding effect can be exhibited. In addition, the gas phase portion 118 can hold an air layer that keeps a stationary state, and can exert a radiation shielding effect. The effect of preventing the scattering of radioactive substances can also be obtained. Since the water-retaining base material 6 is filled in the water-containing space 5, the water retention is good. Further, the gas phase portion 118 is also filled with a molded body made of innumerable fibers mainly made of an inorganic blast furnace slag to which a resin which is a void holding base material is adhered or impregnated, which is good for holding static air. .. The hollow plate-shaped member can be manufactured at low cost. Further, since water can be injected into the water-containing space 5 at the installation site, the burden of transportation is reduced.
Further, it is possible to reduce the work load of carrying a heavy object that exerts the conventional radiation shielding effect exceptionally.

Next, this embodiment will be described with reference to the drawings.
As shown in the upper figure (a) of FIG. 1, a rib 4 is formed between the front thin plate 2 and the back thin plate 3, the space excluding the rib 4 becomes the water-containing space 5, and the water-containing space 5 has a water-retaining base. The material 6 is filled. The water-retaining base material 6 is a granular material of rock wool, and has a water content of about 5 times the weight of the rock wool. Therefore, when water is injected to a state where water is saturated with 20 kg of rock wool granules per square meter, the total weight of the rock wool granules and water becomes about 120 kg per square meter. With this weight, it is theoretically predicted that the transmittance of gamma rays, which are highly transparent radiation, can be suppressed to about 50%. Further, it is possible to manufacture a hollow plate-like body even if the positions and intervals of the ribs 4 and the ribs 4 are fixed positions and fixed intervals, or the positions of the ribs 4 are randomized and the intervals are not fixed intervals. However, it is recommended to design and manufacture by calculating the shielding rate of radioactive materials and the fixing effect by load in consideration of the amount of water-retaining base material and water content.
Further, in the lower figure (b), the front thin plate 2 in the upper figure is separated from the upper surface of the rib 4. The positions of the ribs 4 shown in this figure are examples of the positions of the ribs 4 which are not at regular intervals. The ribs 4 are formed by selecting a cylindrical rib 4 and using the water-retaining base material 6 as the water-containing space 5. It is filled without gaps except for the peripheral space.

Further, in the cross-sectional view of FIG. The material 6 is filled with rock wool granules 101. Further, a hollow rib 4 constituting the water-retaining base material 6 and the gas phase portion 118 is shown. The upper region between the front thin plate 2 and the back thin plate 3 is configured as the gas phase portion 118. A water-repellent heat insulating material 42, which is a molded body of rock wool, is configured in the gas phase portion 118 so as to maintain a stationary state. The water of the water-retaining base material 6 is blocked through the water-impervious sheet 76 at the boundary between the water-retaining base material 6 and the water-repellent heat insulating material 42. As the water-impervious sheet 76, a rubber sheet having a thickness of 0.3 mm, which is formed by crimping a resin for preventing moisture permeation and fluororubber, is selected. It is also preferable to select a resin film. According to the configuration of the present invention, the water-retaining base material 6 is filled in the water-containing space 5 which is the liquid phase portion, and the water becomes stationary to maintain the water load at the time of water-containing, and the water-repellent heat insulating material of the gas phase portion 118. Innumerable minute air layers existing in 42 can reduce heat conduction. Further, it is an example that can be predicted to be useful for reducing the shielding of radioactive substances due to the structure of the resin plate having a high density antistatic effect. It is preferable to install the structure of the present invention in a bowl on a portion contaminated with a radioactive substance because it can be inferred that the structure of the present invention has an effect of reducing the transmission of radiation emitted from the radioactive substance.

Further, in an example of the cross-sectional view shown in FIG. It is configured. The surface of the surface thin plate 2 at the position constituting the rib is concave. Further, the space thickness between the front thin plate 2 and the back thin plate 3 is 15 mm. The region excluding the rib is the gas phase part. Further, in the lower layer constituting the gas phase portion, a water-retaining base material 6 and a water-containing space 5 are formed inside a plurality of cylindrical hollow ribs. The upper surface of the cylindrical rib is welded to the back thin plate 3 shown in the upper layer portion. Further, the water-retaining base material 6 is filled between the back thin plate 3 on the bottom surface and the back thin plate 3 constituting the gas phase portion 118. The plurality of concave portions of the surface thin plate 2 are filled with either ultrafine activated carbon having a particle size of 980 μm or less, zeolite having a particle size of 980 μm or less, or a mixture of ultrafine activated carbon having a particle size of 980 μm or less and zeolite. Further, a form in which a resin film or a rubberized cloth obtained by crimping resin and rubber is bonded to the upper surface of the surface thin plate 2 having the mixture is also preferable because it can be predicted that it will be useful for reducing the shielding of radioactive substances.

Further, as another related embodiment, a plurality of conical trapezoidal upper surfaces are joined between the front thin plate 2 and the back thin plate 3 constituting the gas phase portion 118 in the upper layer portion shown in FIG. Extra-fine activated carbon having a particle size of 980 μm or less, or zeolite having a particle size of 980 μm or less, in a plurality of concave portions formed on the front thin plate 2 and the back thin plate 3 of the hollow plate body in which the rib 4 is formed. A sheet in which any of a mixture of ultrafine activated carbon having a particle size of 980 μm or less and zeolite is filled, and a fluororesin film is bonded to the surface of an aluminum foil on the upper surface of the surface thin plate 2 having the mixture, a resin film. Alternatively, a rubberized cloth or the like made by crimping resin and rubber is attached. Alternatively, the same resin plate or resin plate as the hollow plate body is integrated with the upper surface of the surface thin plate 2 by bonding means such as heat fusion, adhesion, adhesion, etc., and innumerable fine particles useful for reducing the shielding of radioactive substances. It is also possible to select to manufacture a hollow plate body having holes. Since ultrafine activated carbon and zeolite have pores similar to the size of radioactive substances, they are useful for adsorption of radioactive substances and reduction of permeation of radioactive substances due to the influence of air or water vapor in the ultrafine pores. Further, it is preferable because the reduction in dose permeation related to the antistatic of the resin can be predicted.
Further, ultrafine particles having a particle size of 980 μm or less are formed in a region excluding a plurality of ribs of a hollow plate in which a plurality of ribs 4 in which upper surfaces having a truncated cone shape are joined between the front thin plate 2 and the back thin plate 3 are formed. The same resin material is filled with either activated carbon or zeolite having a particle size of 980 μm or less, or a mixture of ultrafine activated carbon having a particle size of 980 μm or less and zeolite, and the peripheral edge of the hollow plate is formed into a hollow plate. Use to weld and close. Alternatively, the hollow plate is closed by bending heat welding or thermocompression bonding near the inside of the peripheral edge. This form of plate is useful for reducing the shielding of radioactive substances.
Further, the form of the hollow plate having innumerable micropores specified in the above-mentioned other related embodiments and the form of the hollow plate closed by bending and heat welding near the inside of the peripheral portion of the hollow plate are merged. It is also preferable to manufacture a shield-reducing plate for radioactive substances. It is preferable to replace the plate body of this embodiment with the front thin plate 2 and the back thin plate 3 shown in the above figure (a) because it can be predicted that the shielding reduction rate of radioactive substances will increase.

Next, according to an example of the embodiment according to the second invention shown in the cross-sectional view (e),
A plurality of ribs 4 in which upper surfaces having a truncated cone shape are joined between the front thin plate 2 and the back thin plate 3 constituting the gas phase portion 118 are configured in the upper layer portion. The inside of the upper and lower truncated cones of the plurality of ribs 4 to which the upper surfaces of the truncated cone shape are joined is hollow and is configured as a gas phase portion 118. The region excluding the rib is the gas phase portion 118, which forms a hollow plate. A hollow plate in which a plurality of cylindrical ribs are formed between the front thin plate 2 and the back thin plate 3 under the back thin plate 3 of the hollow plate is shown. Inside the cylindrical rib, a water-retaining base material 6 and a water-containing space 5 are configured. Then, the water-retaining base material 6 is filled in the water-containing space 5 excluding the cylindrical ribs. The front thin plate 2 above the liquid phase portion of the lower layer and the back thin plate 3 constituting the gas phase portion 118 are firmly adhered to each other using an adhesive so that the liquid phase portion and the gas phase portion 118 are integrated. be. The means for adhering using an adhesive is an example, and the back thin plate 3 and the front thin plate 2 may be joined by another joining method.
Further, in the figure (f) below, a hollow plate constituting the liquid phase portion 119 is arranged in the central layer, hollow plates constituting the gas phase portion 118 are arranged above and below the hollow plate, and the hollow plate is composed of three layers. The side surface, the front surface, and the back surface of the hollow plate are closed by using the closing member 10 which is a resin plate and the fixing member 16 of the L-shaped resin rod. The closing member 10, the fixing member 16 of the L-shaped resin rod, the back thin plate 3 and the front thin plate 2 are hot-welded with a resin welding rod.
It is preferable because it can be inferred that the structure of this embodiment has an effect of reducing the transmission of radiation emitted from the radioactive substance.

FIG. 2 is a diagram in which a water-retaining base material 7 packaged in a water-containing space 5 of a hollow plate-shaped body 1 made of a transparent resin is filled. Although it depends on the contents of the water-retaining base material 7, it is preferable to wrap the water-retaining base material 7 with paper, a woven fabric of resin fibers, a resin film, a rubberized cloth sheet, or the like and fill the predetermined water-retaining space 5 with all of these methods. is not it. It is preferable to secure a water-repellent heat insulating material 42, which is a minute air layer formed of innumerable mineral fibers or the like, in the gas phase portion 118 because the thermal conductivity is reduced and the dose of radioactive substances is shielded. Further, it is also preferable to provide any one of a rock wool molded body, a glass wool molded body, and a ceramic fiber molded body, which partially constitutes a void space (gas phase portion 118) in the water-containing space and has water resistance in the void space. As the rock wool molded body in which the innumerable fibers filled in the gas phase portion 118 are molded, it is preferable to select a molded body having water repellency by adhering or impregnating the rock wool fibers with a resin.

The material constituting the plate body, the hollow plate-shaped member, and the rib is not particularly limited, and for example, a polyolefin resin such as polyethylene resin and polypropylene resin, a polyvinyl chloride resin, a polystyrene resin, a polyacrylic resin, and ABS. Resins, polyfluororesins, polycarbonate resins, polyester resins, polyarylate resins, epoxy resins, silicon resins, polyimide resins, thermoplastic resins such as synthetic rubber, thermosetting resins and photocurable resins, metals , Plated metal, water repellent timber, timber, concrete, mineral fiber, mineral powder, thermoplastic resin, thermosetting resin or photocurable resin coated metal or timber, paper, etc., corrosion resistance and molding. A thermoplastic resin having excellent properties is preferable, and it is preferably molded by extrusion molding, injection molding, foam injection molding, mold molding, mold crimp molding, or the like.

The front thin plate 2, the back thin plate 3 and the rib 4 molded from the thermoplastic resin may be transparent, translucent, or opaque, and are thermoplastic in order to improve weather resistance, photonescence, heat resistance, moldability, and the like. Addition of heat stabilizers, stabilizing aids, bone agents, processing aids, antioxidants, light stabilizers, pigments, antistatic agents, inorganic fillers, plasticizers, etc. that are generally used in resin molding. May be done.
Further, in order to obtain the effect of adsorbing radioactive substances, it is preferable to select any of dark blue, blue, green, black, gray, red, brown, purple and yellow and add the pigment at the time of molding the resin.
Further, the paint may be applied to the surface of the molded plate or the hollow plate-like member, or the paint may be applied to the upper surface to which a binder such as an acrylic resin is applied. It is also preferable to apply a fluororesin or a phenol resin.
Further, ultrafine activated carbon having pores matching the size of the radioactive substance, or zeolite, or ultrafine activated carbon and zeolite may be added to the above resin or paint in order to obtain the effect of adsorbing and reducing shielding of the radioactive substance. The particle size of the ultrafine activated carbon and zeolite to be added is preferably 980 μm or less for molding.

To provide reinforcement, weather resistance, light resistance, heat resistance, antistatic, insulation, etc. to the plate body composed of the radiation transmission reduction constituent base material, the front thin plate 2 constituting the hollow plate, and the back thin plate 3. , Polyethylene resin, Polypropylene resin and other polyolefin resins, Polyvinyl chloride resin, Polystyrene resin, Polyacrylic resin, ABS resin, Polyfluoro resin, Polycarbonate resin, Polyester resin, Polyarrate resin, Polyimide resin Synthetic resin film, rubber sheet, rubber sheet made by adding an additive to rubber, resin film rubber made of resin such as nylon or polyester on the rubber film of rubber whose front and back surfaces are made by adding an additive to rubber. A rubberized cloth sheet made by crimping the melted rubber between the fabrics and the base cloth (aramid fiber, nylon, polyester, aluminum foil, vinylon ox, glass fiber), and carbon on the front and back surfaces of fluororubber. A resin film made of resin such as nylon or polyester on the rubber film of the added rubber. Melted rubber and base cloth (aramid fiber, nylon, polyester, polyester fiber, aluminum foil, vinylon ox, glass fiber). It is preferable that a rubber-pulled cloth sheet obtained by crimping any one of the above) and a rubber-pulled cloth impermeable sheet obtained by laminating a fluororesin film on the surface of the rubber-pulled cloth sheet. Further, it is also preferable to laminate a fluoroaluminum water-impervious sheet formed by laminating a fluororesin film on the surface of the aluminum foil. Further, it is preferable to laminate a heat-sealing material having excellent water resistance, which is formed by crimping a thermoplastic polyurethane elastomer and a polyester base cloth material as the main surface material.
As the laminating method, any laminating method such as adhesion, adhesion, heat fusion, thin film deposition, and tacker needle may be selected and laminated. It is also preferable to apply an epoxy resin, an acrylic resin, a fluororesin, or a phenol resin to the upper surfaces of the above-mentioned resin films, aluminum foils, and rubberized cloth sheets. Further, a picture pattern, a photograph, a character or the like may be printed on the synthetic resin film in order to impart designability or the like.

The thicknesses of the front thin plate 2 and the back thin plate 3 are not particularly limited, but are preferably 0.5 mm to 20 mm because the mechanical strength is reduced when the thickness is thin and the thickness is easily broken when a load is applied. The thickness is preferably 10 mm or more in order to select wood that is useful for reducing the permeation of the dose.

Further, it is a hollow plate-like body in which the front thin plate 2 and the back thin plate 3 are laminated via a plurality of ribs 4, but when the thickness of the hollow plate-like body becomes thin, the area of the water-containing space, the water-containing floor area ratio, and the gas phase Since the area of the portion and the floor area ratio of the void are reduced, 3 mm to 100 mm is preferable, and 15 mm to 300 mm is more preferable. Then, its weight will vary depending water space ratio, generally preferably ^{0.5kg / m 2 ~25kg / m 2} , more preferably at ^{1.5kg / m 2 ~15kg / m 2} , the thickness It is not limited to the pod mass.

The shape of the hollow plate is not particularly limited, and is preferably a polygon such as a triangle, a quadrangle, or a hexagon, a circle, an ellipse, or the like, and the size thereof is 20 to 150 cm ×. 20 x 600 cm is preferable.

The shape of the rib 4 is also not particularly limited, and examples thereof include a columnar shape, a cylindrical shape, a prismatic shape, a square pipe shape, a truncated cone shape, a conical cylinder shape, a pyramidal shape, an annular shape, and a convex shape. In addition, a truncated cone shape, a conical cylinder shape, and a convex shape are provided on the front thin plate side and the back thin plate side, respectively, and a rib shape in which the upper surfaces of the tips facing each other are joined, or an almost hourglass-shaped rib shape integrally formed. , Drum-shaped rib shape is also mentioned.
Further, a rib whose height can be adjusted may be selected.

Further, the shapes of the front thin plate 2 and the back thin plate 3 are not particularly limited, and for example, a hollow plate having a large number of ribs 4 between the front thin plate 2 and the back thin plate 3 different from the hollow plate-like body. Alternatively, a corrugated plate, a folded half plate, etc. may be mentioned. In order to form this hollow plate, corrugated plate, or folded half plate into a front thin plate and a back thin plate, a plurality of ribs 4 are interposed between the front hollow plate and the back hollow plate, and the front and back hollow plates and ribs are joined to a resin. You may choose to weld using a welding rod. Alternatively, a form using fixtures such as bolts and nuts may be selected. Alternatively, a hollow plate-like body can be formed by using a fixture or the like, in which the front corrugated plate, the back corrugated plate, and the plurality of ribs 4 are welded using a joining agent and a resin welding rod. Further, a fitting portion that enables joining to the partial surface where the front thin plate 2, the back thin plate 3, and the rib 4 are applied is formed on the front thin plate 2, the back thin plate 3, and the rib 4 to form a hollow plate-like body. You can do it.

Further, in this configuration, the water-retaining base material 7 is filled in the water-containing space. By the function of the water-retaining base material 7, water can be stored in the water-containing space 5, and the water-retaining base material 7 is placed in the water-containing space 5. Since it is filled, it has good water retention, is sandwiched between the front thin plate 2 and the back thin plate 3, and uniformly contains water in the region excluding the plurality of ribs 4. This water content can exert the effect of reducing radiation transmission.

Further, as a method of filling the water-retaining space 5 of the hollow plate-like body with the water-retaining base material 7, it is preferable to fill the water-retaining base material 7 itself, but the water-retaining base material 7 is made of a water-permeable non-woven fabric or a polyethylene fiber net. A method of sewing a polyethylene sheet woven into a shape or filling a bag made by heat-welding a part of the peripheral edge with a water-retaining base material 7 to prepare for the water-containing space 5. Alternatively, the water-retaining base material 7 may be wrapped in a non-woven fabric or a polyethylene sheet in which polyethylene fibers are woven into a net shape, or the non-woven fabric or paper may be provided in the water-containing space 5.

Since the amount of the water-retaining base material 7 to be filled in the water-containing space 5 affects the weight of the radiation transmission-reducing base material, the weight at the time of completion of the radiation transmission-reducing base material and the weight of the water-retaining base material 7 in the water-containing saturated state are integrated in advance. This can roughly calculate the radiation transmission reduction rate.
In addition, by integrating the water content of the water-retaining base material 7, the weight of the water-retaining base material 7 before it contains water, and the mass of the hollow plate-like body, the fixture, etc., and designing the hollow plate-like body, at the contamination site. It is desirable because it is possible to set up the water content and formulate the amount of water and the number of workers.

Even if the front and back thin plates of the hollow plate-like body form a hollow plate in which the front thin plate and the back thin plate made of a thermoplastic resin different from the hollow plate-like body are made of a plurality of ribs. good. When this configuration is selected, a hollow plate-like body is formed by using bolts, nuts, screw nails, rivets, washers, adhesives, adhesives, tapes, etc., which are fixing members for the front and back plates of the hollow plate and the rib material. It is preferable to do so.

Further, in this configuration, either a rock wool molded body 42 having water resistance, a glass wool molded body having water resistance, or a ceramic fiber molded body that holds air in a stationary state in innumerable minute voids in the gas phase portion 118 is used. It is also preferable to fill it.
The rock wool molded body made of innumerable fibers mainly made of inorganic blast furnace slag filled in the gas phase portion 118 is a granular cotton or plate-like body having water repellency by adhering or impregnating the rock wool fibers with a resin. It is preferable to select a molded body such as a body, a felt-like body, a rectangular body, a cubic body, or a square rod-shaped body. When the gas phase portion 118 is filled with a rock wool molded body 42 which is a void holding base material, or a glass wool molded body having water resistance, a ceramic fiber molded body or a ceramic molded body, it is good for holding static air. Further, ultrafine activated carbon or zeolite having a particle size of 980 μm or less is adhered to or impregnated with the rock wool molded body 42 or the glass wool molded body having water resistance, the ceramic fiber molded body or the ceramic molded body to reduce the permeation of radioactive substances. It is also preferable to increase it.

A water-impervious sheet 76 or a film that does not allow water vapor to permeate is provided between the water-retaining base material 6 filled in the water-containing space 5 and the gas phase portion, and the water content of the water-retaining base material evaporates in the gas phase portion region. It is also preferable to prevent. Further, a hollow plate-like body may be formed by selecting a form in which the void-retaining base material is hermetically packaged or hermetically filled in a bag with a water-impervious sheet 76 or a film material that does not allow water vapor to permeate.
<Second embodiment>

In this embodiment, in the radiation transmission reducing constituent base material of the first invention, the peripheral portion of the water-containing space is closed or partially closed, and the surface thin plate covers the entire water-containing space. It corresponds to a specific example of the configuration characterized in that a form in which one or more through holes that communicate with each other are formed may also be included.
This embodiment will be described with reference to the drawings.
In FIG. 3, one end surface of a hollow plate-like body made of a transparent polycarbonate resin is formed on a closed end surface 9, and one end surface is used as a water injection port. A lid 8 is attached to the water injection port. In this hollow plate-like body, the front thin plate 2 and the back thin plate 3 are installed substantially in parallel, and are laminated via a plurality of plate-shaped ribs 4. Then, the water-containing space 5 is formed by being surrounded by the front thin plate 2, the back thin plate 3, and the rib 4. The figure shows that a part of the water-containing space 5 is filled with the water-retaining base material 6, and the water injection port is closed in the shape of a lid after water is injected into the water-retaining base material 6. Since the water-containing space 5 is sealed by providing the member 10, the water retention is good.

Further, the water-retaining base material 7 is a sheet in which fibers are impregnated with a super absorbent polymer. By filling the water-containing space 5 with water and injecting water, the superabsorbent polymer impregnated in the sheet of the water-retaining base material 7 quickly absorbs water and permeates the entire sheet. The amount of water absorption differs depending on the nature of the water to be injected and the amount of the superabsorbent polymer contained in the sheet, but about 8 to 12 times the weight of the sheet containing the superabsorbent polymer is absorbed by the sheet. Therefore, water injection work becomes easy.

Further, as the water-retaining substrate 7 to be used, the superabsorbent polymer itself may be selected and filled in the water-containing space 5, and as another form in which the superabsorbent polymer is used for the water-retaining substrate 7, the superabsorbent polymer itself may be used. , A non-woven fabric bag having water permeability, a bag made of paper, or other packaging material filled with a superabsorbent polymer material may be provided in the water-containing space 5 by providing the space 5 with a water-permeable polymer material. It is more desirable to use a superabsorbent polymer material that does not leak out.

The upper figure (a) of FIG. 4 is a perspective view made of an opaque resin material. The closed end faces 9 on the three peripheral edges of the hollow plate-like body 1 shown are all closed, and the water injection port described in FIG. 3 above shows a state in which the closing member 8 which is a lid is provided. In the example of FIG. 4, a through hole 12 is provided in a part of the closing member 8. The through hole 12 becomes a water injection port after the hollow plate-shaped body 1 is sealed by the closing member. The diameter of the through hole 12 is not limited, but a diameter of 2 cm to 8 cm is suitable.
When water is injected from the water injection port, the water permeates the water retention base material 6 from the closing member 8 shown in the cross section of the figure below.

It should be noted that the lower surface shown by the dotted line between (a) and (a) described in the figure is shown by the cross-sectional perspective view of (b). In this cross-sectional perspective view (b), the water-retaining base material 6 is not filled in all the water-containing spaces, but this figure is for making it easy to understand the elements necessary for the configuration, and the water-retaining base material 6 is used. Is preferably filled in an amount corresponding to the capacity of the water-containing space 5, and it is more preferable to fill the water-containing space 5 with the water-retaining base material 6 without gaps. Further, the lower figure (c) is a cross-sectional view showing a lower surface shown by a dotted line between (b) and (b) in the upper figure (a).

Further, according to the configuration of FIG. 5, since the peripheral portion of the water-containing space 5 is closed, water can be stored so that the static state of the water 6 in the water-retaining substrate is stable. Further, the water injected into the water retention base material 6 in a state where the band-shaped through hole 11 and the through hole 12 are closed and the peripheral portion is closed by the closing member 10 shown in the above figure (a). Since there is almost no loss, the effect of reducing radiation transmission can be stably exerted.

As shown in the upper figure (a) of FIG. 5, the through hole 12 and the strip-shaped through hole 11 for the purpose of communicating with the through hole 12 and the water-containing space 5 in the surface thin plate 2 of the hollow plate-like body filled with the water-retaining base material 6. Is formed so that the water injection penetrates into the water retention base material 6. Further, the lower figure (b) is a cross-sectional view showing the lower surface shown by the dotted line between (a) and (a) shown in the upper figure (a).

The 18 closed welds shown in this cross-sectional view are all inverted triangles except for the back thin plates 2 from the ends of the hollow plate-like body in the longitudinal direction of the ribs to both ends perpendicular to the longitudinal direction of the ribs in the inner region. The lower end of the inverted triangle is melted by applying pressure to the hollow plate from the surface of the surface thin plate 2 at the end of the hollow plate by applying heat to the hollow plate. It is a figure which the end part was closed by bending the part surface in the through hole 12 direction and welding the facing surfaces. It is preferable to close the end portion by this closing method because it is tightly closed and the strength of the water-containing space 5 is increased. However, although it is recommended that the water-retaining base material 6 be filled before it is closed, the method of closing the end portion is shown as an example method, and the method is not limited thereto.

Further, the members of the plate body and the hollow plate-like body are not particularly limited, and the members are not particularly limited.
For example, polyolefin resins such as polyethylene resin and polypropylene resin, polyvinyl chloride resin, polystyrene resin, polyacrylic resin, ABS resin, polyfluororesin, and polycarbonate, which are also specified in the first embodiment. Thermoplastic resins such as resins, polyester resins, polyarylate resins, epoxy resins, silicon resins, polyimide resins, synthetic rubber, thermosetting resins and photocurable resins, metals, timber, thermoplastic resins, heat Examples thereof include metals coated with a curable resin or a photocurable resin, plated metal, water-repellent wood, timber, paper, concrete, etc., and a thermoplastic resin having excellent corrosion resistance and moldability is preferable, and extruded. It is preferably molded by a molding method such as molding, injection molding, mold molding, mold compression molding, compression molding, foam injection molding and the like.

