JP6714643B2 - Water transfer structure - Google Patents

Description

Radiation reduction components are used for land with relatively high concentration of radiation, gardens, schoolyards, stadium grounds or lawns, on farmland, concrete, asphalt, road slopes, building walls, roofs. Above, around and around the waste accumulated in decontamination work, installed as a self-supporting wall structure, construction and garden, schoolyard, stadium ground or lawn, on farmland, forest, wall of building, roof A plant is installed on the top surface to create a green space, and a wall is erected on and around the land with a relatively high concentration of radiation, the border area of the adjacent land facing the building, and the waste accumulated in the decontamination work. Also, the present invention relates to a radiation protection green space and a radioactive material diffusion preventive green space structure using the radiation-transmission-reducing constituent base material, which is suitable to be installed inside the rainwater-penetrating trough or in the gutter.

The nuclear power plant and its surrounding area or the radioactive material handling business facility and its surrounding area are contaminated with radioactive materials scattered in the natural environment due to an accident at a nuclear power plant or an accident at a radioactive material handling business facility. Also, radioactive materials have been decontaminated in the event of an accident.However, in the case of soil, soil, lawn, etc. contaminated with radioactive materials, the surface layer is peeled off, and concrete, asphalt, and law are used. Decontamination work is carried out by methods such as peeling or high-pressure washing on contaminated areas such as surfaces and roofs. However, there is concern about re-dispersion of radioactive materials due to transfer to storage of decontaminated materials and washing, and precipitation contamination of water streams. Also, radiation from radioactive materials remains in the decontaminated area. 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, a large amount of decontaminated material is concentrated to emit a high concentration of radiation. If radiation remains on the land or building next to the decontaminated land, the radioactive material that adheres to or penetrates the adjacent land or building is scattered by the wind or rainwater adheres to or penetrates the building surface. There are not a few places where high-concentration radiation is radiated by concentrating and remaining in drainage facilities at the water flow destination, on the ground, or in the ground.

In addition, radioactive materials that adhere to the ground due to strong winds and automobiles float in the surrounding areas and adhere to the ground and buildings again. There are challenges to radiation.

Radiation caused by the presence of such radioactive materials has not been clarified for all the harmful effects on humans, animals, and various other ecology. In addition, it is more dangerous to orally administer radioactive materials floating from a location contaminated with radioactive materials, but it is not easy to remove radioactive materials from contaminated living environment areas.
Presently, as a method for solving such a problem, an iron plate, a sheet or a mat in which powders or particles of heavy metal are integrated with rubber or resin as an additive are laminated to obtain a radiation shielding effect (for example, patents Reference 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 with heavy equipment on the place where radiation is radiated is selected. It is also known to install a heavy structure as a wall around a place where radiation is emitted to reduce the radiation.