The front thin plate 2, the back thin plate 3 and the rib 4 molded from the thermoplastic resin may be transparent, translucent, or opaque, and are thermoplastic in order to improve weather resistance, photonescence, heat resistance, moldability, and the like. Addition of heat stabilizers, stabilizing aids, bone agents, processing aids, antioxidants, light stabilizers, pigments, antistatic agents, inorganic fillers, plasticizers, etc. that are generally used in resin molding. May be done. Further, in order to obtain the effect of adsorbing radioactive substances, it is preferable to select any of dark blue, blue, green, black, gray, red, brown, purple and yellow and add the pigment at the time of molding the resin.
Further, the paint may be applied to the surface of the molded plate or the hollow plate-like member, or the paint may be applied to the upper surface to which a binder such as an acrylic resin is applied. It is also preferable to apply a fluororesin or a phenol resin.

Reinforcement, weather resistance, light resistance, heat resistance, electric resistance, insulation, etc. Polycarbonate resin, polyolefin resin such as polypropylene resin, polyvinyl chloride resin, polystyrene resin, polyacrylic resin, ABS resin, polyfluororesin, polycarbonate resin, polyester resin, polyarate for application. Nylon or polyester on the rubber film of based resin, synthetic resin film of polyimide resin, aluminum foil or rubber sheet, rubber sheet made by adding additives to rubber, and rubber film made by adding additives to rubber on the front and back surfaces. A rubberized cloth sheet in which the melted rubber and the base cloth (any of aramid fiber, nylon, polyester, aluminum foil, vinylon ox, and glass fiber) are crimped between the resin film rubber fabrics that make up the resin. Resin film made of resin such as nylon or polyester on the rubber film of rubber whose front and back surfaces are made by adding carbon to fluororubber. Melted rubber and base cloth (aramid fiber, nylon, polyester, polyester fiber). , Aluminum foil, vinylon ox, glass fiber) is crimped, and it is preferable that a rubberized cloth sheet made by laminating a fluororesin film on the surface of the rubberized cloth sheet is laminated. Further, it is also preferable to laminate a fluoroaluminum water-impervious sheet formed by laminating a fluororesin film on the surface of the aluminum foil. Further, it is preferable to laminate a heat-sealing material having excellent water resistance, which is formed by crimping a thermoplastic polyurethane elastomer and a polyester base cloth material as the main surface material. As the laminating method, a laminating method such as adhesion, adhesion, heat fusion, thin film deposition or a tacker needle may be selected for laminating. It is also preferable to apply an epoxy resin, an acrylic resin, a fluororesin, or a phenol resin on the upper surface of each of the above-mentioned resins or aluminum foils. Further, a picture pattern, a photograph, a character or the like may be printed on the synthetic resin film in order to impart designability or the like.

Further, in this structure, it is desirable to select the molding method described above, in which the peripheral edge of the water-containing space 5 is closed and the structure is formed to block the movement of the stored water. Any known method may be adopted as the method for closing the end portion. However, the plate-like body made of the materials constituting the front thin plate 2, the back thin plate 3 and the rib 4 of the radiation transmission reduction constituent base material is closed by using a waterproof airtight tape, an aluminum foil tape, a water-impervious sheet, or the like. , Concave or convex rubber, cement, welded resin rods, corrosion resistant metal plates, concave corrosion resistant metal plates and the like.

Further, it is a hollow plate-like body in which the front thin plate 2 and the back thin plate 3 are laminated via a plurality of ribs 4, but when the thickness of the hollow plate-like body becomes thin, the region of the water-containing space 5 and the water-containing volume fraction become small. Therefore, the thickness is preferably 3 mm to 100 mm, more preferably 15 mm to 200 mm. Then, its weight varies depending on the amount of resin and additives amount required hollow plate-like body shaped generally preferably ^{0.5kg / m 2 ~25kg / m 2} , more preferably 1.5kg ^/ m 2 ~15kg / M ² .

Further, the shape of the rib 4 according to this configuration is not particularly limited, and for example, a plate shape, a columnar shape, a cylindrical shape, a prismatic shape, a square cylinder shape, a truncated cone shape, a cone cylinder shape, a square cone shape, and upper surfaces of two cones. A shape formed by joining two cones and a shape formed by joining two conical cylinder-shaped upper surfaces, and an hourglass shape can be mentioned. An embodiment in which the cylindrical rib is configured is shown in the lower figure (b) of FIG.

<Third embodiment>
Based on the second invention, this embodiment comprises a hollow plate-like body in which a back thin plate and a front thin plate having a large number of through holes are laminated via a large number of ribs. The ribs include a plurality of plate-shaped ribs arranged substantially parallel to each other, and at least one end of the water-containing space located at the longitudinal end of the plurality of plate-shaped ribs is closed. The through hole corresponds to a specific example of the configuration characterized by including a band-shaped through hole formed so as to intersect the plurality of plate-shaped ribs.

This embodiment will be described with reference to the drawings.
In the perspective view shown in the upper view (a) of FIG. 6 (see the lower figure (b) for the inside), the end faces are closed by the ribs 4 located on the left and right end faces of the hollow plate-shaped body 1. Further, both end faces in the longitudinal direction of the plate-shaped rib 4 are also shown to be closed as closed end faces 9. However, inside the hollow plate-like body, a water-containing space 5 exists between the plurality of plate-shaped ribs and the plate-shaped ribs, and the water-retaining base material 6 is filled. In addition, this closing method is the closing welding 18 by thermal processing described in the above-described embodiment. Further, a strip-shaped through hole 11 is formed in the surface thin plate 2 shown on the upper surface of the perspective view.

By forming the band-shaped through holes 11 formed so as to intersect the plurality of plate-shaped ribs 4, water injection is facilitated, and it rains from the band-shaped through holes 11 formed in a plurality of planes. Is easily permeated into the water-retaining base material 6 housed inside the hollow plate-like body 1. Therefore, when performing water injection work in a rainy environment, the amount of water is the amount of water permeation, although it depends on the amount of rainfall. Since the amount will be reduced, water resources will be used effectively.

Further, since the peripheral portion of the hollow plate-like body 1 is closed, the water contained in the water-retaining base material 6 can maintain a static state and retain the water content. It should be noted that water leakage from the strip-shaped through hole 11 occurs when the amount of rainfall or water injection exceeds the water content of the water retention base material 6, but it does not affect the maximum water content of the water retention base material 6. Further, even if the hollow plate-like body 1 is installed on a flat surface or an inclined surface in a stationary state, water hardly leaks from the through hole 11 due to a factor other than the above, so that the effect of reducing radiation transmission is permanent.

The width of the band-shaped through hole 11 is not particularly limited, but a narrower width affects the passage of water. Further, if the width becomes too wide, the water content will be affected by the environment outside the hollow plate-like body, and the water content will decrease. Therefore, the width may be 1 mm to 15 mm, but preferably 1 mm to 8 mm. Further, the distance between the band-shaped through hole 11 and the band-shaped through hole 11 may be 10 cm or more, but even if the distance is narrower than this, water injection or the like is not affected.
Further, the cross-sectional shape of the band-shaped through hole 11 is not particularly limited, and examples thereof include a rectangular shape, a U-shape, a V-shape, and a dovetail groove shape. The shape of the band-shaped through hole 11 is not particularly limited, and for example, a band such as a straight line, a curve, or a meandering line, a polygon such as a triangle, a quadrangle, or a hexagon, a circle, an ellipse, a geometric pattern, a spiral pattern, or the like can be used. Can be mentioned.

Further, in the lower figure (b) of FIG. 6, a plurality of plate shapes between the front thin plate 2 and the back thin plate 3 are formed by closing the end surfaces by ribs 4 located on the left and right end surfaces of the hollow plate-like body 1. Both end faces in the longitudinal direction of the rib 4 are perspective views on the premise that the rib 4 is closed by the closing member 10, and the water-containing space 5 between the plate-shaped rib 4 and the plate-shaped rib 4 is filled with the water-retaining base material 6. Has been done. It should be noted that this figure is also a perspective view according to the second embodiment described above.

Further, the materials constituting the front thin plate 2, the back thin plate 3 and the rib 4 are not particularly limited as long as they do not hinder the growth of plants, and may be selected from the materials described in the second embodiment. good. Further, the methods described in the first and second embodiments may be applied to the production of the hollow plate-shaped body and the closing of the ends.

<Fourth Embodiment>
In this embodiment, the plurality of ribs include four or more plate-shaped ribs arranged so as to be alternately inclined in opposite directions, and the water content is located at the longitudinal end of the plurality of plate-shaped ribs. At least one end of the space is closed, and the plurality of through holes include a band-shaped through hole drilled so as to intersect the plurality of plate-shaped ribs. It corresponds to a specific example of the constituent base material.

This embodiment will be described with reference to the drawings.
The upper view (a) and the middle view (b) of FIG. 7 show a cross-sectional view of a hollow plate-shaped body 1 in which the plate-shaped ribs 4 are arranged so as to be alternately inclined in opposite directions. The ribs 4 that are inclined are arranged between the ribs 2 and the back thin plate 3, and the space between the ribs 4 and the ribs 4 is a water-containing space 5, and the water-containing space 5 is filled with the water-retaining base material 6. In the figure (c) below, the plate-shaped ribs 4 are formed substantially horizontally between the front thin plate 2 and the back thin plate 3, and further, a plurality of plate-shaped ribs 4 different from the horizontally formed plate-shaped ribs 4 are formed. It is sectional drawing of the hollow plate-like body 1 arranged.

In this radiation transmission reduction constituent base material, the plate-shaped ribs 4 are arranged so as to be inclined in the opposite directions alternately, or the plate-shaped ribs 4 are formed substantially horizontally between the front thin plate 2 and the back thin plate 3, and further. Since a plurality of plate-shaped ribs 4 different from the plate-shaped ribs 4 formed in the horizontal direction are arranged, it has an excellent shearing force that does not cause cross-sectional breakage or displacement of the hollow plate-like body due to an external force. There is.

<Fifth Embodiment>
This embodiment corresponds to a specific example of a configuration in which a plurality of ribs include a hollow rib, and the water-containing space also includes an internal space of the plurality of through holes. According to this configuration, the water content ratio increases, and the water content increases and the weight also increases due to the increase in the amount of the water retention base material contained inside the hollow plate-like body. Therefore, it is suitable for increasing the radiation transmission reduction rate.

This embodiment will be described with reference to the drawings.
In the example shown in FIG. 8, the peripheral edges of the front thin plate 2 and the back thin plate 3 are all formed as closed end faces 9 except for the through hole 12 shown in the peripheral portion. Further, in this example, a plurality of through holes 12 are provided at arbitrary positions in the surface thin plate 2, and the figure also shows a closing member 10 for closing the through holes 12 shown in the peripheral portion after water injection. There is.
Further, the cross-sectional structure cut by the dotted line connecting between (a) and (a) described in the figure is shown in the upper view (a) of FIG. 9 as a cross-sectional view of the hollow plate-like body 1. Further, in the figure (b) immediately below the above figure, a hollow plate-like body 1 having a plurality of rib shapes formed by forming a through hole 12 in a cylindrical rib 14 is shown. Further, in the figure (c) below, two examples are a through-perforated rib 14 and a cylindrical rib 14 having a concave notch formed on the upper surface of the rib.

<Sixth Embodiment>
This embodiment corresponds to a specific example of the radiation transmission reducing constituent base material of the fifth invention, in which the hollow rib is formed with a hole for communicating the inside and the outside of the rib.
This embodiment will be described with reference to the drawings.
In the upper view (a) of FIG. 9, a cylindrical rib 4 is configured, and the water-retaining base material 6 is filled between the front thin plate 2 and the back thin plate 3 inside the end closing surface 9 and the inside of the rib 4. The hollow plate-like body 1 is shown. Further, FIG. 9B shows a hollow plate-like body 1 having a plurality of through-perforated ribs 14, and both ends of the hollow plate-like body 1 are closed by an end closing surface 9 so as to be inside the closure. The hollow plate-like body 1 filled with the water-retaining base material 6 is shown by a cross-sectional view. Note that FIG. 9 (c) shows two different through-perforated ribs 14, a through-hole 12 in the left figure, and a cylindrical rib 14 in which a concave notch is formed on the upper surface in the right figure. Illustrate. As described above, in addition to the rib shape shown, the ring-shaped rib, the honeycomb-shaped rib, and the lattice-shaped rib also have the above-mentioned through holes 12 and concave notches formed between the upper and lower surfaces and the upper and lower surfaces of the ribs. The rib may be configured as the rib of the hollow plate-like body 1.

Since the hollow rib is filled with the water-retaining base material 6 and contains water, the water content is surrounded by the side wall of the rib, so that the hollow rib is kept in a static state without being affected by the external force acting on the hollow plate-like body 1 and contains water. There is no change in the amount of water, so that the amount of water and the weight of the hollow plate-like body 1 are stable. Since the effect of reducing radiation transmission is stabilized by stabilizing the weight and the effect of fixing the radioactive substance is enhanced by the effect of loading the hollow plate-like body 1, the configuration of this form obtains the effect of reducing radiation transmission and fixing the radioactive substance. Suitable for.

<7th embodiment>
The present embodiment is the radiation transmission reducing constituent base material of any one of the second to sixth inventions, and the one or more through holes formed in the surface thin plate are planted with one or more holes having a diameter of 30 mm to 180 mm. It corresponds to a specific example of a configuration having a feature that a hole is partially included.
The present embodiment having this feature will be described with reference to the drawings.

FIG. 11 is a perspective view showing an example of this embodiment. First, a closing member 10 is erected on the peripheral edges of the front thin plate 2 and the back thin plate 3 to close the peripheral edges. The two front closure members are shown removed to make it easier to see the spatial elements inside the hollow plate. Cylindrical ribs 4 are scattered on the upper surface of the back thin plate 3, and the periphery thereof is a water-containing space 5, and the front thin plate 2 shown above the water-containing space 5 and the rib 4 has a strip-shaped penetration. A hole 11 is formed, and the band-shaped through hole 11 includes a planting hole 13.

Although the water-retaining base material is intentionally omitted in this figure, the water-retaining base material is filled in the water-containing space 5 and water is injected from the planting hole and the 13-strip-shaped through hole 11 to form a hollow plate. Water will be stored inside the. Further, although this figure shows a state in which the hollow plate-shaped body is placed horizontally, the hollow plate-shaped body of this form, which is a radiation transmission reducing constituent base material, is erected and plants are placed in the planting holes 13. When planted, the greening of the wall structure is completed. When applying to a green wall in this way, it is recommended to produce a thick hollow plate-like body that can secure the water content required for reducing radiation transmission and the water content required for plants to grow. A plant species can be selected according to the size of the planting hole 13, but a tree can be planted if the planting hole 13 has a diameter of 15 cm.

Further, the water-retaining base material filled in the water-containing space inside the hollow plate-like body is recommended because rock wool is suitable for growing plants. Further, in order to separate the water-containing region necessary for reducing radiation transmission and the water-containing region necessary for plant growth, a hollow rib formed by forming a through hole or a notch in the hollow plate-like body is formed. For example, it is desirable to make the area for planting plants in the area inside the hollow rib.

<8th embodiment>
In the present embodiment, the radiation transmission reducing constituent base material comprises a plurality of impermeable bodies having a main surface, a fixing member for fixing the plurality of impermeable bodies so that the main surfaces face each other, and the plurality of impermeable bodies. It corresponds to a specific example of a configuration in which a water-retaining base material sandwiched between water-impervious bodies and a water pipe or a hollow plate may be provided as a part of the water-retaining base material.
This embodiment will be described with reference to the drawings.

In the upper figure (a) of FIG. 12, a water-retaining base material 6 is provided between the water-impervious plate 19 and the water-impervious plate 19 (or 22), and the two left and right impermeable plates and the water-retaining base material 6 are integrated. It is a perspective view of an example of a radiation transmission reduction constituent base material in which a through hole 12 for inserting a bolt screw which is a fixing member 16 for the purpose of making the water permeates is opened. Further, the lower figure (b) is a cross-sectional view showing a partially fixed portion of the upper figure (a). In the example shown in the figure, the water-retaining base material 6 is sandwiched between the left and right impermeable plates 19 and 22, and by using bolts and nuts as the fixing member 16, the water-retaining plates 19 and 22 and the water-retaining base material 6 are attached. It is a fixed specification that keeps the interval at regular intervals. In this fixing method, although it depends on the shapes of the impermeable plates 19 and 22, it is preferable to integrate at least four places by using bolts and screws and nuts in this way.

The impermeable plate 22 shown on the right side of the figure is a hollow underdrain plate 22 having a impermeable function on the back thin plate as the impermeable plate. According to this configuration, the total weight of the water-retaining base material 6 made of rock wool having a thickness of 7 cm and a water-containing saturated weight of 100 kg / m ² combined with the weight of two impermeable plates of 10 kg / m ² is a factor of radiation. It is estimated that the transmission reduction rate can be reduced to about 50%. Furthermore, when the thickness of the water-retaining substrate 6 is 16 cm, the total weight is 240 kg / m ² , and the radiation transmission reduction rate is about 80%. It is even more useful because it is presumed that it can be used.
In this specification, it is desirable to fix with bolts / nuts and washers as fixing members that match the thickness of the water-retaining base material 6 and the impermeable plate 22, but the fixing member and fixing method can be any fixing member and fixing means. It is possible to make the structure with.

Further, the dry rock wool which is a water-retaining base material sandwiched between the respective impermeable bodies 22 having the facing main surfaces having a width of 1680 mm and a width of 1000 mm, the facing main surfaces having a width of 1000 mm and a width of 750 mm, and the facing main surfaces having a width of 750 mm and a width of 1680 mm. It is also useful for shielding high-concentration doses because it is possible to manufacture a radiation transmission-reducing constituent base material in the form of granular cotton 450 kg and water-containing saturated weight 2600 kg. In addition, in order for the impermeable body 22 to withstand this water content saturated weight of 2600 kg, it is selected to make the joint surface of each main surface by using a lot of connecting members such as I-shaped joints with strength and L-shaped joints with hollow right angles. It is preferable to do so.

In the upper view (a) of FIG. 13, the water-retaining base material 6 is sandwiched between the impermeable plates 19 and 22, and the formation is maintained by using the fixture 16, so that the end portions of the peripheral edges of the left and right impermeable plates 19 and 22 are maintained. The outer thin plate between the ribs at the bent portion of the hollow plate 21 which is one impermeable plate is cut so as to surround the frame, and the inner thin plate at the cut portion is bent at a substantially right angle to form the frame. FIG. 5 is a perspective view of an example before attaching the shaped impermeable plate frame 10 to the end of the peripheral edge formed by sandwiching the impermeable base material 6 between the impermeable plates 19 and 22.
The L-shape for fixing the impermeable plate frame 10 is shown in the figure. It is preferable to use rivets or screws and nuts to join the L-shape and the impermeable plate frame.
The impermeable plates 19 and 22 are marked with through holes 12 for water injection. The through hole 12 is formed by cutting the front thin plate, the back thin plate, and the rib of the hollow underdrain plate 22 into a circle with an electric tool. The circular hollow underdrain plate of the cut hollow portion can be fitted into the through hole after water injection to close the through hole, whereby the original impermeable plate can be restored to its original appearance, so that the water injection port can be opened and closed. The means are preferred. The number of through holes may be plural in consideration of the water injection time.

In addition to the bolts, nuts, and washers of the fixing member 16 shown in the figure, the method of fixing each of the impermeable plates is, for example, using a binding band whose material is made of resin, metal, or fiber woven fabric. A structure having a structure may be manufactured.
In this configuration, since all the peripheral edges of the water-retaining base material 6 are shielded by the impermeable plates 10 and 19, there is no movement of water and the initial water injection amount is permanently retained, so that the radiation transmission reduction rate is more stable. become. Further, it is also possible to stack several impermeable plates 22 in a plurality of layers.

The lower figure (b) of FIG. 13 shows the impermeable plates 19a and 19b having different shapes from the impermeable plates having a smooth surface shape shown in FIGS. 12 and 13 (a). .. The impermeable plates 19a and 19b have a convex surface 97 in which the surfaces of the impermeable plates 19a and 19b are formed in a convex shape. The position having a plurality of the convex portions is the checkered convex surface 97 (see the right figure) shown in the figure on the right side of the figure (b). A structure in which a water-retaining base material is provided in the region space around the convex portion of the impermeable plate and is vertically stacked so that the upper surfaces of the convex portions 97 are butted against each other is also useful. It should be noted that the peripheral edge of the plate having a plurality of the shapes of the convex portions 97 has a side wall erected equal to the thickness of the convex portion 97, and the water-retaining base material is provided in the water-containing space 5 between the two integrally molded impermeable box-shaped plates. A structure in which a structure in which 6 is sandwiched and stacked is integrated with a fixing member 16 is also useful for radiation shielding, and the shape of the convex portion 97 may be formed by unevenness.

13 (c) shows the shield of the radioactive substance contaminant 71 accumulated at the bottom of the gutter 113 to which the gutter 114 and the gutter 113 shown in the perspective view of (f) are connected, and the rainfall flowing in the gutter. It is a perspective view and a cross-sectional view (g) of a radiation transmission reduction constituent base material having a water passage function of the wastewater. All of the impermeable plates 19 shown in the perspective view are vinyl chloride resin plates. Surrounded by the impermeable plate 19, the water retaining base material 6 is filled. A water pipe 108 is provided in a part of the water retention base material 6. The water pipe 108 is a vinyl chloride pipe. The impermeable plate 19 shown below, which is different from the perspective view, is provided with a through hole 12 at substantially the same position as the end surface of the water pipe 108, which matches the size of the end surface of the water pipe 108. The impermeable plate 19 having a through hole is fixed to the end surface of the water pipe 108 by using the screw screw of the fixing member 16. The back surface, which is not shown in the perspective view, is also fixed to the impermeable plate 19 having a through hole 12 having a size matching the end surface of the same water pipe 108 by using the screw screw of the fixing member 16.

Further, the impermeable plate 19 on the upper surface of the perspective view is provided with a through hole 12 of a water injection port 25 for water injection. The through hole 12 is formed by cutting a water-impervious plate 19 made of vinyl chloride resin into a circle with an electric tool. The circular plate of the cut hollow portion can be fitted into the through hole after water injection to close the through hole, whereby the original impermeable plate can be restored to its original appearance. preferable. The number of through holes may be plural in consideration of the water injection time.

Further, the size of the radiation permeation reduction constituent base material having a shielding function of the radioactive substance contaminant 71 existing near the bottom of the gutter and a water passage function may be a size that matches the inner dimensions of the gutter. Further, as an example, in the inner region of the inner bottom of the radiation transmission reducing constituent base material in which the impermeable plate 19 is formed of a green resin in a width of 40 cm, a height of 65 cm, and a length of 102 cm in a side groove having a width of 45 cm. Nine vinyl chloride pipes with an outer diameter of 114 mm and a length of 100 cm are arranged in three rows of three horizontal rows, and a water-retaining base material made by mixing rock wool and activated charcoal is placed in the outer region of the vinyl chloride pipes. The radiation transmission reduction rate of the filled configuration is such that the thickness of the water-retaining base material filled in the upper surface region of the vinyl chloride pipe is 30 cm, and the saturation load of the water injected into the water-retaining base material is 225 kg. It is useful because it is estimated that the transmission reduction rate can be reduced to about 75%. Further, since the saturated load of water of 225 kg including the load of the water-retaining base material becomes a static load without movement, it is also useful for fixing the radioactive substance existing between the outer bottom surface and the gutter of the radiation transmission reduction constituent base material. preferable. Further, it is more preferable that the material of the impermeable plate 19 constituting the radiation transmission reducing constituent base material is added with any one of dark blue, green, blue, black, gray and red pigments for shielding. Since the weight of this radiation transmission reduction constituent base material before water content is as light as about 45 kg, it is useful because it can be installed by 1 to 3 workers in order to install it in the gutter.
Further, as described above, the number of water pipes to be configured does not interfere with the drainage function of the gutter as much as possible, and the outer diameter of the PVC pipe may be taken into consideration. If the outer diameter of the vinyl chloride tube is large, one tube may be used. The thickness and filling amount of the water-retaining base material 6 are preferably calculated so as to be considered to be most effective in reducing the transmission of radiation in consideration of the value of the dose emitted by the radioactive substance. Further, a water-retaining base material 6 in which activated carbon, resin pellets, and powdered rubber are mixed is useful.

The cross-sectional view shown in FIG. (D) is an example of a diagram constituting a radiation transmission reduction constituent base material. According to this configuration, the impermeable plate 19 has a hollow plate 21 in which a plurality of ribs are provided between the front thin plate and the back thin plate, and the water retaining base material shown in the upper surface, the bottom surface, the side surface, the front surface, and the rear surface. It is provided between 19 and the water pipe 108 (horizontal row of vinyl chloride pipes). It is not necessary to provide the impermeable plates 19 on both end faces of the water pipe 108 in the longitudinal direction. However, it is preferable to fix each water pipe 108 to the impermeable plate 19 by using adhesive tape, heat welding, screw screws, bolts, nuts, or other fixing tools. Further, a water injection port 25 for water injection is shown on the upper surface. The water injection port 25 is a square water injection port 25 in which a part of the front thin plate, the back thin plate, and the rib of the hollow plate 21 which is the impermeable plate 19 is not cut. After injecting water into the water retention base material, the hollow plate 21 having the water injection port 25 may be fitted into the water injection port to close the water injection port 25.

In FIG. (E), as in FIG. (D), the impermeable plate 19 has a hollow plate 21 having a plurality of ribs between the front thin plate and the back thin plate, and the top surface, the bottom surface, the side surface, and the front surface (drainage channel). It is provided as a middle plate on the rear surface (excluding the 96 area of the drainage channel), the left and right side walls of the drainage channel 96 shown in the figure, and the side wall thereof. Further, in the cross-sectional view shown, the water-retaining base material 6 is filled between the water-impervious plate 19 on the upper surface and the water-impervious plate 19 in the middle stage. Further, the water retention base material 6 is filled in the space between the outer region from the side wall (water-impervious plate 19 / hollow plate 21) of the drainage channel 96, the water-impervious plate 19 on the side surface and the bottom surface, and the water-impervious plate 19 in the middle stage. .. Further, the impermeable plate 19 on the upper surface is provided with a water injection port 25 for injecting water into the water retention base material 6. When water is injected from the water injection port, the water is flooded into the water retention base material 6 below from the water injection port provided in the impermeable plate 19 provided in the middle stage. According to this configuration, even if a PVC pipe is not configured, it is preferable because it has a function of allowing water to flow to the rear surface leading to the front surface of the radiation transmission reducing constituent base material. Further, fixing member 16 nuts for attaching the front and rear impermeable plates to the upper surface, bottom surface, and side impermeable plates are shown respectively.