On the other hand, there is already a greening technology that contains 90% of the volume of soil (see, for example, Patent Documents 1, 2, and 3). This patent document technology verifies an evapotranspiration comparable to that of a forest and provides it for a heat island mitigation effect (verifies that the outside air temperature of the rooftop turf 50 cm above the ground in summer is reduced by 1° C.). In addition, the effect of storing heavy rainfall, which frequently occurs due to the amount of water reserves in the green areas, is remarkable. Furthermore, a lawn in which water does not seep out on the lawn surface when the soil is saturated with water content is suitable for a stadium. In addition, wood, herbs and crops can all be produced by forcing. For example, high trees of Yae Beni weeping cherry trees have been planted on ships and are growing steadily. Further, for example, the length of spinach grown without pesticide has grown to 150 cm. As described above, it has been clarified that the above-mentioned patent document technology is an exceptional technology. In this greening technology, the water consumption of the plant is small because the soil structure also has an aeration environment, a carbon environment, a trace element fertilizer environment, and a drainage environment suitable for the roots of the plant to grow. Absent. The water content of soil is also affected by the evapotranspiration of leaves, and the decrease of water content in the soil is remarkable in summer. Considering the radiation transmission reduction effect, due to the water content of the greening technology, for example, when the soil thickness is 12 cm, the soil and the underdrain base material and the activated carbon adhering water permeable sheet, the mass and water retention of the turf grass sod. The total weight of water saturated with soil is 167 kg/m ² (100 l saturated with water), which makes it possible to design a turf grass green space structure. It is generally accepted by 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 lawn on a midsummer day is at least about 5 to 7 l/day of m ² is consumed by evapotranspiration, that is, the water content of the culture soil excellent in water retention described above is 14 Turfgrass will consume the soil water content in a day or 20 days. During this water consumption there will be more water in the soil but in the absence of precipitation the water content of the soil will decrease daily, ie The water consumption of the soil will reduce the load on the soil and increase the transmittance of radiation.In order to make the transmittance constant and to prevent the grass from wilting or dying, it is essential to supply water to the grass. Become. In addition, it is possible to introduce a general soil other than the water-retaining soil described in the patent document, increase the thickness of the soil by creating the soil, and increase the weight, but accidents at past nuclear power plants Even in this case, it is not realistic to bring in a large amount of soil material that is not contaminated with radioactive materials, because it requires transportation from a remote place without contamination. In addition, the transportation cost is high and it is difficult to introduce. Further, since the water content and the soil load are increased by using a large amount of the 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 maintain the radiation transmission reduction rate at a value as close as possible to 100%, it is essential to keep the soil weight and soil water content constant in order to maintain the reduction of radiation transmission. is there. 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 being lost. In addition, in order to obtain the radiation transmission reduction effect that should correspond to the radiation emission of cesium, which has a long physical half-life of 30 years, at least the dose transmission reduction that should cope with the dose emitted by cesium over the half-life period is required. Requires a substrate and soil structure with effective soil water content and physical functions to prevent radioactive material dispersal and flow.
However, it is difficult for a person skilled in the art to create an inexpensive soil having a high water content necessary for reducing radiation transmission and a soil having a constant water amount more than a certain amount necessary for stable growth of plants. It was Further, it has been difficult for those skilled in the art to create a structure including a liquid phase portion and a gas phase portion that maintains 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 immobilization and shielding of radioactive materials, which is the area of physics, and because the fields related to plant cultivation 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 JP, 2013-79845, A

INDUSTRIAL APPLICABILITY The present invention accumulates in decontamination work on a land having a relatively high concentration of radiation, a garden, a schoolyard, a ground or lawn of a stadium, farmland, concrete, asphalt, a wall of a building, a slope, a roof, and the like. Installed on and around the generated waste, as a free-standing wall structure, or on a garden, schoolyard, stadium ground or lawn, on farmland, forest, building wall, ceiling, roof top. Cultivate plants by making green spaces or by arranging walls on and around the boundary land of the adjacent land facing the land and buildings with relatively high concentration of radiation and the waste accumulated in the decontamination work. An object of the present invention is to provide a radiation protection green space and a radioactive material diffusion preventive green space structure using it, which is a constituent material for reducing radiation transmission and which is suitable for being installed inside the rainwater infiltration masu and in the gutter. ..

The first invention is that, after radioactive material is diffused from a nuclear power plant or a plant that handles radioactive substances, pollution caused by the diffused radioactive substances is conspicuous in a wide area inside or outside the plant. It is provided in the place where it appears and in its vicinity,
A region including a plurality of ribs and at least one front thin plate and a back thin plate laminated via the plurality of ribs, sandwiched between the front thin plate and the back thin plate, and excluding the plurality of ribs; Water-containing space in the hollow region of the hollow rib, or a hollow plate-like body forming a water phase and a water-containing space, the water-holding base material filled in the water-containing space, or in the water-containing space It is a radiation transmission reduction component base material provided with the filled water retention base material and a vapor phase part.