In addition, the outer shape of this embodiment can be changed to a circular pipe shape, a square pipe shape, a square bar shape, a round bar shape, a square pillar, a cylinder shape, a pyramid shape, a square trapezoidal shape, a rectangular parallelepiped, a cube, an ellipse, a hemisphere, a sphere, or the like. It may be formed.
This embodiment is also useful for agricultural canals, basins, etc. other than gutters.

Further, the impermeable plate material having this configuration is not particularly limited, and it is preferable to select the material described between [0111] and [0124] described in the embodiment of the first invention. The molding method is preferably a thermoplastic resin, and is preferably molded by extrusion molding, injection molding, or the like, but is not limited thereto. Further, precast concrete, resin concrete, concrete plate, reinforced concrete and metal plate may also be configured to the specifications of the impermeable plate. As a concrete forming method, it is also preferable to form a water-impervious plate by formwork forming, formwork compaction forming, or formwork compression forming. In addition, a molding form (filling with a water-retaining base material) formed into a box shape made of at least one polypropylene resin or polyethylene resin having durability that does not cause deterioration of rust or corrosion, which is different from the water-impervious plate of the base material for reducing radiation transmission. It is also preferable to select and use a container (which constitutes and is equipped with a region and a water passage).

<9th embodiment>
The radiation transmission reducing constituent base material of the ninth invention of FIG. 9B is a plate body formed of a thermoplastic resin, or a back thin plate 3 and a front thin plate 2 are interposed via a plurality of plate-shaped ribs 4. A hollow plate-like body 22 formed by laminating the plate-like bodies in substantially parallel manner to form a drainage channel 96, or a back thin plate 3 and a front thin plate 2 having a plurality of through holes. However, it is composed of a hollow plate-shaped body 22 laminated via a plurality of ribs, the rib is a plate-shaped body 4, and the plurality of plate-shaped bodies are installed substantially in parallel to form a drainage channel 96. The through hole is a band-shaped through hole 11, and is a radiation transmission reducing constituent base material characterized by having a culvert plate structure in which a plurality of band-shaped through holes 11 are formed so as to intersect the plate-like body.

According to this configuration, in order to manufacture the plate body and the underdrain plate structure, it is preferable to manufacture the plate body and the underdrain plate structure in accordance with the description of the material constituting the hollow plate-shaped member specified in the first embodiment. Further, as a specific example of opening the band-shaped through hole is specified in the embodiment of the third invention, it is preferable to carry out the procedure in accordance with the reference. Further, in order to enhance the mechanical strength and the effect of reducing radiation transmission in the plate body and the underdrain plate according to the embodiment of the ninth invention, the plate body, the front thin plate 2, the back thin plate 3, and the plurality of plate-shaped ribs 4 are used. It is preferable to make the plate thicker, and adding an antistatic agent and a pigment when the plate body is manufactured by resin molding and when the material constituting the hollow plate-shaped member is manufactured by resin molding has the effect of reducing radiation transmission. It is preferable because it can be estimated that it will be higher. The color of the pigment to be added is preferably dark blue, blue, green, black, gray, brown, purple, or yellow.

That is, the color of the molded product produced in general resin molding is, for example, translucent when the polypropylene resin is molded. A translucent plate made by molding polypropylene resin and the underdrain plate are preferable for obtaining a radiation transmission reducing effect, but a shielding effect of the translucent resin molded plate, an antistatic agent, and a dark blue or green pigment are used. It can be predicted that the radiation transmission reduction rate with the resin molded product to be added and molded will be different even if the mass of the resin used for molding is the same. Of course, a plate formed by adding an antistatic agent and a pigment, a foam-formed plate, a hollow plate and a hollow underdrain plate are useful because it can be predicted that the radiation transmission reduction rate will be higher. The principle that antistatic agents are effective in shielding radioactive substances is thought to suppress the electromagnetic waves of radiation. It is also conceivable that the density of the translucent polypropylene resin suppresses the electromagnetic waves and heat of radiation. A translucent polypropylene resin is preferable because it is inexpensive because it does not require the addition of a pigment. In addition to the thermoplastic resin, a specification in which the thermosetting resin, FRP resin, or the like is replaced with the thermoplastic resin may be selected. Further, although it depends on the mass and thickness of the plate body, the hollow plate, and the hollow underdrain plate, it is preferable to use them in a plurality of layers because the shielding effect is remarkably exhibited.
The principle of pigment adsorbing radioactive substances is that, for example, if the pore size of a pigment manufactured from minerals or ceramics is approximately the same as the size of the radioactive substance, the radioactive substance is adsorbed in the pores of the pigment. Can be guessed. Further, since it can be inferred that the density and shape of the molding resin also contribute to the reduction of the permeation of radioactive substances, the hollow plate-like body is useful as a lightweight base material for reducing the permeation of radiation because the drainage channel is an air layer.

To provide reinforcement, weather resistance, light resistance, heat resistance, electric resistance, insulation, etc. to the plate body composed of the radiation transmission reduction constituent base material, the front thin plate 2 constituting the hollow plate, and the back thin plate 3. , Polyethylene resin, Polypropylene resin and other polyolefin resins, Polyvinyl chloride resin, Polystyrene resin, Polyacrylic resin, ABS resin, Polyfluorine resin, Polycarbonate resin, Polyester resin, Polyarate resin, Polyethylene Synthetic resin films and aluminum foils of based resins may be laminated by selecting a bonding method such as adhesion, adhesion, vapor deposition, heat fusion, and tacker-needle. It is also preferable to apply an epoxy resin, an acrylic resin, a fluororesin, or a phenol resin on the upper surface of each of the above-mentioned resins or aluminum foils. Further, a picture pattern, a photograph, a character or the like may be printed on the synthetic resin film in order to impart designability or the like. In addition, you may choose to stack rubber-pulled cloth sheets other than those specified in the description of the material constituting the hollow plate-shaped member of the first invention. By laminating such materials, the insulating and heat resistant effects are increased, which is preferable for reducing radiation transmission.

The front thin plate 2, the back thin plate 3 and the rib 4 molded from the thermoplastic resin may be transparent, translucent, or opaque, and are thermoplastic in order to improve weather resistance, photonescence, heat resistance, moldability, and the like. Addition of heat stabilizers, stabilizing aids, bone agents, processing aids, antioxidants, light stabilizers, pigments, antistatic agents, inorganic fillers, plasticizers, etc. that are generally used in resin molding. May be done.
Further, in order to obtain the effect of adsorbing radioactive substances, it is preferable to select any of dark blue, blue, green, black, gray, red, brown, purple and yellow and add the pigment at the time of molding the resin.
Further, the paint may be applied to the surface of the molded plate or the hollow plate-like member, or the paint may be applied to the upper surface to which a binder such as an acrylic resin is applied. It is also preferable to apply a fluororesin or a phenol resin.
Further, ultrafine activated carbon having pores matching the size of the radioactive substance, or zeolite, ultrafine activated carbon and zeolite may be added to the above resin in order to obtain the adsorption effect of the radioactive substance, and the addition may be made. The ultrafine activated carbon and zeolite having a particle size of 980 μm or less are preferable for molding, and are also suitable for adsorption of radioactive substances.

Further, since the hollow plate-like body having an underdrain plate structure in which the band-shaped through hole 11 is bored has a function of smoothly draining rainfall regardless of whether it is a flat surface or a slope, for example, the ground contaminated with radioactive substances. When used by laying it on the upper surface of the soil of farmland or farmland, the drainage effect of rainfall, the reduction of the transmission of radiation emitted from the ground or soil, and the fixation of radioactive substances because radioactive substances are adsorbed on the back thin plate in contact with the ground or soil. It is useful for. In addition, it is useful because it is easy to grow plants such as crops by creating soil with good water retention on the upper surface of the surface thin plate 2 of a hollow plate-like body having an underdrain plate structure in which a band-shaped through hole 11 is bored. Is. It should be noted that there is a void having a drainage channel 96 function between the upper surface region of the front thin plate 2 and the bottom back surface region of the back thin plate 3 where radioactive substances can be estimated to be adsorbed. Due to this void structure, the radioactive substances existing on the bottom and back surfaces are not touched even if the roots of the plants to be planted on the upper surface of the front thin plate 2 are elongated. That is, a hollow plate-like body having an underdrain plate structure is useful because it prevents radioactive substances from being contained in the water absorbed by the roots of the plant.

Other useful uses of this hollow plate structure of the underdrain plate structure include, for example, in the soil of agricultural land where crop production is impossible due to salt damage due to the influence of the tsunami due to having the above-mentioned functions. It is also useful and preferable in the agricultural field because it can be presumed that it has an effect of preventing secondary salt damage on agricultural land that has undergone salt removal work, such as on the upper surface of soil. Furthermore, it is also useful to lay a hollow plate-like body with an underdrain plate structure on the upper surface of the land contaminated with harmful substances. This hollow plate-like body can be manufactured endlessly with a width of 130 cm and a length of 130 cm when it is manufactured by adding additives such as pigments to the resin raw material and using an extrusion molding machine. It is better to manufacture it in a size that matches the shape and area of. The underdrain plate having a hollow plate-like body and a band-shaped through hole 11 is excellent in rigidity. For example, since the drainage channel 96 has a strength that is not destroyed by the load of the outrigger of a large vehicle, it is also preferable in the field of civil engineering drainage work such as construction site construction that requires a permanent drainage function. It should be noted that a plate body, a hollow plate-like body, and a hollow plate-like body in which the band-shaped through hole 11 is bored are useful because they are often provided as the constituent base materials of the present invention.

<10th embodiment>
In the radiation transmission reducing constituent base material of the tenth invention, the back thin plate 3 shown in FIG. 10A and the front thin plate 2 in which a plurality of through holes are formed have a large number of columnar ribs 4. It is configured in the hollow plate-like body 21 before being laminated via the interposition. The drainage channel 96 is formed between the columnar ribs, and the strip-shaped through hole 11 of the twelfth invention is formed in the perspective view. The front thin plate 2, the back thin plate 3, and a plurality of ribs are integrally formed.
In addition, Fig. A shows an annular rib, Fig. A shows a square hourglass rib, Fig. C shows a cylindrical rib, and Fig. D shows a plate-like body inside the cylindrical rib. The shape is shown. It is preferable to select one of such rib shapes to manufacture this radiation transmission reducing constituent base material. Further, according to this configuration, in order to manufacture the hollow plate-shaped body 22, it is preferable to manufacture the hollow plate-shaped body 22 in accordance with the description of the material constituting the hollow plate-shaped member specified in the first embodiment. Further, as a specific example of opening the band-shaped through hole 11, it is specified in the third embodiment, and it is preferable that the band-shaped through hole 11 is formed in accordance with the reference. Further, in order to enhance the mechanical strength and the effect of reducing radiation transmission in the underdrain plate of the tenth embodiment, it is preferable to increase the thickness of the front thin plate 2, the back thin plate 3, and the plurality of ribs 4, and the number of ribs is increased. It is good to do it.

Further, the color of the molded product produced in general resin molding is, for example, translucent when the polypropylene resin is molded. Semi-transparent front thin plate 2 back thin plate 3 made by molding polypropylene resin which is an insulating polymer It is preferable that a plurality of ribs 4 have a radiation transmission reducing effect, but further, when the polypropylene resin is manufactured by molding. It is considered that the addition of antistatic agents and pigments will further enhance the effect of reducing radiation transmission. Further, it is preferable to add activated carbon and zeolite because it is considered that the effect of reducing radiation transmission is further enhanced. The color of the pigment added when the polypropylene resin is manufactured by molding is preferably dark blue, blue, green, black, gray, or red. The resin mass of the material is the same for the semi-transparent resin molded product that is generally molded and the molded product that is molded by adding an antistatic agent, a dark blue or green pigment, and further adding activated carbon and zeolite. But it can be inferred that it is different. Further, the hollow plate-like body having an underdrain plate structure in which the band-shaped through hole 11 according to the twelfth invention is formed has a function of smoothly draining rainfall regardless of whether it is a flat surface or a slope. Therefore, for example, it is radioactive. When used by laying it on the ground surface contaminated with substances or on the upper surface of the soil of agricultural land, the drainage effect of rainfall, the reduction of the transmission of radiation emitted from the ground or soil, and the radioactive substances are adsorbed on the back thin plate in contact with the ground or soil. Therefore, it is useful for fixing radioactive substances. Further, the hollow plate-shaped body 22 has a structure in which the peripheral side surface of the plate-shaped body serves as a drainage port. The advantage that this peripheral side surface serves as a drainage port is preferable in terms of workability because it is not necessary to align the directions of the drainage channels when laying a plurality of sheets connected to each other on the upper surface of the land having a slope.

To provide reinforcement, weather resistance, light resistance, heat resistance, electric resistance, insulation, etc. to the plate body composed of the radiation transmission reduction constituent base material, the front thin plate 2 constituting the hollow plate, and the back thin plate 3. , Polyethylene resin, Polypropylene resin and other polyolefin resins, Polyvinyl chloride resin, Polystyrene resin, Polyacrylic resin, ABS resin, Polyfluorine resin, Polycarbonate resin, Polyester resin, Polyarate resin, Polyethylene Synthetic resin films and aluminum foils of based resins may be laminated by selecting a bonding method such as adhesion, adhesion, and vapor deposition. It is also preferable to apply an epoxy resin, a fluororesin, or a phenol resin on the upper surface of each of the above-mentioned resins or aluminum foils.

<14th embodiment>
According to the configuration of the fourteenth invention, both ends (closed end face 9) or the peripheral edge of the drainage channel 96 shown in FIG. 58 are closed or partially closed, and the drainage channel 96 can store water. It is a cross-sectional view showing that the surplus water 58 can be drained from a part of the drainage channel 96 or a through hole over the rib at the end. In the configuration of this cross-sectional view, the drainage channel 96 is filled with the water-retaining base material 6. Since the water-retaining base material is filled, for example, even if the radiation permeation reduction constituent base material is provided on the inclined surface, only the surplus water 58 moves and the water-retaining base material contains water as the movement of the water that has entered the drainage channel from the through hole. The water will remain stationary. That is, although there is an action of exchanging water content and incoming water, it is preferable to keep a certain amount of water in a stationary state in the water retention base material of the drainage channel 96 because the effect of reducing radiation transmission is continued.

<16th embodiment>
According to the configuration of the sixteenth invention, at least one of the plurality of ribs 4, the front thin plate, and the back thin plate 3 is fitted with the same other radiation transmission reduction constituent base material to obtain the other. The radiation transmission reduction constituent base material according to any one of the inventions 21 to 15, which includes a fitting portion that enables connection with the radiation transmission reduction constituent base material.
FIG. 16 is a cross-sectional view showing a cross-sectional shape of a hollow plate-shaped body 1 suitable for connecting a plurality of hollow plate-shaped bodies 1. As shown in the above figure (a), the front thin plate 2 and the back thin plate 3 are supported by a plurality of ribs 4, and the water-retaining base material is contained in the water-containing space 5 surrounded by the front thin plate 2, the back thin plate 3, and the rib 4. 6 is filled. The left and right ends of the hollow plate-like body 1 have ribs 4 having a shape that enables fitting. That is, the ribs 4 having different shapes on the left and right of the two hollow plate-shaped bodies 1 are fitted to each other as shown in the central portion of the figure (b) below. As an example, the thickness of the front thin plate 2 and the back thin plate 3 of the hollow plate-like body 1 is 3 mm, the thickness of the plurality of ribs 4 is 2 mm, and the ribs 4 having the fitting shape at both ends are also 2 mm, and the ribs 4 The distance between the rib 4 and the rib 4 is 30 mm, the thickness of the hollow plate-like body 1 is 35 mm, and the length of the rib 4 in the longitudinal direction is 6 m. The weight of the hollow plate-like body 1 in the water-containing saturated state is about 50 to 70 kg / m ² depending on the content of the water-retaining base material 6, and the radiation shielding rate is about 25% to 35%. Can be estimated. The hollow plate-like body 1 is preferably manufactured by extrusion molding using a vinyl chloride resin as a main material.

Further, when a plurality of hollow plate-shaped bodies 1 on which the fitting shape ribs 4 are formed are fitted, a wall having a large area can be easily constructed, which is useful in a place where radiation shielding is required. In addition, since decomposition is easy, if the hollow plate-like body 1 is configured into four layers, the radiation shielding rate will be about 75% (the radiation dose will be reduced to about 25%), and shielding is required. Suitable for. The standard of each member of the hollow plate-shaped body 1, the front thin plate 2, the back thin plate 3, and the plurality of ribs 4 described above is an example. For example, if the thickness is formed to 140 mm, the radiation shielding rate becomes about 75%.

<17th embodiment>
The radiation transmission reducing constituent base material of the seventeenth invention is made of a vertical wall having a through hole or a vertical wall having no through hole, and is formed by a joint having an I-shaped cross section or a hollow L-shaped right-angled portion. The radiation transmission reducing constituent base material of any one of the first to fifteenth inventions is connected and made into a large plate. The present embodiment having this feature will be described with reference to the drawings.

FIG. 59 is a cross-sectional view of a joint having a cross-sectional shape I-shaped 43 and a joint 43 having a hollow corner L-shaped cross section showing an example of this embodiment. In the above figure (a), the water-retaining base material 6 is filled in the water-containing space 5 between the front thin plate 2, the back thin plate 3, and the plurality of ribs 4 in the I-shaped joint 43, and water is injected into the water-retaining base material. It shows that the radiation transmission reducing base material is inserted. The lower view (b) shows that the radiation transmission reducing base material shown in the upper figure is inserted into the right-angled hollow L-shaped joint 43. The cross-sectional shape I-shaped 43 or the corner hollow L-shaped joint 43 is integrally molded with aluminum. As shown in the figure, since the radiation transmission reducing base material is connected with almost no gap, it is useful for preventing the scattering of radioactive substances from the gaps at the connection points and reducing the radiation transmission. It is also preferable for maintaining the strength of the connection portion. This cross-sectional shape I-shaped joint 43 and the right-angled hollow L-shaped joint 43 are frequently used, and it is useful because the radiation transmission reducing constituent base material of any one of the first to 17th inventions can be made into various shapes. .. For example, select as a joint for a cube, a rectangular parallelepiped, a triangular pyramid, a quadrangular pyramid, a quadrangular pyramid, a quadrangular prism, or a wall material of a triangular prism. It is preferable because it can be connected. The cross-sectional view (c) shows a hollow I-shaped joint made of vinyl chloride resin. A hollow plate including a plate-shaped rib 4, a front thin plate 2, and a back thin plate 3 is shown. The cross-sectional view (d) shows a hollow plate including a plate-shaped rib 4 fitted to a right-angled hollow L-shaped joint made of vinyl chloride resin, a front thin plate 2, and a back thin plate 3. .. The cross-sectional view of FIG. (E) is an example, but the end face of the hollow plate including the plate-shaped rib 4, the front thin plate 2, and the back thin plate 3 is closed by the hollow circular closing member 10.
A through hole is made in the base material to be connected and the I-shaped joint 43, the I-shaped joint 43, or the right-angled hollow L-shaped joint 43, and fixing members such as bolts, nuts, screw screws, nuts, washers, and rivets are used. It is more preferable to fix it.

<18th embodiment>
The radiation transmission reducing constituent base material of the eighteenth invention is a slatted, corrugated, uneven, box-shaped, rectangular parallelepiped, or cubic body on the surface thin plate of the radiation transmission reducing constituent base material of any one of the first to the seventh inventions. Alternatively, it is a radiation transmission reducing constituent base material in which a culvert or a molded body, which is in the shape of a gutter and has through holes formed in the thickness direction, is laminated.
The upper figure (a) of FIG. 60 shows a box-shaped (box body 37) showing an example of this embodiment, and is an upper surface in which an activated carbon adhering sheet 17 is laid on the upper surface of a radiation transmission reducing constituent base material of the third invention. It is sectional drawing which shows that it is provided in. A plurality of through holes 12 are provided in the thickness direction of the bottom of the box body 37. The inside of the box 37 is filled with soil 33, which is a mixture of a cotton-like material of rock wool fibers containing water, fertilizer, and rotten leaves. This structure is also useful for the production of crops, flowers or wood. It should be noted that it is preferable because it has a static water-containing load that is useful for shielding radioactive substances.

The lower figure (b) is a cross-sectional view showing that the concrete block of the rectangular parallelepiped shape 107 is provided on the upper surface of the radiation transmission reducing constituent base material of the third invention which is the same as the upper figure (a). A through hole 12 is provided in the concrete block in the thickness direction to prevent rainfall from accumulating on the surface of the concrete block. Also, concrete blocks can be used as planting blocks. In order to make the planting block specification, if the inside of the through hole 12 is filled with soil dressing for planting and plants such as turfgrass are planted, it may be suitable for greening a parking lot or the like. Further, selecting a concrete block having water retention is preferable because it suppresses the heat island together with the effect of the present invention. Further, a drainboard-shaped, corrugated plate-shaped, uneven-shaped, box-shaped, rectangular parallelepiped, cube or gutter-shaped material made of resin or wood may be selected and replaced with the planted concrete block. Although not specified in the figure, a non-woven fabric having a thickness of about 0.3 mm to 5 mm may be laminated between the rectangular parallelepiped shape 107 and the radiation transmission reducing constituent base material of the third invention. Further, it is preferable to provide the structures shown in the upper and lower figures on the upper surface of the portion contaminated with radioactive substances in order to reduce the transmission of radiation.

<19th embodiment>
In the embodiment of the nineteenth invention, the nonwoven fabric and / or the ultrafine activated carbon is adhered or impregnated on the front thin plate side or the back thin plate side of the radiation transmission reducing constituent base material of any one of the first to eighteenth inventions. The non-woven fabric is laminated or bonded. As an example, when the non-woven fabric to which the ultrafine-grained activated carbon is attached is attached to the surface thin plate side of the first invention, the activated carbon is uniformly held on the non-woven fabric, and the adsorption effect of the activated carbon can be obtained in a planar manner, which is preferable. It is preferable that the means for bonding is bonding, heat fusion, adhesion, or bonding using a tacker needle in addition to adhesion, heat fusion, and adhesion. Moreover, any method may be used. Since the water-retaining base material contains water, it is useful because it becomes a radiation transmission reduction constituent base material having both a water-containing load shielding element and a planar adsorption element and having a radiation transmission reduction. The activated carbon attached to the non-woven fabric may have a particle size of 1200 μm or less. Further, in order to require the chemical adsorption effect of activated carbon, it is preferable to select ultrafine activated carbon having a particle size of 1000 μm or less.

<23rd embodiment>
In the embodiment of the 23rd invention, rock wool fibers or a molded product thereof are laminated on the surface thin plate side of the radiation transmission reducing constituent base material of any one of the inventions 1 to 22. Since rock wool fiber is mainly made of blast furnace slag generated during iron making, it is preferable for the creation of green spaces because it is not mixed with weed seeds unlike general soil. In addition, it has excellent heat insulating properties. It is preferable because its heat insulating property can be expected to be effective in reducing radiation transmission. Moreover, since it has water retention, it is useful for the present invention.

<24th embodiment>
In the embodiment of the twenty-fourth invention, the molded body of the rock wool fiber of the twenty-third invention is a non-woven fabric, a felt-like body, a plate-like body, a square bar, a granular material, or a cotton-like material. Further, a form in which a turtle wire net is bonded to the surface of the rock wool fiber molded body, a form in which the surface of the molded body is coated with a glass cloth, and an aluminum foil and a glass fiber sheet are bonded to the surface of the molded body. It contains rock wool fiber in the form of laminated aluminum cloth.
In any of the above-mentioned molded bodies, inside the bag body formed in the bag body in which the peripheral portion of the radioactive substance adsorption sheet of the 21st or 22nd invention is closed or closed with a partial opening left. Since the form is filled as a water-retaining base material or a void-retaining base material, the shape of the water-retaining base material is maintained even if the water-retaining base material contains water, which is preferable. It is also preferable for pressure resistance and durability. This is useful because it reduces the transmission of radiation for a long period of time.

<25th embodiment>
In this embodiment of the 25th invention, the peripheral edge of at least one of a water-impervious sheet, a moisture-proof film, and a two-layer sheet in which a moisture-proof film and a water-impervious sheet are laminated is closed or partially opened. The rock wool molded body of the 24th invention or the invention of the 71st, 72 or 74th invention in the bag form which is closed except for the above, or the inside of the bag shape in which a plurality of holes are formed in the water-impervious sheet and the moisture-proof film. Since it is in the form of being filled with any of the above water-retaining base materials, there is no change in the amount of water retained. Therefore, it is preferable because the effect of reducing the shielding of the dose can be expected for a long period of time. As an example, the bag has a width of 70, a width of 40, and a width of 20 cm, and the dry weight of the bag is about 20 kg, but the water content saturation weight is 120 kg. This load is preferable because it is useful for reducing radiation transmission.

<26th embodiment>
In the embodiment of the 26th invention, the radiation transmission reduction constituent base material of the 25th invention is provided on the upper surface of a portion contaminated with a radioactive substance, and the radiation transmission reduction constituent base material of the 25th invention is described. Since the radiation transmission reducing constituent base material according to any one of the inventions 1 to 22 is laminated on the upper surface of the above surface, the effect of reducing radiation transmission is increased, which is preferable.

<27th embodiment>
An embodiment of the 27th invention is the 23rd or 24th invention in which a recess or a through hole is formed in a molded body of rock wool fiber. When a concave portion or a through hole is formed in a rectangular parallelepiped or a cubic molded body made of rock wool fiber, it is preferable that the concave portion is easily filled with finely shaped carbon or the like, which is useful for reducing radiation transmission. It should be noted that a plurality of recesses is preferable.

<29th embodiment>
In the embodiment of the 29th invention, the radiation transmission reducing constituent base material of any one of the inventions 1 to 23 is bent, or side walls are erected at both ends of the radiation transmission reducing constituent base material to form a groove. Therefore, it is preferable to install it in a gutter contaminated with a radioactive substance because it is considered to be useful for reducing the radiation emitted by the radioactive substance existing on the inner wall surface and the bottom surface of the gutter. Further, the groove-shaped both ends are provided with another member or the radiation transmission reducing constituent base material of any one of the first to twenty-third inventions, and when fixed by the fixing member, a box-like body is formed. You can choose to store contaminants that are contaminated with. It is preferable to form a lid of the base material on the upper surface.

<31st embodiment>
The embodiment of the thirty-first invention is a radiation protection green area using the radiation transmission reduction constituent base material in which a soil layer is laminated on the upper surface of the radiation transmission reduction constituent base material of any one of the inventions 1 to 30. Measures to prevent the spread of radioactive materials It is a greening structure. The soil of the soil layer may be a material having water retention, but more preferable materials are soil having an aeration environment suitable for growing plant roots, a carbon environment, a trace element fertilizer environment, and a drainage environment. Should be selected. The load of soil with water retention is useful for reducing radiation transmission.

<32nd embodiment>
The embodiment of the thirty-second invention is a radiation protection green area and a radioactive substance diffusion prevention measure green area structure using the radiation transmission reduction constituent base material of the thirty-first invention in which turfgrass is planted in a soil layer. .. According to the present invention, the plant can be grown as forcing cultivation, which is useful. Since turfgrass can grow in both warm and cold regions, it is useful because it can contribute to improving the living environment of children in schoolyards, gardens, parks, etc. In the case of soil with a high water content, water may seep out from the soil to the lawn surface. The turf of the present invention has a water content of 90% by volume, but water seeps out to the lawn surface and water. The accumulation phenomenon does not occur. Therefore, it is suitable for sports. Of course, it is suitable for reducing radiation transmission due to the high water content and the base material constituting the soil.

<Thirty-third embodiment>
In this embodiment of the 33rd invention, rock wool fibers or a molded body thereof and a soil layer are alternately laminated on a soil layer, and the uppermost surface is rock wool fibers or a molded body or a soil layer thereof. It is a radiation protection green area and a radioactive substance diffusion prevention measure green area structure using the radiation transmission reduction constituent base material of the 31st or 32nd invention. It is preferable to provide such a soil layer because the thermal environment in the soil layer is stable. This structure is useful because it can be inferred that innumerable microvoids and water content prevent the soil from becoming hot, that is, the invention suppresses the heat-related action of radiation.

<Thirty-fourth embodiment>
In the embodiment of the thirty-fourth invention, a large number of through holes or strip-shaped through holes are formed between the rock wool fiber or its molded body and the soil layer, in the rock wool fiber or its molded body or in the soil layer. It is the 33rd invention in which a hollow plate-like body is laminated by laminating a front thin plate and a back thin plate having a large number of through holes or strip-shaped through holes formed through a plurality of ribs. According to the structure of the present invention, since the rock wool fibers are sandwiched between at least two hollow plate-like bodies, the movement of water contained in the rock wool fibers is maintained as a substantially static state. It is preferable because the load caused by water content, which is useful for reducing radiation transmission, and the soil water content region required by the planted plant are formed in the upper and lower layers, so that the water absorption activity of the roots of the plant is not hindered. In addition, it can be presumed to be useful for reducing radiation transmission.

<Fifth Embodiment>
The structure for reducing radiation transmission according to the 50th invention has any one of a plurality of plate-like, cylindrical, conical trapezoidal, honeycomb-like, prismatic, prismatic trapezoidal, and lattice-shaped front thin plates 2 and back thin plates 3. Select any of the hollow plate-like body 21, the resin plate, the resin sheet, and the rubber sheet laminated via the ribs of the above, or the upper surface of the radiation transmission reducing constituent base material according to any one of the first to the seventh inventions. The underdrain shape is plate-shaped, box-shaped, gutter-shaped, saw-shaped, uneven, sponge-shaped or corrugated, and the thickness is 0.03 mm or more on the upper surface of the base material having multiple through holes. Non-woven fabric with a grain size of 10 g / m ² or more / or non-woven fabric with or impregnated with activated charcoal, two non-woven fabrics are joined in a grid pattern, and fertilizer or a mixture of fertilizer and activated charcoal is placed between the upper and lower non-woven fabrics of the resulting lattice. ^{A grain-shaped molded body having a density of 25 kg / m 3} or more made of rock wool fiber is laminated on the upper surface of which at least one of the plant growing sheets in which is enclosed is laminated, and a soil layer 33 is further laminated on the upper surface of the rock wool fiber. It is a radiation protection green area and a radioactive substance diffusion prevention measure green area structure using the radiation transmission reduction constituent base material which is characterized by being laminated.

FIG. 55 (a) is a bottom view showing a box body 37 molded of polypropylene resin.
The cross-sectional view (b) of the middle stage is placed on the upper surface of the hollow plate 21 so that the bottom surface of the box body 37 shown in FIG. The activated carbon-attached water-permeable sheet 17 is laminated on the upper surface of the bottom surface. FIG. 3 is a cross-sectional view in which a rock wool cotton-like body 101 having a density of 25 kg / m3 or more and a soil 33 are laminated on the upper surface of the activated carbon-adhered water-permeable sheet 17. When the soil structure configured in this way is placed on a place where the radiation dose shows a relatively high value, the dose permeating the soil structure is reduced. In order to increase the reduction rate, it is preferable to increase the mass of the soil 33 and the rock wool cotton-like body 101 so that the water content of the soil 33 and the rock wool cotton-like body 101 is large. Further, when pigments such as dark blue, blue, green, black, gray, and brown are added to the polypropylene resin which is a thermoplastic resin when the box body 37 is molded from the resin, the pigment pores and the ultrafine particles having a large pore surface area are added. It is preferable because it can be inferred that the dose permeating the soil structure is reduced due to the voids and water content of the rock wool fibers made of activated carbon and minerals. That is, the shielding factor other than the load of the structure is that the electromagnetic wave of radiation is suppressed by the polypropylene resin having an insulator. Then, it is conceivable that the fine voids composed of fiber-shaped minerals and carbon suppress the heat conduction of radiation. Furthermore, it is considered to be based on the fact that water, which is a compound of hydrogen and oxygen, is integrated in a large amount. Further, as it can be inferred that the transmission of the radiation amount is reduced, it is also preferable to select any one of the first to seventeenth inventions and replace the hollow plate 21 with the hollow plate 21. It should be noted that a configuration in which one or more of the first to seventeenth inventions is selected is also preferable. The box body 37 is an example of the present invention and is not limited thereto.

In the configuration of the cross-sectional view shown in the figure (c) below, the activated carbon-adhered water-permeable sheet 17 is laid on the upper surface of the hollow underdrain plate 22 made of polypropylene resin which is a thermoplastic resin. Rock wool cotton-like body 101 shown in FIG. (a) so that the bottom surface of the box body 37 faces upward. It is laminated from the upper surface of the sheet 17 to the inner region of the box 37. The soil 33 is laminated on the upper surface of the rock wool cotton-like body 101. Then, the plant 95 is planted in the soil 33 in the circular inner region of the box body 37. The thickness of the box body 37 is 18 cm. The total weight of the soil 33 formed in this thickness region, the weight of the water-containing saturated body of the rock wool cotton-like body 101, and the weight of the hollow underdrain plate 22 is about 240 kg / m ² , and the radiation transmission reduction rate is about 80. It is estimated that it can be%. Since it can be predicted that the addition of dark pigments such as blue, green, and black to the polypropylene resin which is a thermoplastic resin will improve the radiation transmission reduction rate, it is preferable to select the pigment addition. The shielding factor other than the load of the structure is that the electromagnetic wave of radiation suppresses the electromagnetic wave by the polypropylene resin having an insulator. Then, it is conceivable that the heat conduction of radiation is suppressed by the action of oxygen existing in the pores of activated carbon having innumerable pores and the fiber-shaped slag composed of innumerable voids. Furthermore, it is considered to be based on the fact that water, which is a compound of hydrogen and oxygen, is integrated in a large amount. In addition, a disaster prevention non-woven sheet made mainly of aramid fiber is laminated on the upper surface of the soil of the soil structure with this structure, and the structure is integrated with bolts, nuts, etc. of multiple fixing members to green the shielding wall of radioactive substances. It is preferable because it can be manufactured and provided as a structure. Therefore, the 50th invention is useful.

<51st embodiment>
In the structure for reducing radiation transmission according to the 51st invention, the front thin plate and the back thin plate are ribs having a plurality of plate-like, cylindrical, conical trapezoidal, honeycomb, prismatic, prismatic trapezoidal, and lattice shapes. Select one of a hollow plate-like body, a resin plate, a resin sheet, and a rubber sheet laminated via Is plate-shaped, box-shaped, gutter-shaped, saw-shaped, uneven, sponge-shaped or corrugated, and has a thickness of 0.03 mm or more and a grain size of 10 g on the upper surface of the base material having multiple through holes. / M ² or more non-woven fabric / or non-woven fabric to which activated charcoal is adhered or impregnated, two non-woven fabrics are joined in a grid pattern, and fertilizer or a mixture of fertilizer and activated charcoal is sealed between the upper and lower non-woven fabrics of the resulting lattice. A non-woven fabric containing fertilizer, leaf mold, minerals and rock wool fibers is laminated on the upper surface of which at least one of the non-woven fabric growing sheets is laminated. Anti-diffusion measures It is a green structure.

56 (a) to 56 (d) are cross-sectional views showing an example of the constituent base material of this embodiment. In FIG. (A), a cushion material 104 in which resins are overlapped in a thread shape and formed in a sponge shape is laminated on the upper surface of a hollow plate-shaped body 22. A non-woven fabric 17 having activated carbon adhered to the sponge-like upper surface is laminated. A soil layer 33 containing fertilizer, leaf mold, minerals and rock wool fiber 101 is laminated on the upper surface of the nonwoven fabric 17 to a thickness of 15 cm. In FIG. (B), a plate-shaped support member 105 is alternately configured and laminated on the upper surface of the hollow plate-shaped body 22 with the cushion material 104 formed in the sponge shape described above. A non-woven fabric 17 to which activated carbon is attached is laminated on the upper surface thereof. A soil layer 33 containing fertilizer, leaf mold, minerals and rock wool fiber 101 is laminated on the upper surface of the nonwoven fabric 17 to a thickness of 15 cm.

In FIG. (c), the base material shown in the front view and the cross-sectional view (b) of the side surface in FIG. 57 (a) is laminated on the upper surface of the hollow plate 21. In this base material, the cushion material 104 formed in the shape of a sponge is housed in the inner region of each triangle of the rectangular support material 105 having a height of 5 cm as shown in the figure. It is a support base material in which a cushion material 104 having a thickness of 2 cm and a support material 105 are combined. A non-woven fabric 17 having activated carbon adhered to the upper surface of the supporting base material is laminated. A soil layer 33 containing fertilizer, leaf mold, minerals and rock wool fiber 101 is laminated on the upper surface of the nonwoven fabric 17 to a thickness of 15 cm.

In FIG. (D), the non-woven fabric 17 to which activated carbon is adhered is laminated on the upper surface of the hollow plate-shaped body 22 in which the supporting base material laminated in FIG. ing.
A soil layer 33 containing fertilizer, leaf mold, minerals and rock wool fiber 101 is laminated on the upper surface of the nonwoven fabric 17 to a thickness of 15 cm.
The load of each of the soils (a) to (d) shown in FIG. 56 is about 200 kg in a water-containing saturated state.
This load is preferable because it can reduce the transmission of radiation.

Further, in the cross-sectional view shown in FIG. 56 (c), the thickness is on the cushion material 104 having a thickness of 2 cm, which is formed in the shape of a sponge by overlapping the resin in a thread shape on the upper surface of the hollow plate-shaped body 22. Activated carbon on the upper surface of the support base material in which the rock wool fiber 101 having a height of 3 cm is housed in the inner region of each triangle of the rectangular support material 105 having a height of 5 cm shown in the above figures (a) and (b). The non-woven fabric 17 to which is attached is laminated. A soil layer 33 containing fertilizer, leaf mold, minerals and rock wool fiber 101 is laminated on the upper surface of the nonwoven fabric 17 to a thickness of 15 cm. The combined load of the rock wool fiber 101 layer having a thickness of 3 cm and the soil layer 33 having a thickness of 15 cm stored in the supporting base material is about 230 kg in a water-containing saturated state. This load is preferable because it can reduce the transmission of radiation.

<Eighth Embodiment>
The radiation transmission reducing wall structure of the 80th invention is filled with a net-proof flame sheet formed by laminating a plate material or a non-combustible sheet or a flame-proof sheet arranged so as to form a container, and the inside of the container. The board or net-proof flame sheet comprises a water-retaining substrate or a water-retaining substrate and a gas phase portion, and the plate material or the net-proof flame sheet has a through hole or a notch that enables planting or water injection, and reduces radiation transmission. Wall structure.
FIG. 48 (a) above is a cross-sectional view showing a side surface of an example of this embodiment.
According to this configuration, the hollow plate-like body 22 whose front surface, bottom surface, and back surface forming a slope are made of polypropylene resin which is a thermoplastic resin is made of aluminum, and the corner hollow L-shaped joint of the seventeenth invention is made. It is formed by using three 29s. The joint portion between the joint 29 and the hollow plate-shaped body 22 is fixed with a screw screw. Further, at the upper corner of the front surface of the hollow plate-shaped body 22, the surface thin plate is cut and the cut is bent to form an upper surface. The rear end portion of the upper surface is fitted into the joint 29 and fixed by the screw screw of the fixing member.

It should be noted that a plurality of through holes 13 for planting are provided in the front sheet 41, which is a glass fiber woven fabric on the front surface. A through hole 13 for planting is provided in the hollow plate-shaped body 22 on the inner surface thereof at the same position as the sheet 41, which is a glass fiber woven fabric on the front surface. Further, the inner region of the hollow plate-shaped body 22 is filled with a water-retaining base material 6 whose main materials are rock wool and activated carbon. Further, the back surface of the water-retaining base material 6 is provided with rock wool, which is a water-repellent heat insulating material 42 that does not contain water and constitutes the gas phase portion 118. Then, four planting through holes 13 having a diameter of 20 cm are opened on the upper surface, and the plant 95 is planted. In addition, plants 95 are planted in a plurality of planting through holes 13 provided on the front surface. This self-standing radiation transmission reduction wall structure has a height of 130 cm, a width of 100 cm, a bottom depth width of 50 cm, and a top surface depth width of 25 cm. The load is 470 kg in the water content saturated state. Due to the total load, the load related to the depth width, and the constituent base material of the present invention, for example, the dose emitted from the radioactive material existing in the land behind the back surface of the radiation transmission reduction wall structure is the radiation transmission reduction wall structure. It is preferable because it can sufficiently reduce the penetration to the front surface of the body. Water injection may be performed from the planting through hole 13. Further, rainfall is also preferable because water falls from the planting through hole 13 to the water retention base material 6 inside the radiation transmission reducing wall structure.

<81st Embodiment>
In the radiation transmission reducing wall structure of the 81st invention, the container has a slope, and a strip-shaped through hole extending substantially horizontally is formed in a region of the plate material forming the slope. The radiation transmission reduction wall structure of the present invention.
The lower figure (b) of FIG. 49 is a front partial view showing a band-shaped through hole of this embodiment.
Polypropylene resin, which is a thermoplastic resin fitted into the I-shaped aluminum-molded joint 29 shown vertically between the square hollow L-shaped joints 29 shown horizontally above and below. A plurality of strip-shaped through holes 11 are formed in the formed hollow plate-shaped body 22. The width of the band-shaped through hole may be selected from 2 mm to 10 mm. Further, in the hollow plate-shaped body 22, a plurality of through holes 12 are provided in the front thin plate and the back thin plate of the hollow plate-shaped body 22. A woven fabric 41 made of glass fiber is bonded to the front surface of the hollow plate-shaped body 22. A through hole 13 for planting is opened in this woven fabric 41, and a plant 95 is planted. When the strip-shaped through hole 11 and the through hole 12 are formed at intervals in the hollow plate-like body 22 forming the slope in this way, when rainfall falls on the surface of the radiation transmission reduction wall structure, rainwater Penetrates the surface glass fiber woven fabric from the top of the slope to the bottom and runs water. The flowing water flows down into the strip-shaped through holes 11 and the through holes 12 formed in the lateral direction and is contained in the water retention base material. Since the radiation transmission reducing wall structure in which both through holes are formed is excellent in the function of collecting water from the water retention base material, it is preferable to supplement the water content consumed by the plant with rain. That is, it is preferable for maintaining the water-containing load of the water-retaining base material, which is indispensable for reducing radiation transmission.

<The 82nd embodiment>
An embodiment of the 82nd invention is the radiation transmission according to the 80th or 81st, which is installed inside the container and further includes a frame for maintaining the shape of the plate material or the net-proof flame sheet as a container. It is a reduced wall structure.
FIG. 49 (a) above is a cross-sectional view showing a side surface of an example of this embodiment.
According to this configuration, the hollow plate-shaped body 22 whose front surface, bottom surface, and back surface forming a slope are made of polypropylene resin which is a thermoplastic resin is used, and three corner hollow L-shaped joints 29 of the seventeenth invention are used. Is formed. The joint portion between the joint 29 and the hollow plate-shaped body 22 is fixed with a screw screw.
Further, at the upper corner of the front surface of the hollow plate-shaped body 22, the surface thin plate is cut and the cut is bent to form an upper surface. The rear end portion of the upper surface is fitted into the joint 29 and fixed by the screw screw of the fixing member. The net-proof flame sheet 106 on the front surface is provided with a plurality of through holes 13 for planting. A through hole 13 for planting is opened in the hollow plate-shaped body 22 on the inner side surface at the same position as the through hole 13 for planting of the netproof flame sheet 106, and is attached to the hollow plate-shaped body 22. Further, a resin plate, which is an aggregate 102, is assembled in a frame shape using bolts and nuts of the fixing member 16 in the inner region of the hollow plate-shaped body 22. Examples of this skeleton shape are shown in the perspective views of FIGS. 50 and 53 and the cross-sectional view of FIG. 52.

Further, the inner region of the hollow plate-like body 22 is filled with a rock wool plate 42 which is also a gas phase portion and a water-retaining base material 6 whose main materials are rock wool and activated carbon. Then, four planting through holes 13 having a diameter of 20 cm are opened on the upper surface, and the plant 95 is planted. In addition, plants 95 are planted in a plurality of planting through holes 13 provided on the front surface. This self-standing radiation transmission reduction wall structure has a height of 130 cm, a width of 100 cm, a bottom depth width of 50 cm, and a top surface depth width of 25 cm. The load is 480 kg in the water content saturated state. Due to the total load, the load related to the depth width, and the contents of the water retention base material 6, for example, the dose emitted from the radioactive material existing in the land behind the back surface of the radiation transmission reduction wall structure is radiation transmission. Reduction It is preferable because it can sufficiently reduce the permeation to the front surface of the wall structure. Water injection may be performed from the planting through hole 13. Further, rainfall is also preferable because water falls from the planting through hole 13 to the water retention base material 6 inside the radiation transmission reducing wall structure.

<Embodiment of the 83rd>
In the embodiment of the 83rd invention, the plate material is a resin plate.
The invention of any one of 80th to 82nd, wherein the radiation transmission reducing wall structure further includes a flameproof sheet laminated on the surface of at least a part of the resin plate or the netproof flame sheet. FIG. 51 is a cross-sectional view of a side surface showing an example of this embodiment.
According to this configuration, the front surface, the bottom surface, and the back surface forming the slope are made of polypropylene resin, and the hollow plate-like body 22 is made of aluminum. Is formed. The joint portion between the joint 29 and the hollow plate-shaped body 22 is fixed with a screw screw. Further, at the upper corner of the front surface of the hollow plate-shaped body 22, the surface thin plate is cut and the cut is bent to form an upper surface. The rear end portion of the upper surface is fitted into the joint 29 and fixed by the screw screw of the fixing member. The bottom plate, the back plate, the top plate, and the front plate are formed of a hollow plate-like body 22, and the main material of the front surface is a non-woven fabric of aramid fiber, which is formed inside the flameproof sheet 41 and the flameproof sheet 41. The hollow plate-shaped body 22 is provided with a plurality of through holes 13 for planting at the same location. Further, in the hollow plate-shaped body 22 of the bottom plate, strip-shaped through holes having a drainage function of excess water are formed in the front thin plate and the back thin plate of the hollow plate-shaped body 22. The water-retaining base material 6 whose main material is rock wool is filled in the region of the upper surface where the non-woven fabric to which activated carbon is adhered is laid on the upper surface of the hollow plate-shaped body 22. A planting through hole 13 having a diameter of 20 cm is opened on the upper surface, and the plant 95 is planted. In addition, plants 95 are planted in a plurality of planting through holes 13 provided on the front surface. In addition, a radiation transmission reducing constituent base material having a band-shaped through hole 11 of the ninth invention is provided below the cross-sectional view of this side surface.

This base material is a hollow plate-like body, and the back thin plate and the front thin plate are laminated via a plurality of plate-like body ribs, and the plate-like bodies are installed substantially in parallel to form a drainage channel. Excess water that falls from the bottom plate of the radiation transmission reduction wall structure provided on the upper surface can be received and passed to the destination of drainage. Further, the base plate for reducing radiation transmission and the bottom plate of the wall structure for reducing radiation transmission are fixed at a plurality of places by using bolts, washers, and nuts as fixing members. Further, in front of the radiation transmission reducing wall structure, a water-retaining base material 6 for planting and a concrete plate as a rim material are provided on the upper surface of the radiation transmission reducing constituent base material. It is preferable that the radiation transmission reducing wall structure is connected to the radiation transmission reducing constituent base material in this way because the static stability of the radiation transmission reducing wall structure having a low center of gravity is increased.
This self-standing radiation transmission reduction wall structure has a height of 130 cm, a width of 100 cm, a bottom depth width of 50 cm, and a top surface depth width of 25 cm. The load is 480 kg in the water content saturated state. Due to the fusion of the total load and the depth width and the base material constituting the present invention, for example, it is released from the radioactive material existing in the land behind the back surface of the radiation transmission reduction wall structure (indicated by the arrow). It is preferable because the dose to be applied can be sufficiently reduced to be transmitted to the front surface of the radiation transmission reduction wall structure. Water injection may be performed from the planting through hole 13. Further, rainfall is also preferable because water falls from the planting through hole 13 to the water retention base material 6 inside the radiation transmission reducing wall structure.

<84th Embodiment>
In the 84th embodiment, the plate material is a hollow plate-like body in at least a part of the region.
The hollow plate-like body is a radiation transmission reducing wall structure according to any one of the 80th to 83rd inventions, which comprises a plurality of ribs and a front thin plate and a back thin plate laminated via the plurality of ribs. ..
The radiation transmission reducing wall structure in which the hollow plate-shaped body 22 is configured in the inventions of the 80th to 83rd is shown in each figure. The hollow plate-shaped body 22 is the hollow plate-shaped body of the ninth and tenth inventions. That is, the hollow plate-shaped body 22 in which the back thin plate 3 and the front thin plate 2 are laminated via a plurality of plate-shaped body ribs 4 and the plate-shaped bodies are installed substantially in parallel to form a drainage channel 96. Is. Alternatively, the back thin plate and the front thin plate having a plurality of through holes are formed of a hollow plate-like body formed by laminating via a plurality of ribs, and the rib 4 is a plate-like body and has a plurality of. Plate-shaped bodies are installed substantially in parallel to form a drainage channel 96, and the through holes are band-shaped through holes 11, and a plurality of band-shaped through holes 11 are formed so as to intersect the plate-shaped bodies. It is a radiation transmission reduction constituent base material characterized by the above. Further, in the hollow plate-like body of the tenth invention, the back thin plate 3 and the two front thin plates having a plurality of through holes are formed into a large number of cylinders, cylinders, prisms, cones, and cones. It is composed of a hollow plate-like body laminated via either a rib shape or a ring-shaped rib, and a drainage channel 96 is formed between the front thin plate 2 and the back thin plate 3 and any of the ribs. It is a base material for reducing radiation transmission.
The materials constituting the hollow plate-like body, the constituent requirements, and the like are specified in relation to the first and second inventions. In general, polypropylene resin products completed by molding are translucent, but in the present invention, when a hollow plate-like body is molded from polypropylene resin which is a thermoplastic resin, dark blue, blue, green, black, gray, Although one of the brown and red pigments is added to the polypropylene resin, translucent or transparent molding having an insulating effect may be selected. Since it can be inferred that electromagnetic waves are suppressed by a polypropylene resin having insulation, it is preferable to select a resin plate made of a thermoplastic resin for the radiation transmission reducing wall structure. The above is an example of this embodiment and does not limit the material constituting the hollow plate-like body.

<85th Embodiment>
An embodiment of the 85th invention is a partial bottom region inside the container, a partial lower region of the skeleton base material installed inside the container, and a lower surface of the bottom plate material arranged so as to form the container. Hollow plate-like base material, metal base material, concrete base material, stone base material, resin base material, mineral group according to the eighth to tenth or 84th inventions in any part of the region or an external region beyond the region. Place one of the lumber and
The frame base material or bottom plate material arranged in the container is connected to any of the hollow plate-like base material, the metal base material, the concrete base material, the stone base material, the resin base material, and the mineral base material by a joining or fixing member. The radiation transmission reducing wall structure according to any one of the 80th to 84th inventions, which can also be provided. The upper figure (a) of FIG. 52 is a cross-sectional view showing an example of this embodiment.

According to this configuration, a hollow plate-shaped body 22 made of polypropylene resin whose front surface, bottom surface, and back surface forming a slope are made of a thermoplastic resin is used, and three corner hollow L-shaped joints 29 of the seventeenth invention are used. Is formed. The joint portion between the joint 29 and the hollow plate-shaped body 22 is fixed with a screw screw. Further, at the upper corner of the front surface of the hollow plate-shaped body 22, the surface thin plate is cut and the cut is bent to form an upper surface. The rear end portion of the upper surface is fitted into the joint 29 and fixed by the screw screw of the fixing member. The flameproof sheet 41 on the front surface is provided with a plurality of through holes 13 for planting. A through hole 13 for planting is opened in the hollow plate-shaped body 22 on the inner side surface at the same position as the through hole 13 for planting of the flameproof sheet 41, and is attached to the hollow plate-shaped body 22. Further, a water-repellent heat insulating material 42 is provided on the inner side surface of the hollow plate-shaped body 22 excluding the bottom surface and the upper surface. A plurality of through holes 13 and 12 for planting are provided in the water-repellent heat insulating material 42 made of plate-shaped rock wool shown on the slope in the figure. A resin plate, which is an aggregate 102, is assembled in a frame shape using bolts and nuts of the fixing member 16 in the inner region of the water-repellent heat insulating material 42. An example of this skeleton structure is shown in the perspective view of FIG. As shown in the frame structure of the perspective view, a rod-shaped reinforced concrete base material 107 having a width of 20 cm and a length of 20 m is wrapped around an aggregate 102 with a stainless wire rope and fastened with a wire clip to reduce radiation transmission. It is also preferable to lower the center of gravity of the wall structure. The reinforced concrete base material 107 may be provided for a long time from the bottom region range to the outer region of the skeleton structure. A box body 37 for storing the heavy object 109 is formed and provided on the upper surface of the hollow plate-shaped body 22, which is the bottom plate of the radiation transmission reducing wall structure, with a thickness of about 30 cm.

A resin container in which a liquid such as water is injected may be installed in the bottom region of the skeleton structure in place of the box body 37. Further, the inner region of the water-repellent heat insulating material 42 and the upper surface region of the box body 37 are filled with the water-retaining base material 6 whose main material is rock wool. Further, an irrigation tube is provided in a perforated tube in the upper part of the skeleton structure, and a plant 95 is planted in a plurality of planting through holes 13 having a diameter of 20 cm on the upper surface. In addition, plants 95 are planted in a plurality of planting through holes 13 provided on the front surface. Note that FIG. 3B is a perspective view showing the box body 37. The material forming the box body 37 is a hollow plate-shaped body 22 having a band-shaped through hole 11. The box 37 contains iron ore for increasing the low center of gravity ratio more than the 80th to 84th radiation transmission reducing wall structures. This self-standing radiation transmission reduction wall structure has a height of 130 cm, a width of 100 cm, a bottom depth width of 50 cm, and a top surface depth width of 25 cm. The load is 630 kg in the water content saturated state. Due to the total load, the load related to the depth width, and the base material constituting the present invention, for example, the dose emitted from the radioactive material existing in the land behind the back surface of the radiation transmission reduction wall structure is reduced in radiation transmission. It is preferable because it can sufficiently reduce the permeation to the front surface of the wall structure. Water injection may be performed from the planting through hole 13. Further, rainfall is also preferable because water falls from the planting through hole 13 to the water retention base material 6 inside the radiation transmission reducing wall structure. Although FIG. 52 shows an example of the configuration in which the plants are planted, the above-mentioned load of 630 kg is almost permanent when the through holes for planting are closed with a plate material or the like after the water-retaining substrate is impregnated with water. Is secured in. A structure having a low center of gravity as in the present invention is preferable for wind resistance, and theoretically, it is a load that does not collapse even in a strong wind with a wind speed of 40 m. preferable.

FIG. 53 is a perspective view showing an example of an embodiment related to the 85th invention.
According to this configuration, the upper surface is formed to be curved as shown in FIG. This is an example of a structure that reduces the wind pressure on the radiation transmission reduction wall structure. Further, as shown in the figure, if the bottom surface of the front surface is widened forward, the center of gravity becomes lower, which is preferable as a measure against wind pressure. Further, the figure (b) below is an example of a form in which the iron plate 103 is installed and the bottom surface of the radiation transmission reducing wall structure and the iron plate are fixed. A plate material such as a resin plate, a wooden plywood, or a rubber plate may be provided in place of the iron plate 103. Further, the figures shown in A to K show side cross sections of a radiation transmission reducing wall structure preferably constructed with a height of 1 m to 2 m and a bottom width of 1 m to 2 m. A radiation transmission reducing wall structure having such a shape is preferable because it can withstand strong wind pressure. There is no limit to the height, but it is desirable that the height be designed with wind pressure countermeasures in mind.

FIG. 54 is a perspective view showing an example of an embodiment related to the 85th invention.
A protrusion structure integrated with the structure is configured below the front surface of the radiation transmission reduction wall structure shown in the perspective view. A through hole 13 for planting a plant is opened in the structure in front of the structure, and the plant 95 is planted. Further, a concrete hollow plate 21 is fixed to the frame of the radiation transmission reduction wall structure under the bottom surface of the radiation transmission reduction wall structure with bolts, nuts, and wire ropes of fixing members. In addition, the skeleton for connecting another radiation transmission reduction wall structure is shown on the side. Further, in the figure (b) below, the planting surface is formed on the upper surface, the front surface, the upper surface of the protruding structure, and the side surface, and the notch 36 and the planting through hole 13 are covered on the surface of the structure. It is a perspective view which showed that the plant was planted in the glass fiber woven fabric. In addition, you may choose to plant a plant by opening either a notch 36 or a through hole 13 on the back surface.

<86th embodiment>
According to an embodiment of the 86th invention, any one of the 80th to 85th inventions, wherein at least two of the radiation transmission reduction wall structures are connected to the side surface of the same other radiation transmission reduction wall structure. It is a radiation transmission reduction wall structure.
The upper figure (a) of FIG. 54 is a perspective view showing an example of this embodiment.
The radiation transmission reduction wall structure can be constructed as one structure that is long in the lateral direction and can be installed in a place where radiation shielding is desired. However, the width of the radiation transmission reduction wall structure is manufactured to be, for example, 3 m. Multiple units can be connected and installed at locations where radiation shielding is desired. In order to connect a plurality of units, the side surface of each radiation transmission reduction wall structure may be applied to form a horizontally long wall. Further, a method may be used in which the frame and the frame of the adjacent radiation transmission reducing wall structure are fixedly connected by using bolts, nuts, wire ropes or the like of the fixing member. Further, it is also possible to use an I-shaped joint made of aluminum to fit a plate material constituting on the side surface and fix it with a fixing member such as a screw screw. Further, a method of fixing the plate material constituting on the side surface by using a perforated metal plate, a bolt, a nut or the like as a fixing member may also be used. Further, the standard and design of the radiation transmission reduction wall structure to be connected may be arbitrarily designed. In addition, you may choose to carry the constituent members of the radiation transmission reduction wall structure to a place where radiation shielding is desired, assemble them, and install them in the wall structure. In addition, water is injected from the through hole formed in the completed radiation transmission reduction wall structure, and the water retention base material becomes water saturated, so that the radiation transmission reduction wall structure becomes a stable load and radiation transmission. It is also useful for reduction.

<Other embodiments>
In FIG. 14, the left and right surfaces of the water-retaining base material 6 are sandwiched between the water-retaining plates 19, and the net 20 is laminated on the surface of the water-retaining plate 19, and the water-retaining base material 6, the water-impervious plate 19, and the net 20 are formed by the fixing member 16. It is a perspective view which showed the structure which is fixed and integrated.
When this structure is used as a wall, the water content of the water-retaining substrate 6 can reduce the transmission of radiation, and it is useful for attaching to the greening structure of the wall surface to grow vines. be.

The upper view (b) of FIG. 15 is a view showing a partial cross section of the structure of the lower right figure (a), and the bolt of the fixing member 16 is attached to the net 20 and the impermeable plate 19 shown on the right side. It shows a state in which the nut of the fixing member 16 is tightened by inserting the fixing member 16 into a hole provided as a through hole, penetrating the impermeable plate 19 on the left side and the net 20. In addition, nuts for preventing external pressure from being applied to the water-retaining base material 6 located inside the left and right impermeable plates 19 are provided on the inner side surfaces of both impermeable plates 19.
Further, as shown in the perspective view in the figure (a) below, this structure is a hollow structure in which a back thin plate and a front thin plate having a large number of through holes are laminated via a plurality of plate-shaped ribs. The plate-shaped body is a water-impervious plate 19. Then, the left and right surfaces of the water-retaining base material 6 are sandwiched by the water-impervious plate 21, the net 20 is laminated on the surface of the water-impervious plate 19, and the water-retaining base material 6, the impermeable plate 19, and the net 20 are laminated by the fixing member 16. Is fixed and integrated.
It is preferable to make the impermeable plate into a hollow plate shape because it has a heat insulating effect and increases the strength of this structure. Then, it is possible to reduce the heat load on the water content of the water-retaining base material 6 and suppress the increase in heat of the structure. That is, it is preferable for the growing environment of plants because it suppresses dry evaporation and high heat of water content. In addition, the heat insulating effect improves the water retention of the water-retaining base material 6, which is also preferable in that it leads to stable reduction of radiation transmission.

In FIG. 17, a hollow plate-like body 1 filled with a water-retaining base material 6 sandwiched between a front thin plate 2 and a back thin plate 3 is provided on the upper surface of a ground 49 contaminated with a radioactive substance in the lowermost layer, and is provided on the upper surface thereof. A hollow underdrain plate 22 having a plurality of band-shaped through holes 11 (corresponding to a specific example of the configuration of the ninth invention) is laminated on the surface thin plate 2, an activated carbon-adhered water permeable sheet 17 is laminated on the upper surface thereof, and further, an activated carbon-adhered water permeable sheet 17 is laminated on the upper surface thereof. A structure in which soil 33 is created and turfgrass 57 is planted on the uppermost surface is shown. This cross-sectional view shows how the rainfall 92 permeates the activated carbon-attached water-permeable sheet 17 and falls on the hollow underdrain plate 22 so as to reach the soil from the lawn surface.
According to this configuration, the radiation shielding rate is stable due to the water-containing material filled in the water-retaining base material 6 and the weight (mass) of the water-retaining base material 6 and the hollow plate-like body 1. For example, if the thickness of the hollow plate-like body 1 is 10 cm, the combined weight of the water-containing and water-retaining base material 6 is 100 to 130 kg / m ² , and at this weight, the radiation shielding rate is approximately 50%. Is presumed. This weight can be permanently retained without being affected by the surrounding environment. Further, many mineral fibers having excellent water retention are laminated on the soil laminated on the upper surface, and although it depends on the thickness of the soil, for example, if it is 10 cm, it will be about 140 kg in the soil water content saturated state.

That is, the total weight of the hollow plate-like body 1 in the lower layer and the weight of the soil is 240 to 270 kg / m ^2, and the structure of this load (mass) load is the ground contaminated with the radioactive substance. Since it is provided on the upper surface, it is possible to shield radiation by about 75%, but the soil weight is not always constant because the plant consumes the water content of the soil. Therefore, the minimum load (mass) load of this soil weight is a fixed load of only the soil and the underdrain plate when the water content is set to 0. Therefore, if the above-mentioned soil weight is 50 kg, the hollow plate-like body 1 The load obtained by adding the soil weight of 50 kg to the weight of 100 to 130 kg is the fixed load according to this configuration. That is, 150 to 180 kg is a fixed load. At this load, it is estimated that the radiation shielding rate will be approximately 60%. However, this numerical value is a numerical value based on the soil water content 0, and it is more appropriate to obtain the radiation shielding rate estimated to add the water content weight to this numerical value. As described above, this configuration is useful for radiation shielding.
In this configuration, the activated carbon-adhered water-permeable sheet 17 is laminated, and since this activated carbon is an ultrafine-grained activated carbon having a particle size of 990 μm or less, the effect of adsorbing radioactive substances can be sufficiently expected, and also. Zeolites, which are both a desiccant of a porous body and a fertilizer, may be mixed with the soil. It is expected that the activated carbon and the desiccant will have the effect that the radioactive material released from the ground of the lowermost layer contaminated with the radioactive material is adsorbed when it passes through the hollow plate-like body 1 and the hollow underdrain plate 22. ..

FIG. 18 shows a hollow plate-like body in which a hollow plate-like body 1 corresponding to a specific example of the configuration of the third invention is provided on the upper surface of the ground 49 contaminated with a radioactive substance in the lowermost layer, and the water-retaining base material 6 is filled. Activated carbon-attached water-permeable sheet 17 was laminated on the upper surface of the surface thin plate having the band-shaped through hole 11 formed in the body 1, soil 33 containing a large amount of mineral fibers was created on the upper surface thereof, and turfgrass 57 was planted on the uppermost surface. Shows the structure. In this cross-sectional view, water is permeated through the ultrafine activated carbon-adhered water permeable sheet 17 having a particle size of 990 μm or less so that the rainfall 92 reaches from the lawn surface to the soil, and the water falls into the hollow plate-like body 1. It is shown that the excess water 58 is drained from the unclosed portion of the partially closed end portion of the above, and the hollow culvert plate 22 is flooded. A rim material 55 is installed on the side surface of the soil 33. In this configuration, the effect of reducing the transmission of radiation emitted from the ground contaminated with radioactive substances can be obtained, and wastewater treatment in the event of heavy rain can be facilitated. It is useful for reconstruction and greening. It is also useful because it enables crop production in agricultural land in areas contaminated with radioactive substances.

In the configuration shown in the cross-sectional view of FIG. 19, a hollow plate-like body 1 corresponding to a specific example of the configuration of the third invention is provided on the upper surface of the ground 49 contaminated with the radioactive substance in the lowermost layer. A plurality of band-shaped through holes 11 are formed in the surface thin plate 2 of the hollow plate-like body 1. On the upper surface thereof, a hollow underdrain plate 22 having a back thin plate 3 having a plurality of strip-shaped through holes 11 and a front thin plate 2 having a plurality of strip-shaped through holes 11 is laminated. An ultrafine activated carbon-adhered water-permeable sheet 17 having a particle size of 990 μm or less is laminated on the upper surface of the hollow underdrain plate 22. Soil 33 containing a large amount of mineral fibers is formed on the upper surface thereof. The turf grass 57 is planted in the soil 33. The rainfall 92 permeates the ultrafine activated carbon-adhered water permeable sheet 17 having a particle size of 990 μm or less so as to reach the soil from the lawn surface, and falls into the hollow underdrain plate 22 and the hollow plate-like body 1 laminated in two layers. Then, the hollow plate-like body 1 is impregnated with excess water from the soil 33. The hollow culvert plate 22 laminated in the two layers constitutes a hollow culvert plate corresponding to a specific example of the configuration of the fourteenth invention, and all peripheral ends of the hollow culvert plate 22 are closed. It is a structure. Therefore, water such as rainfall 92 permeates the soil 33, and surplus water that the soil 33 cannot retain is stored in the hollow culvert plate 22 existing in the lower layer. When the hollow culvert plate 22 becomes saturated with water storage, it is drained as excess water from the strip-shaped through hole 11 formed in the surface thin plate 2 to the outside of the hollow culvert plate 22 beyond the ribs of the hollow culvert plate 22. However, the amount of water once stored in the hollow underdrain plate 22 is retained.

Further, the amount of water stored in the hollow culvert plate 22 can be calculated from the hollow volume of the hollow culvert plate 22. That is, if the size of the hollow underdrain plate 22 is, for example, the thickness of the rib 4 excluding the thickness of the front thin plate 2 and the back thin plate 3 is 10 cm and the width is 1 m square, the hollow underdrain plate is 0.1 m ³ Water can be retained. That is, since the weight of this water is 100 kg / m ² , the radiation transmission can be reduced to about 50%. According to this configuration, since the hollow underdrain plate 2 is stacked in two layers, the radiation transmission can be reduced to about 25%. When the soil water content weight is added to the water retention weight retained in the hollow culvert plate, it is fully conceivable that the radiation transmission will be 20% or less. This configuration, which enables plant cultivation and reduction of radiation transmission, is useful for reconstruction and greening of areas contaminated with radioactive materials. In addition, in consideration of the selection of plant species in which the roots that have grown do not reach the hollow underdrain plate 22 and the thickness and water content of the soil 33, plants other than turfgrass that consume relatively little water are selected for the soil 33. It is also preferable to plant. Of course, it is also useful for agricultural land in areas contaminated with radioactive substances.

FIG. 20 is a diagram showing an example of a configuration in which the radiation emission of a decontaminated product contaminated with a radioactive substance is reduced and at the same time, a green area is formed.
As shown in the cross-sectional view of the above figure (a), in this configuration, the hollow plate-like body 1 is provided on the lowermost layer, and the hollow underdrain plate 22 is provided on the upper surface thereof. Radiation emission waste 59 (plurality of bags) is piled up in the region inside from the peripheral edge of the plane of the hollow underdrain plate 22. A hollow plate-like body 1 is provided on the upper surface of the radiation-emitting waste 59 placed in a pile, and the hollow underdrain plate 22 is laminated on the upper surface thereof. Further, an ultrafine activated carbon-adhered water-permeable sheet 17 having a particle size of 990 μm or less is laid on the upper surface of the hollow underdrain plate 22. On the upper surface thereof, soil 33 containing a large amount of rock wool made from blast furnace slag is created. Seeds of turf grass 57 are sown on the created soil 33 to make it a lawn state. Alternatively, plants other than the turfgrass 57 are planted in the soil 33 to complete the green space. By greening the upper surface of the radiation-emitting waste, the radiation emission can be reduced or completely shielded, and the radiation-emitting waste can be prevented from being exposed to the general public. That is, the storage location can be returned to a safe natural environment. In order to prevent the surface of the green space from being adversely affected by the radiation-emitting waste 59, the upper surface of the radiation-emitting waste should be greened in consideration of the weight of the soil 33 and the weight of the hollow plate-like body 1 having a water-containing function. It is good to carry out.

In the configuration of this figure, the weight of the base material on the upper surface of the radiation-emitting waste is designed to be 250 kg to 300 kg per square meter. It is estimated that this load shields the dose from radiation-emitting waste by approximately 90%. In addition, since the soil contains a large amount of rock wool fiber in this green area, the soil is integrated to suppress the occurrence of separation phenomenon, and the soil is prevented from collapsing and drainage is good. Further, since the lower layer is provided with a hollow underdrain plate 22 that is not destroyed by the load of a large vehicle, it can withstand the load of soil that becomes heavy due to water content, and excess water is also drained from the drainage channel. Compared to the embankment green space, which has a large slope angle only for general soil dressing, the surface of the green space is rarely collapsed or washed away by heavy rain, so the composition of this green space is useful.
Further, FIG. (A) is a cross-sectional view showing a state in which radiation-emitting waste is piled up, but this configuration is also useful in a storage place where radiation-emitting waste is not piled up. Further, in this green space configuration, it is also preferable to provide the hollow plate-like body 1 of the lowermost layer on the upper surface of the ground or the like contaminated with radioactive substances.

The intermediate figure (b) is a cross-sectional view showing a form related to the above figure (a). In this configuration, the hollow underdrain plate 22 is connected to the through hole of the drainage pipe 23 in which at least one band-shaped through hole is formed, and is installed on the upper surface of the soil 33. Radiation emission waste 59 (plurality of bags) is piled up in a region from the peripheral edge to the inner side of the upper surface of the installed hollow underdrain plate 22. A hollow plate-like body 1 is provided on the upper surface of the radiation-emitting waste 59 placed in a pile, and the hollow underdrain plate 22 is laminated on the upper surface thereof. Further, an ultrafine activated carbon-adhered water-permeable sheet 17 having a particle size of 990 μm or less is laid on the upper surface of the hollow underdrain plate 22. Soil 33 containing a large amount of mineral fibers is created on the upper surface thereof. Seeds of turf grass 57 are sown on the created soil 33 to make it a lawn state, or plants other than turf grass 57 are planted in the soil to complete the greening. Since the band-shaped through-hole forming drainage pipe 23 is provided in this configuration, drainage of rainwater or the like from the green ground to the lower soil 33 and further from the hollow underdrain plate 22 to the band-shaped through-hole forming drainage pipe 23 becomes smoother. , It is preferable because the water flow guidance of the drainage is passed to the drainage pipe connected to the band-shaped through hole forming drainage pipe 23.

The lower figure (c) is a cross-sectional view showing the morphology related to the upper figure (a) and the intermediate figure (b). In this configuration, the hollow underdrain plate 22 is connected to the through hole of the drainage pipe 23 in which at least one band-shaped through hole is formed, and is installed on the upper surface of the radioactive material contaminated ground 48. Radiation emission waste 59 (plurality of bags) is piled up in a region from the peripheral edge to the inner side of the upper surface of the installed hollow underdrain plate 22. A hollow plate-like body 1 is provided on the upper surface of the radiation-emitting waste 59 placed in a pile, and the hollow underdrain plate 22 is laminated on the upper surface thereof. Further, an ultrafine activated carbon-adhered water-permeable sheet 17 having a particle size of 990 μm or less is laid on the upper surface of the hollow underdrain plate 22. Soil 33 containing a large amount of mineral fibers is created on the upper surface thereof. The soil 33 created is sown with turf grass seeds to make it into a lawn state, or plants other than turf grass are planted in the soil to complete the greening. This configuration makes it possible to green the upper surface of the radioactive material-contaminated ground 48 and further reduce the transmission of radiation emitted from the ground and waste, and also to fix the radioactive material contained in the land.

The upper figure (a) of FIG. 21 is a perspective view showing an example of the configuration of the 21st invention. Reference numeral 17 is a polyester spunbonded non-woven fabric (grain size 40 g / m2) having a width of 45 cm and a length of 158 cm, and the other is ultrafine activated carbon having a particle size of 990 μm or less attached to the polyester spunbonded non-woven fabric. It is a polyester spunbonded non-woven fabric (grain size 80 g / m2). The two non-woven fabrics 17 and 17 are heat-welded so that the size of the grid 99 is 60 mm in length and 36 mm in width. The number of lattices is 230, and 20 g of zeolite having a particle size of 990 μm or less is enclosed in each lattice.
A polymer water-absorbent resin and ultrafine-grained activated carbon having a particle size of 990 μm or less may be mixed with the zeolite in this lattice, or the zeolite may be replaced with a polymer water-absorbent resin and ultrafine-grained activated carbon having a particle size of 990 μm or less. good.

Further, the middle figure (b) is also a top view showing an example of the configuration of the 40th invention. The hexagonal grid 99 on the upper surface is a biodegradable sheet 87 having a width of 200 cm and a length of 200 cm. A plant seed 34 is cold-welded together with the biodegradable sheet 87 and the oblate sheet 88 between the sheet 87 and the oblate sheet 88 on the back surface. On the lower surface, there is a sheet 17 to which ultrafine activated carbon having a particle size of 990 μm or less is attached. The non-woven fabric 17 and the sheets 87 and 88 are heat-welded so that the size of the grid 99 is 300 mm in length and 300 mm in width. As shown in the cross-sectional view of FIG. It is enclosed.
The number of lattices in which the biodegradable sheet 87 having the seeds 34, the oblate sheet 88 and the non-woven fabric 17 are bonded is 36. The weight of this constituent sheet is 29 kg in the dry state and ^{54 kg / m 2 in the water content saturated state.} The weight in this dry state has no problem in workability. Further, this sheet can be cut into a plurality of sheets and used.
This sheet steadily germinates plant seeds by constructing a water-retaining base material that has both a shielding effect of radioactive substances existing in forests and slopes of highways, a water-containing material useful for fixing, and a porous material. It is preferable because it can be grown.
Further, the biodegradable sheet 87 and the oblate sheet 88 have a high decomposition rate by microorganisms and are dissolved in water and converted into soil, so that they do not adversely affect the environment.

The configuration of FIG. 22 is related to FIG. As shown in the cross-sectional view of the above figure (a), in this configuration, ^{a non-woven fabric sheet 28 having a resin fiber amount of 12 to 20 g / m 2} was placed on the upper surface, and ultrafine activated carbon having a particle size of 990 μm or less was attached. Sheet 17 is at the bottom. The non-woven fabric sheet 28 and the bottom sheet 17 are sewn at the joint portion 29 to form the bag body 32. Soil 33 containing humus as a main material is filled from the lower layer inside the bag 32, a water-retaining base material 6 made of rock wool as a main material is laminated on the upper surface thereof, and humus is used as a main material on the upper surface thereof. The soil 33 is laminated, and a sheet 17 to which ultrafine activated carbon having a particle size of 990 μm or less is attached is further laminated on the upper surface thereof. On the upper surface of the sheet 17, seeds 34 of a plurality of plants are placed in places.
The bag body 32 has a width of 70 cm, a width of 55 cm, and a thickness of 25 cm, and its weight is 21 kg in a dry state. Then, when water is poured into the non-woven fabric sheet 17 on the upper surface of the bag, the water-retaining base material 6 and the soil 33 contain water. The weight of the water-containing bag is 120 kg in the saturated state of water. By placing this bag on the ground of green spaces or forests contaminated with radioactive substances or on the upper surface of fallen leaves, it is estimated that the radiation shielding rate can be suppressed to 50%, and the seeds of the bag will flourish. , It is also preferable because it restores green.

Further, in the configuration example shown in the perspective view of the middle view (b), the notch 36 is formed by a cutting tool such as a cutter knife on the non-woven fabric sheet 28 on the upper surface of the bag body 32 in the above figure (a). In the figure, the notched portion of the nonwoven fabric sheet 28 and the joint portion 29 sewn with a sewing machine or the like are shown so as to be visible. When a plant sapling is planted in this notch 36, the seeds placed in the bag 32 grow to become a grassland, and trees can be grown together in the grassland. Therefore, this configuration is suitable for the restoration of diverse green spaces.
When the seedlings planted in the bag 32 grow, the roots penetrate the activated carbon adhering sheet on the lower surface of the bag 32 and extend to the lower layer of the ground, and the above-ground part grows with the extension of the roots.
The structure of the bag 32 is characterized by being thick, and since there is sufficient ventilation and drainage from the peripheral side wall having the thickness, root rot due to a large amount of water content does not occur.

Also, in addition to the soil elements, carbon, oxygen, and nutrients in which plant roots grow, mineral fiber soils are not affected by microbial degradation and retain moisture for many years, so they can be used in greens and forests contaminated with radioactive substances. It is preferable to place the bag 32 on the upper surface of the deciduous surface.
The planting bag 32 having this configuration can also be used on the slope of a road that is not contaminated with radioactive substances, the ground of green areas and forests, and the upper surface of deciduous surfaces.
Further, the lower figure (c) is a perspective view of a configuration in which the bag body 32 in the upper figure (a) and the middle figure (b) is replaced with a packaging body 35 to form a planting hole 13. The package 35 is packaged in a non-woven fabric sheet having a resin fiber amount of 12 to 20 g / m ^2. The closed portion of the package 35 may be closed with a well-known adhesive, double-sided tape, single-sided tape, or the like. The package base material having this configuration is preferable because it can be inexpensive.

(A) and (b) shown in FIG. 23 are cross-sectional views showing an example of the bag body 32 related to FIG. 22. A plant seed 34 is placed between the non-woven fabric sheet 28, which is the material of the bag, and the soil 33. The layer below the soil is laminated with a water-retaining base material 6. The water-retaining base material is granular cotton 101 of rock wool fibers, the thickness of which is 15 cm. The non-woven fabric sheet 28 of the bag body is shown in the lower layer of the water-retaining base material.
In the figure shown in (b), a plant seed 34 is sandwiched between two non-woven fabric sheets 28, which are the materials of the bag. Then, through holes 13 for planting plant seedlings are provided in the two non-woven fabric sheets. Underneath it is a layer of soil that is useful for plant seeds to germinate. The layer below the soil layer is laminated with a water-retaining base material 6 that stores a large amount of rainfall. The water-retaining base material is granular cotton 101 made of rock wool fiber, and its thickness is 20 cm. The non-woven fabric sheet 28 of the bag body is shown in the lower layer of the water-retaining base material. This bag has a width of 50 cm, a width of 50 cm, a dry weight of 18 kg, and a water content of about 90 liters.

That is, the weight of this bag is 118 kg (water content saturation). This weight is useful because it is estimated that the radiation shielding rate is suppressed to 50%. Further, since the non-woven fabric sheet 28 as the upper surface layer has two layers, the water-containing evaporation amount of the water-retaining base material is also suppressed, which is preferable. It should be noted that this bag body is preferable because it can be widely provided because it can realize cost reduction. In addition, the characteristics of this composition are useful for the restoration of "green" because the seeds and seedlings of plants can be overgrown. Further, a fine-grained zeolite-adhered kneaded paper sheet having a particle size of 990 μm or less is laid on a place where the bag 32 is placed in a place contaminated with a radioactive substance. It is preferable to select a method of laying or sowing any of ultrafine activated carbon and zeolite having a particle size of 990 μm or less, or ultrafine activated carbon and zeolite having a particle size of 990 μm or less. By this method, it can be predicted that activated carbon and zeolite will adsorb radioactive substances, and that the adsorbed radioactive substances will be prevented from being scattered or washed away by water due to the water content of the bag, and a radiation shielding effect can be obtained. It is useful because it can be done. Further, if the method of placing the underdrain plate of the ninth invention in the place where the above-mentioned activated carbon and zeolite are sown and arranging the bag bodies 32 side by side on the upper surface thereof, the fixing effect of the radioactive substance and the shielding effect of radiation are further enhanced. preferable. Further, the underdrain plate or the plate body of the ninth invention made of a thermoplastic resin having a thickness of 1 mm to 15 mm between the water-retaining base material 6 and the non-woven fabric sheet 28 was contaminated with a radioactive substance. Placing it on land is also useful as another embodiment.

In the configuration shown in the top perspective view of FIG. 24, the joint portion 29 of the peripheral portion of the resin fiber woven fabric 68 whose surface is woven in an uneven shape and has water permeability is closed and welded 18 to form the bag body 32. A water injection port 25 is provided in a part of the 18 closed welding points on the peripheral portion, and a lid 8 for closing the water injection port is provided after water injection. The inside of the bag 32 is filled with rock wool fiber made from blast furnace slag as a water-retaining base material. Rock wool is generally offered on the market for use as a heat insulating material, and has a structure in which at least 95% of air, which is essential for heat insulation, is present in the volume of rock wool. That is, when water is poured into rock wool, the voids are contained with water. Therefore, for example, 1 m ³ of rock wool contains approximately 1 ton of water. Further, the fiber woven fabric of the bag body 32 is a woven fabric made of polyethylene, and its shape is woven with an uneven surface. When seeds of plants mixed with soil or sand are sown in this uneven shape, or when seeds and stabilizers, curing materials, and fertilizers are mixed with soil dressing and sprayed, the seeds become uneven and difficult to move. That is, the seeds are less likely to be washed away by precipitation, and the seeds can easily utilize the water contained in the water-retaining base material filled inside through the gaps between the fibers of the bag 32, so that the seeds can germinate. Preferably, the bag 32 is useful for greening. Further, since a large amount of rainfall can be expected to permeate the inside of the bag 32 due to the unevenness, this uneven woven fabric is preferable for collecting water for rainfall or sprinkling.

When the bag body 32 increases in weight due to water injection or precipitation, the load can reduce the transmission of radiation. The bag body 32 has an average thickness of 10 cm, a width of 60 cm, and a width of 150 cm, and weighs about 120 kg in a water-containing saturated state. At this weight, it is estimated that the transmittance of radiation is about 50%, but in order to further reduce the transmittance, it is desirable to use a plurality of bags in layers. This example is an example of a form for the purpose of shielding radioactivity and restoring greening, and if it is used only for shielding radioactivity, another water-retaining base material that replaces rock wool, which is good for plant growth, is used as a bag. It is also possible to fill the inside of 32.
Further, in the cross-sectional view (b) in the middle stage and the cross-sectional perspective view (c) in the lower stage, the water-retaining base material layer 6 is laminated from the lower layer inside the bag body 32, and the soil layer 33 is laminated on the upper surface layer thereof. The composition which put the plant seed 34 between 33 and the back of the top fabric 68 is shown. In the case of this configuration example, since the seed 34 is inside the bag body 32, it is not necessary to sow the seed at the site of use. It is preferable because it does not require the work of sowing seeds.

In the configuration shown in FIG. 25, the drainage pipe 23 is buried in a part of the contaminated soil 93, and a band-shaped through hole is opened on the upper surface of the drainage pipe 23. The bent end is inserted by cutting the front thin plate and the rib, leaving the back thin plate. The left and right hollow culvert plates 22 are connected to the drainage pipe 23, and the hollow plate 21 is provided at a position on the upper surface where the excess water of the rainfall 92 falls from the drainage channel 43 to the drainage pipe 23. A water-permeable sheet 17 to which activated carbon is attached is laid on the upper surface of the hollow plate 21 and the upper surfaces of the left and right hollow underdrain plates 22, soil 33 is created on the upper surface of the sheet, and the plant 95 is planted. There is. Further, a water permeable sheet 17 to which activated carbon is attached is attached to the outer surface of the drain pipe 23 for the purpose of preventing radioactive substances from entering the inside of the drain pipe 23. The above figure (a) is a cross-sectional view of this configuration.

According to this configuration, since the hollow underdrain plate 22 is buried in a plane shape, even if there is rainfall such as guerrilla rainstorm that concentrates in a short time, water does not stay on the soil surface having water retention. , Smoothly drain excess water from the soil. Therefore, this configuration is also useful for urban infrastructure development because it can prevent the phenomenon of water pooling on the ground surface.
Further, it is possible to reduce the transmission of radiation emitted from the soil having water retention and the soil contaminated with the radioactive substance on the lower surface of the hollow culvert plate 22 to the ground surface due to the load of the hollow culvert plate 22. , More useful. The figure below (b) is a perspective view showing a state in which the hollow underdrain plate 22 to which the water-permeable sheet 17 to which the activated carbon is attached is attached to the surface is vertically inserted into the drainage pipe.

According to this configuration, radioactive substances floating in the air, radioactive substances adhering to rainfall and other pollutants can be adsorbed. Further, it is useful because the radiation of the radioactive substance can be reduced from being transmitted to the back surface of the hollow underdrain plate 22 by the adsorption effect. Further, in this configuration, the band-shaped through hole 11 is formed, and the water-permeable sheet 17 to which the activated carbon is attached is attached to the hollow underdrain plate 22 provided on the upper surface of the hollow underdrain plate 22 in places of the involuntary or flame-retardant sheet 17. A notch is provided laterally or diagonally, leaving a region below the notch to fill the soil, and the sheet 17 is placed on the upper surface of the hollow underdrain plate 22 using a fixing member. When the plant is planted by being bonded and filling the notch with soil, the plant grows due to the drainage effect and ventilation effect of the hollow underdrain plate 22, and the adsorption effect of the gas released from the root by activated carbon. Therefore, it is useful including the effect of adsorbing pollutants described above. In this configuration for planting a plant, it is more preferable to attach the water-permeable sheet 17 to which the activated carbon is attached to the back surface where the band-shaped through hole 11 is not formed.

FIG. 26 is a perspective view showing a configuration example in which the irrigation pipe 15 is provided between the front thin plate 2 and the back thin plate 3 on the upper surface of the hollow underdrain plate 22 on the drawing. In this figure, the form before the lid 8 covering the upper part of the irrigation pipe 15 is provided on the upper part of the front thin plate 2 and the back thin plate 3 is shown. This configuration is designed so that the water discharged from the irrigation pipe 15 does not leak to the outside. Further, the water discharged from the irrigation pipe 15 passes through each of the band-shaped through holes 11 formed in the hollow culvert plate 22 at regular intervals, and falls so as to cover the surface of the hollow culvert plate 22. do. This configuration in which water is distributed over the surface and falls is prepared in case the amount of water contained in the water-retaining base material is reduced, and is also for facilitating water injection into the water-retaining base material. It is useful. In the wall structure greening having this structure, it is useful because it can supplement the water consumed by the plants when rainfall cannot be expected.

In the configuration shown in the cross-sectional view of FIG. 27, a water-containing hollow plate 1 having no through hole is provided on the back surface thereof, and a hollow underdrain plate 22, an activated carbon adhesion sheet 17, soil 33, and a water-repellent heat insulating material are provided on the front side surface thereof. Forty-two rock wool plates are provided on each side surface. A non-combustible material 41 is provided on the front surface of the rock wool plate-shaped body in which a through hole 12 for planting a plant is opened at the same position as the through hole 12 of the rock wool plate-shaped body. Further, in order to fix the base material of each layer, a bolt, which is a fixing member 16, is communicated with a water-containing hollow plate-like body 1 on the back surface from a non-combustible material 41 arranged on the front surface, and a washer and a nut are used, respectively. Attach to the place of.
A hollow plate 21 is provided between the activated carbon adhering sheet 17 and the water-repellent heat insulating material 42, and a bolt of a fixing member is passed through the hollow of the hollow plate 21 to fix the base material of each layer using a washer and a nut. Has been done.
With this configuration, the green body of the wall structure can reduce the transmission of radiation due to the water content of the water-containing hollow body 1, the weight of the hollow culvert plate 22, and the weight of the soil containing water. In addition, since the activated carbon adhesion sheet 17 is provided, it is also useful for shielding radioactive substances. In addition, activated carbon is mixed in the soil. Further, since the color pigment is added to the hollow underdrain plate 22 and the water-containing hollow plate-like body 1, it is useful because the shielding effect of radioactive substances can be expected.

FIG. 28 is a cross-sectional view of the configuration in which the hollow underdrain plate 22 shown in FIG. 27 is omitted.
A base material having a band-shaped through hole 11 is selected on the soil side surface of the water-containing hollow plate-like body 1 shown in this configuration. Therefore, this structure is preferable because it constitutes a soil structure that requires drainage and air permeability, which are indispensable for the growth of plants.

FIG. 29 is a perspective view showing the portion (a) shown in FIG. 27 in an exploded manner. As described in this partial view in relation to FIG. 27, a plurality of through holes 12 for planting plants are opened in the noncombustible material 41 placed on the front surface. In this example, five through holes for planting are provided, but the number is not limited to this. Further, although the fixing members 16 are provided at four places, the number and positions thereof may be arbitrary. The heat insulating material 42 placed on the back surface also has a through hole 12 for planting at the same position as the front surface. A soil 33 is arranged on the back surface thereof, an activated carbon adhesion sheet 17 is provided on the back surface thereof, and a hollow underdrain plate 22 having a band-shaped through hole 11 and a hollow plate-like body for water content 1 are arranged on the back surface thereof. .. As a form different from that of FIG. 27, it is also possible to implement a form of a greening structure in which a material such as resin, metal, or wood is selected and fitted into an outer frame, and integrated by using a fixture. ..
In the configuration shown in the perspective view of the lower figure (b), a metal preferable for the growth of vines is provided in the through hole 12 opened for planting in the noncombustible material 41 provided on the front surface in the configuration of the upper figure (a). The three-dimensional linear pedestal 44, which is a three-dimensional rod, is fixed by the screw screw of the fixing member 16, and the pedestal 45 capable of filling soil is fixed by the fixing member 16 diagonally below the pedestal 44. According to this configuration, by arranging these two types of pedestals in front of the wall structure, it is possible to plant plants having different vegetation forms, such as climbing plants and trees. In addition, it is possible to plant flowers on the same surface as climbing plants and trees, which is preferable in terms of the diversity of green walls.

The configuration shown in the cross-sectional view of FIG. 30 is a wall greening structure formed by vertically integrating the structure (a) and the box-shaped structure (b) shown in FIG. 27. This configuration corresponds to a specific example of the configuration of the eighteenth invention, and is configured on the box-shaped side wall (hollow culvert plate 22) of the box-shaped structure (b) and the back surface of the upper structure (a). The water-containing hollow plate 1, the hollow underdrain plate 22, and the hollow plate 21 are joined by bolts, nuts, and washers of the fixing member 16. Then, a metal pile 46 having rust prevention and is driven into the ground is joined and fixed by bolts of the fixing member 16 to the hollow underdrain plate 22 on the front surface and the back surface of the box-shaped body (b). The box-shaped body (b) is filled with soil 33.
In the wall structure greening body of this configuration, it is useful because the radiation emitted from the land where the back side of the wall is contaminated with radioactive substances can be reduced from penetrating to the front area of the wall. Further, by integrating the soil 33 having this configuration with the load of the box-shaped body (b) filled and the pile 46, it is possible to prevent the upper wall greening structure (a) from collapsing due to wind or the like. Therefore, it is preferable in terms of ensuring safety. In addition, middle trees and trees can be planted in the box-shaped body (b), which is suitable as a green wall.

In the configuration shown in the cross-sectional view of FIG. 31, the wall structure greening body is installed by using the wire rope 51 shown in the constituent material of FIG. 43. According to this installation method, the wire rope 51 is passed through the front and back thin plates of the hollow plate 21 configured on the back surface of the wall structure greening body and the ribs and the space surrounded by the ribs (b). Although not shown in the figure, a stainless steel plate, an aluminum plate, or an FRP resin plate may be formed on the outer surface of the front and back thin plates of the hollow plate 21 for reinforcement. The material of the wire rope 51 shown is stainless steel, and if the diameter thereof is at least 5 mm and the load of the wall structure greening body is 100 kg to 150 kg / m ² , the diameter of the stainless wire rope is from 7 mm. It is preferable to configure a wire rope of 10 mm. Further, the number of stainless wire ropes may be arbitrarily configured to support the load of the wall structure greening body. This installation means is preferable for a self-supporting greening radiation shielding wall and a self-supporting greening wall.

In the configuration shown in the cross-sectional view of FIG. 32, the wall structure greening body is installed by using the wire rope 51 shown in the constituent material of FIG. 43. According to this installation method, a hole for connection is provided at a predetermined position between the hollow underdrain plate 22 having a thickness of 15 mm and the hollow plate-like body 1 for water content having a thickness of 35 mm, which are formed on the back surface of the wall structure greening body. A stainless wire rope with a diameter of 7 mm is applied to the U bolt with a stainless steel U bolt (fixing member 16) inserted in the connection hole, and the U bolt and stainless wire rope are connected using washers and nuts. And fixed. Further, the water-retaining base material 6, the heat insulating plate 42, and the lumber 41 provided on the front surface of the hollow underdrain plate 22 are hollow provided in the water-retaining base material 6 by combining the hollow underdrain plate 22 and the water-containing hollow plate-like body 1. A bolt is passed through the hollow of the plate 22 and fixed to the front lumber 41 and the water-containing hollow plate 1 on the back with washers and nuts. In addition, a long resin plate or a metal rod having a through hole for connecting the above-mentioned bolts is provided on the back surface of the water-containing hollow plate-shaped body 1 in the vertical or horizontal direction of the wall structure greening body, and the bolts, washers, etc. A nut may be used to integrate the wall structure greening body.
Further, the number of stainless wire ropes, the number of fixing members 16, and the position of connection may be arbitrarily configured to be the number and position of the wall structure greening body that can be supported by an earthquake or a storm. This installation means is preferable for a self-supporting greening radiation shielding wall and a self-supporting greening wall. It can also be used for structures other than those used.

FIG. 33 is a cross-sectional view and a perspective view of an embodiment in which the 55th invention is shown.
In the configuration shown in the top view of the upper diagram (a), the nonwoven fabric sheet 28 is placed as shown in the figure, and the water-retaining substrate 6 is placed on the upper surface of the nonwoven fabric sheet 28 from the substantially center position (indicated by the dotted line) in one side region. Is placed. Joint portions 29 are provided on the left and right sides thereof, and joint portions 29 are also provided in places between them. Further, the wound object 31 in which the water-retaining base material 6 placed on the non-woven fabric sheet 28 shown in the top view (a) is wound so as to have a spiral shape 30 at the end is shown as a perspective view in the middle view (b). show. The wound object 31 is formed by folding the non-woven fabric sheet 28 along the center line shown by the dotted line in FIG. (A) and winding the folded material so as to be centered on one of the left and right ends. Further, the lower figure (c) is a cross-sectional view showing the structure of a cross section cut in a vertical plane including the dotted line shown in the figure (b).

As shown in this cross-sectional view (c) in which the scroll is split in half, the water-retaining base material 6 is sandwiched between the continuous non-woven fabric sheets 28 at the lower ends. The water-retaining base material 6 is the water-retaining base material 6 shown in the above figure (a). Further, as shown in the above figure (a), joint portions 29 are arranged in places on the upper portion of the water-retaining base material 6. The water injected from the non-joined portion between the joint portion 29 and the joint portion 29 permeates the lower water-retaining base material 6 and contains water. The bottom of the water-retaining base material 6 is filled with ultrafine activated carbon having a particle size of 990 μm or less.
The outside of the wound object 31 is, for example, wrapped with a wire rope, a string, a resin adhesive tape, an aluminum resin adhesive tape obtained by laminating a fluororesin film on an aluminum foil, or the like, or is joined by a fixing member. Or it is glued with tape. By doing so, the shape of the wound object 31 is maintained. Further, it is preferable to manufacture the wound object 31 having this shape so that the diameter is substantially the same as the diameter of the rainwater infiltration mass emitting radiation. By applying a small amount of external pressure to the wound object 31, it can be stored and installed in close contact with the inner wall of the rainwater infiltration mass. The figure which shows the place where the winding object 31 is stored is the perspective view of FIG. 48.

Further, as the nonwoven fabric sheet 28 of the wound object 31, a nonwoven fabric sheet to which ultrafine activated carbon having a particle size of 990 μm or less is attached is used. Due to the weight of the water contained in the water-retaining base material 6 and the water-retaining base material 6 and the non-woven fabric sheet 28, it is possible to suppress an increase in the dose of radiation emitted from the rainwater infiltration mass. The winding object 31 is not limited to the rainwater infiltration mass, but can be installed in a place where water is concentrated, such as a rainwater mass or a gutter. After the winding object 31 is stored and installed in a rainwater infiltration mass or the like, a lid should be installed so as to block the rainwater infiltration mass or the like in which the winding object 31 is stored in order to ensure safety for pedestrians or the like. Is desirable.
According to another embodiment of the present invention, it is also recommended to manufacture the wound object 31 in a form in which at least one metal, resin, or ceramic net pipe is provided in the center of the wound object 31. When radioactive gas or other gas is aerated in the mesh pipe of the winding object 31 constituting this mesh pipe, the ultrafine activated carbon having a particle size of 990 μm or less provided in the winding object 31 can adsorb the gas, which is useful. Is preferable.

FIG. 34 is an embodiment showing an example of the 57th invention.
In the configuration shown in the cross-sectional view of FIG. 34, an outer container 65 having a bottom and an inner container 66 having a bottom molded of a polyethylene resin added with a black pigment and a water-retaining base material 6 provided in the gap between them are used. , The container body is composed. The inner region of the inner container 66 is used as a radioactive material storage space 70. A water-retaining base material 6 is provided on the container lid 69 that covers the upper surface of the container body in the upper region of the lid bottom plate of the container lid 69. Further, a lid 25 for closing the water injection port and the water injection port is provided on the upper surface of the container lid 69.
The cross-sectional thickness of the water-retaining base material 6 arranged in the gap between the outer container 65 and the inner container 66 is 40 cm. The water-retaining base material 6 is a water-retaining base material in which granular cotton of rock wool and ultrafine activated carbon having a particle size of 990 μm or less are mixed, and the weight when the water content is saturated is about 280 kg / m ² . Due to this weight, it is possible to prevent the radiation emitted from the radioactive material stored in the radioactive material storage space 70 from passing through the outer container 65. Further, the cross-sectional thickness of the water-retaining base material 6 provided on the container lid 69 is 35 cm / m ² . The total weight of the water-retaining base material 6 having this thickness and the water content saturation amount is about 240 kg / m ² . Due to this weight, it is possible to prevent the radiation emitted from the radioactive material stored in the radioactive material storage space 70 from passing through the container lid 69. This container may be manufactured by incorporating the material and molding means selected from the description of [0111] to [0124] which are specific examples of the constitution of the first or second invention.

Further, the material of the container having this configuration is preferably a material that is not easily deteriorated due to the influence of hydrogen sulfide resistance, acid rain resistance, industrial wastewater hot spring water, and the like. A black container in which any of carbon fibers or glass fibers having a diameter of less than 1 mm and a length of 0.7 to 15 mm is added to the polyethylene resin is more preferable because the pressure resistance is increased. Also, select at least one of metal, concrete, reinforced concrete, resin, resin fiber, wood, glass, glass fiber, mineral, mineral fiber, carbon fiber, blast furnace slag fiber, stone, ceramic, rubber, paper, and soil. Or, it is also preferable to configure the outer container 65 and the inner container 66 made of a composite material of the above materials. It is also preferable to configure the metal drum can in the outer container 65 and the inner container 66. Further, as the upper surface shape of the outer container 65 and the inner container 66 having this configuration, any shape such as a square shape, a polygonal shape, a circular shape, and an elliptical shape can be selected. Further, the shape of the container lid 69 may be any shape that matches the shapes of the outer container 65 and the inner container 66. Then, the size of this radiation transmission reduction container may be arbitrarily determined in consideration of the size of the radioactive substance to be stored and the size matching the capacity of the substance contaminated with the radioactive substance.

According to the 58th embodiment, the material of the outer container (pipe) and the inner container (pipe) is metal, concrete, reinforced concrete, resin, resin fiber, wood, glass, glass fiber, mineral, mineral fiber. Select at least one of carbon fiber, blast furnace slag fiber, stone, ceramic, rubber, paper, and soil, or a composite of the above materials.
A bottomless inner container (pipe) made of a net arranged inside the outer container (pipe) so that the side wall retracts inward from the bottomless outer container (pipe) having a cylindrical or square pipe shape at both ends. A moisture-permeable non-woven fabric or an ultra-fine-grained activated charcoal sheet having a particle size of 1200 μm or less attached or impregnated to at least one non-woven fabric is attached to the net wall surface on the outer container (pipe) side of the pipe). Or in preparation
A pipe formed by filling the gap between the ultrafine activated carbon sheet and the inside of the outer container (pipe) with an ultrafine activated carbon having a particle size of 1200 μm or less, or a fiber molded body whose main raw material is blast furnace slag generated during the production of activated carbon and iron. We have invented a radioactive gas ventilation adsorption pipe characterized in that the gaps at both ends are closed by using a lid or the like and bolts, nuts, washers or the like which are closing members. The size of the radioactive gas aeration adsorption pipe is preferably designed in consideration of the gas adsorption capacity of the activated carbon, the amount of gas to be aerated inside the pipe, the adsorption rate, the mass of the activated carbon, and the like. In practical use of the radioactive gas ventilation adsorption pipe, it is preferable to provide an opening provided by connecting the pipe for ventilating the gas to the lid. This pipe structure is suitable for adsorbing various types of gas, and is useful because it can be manufactured at low cost. Even in the above-mentioned gas adsorption, it is also possible to impregnate water into a fiber molded body having no water-repellent action, which is mainly made of blast furnace slag in a pipe. As an advantage of water content, activated carbon is accompanied by heat generation due to the adsorption phenomenon. Moisture content is preferable because it can be predicted that it is theoretically possible to cool and alleviate the heat of adsorption related to this calorific value.

Further, after preparing a lid matching the size of both ends of the radioactive gas aeration suction pipe and filling the gap with any of the water-retaining base materials according to the 71st, 72nd or 74th inventions. An embodiment in which a substance contaminated with a radioactive substance is stored inside the inner container and then sealed by providing lids at both ends is also useful for reducing the radiation of the radioactive substance. Further, when a substance contaminated with a radioactive substance is stored inside the inner container and used, the container (pipe) may be placed sideways, but the installation form is not limited to the horizontal placement. It is also preferable to open an injection port for water content in the outer container (pipe) to inject water into the water retention base material.

In the configuration shown in the sectional view of FIG. 35, a resin bag containing a radioactive substance contaminant 71 that is contaminated with a radioactive substance and emits radiation inside an outer container 65 formed into a cylindrical shape made of concrete. The body 68 (radiation emission storage bag) is placed on a hollow pedestal 67 formed of a hollow resin plate in a ring shape. Under the hollow pedestal 67 and the outer container 65, hollow resin plates are provided as outer and inner lower pedestals 73, and under the hollow resin plate, a resin cargo handling pedestal 75 is arranged. Further, the gap between the outer container 65, the entire pedestal 73, and the bag body 68 inside the outer container 65 forms a water-containing space including the inner region of the hollow pedestal 67 formed in a ring band shape, and the water-containing space is formed. Is filled with the water retention base material 6 without any gaps. A lid 69 is put on it.
The cross-sectional thickness of the water-retaining base material 6 arranged in the water-containing space is 40 cm on average. The water-retaining base material 6 is a water-retaining base material in which granular cotton of rock wool and ultrafine activated carbon having a particle size of 990 μm or less are mixed, and the weight when the water content is saturated is about 280 kg / m ² . Due to this weight (mass), it is possible to prevent the radiation emitted from the radioactive material 71 stored in the radioactive material storage space 70 from passing through the outer container 65. Further, the reason why activated carbon, which is generally known for its physical and chemical adsorption functions, is added to the water-retaining base material 6 is that carbon is at least useful for shielding radiation. Then, it was speculated that among the activated carbons, ultrafine activated carbon having a particle size of 990 μm or less is effective in reducing the dose. It should be noted that a material having an adsorption function may be selected from among the finely shaped carbons including activated carbon and mixed with the water-retaining substrate, and it is also preferable to increase the mixing ratio of the activated carbon. Further, the water-retaining base material may be selected from a material other than rock wool.

Further, since the container having this configuration is provided on the cargo handling table 75 made of resin, it is preferable for moving and transporting in the storage place.
As the upper surface shape or the side surface shape of the outer container 65 having this configuration, any shape such as a square shape, a polygonal shape, a circular shape, a rectangular shape, a pyramidal shape, an elliptical shape, and an arch shape on one side of the square shape may be selected. Further, the outer container 65 preferably has the above-mentioned shape made of copper, stainless steel, tungsten, alloy, concrete, FRP resin, polyethylene resin, vinyl chloride resin, or resin, and a metal can is formed in the outer container 65. It is also good to do. Further, according to the configuration shown in FIG. 62 according to the 64th invention, when a large outer container and an inner container are required, a side wall structure (divided outer container wall) in which a cylindrical side wall is divided into a plurality of parts is required. 111) is manufactured, and when the joint surface (side surface) of the manufactured split side wall structure (split outer container wall 111) is connected using bolts, coking, lining, resin agent, etc., it is cylindrical, although it is an example. It is possible to manufacture an outer container having a diameter of about 4.8 m or more and a height of 2 m or more. Further, the inner container may be divided in the same manner as the divided wall of the outer container to manufacture the inner container wall 112. Then, it is preferable to connect the joint surfaces of the inner container wall 112 having the same mounting and assembling method as the outer container by the fixing means described above.

Further, the hollow pedestal 67 shown in this perspective view has a width of 5 m, a length of 6 m, and a thickness of 35 mm, and a plurality of the hollow pedestals 67 are fitted into a large plate. This hollow pedestal is a hollow plate having a plurality of plate-shaped ribs between the front thin plate and the back thin plate, and the space surrounded by the front thin plate, the back thin plate, and the plate-shaped ribs is filled with the water-retaining base material 6 containing activated carbon. When it is impregnated with water, it is useful for reducing the transmission of radiation emitted downward from the radioactive substance 71 stored in the radioactive substance storage space 70. Further, a hollow plate made of resin having weather resistance is preferable because it is lightweight and inexpensive.
Since the thickness of the water-retaining base material of such a large outer container and the inner container can be 50 cm or more on average, the radiation emitted from the radioactive substance 71 stored in the radioactive substance storage space 70 after water inclusion is the radiation emitted from the outer container 65. Can be prevented from penetrating. That is, the grounds for preventing permeation are that when a dry matter-like water-retaining base material designed with a thickness of 50 cm is impregnated with water, the total load of the water-retaining base material and the water-containing saturation load is 600 kg per square meter. Further, using any of the radiation transmission reducing constituent base materials of the first to fifteenth inventions having the fitting of the sixteenth invention shown in FIG. 16 and the joint of the seventeenth invention shown in FIG. Making large outer and inner containers is also recommended as an example. Further, as shown in the perspective view of FIG. 62, the bottoms (111, 112) of the outer and inner containers (111, 112) of the resin hollow plate in which the front and back thin plates of the hollow plate shown in FIG. 16 have no through holes are formed. It is preferable to manufacture it as a hollow pedestal) 67 because it has excellent weather resistance and can be expected to reduce costs. Further, the shape of the outer and inner containers may be a container having a shape in which the walls at both ends of the U-shaped gutter, which is widely used, are closed. Further, the material forming the lid 69 is not limited to, for example, metal, concrete, resin and the like. It is also preferable to configure a plurality of water-retaining base materials for the outer container and the inner container. Further, in order to manufacture a large-sized lid, it is also preferable to divide the lid and connect it in the same manner as the divided outer inner container wall 111. Further, it is preferable that the large lid is provided with at least one water injection port. Further, the shape of the lid 69 may be any shape that matches the shape of the outer container 65. The size of the radiation permeation reducing container is the capacity of the radioactive substance stored in the bag body 68 or the substance contaminated with the radioactive substance, and the space between the bag body 68 and the outer container 65 and the pedestal 73 for water content. It may be arbitrarily determined in consideration of the size that matches the space.

The configuration shown in the cross-sectional view of FIG. 36 includes an outer container 65 having a bottom made of resin and an inner container 66 having no bottom made of resin. The bottom of the inner container 66 is provided with an inner container lower pedestal 72 made of a hollow resin plate. Then, in the gap between the outer container 65 having a bottom and the inner container 66 without a bottom, and the gap between the inner container lower pedestal 72 and the outer container 65, granular cotton of rock wool and ultrafine activated carbon having a particle size of 990 μm or less are mixed. The water-retaining base material 6 is provided. The inner region of the inner container 66 is used as a radioactive material storage space 70. Further, a container lid 69 for closing the upper part of the container is provided, and a water-retaining base material 6 in which granular cotton of rock wool and ultrafine activated carbon having a particle size of 990 μm or less are mixed is provided in the upper region of the lid bottom plate of the container lid 69. It is prepared. Further, a lid 25 for closing the water injection port and the water injection port is provided on the upper surface of the container lid 69.
The shape of the upper surface of the outer container 65 having this configuration is circular, and the shape of the inner container 66 is cylindrical. The shape of the container lid 69 is a circle that matches the shape of the outer container 65. Further, the pedestal 72 is provided with a circular resin plate that matches the shape of the inner container 65. The shapes of the outer container 65, the inner container 66, and the container lid 69 are examples, and the shape is not limited, and any shape such as a polygon, a circle, and an ellipse may be selected. Further, the shape of the container lid 69 may be any shape that matches the shape of the outer container 65. The size of this radiation transmission reduction container is determined by the volume of radioactive substances stored inside the inner container and the substance contaminated with the radioactive substances, and the gap between the inner container 66 and the inner container lower pedestal 72 and the outer container 65. It may be arbitrarily determined in consideration of the size that matches a certain water-containing space.

The cross-sectional thickness of the water-retaining base material 6 provided in the gap between the outer container 65 and the inner container 66 and the outer container 65 and the pedestal 72 is 40 cm. The water-retaining base material 6 is a water-retaining base material in which granular cotton of rock wool and ultrafine activated carbon having a particle size of 990 μm or less are mixed, and the weight when the water content is saturated is about 280 kg / m ² . This weight can prevent the radiation emitted from the radioactive material stored in the radioactive material storage space from passing through the outer container. Further, the cross-sectional thickness of the water-retaining base material 6 provided on the container lid 69 is 35 cm / m ² . The total weight of the water-retaining base material 6 having this thickness and the water content saturation amount is about 240 kg / m ² . This weight is useful because it can prevent the radiation emitted from the radioactive material stored in the radioactive material storage space 70 from passing through the container lid 69. Further, the reason why activated carbon, which is generally known to have a physical adsorption function, is added to the water-retaining base material 6 is that carbon is at least useful for shielding radiation. Among the activated carbons, ultrafine activated carbon having a particle size of 990 μm or less is expected to be particularly effective for dose shielding.

In the configuration shown in the cross-sectional view of FIG. 37, the outer container 65 formed in a cylindrical shape made of polyethylene resin is made of resin and contains a radioactive substance contaminant 71 that is contaminated with a radioactive substance and emits radiation. The bag body 68 (radioactive material storage bag) is placed on a hollow pedestal 67 in which a hollow resin plate is formed in a ring band shape. Under the hollow pedestal 67 and the outer container 65, hollow resin plates are provided as outer and inner lower pedestals 73. Below that, a resin cargo handling platform 75 is placed. Further, in the gaps from the inside of the outer container 65 and the upper surface of the pedestal 73 to the outside of the radiation emission storage bag 68, a water-containing space is formed including the inner region of the hollow pedestal 67 formed in a ring band shape. This space is filled with the water-retaining base material 6 without any gaps. A lid 69 is further provided to cover it. The lid 69 has a water retention base material 6 inside, and further has a water injection port 25 that connects the space where the water retention base material 6 is arranged and the outside world, and a lid 25 that closes the water injection port 25. ing.

The cross-sectional thickness of the water-retaining base material 6 arranged in the gap between the outer container 65, the bag body 68, and the hollow pedestal 73 is 40 cm on average. The water-retaining base material 6 is a water-retaining base material in which granular cotton of rock wool and ultrafine activated carbon having a particle size of 990 μm or less are mixed, and the weight when the water content is saturated is about 280 kg / m ² . Due to this weight structure, it is possible to prevent the radiation emitted from the radioactive material stored in the radioactive material storage space 70 from passing through the outer container. Further, the reason why the activated carbon, which is generally known to have a physical adsorption function, is added to the water-retaining base material 6 is that the specific activated carbon is at least effective for shielding radiation. Among the activated carbons, ultrafine activated carbon having a particle size of 990 μm or less is effective for dose shielding.
Further, since this constituent container is provided on the cargo handling table 75 made of resin, it is preferable for moving and transporting in the storage place.

In the configuration shown in the cross-sectional view of FIG. 38, the water-impervious sheet 76 is provided on the upper surface of the outer and inner lower pedestals 73 of the configuration of FIG. It is preferable to lay the water-impervious sheet 76 because it prevents the water falling from the upper part from flowing out from under the periphery of the outer container 65 and from the pedestal 73. As in this configuration, the water-impervious sheet 76 may be used for other radiation transmission reducing containers.

In the configuration shown in FIG. 39, a substantially square outer and inner lower pedestals 73 are provided on a substantially square resin cargo handling pedestal 75, and the inner side of the outer container 65 and the upper surface of the pedestal 73 are provided on the pedestal 73. The water-retaining base material 6 is provided so as to be sandwiched between the inside container 66 and the outside of the inner container 66. In the space inside the inner container 66, a radioactive material contaminant storage bag 77 is placed as a radioactive material storage space 70. The shapes of the resin cargo handling platform 75 and the outer and inner lower pedestals 73 are examples, and are not limited to the shapes shown in the drawings. The upper figure (a) is a top view of the container when the container lid 69 is removed, and the lower figure (b) is an overall perspective view.
Further, an outer and inner lower pedestals 73 are provided on the resin cargo handling pedestal 75, and the outer container 65 and the left and right parts of the pedestal 73 are fixed on the pedestal 73 by the fixing member 16. ing. The water-retaining base material 6 is provided so as to be sandwiched between the inside of the outer container 65 and the gap between the upper surface of the pedestal 73 and the outside of the inner container 66. A radioactive material contaminant storage bag 77 is placed in the radioactive material storage space 70 inside the inner container 66. The container lid 69 that covers the upper part of the container lid 69 is provided with a water-retaining base material 6. It is preferable that the outer container 65 and the left and right parts of the pedestal 73 are fixed by the fixing member 16 in this way because the container can be prevented from collapsing. It is desirable to fix at least two places as the fixing place. Further, as the fixing tool, a fixing tool for detachably fixing the outer container 65 and the pedestal 73 is preferable.

In the configuration shown in the cross-sectional view of FIG. 40, U bolts are fixed to the left and right of the upper surface of the outer and inner lower pedestals 73 made of fiber reinforced plastic by using nuts. A wire rope hanging string 74 is passed through the U bolt, and is firmly fixed with a wire clip for connecting the wire rope so that it does not fall out of the U bolt. and,
A bottomless outer container 65 integrally molded into a cylindrical shape with resin is placed on a pedestal 73. Inside the outer container 65, a bottomless inner container 66 made of resin is arranged, and an inner container lower pedestal 72 made of a hollow resin plate is provided at the lower end thereof. Then, in the gap between the pedestal 73 and the outer container 65 and the inner container lower pedestal 72 and the inner container 66, a water-retaining base material 6 in which granular cotton of rock wool and ultrafine activated carbon having a particle size of 990 μm or less is mixed is provided. Has been done. The outer container 65 and the pedestal 73, and the inner container 66 and the pedestal 72 may or may not be fixed to each other by adhesion or the like. The inner area of the inner container 66 is used as a radioactive material storage space 70. Further, a container lid 69 that covers the upper part of the container main body shown in the lower part of the figure is further provided as shown in the upper part of the figure. In the container lid 69, a water-retaining base material 6 in which granular cotton of rock wool and ultrafine activated carbon having a particle size of 990 μm or less are mixed is provided in the upper region of the lid bottom plate. Further, a water injection port and a lid 25 for closing the water injection port are provided on the upper surface of the container lid 69.

This configuration is shown as an example, and for example, the impermeable sheet shown in FIG. 38 may be laid on the upper surface of the outer and inner lower pedestals 73. Further, it is also preferable to lay the water-impervious sheet in contact with the upper surface of the inner container lower pedestal 72 and the periphery of the inner lower end portion of the inner container 66. Further, although the hanging string 74 will be fixed at at least two places, it is more preferable to attach and fix the hanging string to the pedestal 73 at a plurality of places. Further, this configuration is preferable because it enables the radiation transmission reducing container to be suspended and moved by using a heavy machine such as a crane.
Further, regarding the outer container 65 and the inner container 66 having this configuration, for example, if the diameter of the outer container 65 is 150 cm and the diameter of the inner container 66 is 90 cm, the water-retaining base material 6 has a thickness of 30 cm. And it is also possible to make it a height of 10 m. In this case, the outer container 65 and the inner container 66 are preferably formed in a cylindrical shape. The container of this height can also be used for the wall of the fort shown in FIG. 45, which will be described later. Further, a plurality of radioactive substance contaminated storage bags can be stacked in this container, and a form in which the radiation transmission reducing container shown in each figure is laid sideways and provided with lids at both ends is also preferable. When the radiation transmission reducing container is laid down sideways, it is preferable to provide a water injection port on the upper surface of the outer container. FIG. 61, which is an example thereof as a perspective view, is recommended. Further, if the outer container is cylindrical, it can be expected to move left and right, so it is recommended to provide a pedestal or the like for fixing the outer container.

In the configuration of FIG. 41, the water-retaining base material 6 is filled inside the block-shaped body 24 which is a kind of container, and the water injection port 25 provided for injecting water into the water-retaining base material 6 blocks. It is molded into a shape 24. The water injection port 25 is provided with a lid, and the water injection port can be closed with the lid after the water injection to the water retention base material 6 is completed. Further, a configuration in which the block-shaped bodies 24 are stacked by providing a foundation like a concrete block wall is shown in the figure below (c). As shown in the perspective view of FIG. (C), a concrete foundation 27 incorporating a reinforcing bar is provided from the ground to the above-ground part, and another reinforcing bar 26 is tied to the reinforcing bar 26 incorporated in the concrete foundation 27 with a number line or the like. .. Then, the reinforcing bar 26 is inserted into the hollow portion of the block-shaped body 24. The block-shaped bodies 24 stacked by the same construction method as the concrete block wall in this way can be useful in places where radiation shielding is required due to collapse prevention. Further, the weight of the block-shaped body 24 in the water-containing saturated state is 17 to 20 kg per piece. That is, when the block-shaped body 24 becomes a wall structure, it is useful for shielding radiation. Further, the cavity of the block-shaped body 24 is filled with mortar. As a result, the load on the wall structure increases. Further, it is preferable that the block-shaped body 24 is made of fiber reinforced plastic, or is manufactured by vinyl chloride resin molding or polycarbonate resin molding because it has good weather resistance and strength.
Further, the block-shaped body 24 is provided with a lid on the water injection port 25. Note that FIG. (B) is a cross-sectional view of a cross section along the dotted line shown in FIG. (A). As shown in this cross-sectional view, the room filled with the water-retaining base material 6 is divided into three by the rib wall 4, and each of them is filled with the water-retaining base material 6. The rib wall 4 enhances the strength of the block-shaped body 24. However, such a structure is an example, and the block-shaped body 24 is not limited to this structure.

In the configuration shown in the cross-sectional view of the upper view (a) of FIG. 42, the hollow plate 21 having weather resistance due to the aluminum foil bonded to the surface thereof provides an exploded view of the middle view (b) and a lower view (c). The box body 37 shown in the developed view of the above is configured, and the water-retaining base material 6 is filled in the box body 37. According to this configuration, in the manufacturing stage of the hollow plate 21 in which polypropylene resin is used as a molding raw material, a black pigment is selected as an additive as a resin raw material in order to obtain weather resistance. Then, an aluminum foil is further bonded to the surface of the black hollow plate 21 having weather resistance to further improve the weather resistance. Further, one through hole 12 is provided in the central portion of the hollow plate 21. The through hole 12 is opened for the purpose of water injection, and the hollow plate 21 having a through hole shape hollowed out by using an electric tool is fitted into the hollowed portion when the water injection to the water retention base material 6 is completed, and is fitted from above. It is advisable to glue the hollowed out part and its surrounding surface with tape. Further, as shown in FIG. (B), the hollow plate 21 is folded and the closing member 10 to which the adhesive tape is adhered is attached between the side wall and the flat surface portion to form the box-shaped body 37. ..

Further, before forming the hollow plate 21 into the box-shaped body 37, the water-retaining base material 6 filled in the bag 34 is placed in the box-shaped body 37, and each bent portion is bent into the box-shaped body 37. The upper surface end portion (joint portion 29) of the box-shaped body 37 is formed by being adhered with an adhesive tape.
The water contained in the water-retaining base material 6 inside the hollow plate 21 does not easily leak from the sealed hollow plate 21, and is therefore useful as a base material for reducing radiation transmission. Further, the hollow plate 21 is preferable because the front thin plate, the back thin plate, and the rib are integrally molded, so that it can withstand external pressure such as a load. In addition, since polypropylene resin is generally used as a molding raw material and the finished color of the molded body is translucent, the effect of reducing radiation transmission cannot be expected, but the additive pigment is a dark color such as black, green, or blue. Is useful for reducing the transmission of radiation. Further, in this configuration, the box-shaped material for accommodating the water-retaining base material 6 is a hollow plate 21, but this is an example and is not limited to the hollow plate 21, and water is injected. Although the through holes 12 are configured for this purpose, the number may be plural. Further, the through hole 21 may be omitted. Further, in addition to the adhesive tape forming the box-shaped body 37, the box-shaped body 37 may be formed by joining hollow plates by heat welding or rivets.

FIG. 43 is a cross-sectional view showing an example of a configuration in which a wall greening structure having an effect of reducing radiation transmission is installed as a foundation. This configuration corresponds to a specific example of the structure of the 79th invention. As shown in the perspective view of the above figure (a), the left and right H steels 50 are fixed to the concrete foundation 27. In this H steel 50, a wire rope 51 having a terminal nut 53 fixed to the end thereof has a bolt of a fixing member having a through hole opened at a predetermined position in the through hole of the H steel near the tip of the terminal nut. It is fixed with a nut through the open through hole portion. Then, the virtual greening structure 54 shown by the dotted line is fixed to the two wire ropes by the fixing member 16.
The lower figure (b) is a perspective view showing a form in which the wire rope 51 is crossed and fixed in order to reinforce the strength in the upper figure (a).
By constructing the wire rope 51, the terminal nut 53, the H steel 50, and the concrete foundation 27 as shown in FIG. (A) or FIG. (B), the wall greening structure according to the 48th invention can be easily attached and installed. Therefore, this form is useful.
FIG. 31A is a cross-sectional view showing a structure in which a structure corresponding to a specific example of the wall greening structure according to the 48th invention is attached to the structure of FIG. 43 and installed. A hollow plate 22 is configured on the back surface of this wall greening structure so that the longitudinal direction of the ribs is lateral. The wire rope 51 described in FIG. 43 is passed between the ribs, and the back surface of the hollow plate 22 is coated with a heat-shielding paint on a non-woven fabric in order to prevent deterioration of the resin due to ultraviolet rays. Has been done. The use of this heat-shielding paint is an example, and in addition, disaster prevention or non-combustible, flame-retardant sheet, metal plate, concrete plate, resin plate, etc. are attached to a part of the hollow plate to prevent ultraviolet rays and increase the strength. You may.
FIG. 31B is a partial cross-sectional view showing how the wire rope 51 is passed through the hollow plate 22. This configuration is an example, and the mounting method of the wall greening structure is not limited to this.

For the configuration of the upper figure (a) of FIG. 44, refer to FIGS. 21, 22, and 24 on the ground 39, the ground, the fallen leaves, and the upper surface of the undergrowth of the forest to which the radioactive material is attached and emits radiation. The bag body 32 described above is placed, and water is injected or sprinkled into each water-retaining base material, whereby radiation is radiated into the ground 39 of the forest, the ground, the fallen leaves, the surface of the undergrowth, and the air on the upper surface thereof. It is possible to reduce the amount of radiation. The bag 32 is formed by planting plant seedlings, seeds can be germinated, seeds and seedlings grow in the bag 32 together, or the water-retaining substrate is simply moistened. There are various specifications such as ,. According to this configuration, it is possible to shield the dose and restore the forest, which is useful for maintaining the green environment.
By wrapping the bag body 32 or the sheet base material of the 55th invention around the trunk of the tree, it is useful for reducing the radiation dose of the radioactive substance adhering to the tree. Further, the above-mentioned bag body 32 and sheet base material are preferable because they can be widely used for reducing radiation contaminated with radioactive substances such as telephone poles. As an example, it may be used on the slope of the road shown in the figure (b) below. The hollow underdrain plate of the ninth invention may be provided on the lower surface of the bag body 32 having this configuration. To add this base material, a plurality of through holes for driving resin piles are provided in the hollow underdrain plate, the piles are passed through the through holes, and the hollow underdrain plate is fixed to the upper surface of the soil when the piles are driven into the soil. Then, the bag body 32 may be fixed to the hollow underdrain plate by any fixing method. It is preferable to provide a hollow culvert plate by adding a drainage effect and reducing the transmission of radiation emitted from radioactive substances adhering to soil or grass.

In the configuration of the perspective view of FIG. 45, the H steel 50 is driven into the ground at the four corners of the outer region where a plurality of radiation emission waste 59s are stored, or on the ground other than the four corners, and the H steels are combined with each H steel. As described with reference to FIG. 43, a plurality of wire ropes are attached to the H steels between the H steels. The attached wire rope and the fixing member eyebolts and nuts for fixing the water-containing hollow plate-shaped body 1 are attached to the predetermined positions of the water-containing hollow plate-shaped body 1. Then, the wire rope is passed through the loop of the eyebolt fixed to the water-containing hollow plate-shaped body 1 to be the wall, and the water-containing hollow plate-shaped body 1 is fitted without a gap, thereby forming an upright wall. A structural radiation emission storage fort 62 can be built. A water-containing hollow plate-shaped door -60 for management is hingedly attached to the radiation emission storage fort 62.
The height of the water-containing hollow plate-like body 1 used for the radiation emission storage fort 62 can be selected from 2 m to 6 m and the thickness can be selected from 30 mm or more, so that a wall having an effect of reducing radiation transmission can be constructed. Is possible. For example, in order to reduce the radiation transmission reduction rate to about 80%, the thickness of the plate is set to 25 cm. Then, the weight of the water-containing saturated state becomes ^{250 kg / m 2.} This wall weight is useful because the radiation of the radiation emitting waste 59 can be considerably shielded. However, since it is possible that the radiation from the stored radiation emission waste 59 may pass over the radiation emission storage fort 62, the radiation emission shielding coating sheet 61 shown in the figure (b) below is emitted. Covering the upper surface of the waste 59 prevents upward radiation, which is more preferable. Further, although not shown in the figure, even if a roof formed by forming the hollow plate-like body for water content of the present invention into a size matching the size of the radiation emission storage fort 62 is constructed in the radiation emission storage fort 62. good. That is, it is advisable to design and build beams and columns (H steel), which are indispensable for structural strength, by calculating them from structural calculations. In addition, on the front side and roof of the radiation emission storage fort 62, a board in the form of a soil and a nonflammable sheet bonded to the upper surface of the base material according to the ninth invention shall be attached to construct wall greening. Is possible, and it is preferable because the appearance can be made natural.
In the figure below (b), the hollow plate-like body 1 for water content is laid on the ground surface of the inner region of the radiation emission storage fort 62 according to the configuration of the upper figure (a) and the ground surface close to the outside. It is a perspective view which shows. An irrigation pipe 15 is attached to the top surface of the water-containing hollow plate-like body 1. The role of the irrigation pipe 15 is a preliminary base material configuration for stopping the scattering of radioactive substances when there is a risk of the radioactive substances being scattered due to strong wind or the like, and the present invention is not limited thereto.

FIG. 46 is a perspective perspective view showing how the wound object 31 shown in FIG. 33 (b) is installed inside the rainwater infiltration mass 63. Reference numeral 12 is a through hole provided in a general rainwater infiltration mass 63. Further, reference numeral 64 indicates a rainwater infiltration mass connection pipe. Further, reference numeral 8 is a lid of the rainwater infiltration mass 63. When the land near the rainwater infiltration mass 63 is contaminated with radioactive substances, the running water of the rainfall falling on the land moves the radioactive substances into the perforated underground drainage pipe 64 connected to the rainwater infiltration mass 63. It is expected to make it. The radioactive material flowed together with the water in the perforated underground drainage pipe 64 moves to the rainwater infiltration mass 63 and adheres to and is deposited on the soil or stone in the vicinity of the mass 63 or the rainwater infiltration mass 63. It is also expected that there will be. Therefore, it is expected that the rainwater infiltration mass 63, the rainwater mass, and the gutters where radioactive materials are washed away and accumulated from the nearby land have become contaminated areas. The value of the radiation dose of the radioactive material accumulated in this way should be higher than the average value of the surroundings. Placing the winding object 31 in the rainwater infiltration mass 63 is useful because the dose of radiation transmitted through the lid 8 of the rainwater infiltration mass 63 can be reduced.

FIG. 47 is a cross-sectional view showing that the rooftop greening area 84 exists on the rooftop 80 of the building. A waterproof layer is formed on the skeleton of the rooftop greening area 84. A heat insulating material layer is provided on the upper surface of the waterproof layer. The plate body of the ninth invention manufactured by foam injection molding is laid on this heat insulating material layer because it also has a heat insulating effect. On the upper surface thereof, an example of turfing (area 100 m ² ) according to the 35th invention constitutes a rock wool soil having water retention. The thickness of this soil is 15 cm, the water content is 130 liters per square meter, and the total weight of the soil structure is 200 kg (water saturation). An underground irrigation tube 83 is provided in the soil of this turf. The water source of the underground irrigation tube 83 is the rainfall 89 that falls on the ^{surface (100 m 2} ) of the rainfall collecting plate 78 provided on the roof 85 existing in the building one floor higher than the roof. In the rain collecting plate 78, the hollow underdrain plate 22 having a plurality of band-shaped through holes of the ninth invention is used as the rain collecting plate 78. As shown in the figure, a rainfall collecting plate 78 is provided on the upper surface of the pedestal 86 installed in an inclined shape. A strip-shaped through-hole forming drainage pipe 23 is connected to the low end surface of the rainfall collecting plate 78 provided on the inclined surface. A rainwater flow pipe 79 is connected to the drainage pipe 23 and is connected to a rainwater storage tank 81 provided on the roof. A float switch electric water pump 82 is installed inside the rainfall water storage tank 81. Then, an irrigation pipe 15 is provided between the floating switch electric water pump 82 and the irrigation tube 83 buried in the soil of the turf of the rooftop greening area 84, and water is passed from the pump 82 to the irrigation tube 83. It is done like this. The mechanism of operation of the floating switch electric water pumping pump 82 is that the floating switch automatically operates when the rainwater flowing from the rainfall collecting plate 78 is stored in the rainfall storage tank 81 and the amount of water stored reaches a certain height. It has a mechanical function to operate the electric motor of the electric water pump 82. When the amount of water stored in the rainfall water storage tank 81 does not reach a certain amount, the electric motor of the electric water pump 82 does not operate.

According to this rainfall irrigation system, for example, when the soil water content is 50% (1 square meter 65 liters) and there is a rainfall of 30 mm, the rainfall of 30 mm falling on the turf is additionally water-containing in the soil. Then, almost all of the rain amount of 30 mm that has fallen on the rainfall collecting plate 78 is retained by the rainwater from the irrigation drip tube 83 buried in the ground of the turf through the water pressure by the motor power of the floating switch electric water pump 82. Excellent soil is uniformly flooded. That is, since the sum of the amount of rainfall retained on the turf and the amount of rainfall falling on the rainfall collecting plate 78 is retained in the green area, the rainfall collecting plate 78, the strip-shaped through hole forming drain pipe 23, and the drainage It is useful because rainfall resources can be utilized by connecting and connecting the pipe 23, the rainfall water storage tank 81, the floating switch electric water pump 82, the irrigation pipe 15, and the irrigation drip tube 83 using a joint base material and a fixing member. be. It is also possible to replace the irrigation drip tube 83 with a pop-up sprinkler that requires water pressure. Further, the rainfall collecting plate 78 can be replaced with a photovoltaic power generation panel. This green space utilization system utilizing rainfall is practically useful because it can obtain the effect of reducing radiation transmission when it is provided on the rooftop or the ground surface of a building contaminated with radioactive substances. In addition to greening, it is also preferable to select and install the 36th invention on the rooftop or on the surface of the earth contaminated with radioactive substances, for example. Since this irrigation method using rainwater is also useful for general greening, if the rainfall collecting plate 78 can be installed in a close area of the green space, it can be adopted regardless of the rooftop or the ground surface. preferable.

According to the cross-sectional view shown in FIG. 47 (b), the wall greening structure 54 is installed in a self-supporting manner on the ground 49 contaminated with radioactive substances. In this self-supporting wall greening structure 54, the radiation transmission reducing wall structure 116 according to the inventions of the 80th to 86th is installed with a length of 30 m. In addition, the water saturated load is 1 square meter in the front area where 10 radiation transmission reduction wall structures 116 with a water saturated load of 1800 kg (width 3 m, depth width 0.7 m, height 1.5 m) are connected. A radiation transmission reducing constituent base material 117 having a soil structure thickness of 200 kg and a soil structure thickness of 15 cm is provided in an amount of ^{500 m 2.} The base material 117 for reducing radiation transmission is composed of turf. Further, the rainfall collecting plate 78, the strip-shaped through-hole forming drain pipe 23, the drain pipe 23, the rainfall storage tank 81, the floating switch electric water pump 82, the irrigation pipe 15, and the irrigation drip, which are also configured in FIG. 47 (a). The tube 83 is connected to and connected to the radiation transmission reduction wall structure 116 and the radiation transmission reduction constituent base material 117. The radiation transmission reduction wall structure 116 configured in this way can obtain the effect of reducing radiation transmission from the adjacent land, and the water content weight of the radiation transmission reduction constituent base material 117 and the dose shielding effect of the constituent base material are combined. This is preferable because the effect of reducing radiation transmission from the ground 49 contaminated with radioactive substances can be obtained. In schoolyards and playgrounds where radioactive substances remain after decontamination, the phenomenon that children with restricted exercise and play become obese is prominent. Obesity in a growing child raises concerns that the child will develop an adult disease in the future. By providing such a schoolyard and garden with a turf that has a shielding effect, it is possible to regain time for exercise and play that stimulates the five senses for children, who are national treasures and human treasures. It is useful.

<87th Embodiment>
The embodiment shown in FIG. 64 is a water-repellent heat insulating body formed into a rectangular parallelepiped having a thickness of 15 cm, a width of 90 cm, and a width of 60 cm by adhering a resin to innumerable fibers mainly made of blast furnace slag generated during steelmaking. It is a perspective perspective view which showed that the space area inside the material 42 is filled with the granular activated carbon composed of the thickness 5 cm, the width 80 cm, and the width 50 cm. In addition, the activated carbon having an ultrafine grain having a particle size of 990 μm or less is selected.

Further, a cross-sectional structure cut by a dotted line connecting (a) and (a) between (a) and (a) described in the figure is shown as a cross-sectional view in FIG. (B). Then, the cross-sectional structure cut rearward along the dotted line connecting between (c) and (c) shown in the cross-sectional view of FIG. (B) is shown in the top view of FIG. (C). Further, in the inner region of the impermeable bodies 42a, 42b, 42c, 42d shown in the top view of FIG. The inside of the space region is filled with activated carbon having a particle size of 990 μm or less. The water-repellent heat insulating material 42 having a thickness of 5 cm, a width of 90 cm, and a width of 60 cm is provided on the upper surfaces of the water-impervious bodies 42a, 42b, 42c, and 42d shown in FIG. According to the form of this figure, the water-repellent heat insulating material 42 forms three layers in the thickness direction. Each of the water-repellent heat insulating materials 42 stacked in the thickness direction is adhered with a resin-based adhesive.

Further, as an example of the means for manufacturing the present invention, a mold matching the size to be manufactured is formed, and resin or water, cement and rock wool granular cotton are mixed on the bottom surface and the side surface of the inner region of the mold. The upper surface of the rock wool granular cotton for molding is filled with the rock wool granular cotton for molding, and the inner region of the bottom surface and the side surface is filled with activated charcoal or zeolite, and the rock wool granular cotton for molding is filled on the upper part thereof. The invention is completed by applying a load to the material and crimping it, drying it immediately after crimping, and removing the mold after drying. Such a manufacturing means is preferable because the manufacturing cost is low, but the manufacturing method is not limited. Further, the size shown in the above figure is an example, and the size is not limited thereto. Further, although the invention depends on the manufacturing environment, since it adsorbs gas in the atmosphere and suspended fine particles, it is preferable to pack it in paper or a resin bag immediately after manufacturing. It is preferable because the quality of the invention is ensured by packaging.

In addition, the shape of the present invention can be selected from any shape such as a cube such as a square, a circle, an ellipse, a rectangular parallelepiped, a triangular pyramid, a quadrangular pyramid, a cylinder, a disk, a plate, or a sphere, and a manufacturing method. May be good. The vapor phase structure provided by using a resin for the activated carbon and rock wool fiber of the present invention is preferable because it can be presumed to be useful for the adsorption of radioactive gas. Further, it can be inferred that the gas phase structure comprising the activated carbon and zeolite of the present invention is useful for reducing the dose shielding. In addition, water may be impregnated in a part or all of the gas phase structure provided with the activated charcoal of the present invention. It can be inferred that it is useful for. According to another embodiment of the present invention, ultrafine-grained activated carbon having a particle size of 990 μm or less is attached or impregnated to any one of the inventions described in 53 or 54, or at least one non-woven fabric. A non-woven fabric in which a non-woven fabric is folded or laminated in a plurality of sheets, a paper in which a paper sheet in which zeolite is attached or impregnated to at least one sheet of paper is folded, or a form in which the non-woven fabric is laminated in a plurality of sheets is selected, and the present invention is made. It is also preferable to replace with activated carbon and zeolite filled in a partial void region inside any of a fiber molded body, a glass fiber molded body, and a ceramic fiber molded body using blast furnace slag as a main material to produce a gas phase structure. .. The outer shape of the present invention is a cube, a rectangular parallelepiped is installed between the floor and the ceiling of the inner wall of a building that stores radioactive substances, and the storage cube and the rectangular parallelepiped are arranged inside the building wall from the storage body surface of the present invention. It is useful to select a plate-shaped body and install it using a fixing member because it can be an inner side wall structure of a building with reduced permeation of radioactive substances.

<70th embodiment>
In the embodiment of the 70th invention, after the water-retaining base material of any of the 57th to 69th inventions is filled in the gap, water is injected into the water-retaining base material to contain the water-retaining base material. It is preferable because the effect of reducing radiation transmission appears after water injection. Water injection into the water-retaining substrate is an embodiment of the present invention as well as the present invention.

<Embodiment of 71st embodiment>
In the embodiment of the 71st invention, the water-retaining base material is a mineral fiber, a mineral fiber molded body, a resin fiber, a resin fiber molded body, a glass fiber, a glass fiber molded body, a carbon fiber, a carbon fiber molded body, a ceramic fiber, and the like. Ceramic fiber molded body, finely shaped carbon, paper, newspaper, paperboard, highly water-absorbent polymer resin, rot, non-woven fabric, cloth, cotton, fine vegetable powder, grain, salt, sweetener, wood, soil, wax, pulp, Mineral fine powder, seaweed fine powder, algae, blast furnace slag fine powder, steel slag, sand, sodium chloride, barium, fertilizer, feed, leaf rot, volcanic ash, colloidal solution of barium sulfate, paraffin, cellulose, activated charcoal, charcoal, lacquer, Cement, colored sand, minerals, sponges, desiccants, pigments, sacran (suizenjinori), preservatives, resin pellets, resins, non-woven fibers with or impregnated with highly water-absorbent polymer resin, on at least one non-woven fabric. The radiation of the invention according to any one of the first to 70 or 73, 75 to 90, which is at least one of the fibers or the non-woven fabric to which the finely shaped carbon having a particle size of 1200 μm or less is attached or impregnated. It is a permeation-reducing constituent base material.
It is preferable that one or a plurality of types of the water-retaining substrate are selected and filled in a predetermined place configured in the invention according to any one of the first to 70 or 73 and 75 to 90. The water content of the selected water-retaining substrate exerts an effect on reducing radiation transmission. Further, the above-mentioned water-retaining base material is preferable because it is predicted that the adsorption of radioactive substances and the effect of reducing shielding will be exhibited depending on the qualities of the water-retaining base material.

<72nd Embodiment>
In the embodiment of the 72nd invention, the mineral fiber molded body is a rock wool granular cotton or a rock wool granular cotton perforated bag packing body, a rock wool plate-shaped body, or a rock wool plate-shaped perforated bag packing body. The radiation transmission reducing constituent base material according to the first to 70 or 73 to 90, wherein the rock wool felt or the rock wool felt perforated bag package, the glass fiber is glass wool. Since it can be inferred that a form that permanently retains innumerable minute voids is useful for the effect of reducing radiation transmission, this form of rock wool or the like is preferable.

<73rd Embodiment>
The 73rd embodiment is from a polyethylene resin sheet or a bag made of a polyethylene resin film, a two-layer structure of a polyethylene resin film having a polyethylene resin sheet on the front surface and a plurality of holes on the back surface. The water-retaining base material of any one of the 71st and 72nd inventions is filled in any one of the bags, and at least one water injection port is opened in the bag. The present invention is preferable because it is determined that the effect of reducing radiation transmission can be obtained at a low cost.

<74th embodiment>
In the 74th embodiment, a shape stabilizer (polyethylene glycol), an oil, a molybdic acid aqueous solution, a colloidal solution of barium sulfate, an epoxy resin, sodium tungstate, a gel-like liquid, a varnish, and ethanol are used on the water-retaining substrate. It is a radiation transmission reduction constituent base material of any of the inventions of Nos. 1 to 73 or 75 to 90, wherein any of a surfactant, a fluorine-based surfactant, or a large-mass solution is injected into a water-retaining base material. When this material is selected from and injected into a water-retaining substrate, it is preferable to reduce radiation transmission.

<75th embodiment>
FIG. 63 In this embodiment, the above figure (a) is a perspective view showing an example of this embodiment.
Further, the middle figure (b) is a perspective view showing a dotted line connecting a and a in the above figure (a) in a cross section.
The water-impervious body shown in the lower layer of the figure is provided with a rectangular parallelepiped of rock wool in which the inner region of the water-impervious sheet 76 covering the surface is water-repellent treated with resin. For the water repellent treatment, resin is used to form a rectangular parallelepiped and to prevent water from entering from the outside.
The lower surface, front surface, side surface, rear surface, and upper surface of the rectangular parallelepiped of rock wool fiber are covered with a rubberized cloth sheet made by laminating fluorine rubber, aramid fiber, and aluminum foil. This rubberized cloth sheet has heat resistance and insulation at 200 to 250 ° C. depending on the conditions of the installation location, and is useful for shielding radiation.
In addition, the square body of rock wool is covered and packaged with a rubberized cloth sheet, and in this packaging, the rubberized cloth sheet and the square body of rock wool are adhered using polyvinyl chloride tape, waterproof airtight tape, and adhesive. Adhesive and hermetically sealed. It is also preferable that the same ends of the coated and packaged rubberized cloth sheets are bonded to each other by heat fusion. As the method for sealing the water-impervious sheet 76 constituting the water-impervious body, any packaging means may be selected in addition to the above-mentioned packaging means.

In the middle layer of the impermeable body, granular cotton 101 of rock wool is formed in the inner region of the impermeable sheet 76 covering the surface in substantially the same size as the rectangular parallelepiped of the lower and upper impermeable bodies. The rectangular parallelepiped formed of the granular cotton 101 of rock wool is provided inside a rubberized cloth bag 32 formed by crimping a polyester base cloth which is a water-impervious sheet 76 and a chloroprem rubber.
Since this rubber-lined bag body 32 has excellent water pressure resistance, water does not leak from the bag body 32 even if the rock wool granular cotton 101 of the water-retaining base material 6 is impregnated. preferable. The end faces of the same rubberized cloth bag 32 are bonded together by heat fusion to form the bag 32. A water injection hole 25 for water injection is provided in the sealed bag body 32. A notch may be formed in the water injection hole because it is preferable that a hose for water injection can be injected. Then, when the water injection hole or the notch forming portion is closed by using a polyvinyl chloride tape, a waterproof airtight tape or a rubberized cloth sheet after the water injection into the granular cotton 101 of rock wool is completed, the water content of the water retention base material 6 does not decrease. Therefore, it is preferable.

The water shield in the upper layer is the same as the water shield shown in the lower layer. Further, as shown in the figure, the three impermeable bodies are fixedly packed with a dedicated wire clip, a screw screw, or the like for fixing the wire rope using a stainless wire rope.
The factors for reducing the permeation of the radioactive substance of the package 35 coated with the water-resistant rubber sheet composed of the upper layer and the lower layer are the insulating fluororubber, the heat-resistant aramid fiber, and the volume of about. A middle layer in which 90% of the fibers are made from minerals with a fine void structure and water-repellent treatment is applied to the rock wool molded square, and the rock wool granular cotton 101 square is filled inside the impermeable bag. By integrating the water-impervious body provided in the above, it is possible to maintain a static gas phase state in the upper and lower structural layers of the integrated packaging structure. Then, in the middle layer, a structure that can hold a layer of water that does not move will be formed. That is, it is useful because it can be inferred that the permeation reduction of radioactive substances can be obtained by the invention that retains a rectangular parallelepiped of gas having a small amount of water vapor and a water-containing layer having oxygen. In addition, a total load of 133 kg, which is a sum of the impermeable body load of 16 kg of the upper layer and the lower layer, the dry water retention base material load of 20 kg of the middle layer, and the water content saturation load of 97 kg, is useful for increasing the permeation reduction rate of radioactive substances. The combined size of the three impermeable bodies is 60 cm in width, 90 cm in width, and 60 cm in height. It is theoretically predicted that the transmittance of gamma rays, which are highly transparent radiation, can be suppressed to about 50% with a weight of 133 kg due to the stacking and integration of the impermeable bodies shown in the figure. Furthermore, since it has shielding elements such as a gas phase layer, a heat insulating layer, and an insulating layer other than the shielding factor caused by the load, it is presumed that the transmission of gamma rays is suppressed more than the effect of reducing the transmission of gamma rays caused by a general load. Will be done.

Further, according to the structure of the cross-sectional view shown in FIG. (C), the impermeable body arranged in the lower layer is the same as the impermeable body configured in the upper layer and the lower layer shown in the above figures (a) and (b). However, a sheet 17 having ultrafine activated carbon having a particle size of 990 μm or less adhered to the inside of a rock wool molded rectangular parallelepiped in which mineral fibers are water-repellent is arranged and provided in a plane shape.
Further, the impermeable body arranged in the upper layer is the same as the impermeable body in the middle layer shown in the above figures (a) and (b). Then, as shown in the figure, the two impermeable bodies are fixedly packaged with a dedicated wire clip, screw screw, or the like for fixing the wire rope using a stainless wire rope. Adhesives, adhesives, and front and back adhesive tapes may be used to individually attach the impermeable bodies to each other on the surfaces of the impermeable bodies facing each other when they are fixedly packed with the wire rope, wire clip, screw screw, or the like. As another means for fixing the impermeable body configured in the multi-layered structure, any one of the plate body, the hollow plate, and the hollow underdrain plate of the ninth invention is applied to the outer surface of the impermeable body configured in the multi-layered structure. It is preferable to use a fixing member to form an integrated structure by squeezing it. It is preferable to select the fixing means because the effect of reducing the permeation of the radioactive substance of the ninth invention synergistically acts to increase the permeation reduction rate of the radioactive substance of the present invention.

The total load of 125 kg, which is the sum of the load of the impermeable body of the lower layer of 8 kg, the load of the dry water-retaining substrate of the middle layer of 20 kg, and the water content saturation load of 97 kg, is useful for increasing the permeation reduction rate of radioactive substances. Further, it is theoretically predicted that the load due to the two-layer impermeable body configuration in the figure can suppress the transmittance of gamma rays, which are highly transparent radiation, to about 50%. Furthermore, since it has a shielding composite element such as a gas phase layer, a heat insulating layer, an insulating layer, and a carbon layer other than the shielding factor caused by the load, it suppresses the transmission of gamma rays more than the effect of reducing the transmission of gamma rays caused by a general load. It is presumed to do.

When the gas phase structure according to the 87th invention is selected and replaced with the gas phase body or the liquid phase body packaged in the water-impervious sheet of the present invention or packed in the bag body made of the water-impervious sheet, it is radioactive. It is preferable because it is considered that the effect of reducing the permeation of the substance is increased.

Further, the material constituting the material is not particularly limited, and for example, the bag body made of a water-impervious sheet for packaging and a water-impervious sheet is a rubberized cloth sheet formed by crimping a fluororubber and an aramid fiber base cloth, and fluorine. Rubberized cloth sheet made by crimping rubber, aramid fiber base cloth and aluminum foil base cloth, glass fiber woven fabric, aluminum foil, aluminum foil resin sheet made by crimping aluminum foil base cloth and fluororesin film, rubber and aluminum Rubberized cloth made by crimping foil base cloth Glass fiber fabric, rubberized cloth sheet made by crimping nylon base cloth and rubber, rubberized cloth sheet made by crimping nylon base cloth and thermoplastic polyurethane elastomer and rubber, Rubberized cloth sheet made by crimping polyester base cloth with thermoplastic polyurethane elastomer and rubber, rubberized cloth sheet made by crimping aramid fiber and silicon rubber, rubber made by crimping polyester base cloth with polyethylene rubber or chloroprene rubber It is preferable to select either a pulling cloth sheet or a polyethylene resin sheet, and the invention in which the selected impermeable sheet and the material of the bag body are stacked in a plurality of layers is also preferable.
Further, as for the shape of the present invention, a method of manufacturing and stacking arbitrary shapes such as a cube, a rectangular parallelepiped, a triangular pyramid, a quadrangular pyramid, a cylindrical shape, a disk shape, and a plate shape may be selected.

Hollow plate for water content 1
Table thin plate 2
Back thin plate 3
Rib 4
Water-containing space 5
Water retention base material 6
Packaging water retention base material 7
Cover 8
Closure bottom plate 8-A
Closed end face 9
Closing member 10
Band-shaped through hole 11
Through hole 12
Planting hole 13
Penetrating perforated rib 14
Irrigation pipe 15
Fixing member 16
Water permeable sheet with activated carbon 17
Closed welding 18
Water barrier 19
Net 20
Hollow plate 21
Hollow culvert 22
Strip-shaped through-hole formation drainage pipe 23
Block 24
Water inlet and lid 25
Reinforcing bar 26
Concrete foundation 27
Non-woven sheet 28
Joint 29
Spiral 30
Rolled object 31
Bag body 32
Soil 33
Plant seeds 34
Package 35
Notch 36
Box body 37
Development view 38
Forest ground 39
Tree 40
Non-combustible material / flame-retardant material / disaster prevention material 41
Water repellent insulation 42
Fitting 43
3D linear cradle 44
Cradle 45
Pile 46
Bottom plate 47
Bottom plate drain hole 48
Radioactive ground 49
H steel 50
Wire rope 51
Drain gutter 52
Terminal nuts and bolts 53
Wall greening structure 54
Lumber 55
Drainage ditch 56
Shibakusa 57
Surplus water 58
Radiation emission waste 59
Hollow plate-shaped door for water content 60
Radiation emission shielding coating sheet 61
Radiation Emission Storage Fort 62
Stormwater infiltration basin 63
Rainwater infiltration basin connection piping 64
Outer container 65
Inner container 66
Hollow pedestal 67
Radiation emission storage bag 68
Container lid 69
Radioactive material storage space 70
Radioactive material contaminants 71
Inner container lower pedestal 72
Outer and inner lower pedestals 73
Hanging string 74
Cargo handling platform 75
Geomembrane sheet 76
Radioactive material contaminant storage bag 77
Rain collection board 78
Rainfall water flow pipe 79
Rooftop 80
Rainfall water storage tank 81
Float switch Electric water pump 82
Underground irrigation tube 83
Rooftop green area 84
Building roof or roof 85
Pedestal 86
Biodegradation sheet 87
Oblate sheet 88
Linear joint 89
Zeolite 90
Carriageway 91
Rainfall 92
Radioactive material contaminated soil 93
Road slope 94
Plant 95
Drainage channel 96
Convex surface 97
Water storage 98
Lattice 99
Super absorbent polymer 100
Rock wool granular cotton 101
Aggregate 102
Iron plate 103
Cushion material 104
Support material 105
Net protection sheet 106
Concrete base material 107
Waterway 108
Heavyweight 109
Types of resin-added pigment colors (dark blue, blue, green, black, gray, purple, brown, red) 110
Divided outer container wall 111
Divided inner container wall 112
Gutter 113
Masu 114
Water storage tank 115
Radiation transmission reduction wall structure 116
Radiation transmission reduction constituent base material 117
Gas phase part 118
Liquid phase part 119
Activated carbon 120

Claims (4)

The gap between the outer container side wall, the inner container side wall arranged inside the outer container side wall so that the side wall and the bottom retreat inward from the outer container side wall, and the gap between the outer container side wall and the inner container side wall was filled. The outer container side wall, or the outer container side wall end portion having a shape in which the outer container side wall and the inner container side wall are divided into a plurality of portions and formed into the plurality of divisions. Alternatively, the outer side container side wall end portion and another outer container side wall end portion identical to the inner container side wall end portion or the inner container side wall end portion are fixed to each other by a fixing member, and a lid covering the outer container side wall. The lid is an integral type or a lid formed in a plurality of parts, and the end portions of another lid that is the same as the divided lids are fixed to each other by a fixing member. And
A hollow plate body, a pedestal, or a cargo handling platform is provided on the bottom surface of the outer side container and the inner side surface of the inner container.
A radiation transmission reducing container characterized in that the lid body is provided with a plurality of water injection ports and handles. The radiation transmission reducing container according to claim 1, wherein the lid covering the upper portion of the side wall of the outer container is provided with a water-containing space, and the water-containing space is filled with a water-retaining base material. The water-retaining base material is mineral fiber, mineral fiber molded body, resin fiber, resin fiber molded body, glass fiber, glass fiber molded body, carbon fiber, carbon fiber molded body, ceramic fiber, ceramic fiber molded body, fine-changing carbon, Paper, mineral fine powder, blast furnace slag fine powder, steel slag, sand, sodium chloride, barium, fertilizer, feed, rot leaves, volcanic ash, cellulose, activated charcoal, charcoal, lacquer, cement, colored sand, minerals, desiccant, pigment, Non-woven fabrics with preservatives, resins, high water-absorbent polymer resins attached to or impregnated into fibers, non-woven fabrics or fibers with at least one non-woven fabric having or impregnated with finely shaped carbon having a particle size of 1200 μm or less. The mineral fiber molded body is at least one of, rock wool granular cotton or rock wool granular cotton perforated bag packing body, rock wool plate-shaped body or rock wool plate-shaped perforated bag packing body, Rock wool felt or rock wool felt perforated bag packing body, the glass fiber is either glass wool, and the shape stabilizer (polyethylene glycol), oil, molybdenum acid aqueous solution, colloid of barium sulfate are placed on any of the water-retaining base materials. One of claims 1 or 2 , wherein any of a solution, sodium tungstate, a gel liquid, varnish, ethanol, a surfactant, a fluorine-based surfactant or a large-mass solution is injected. The described radiation transmission reduction container. The material constituting the outer container side wall, the inner container side wall, the lid body, the pedestal, the cargo handling table, the water inlet, and the handle is any one of metal, concrete, plastic, and carbon fiber. radiolucent reduction container according to any one of claims 1-3, characterized in that it.

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