In the radiation-transmission-reducing constituent substrate of the second invention, the water-containing space or the peripheral portion of the vapor phase portion is closed or partially closed, and the surface thin plate has the water-containing portion. The radiation transmission reduction component substrate 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 component base material of the third invention comprises a hollow plate-shaped 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 rib includes a plurality of plate-shaped ribs arranged substantially parallel to each other, at least one end of the water-containing space located at the longitudinal end of the plurality of plate-shaped ribs is closed, the plurality of The through hole is the radiation transmission reducing component base material according to the second aspect of the invention, which includes a band-shaped through hole formed so as to intersect the plurality of plate-shaped ribs.

In the radiation transmission reducing component base material of the fourth invention, the plurality of ribs includes four or more plate-shaped ribs arranged so as to be alternately inclined in opposite directions. 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 that is formed so as to intersect the plurality of plate-shaped ribs. It is a radiation-transmission-reducing constituent substrate of the second invention.

In the radiation transmission reducing component substrate of the fifth invention, the plurality of ribs include hollow ribs, and the water-containing space also includes the inner spaces of the plurality of through holes. The radiation-transmission-reducing constituent substrate according to any one of the inventions.

The radiation transmission reducing component base material of the sixth invention is the radiation transmission reducing component base material of the fifth invention, wherein the hollow rib is formed with a hole for communicating the inside and outside of the rib.

The radiation transmission reducing component base material of the seventh invention, the one or more through-holes formed in the surface thin plate partially include one or more planting holes having a diameter of 30 mm to 180 mm, the second to sixth. The radiation-transmission-reducing constituent substrate according to any one of the inventions.

A radiation transmission reducing component substrate of an eighth invention is a plurality of water shields having a main surface, a fixing member for fixing the plurality of water shields so that their main surfaces face each other, and the plurality of water shields. A water retention base material sandwiched between water bodies, and a water transmission pipe or a hollow plate may be provided in a part of the water retention base material.

The radiation transmission reducing component base material of the ninth invention is a plate body 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-shaped body that is installed substantially in parallel and in which a drainage channel is formed, or a hollow formed by laminating a back thin plate and a front thin plate having a plurality of through holes through a plurality of ribs. The rib is a plate-shaped body, a plurality of plate-shaped bodies are installed substantially parallel to each other to form a drainage channel, the through hole is a band-shaped through hole, and the plurality of band-shaped through holes are the plate. A base material for reducing radiation transmission, which has a structure of an underdrain plate which is formed by intersecting a strip.

In the radiation transmission reducing component base material of the tenth invention, the back thin plate and the front thin plate having a plurality of through holes are formed into a large number of columnar shapes, cylindrical shapes, prismatic shapes, truncated cone shapes, truncated pyramid shapes, It is composed of a hollow plate-shaped body laminated via any one of annular ribs, characterized in that a drainage channel is formed between the front thin plate, the back thin plate and any one of the ribs. Radiation transmission reducing constituent substrate.

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

The radiation transmission reducing component base material of the twelfth invention is characterized in that the through-hole is a hollow plate-shaped body having a band-shaped through-hole, and the ribs include a honeycomb shape and a lattice shape. 11 is a radiation-transmission-reducing constituent substrate according to the invention of FIG.

The radiation transmission reducing component substrate of the thirteenth invention is a non-woven fabric, a carbon fiber woven fabric, a glass fiber woven fabric, a rubber sheet formed by mixing an additive with rubber, a resin sheet formed by mixing an additive with a resin, a resin plate, A metal plate, a concrete plate, and the plate body which laminated|stacked the heat insulating material and the aluminum plate, and is further provided with the laminated body bonded to the outer surface of either the said front thin plate and the said back thin plate. The radiation transmission reducing component base material of the first to twelfth inventions characterized by

The radiation transmission reducing component base material of the fourteenth invention is such that both end portions or peripheral portions of the drainage channel are closed or are partially left closed so that the drainage channel can store water and overflow water can be stored in the drainage channel. The radiation-transmission-reducing component base material according to the ninth to thirteenth inventions is characterized in that drainage can be carried out from a part of or through holes through the ribs at the ends.

The radiation transmission reducing component base material of the fifteenth invention is the radiation transmission component of any one of the ninth to fourteenth inventions on the surface thin plate or the water shield of the radiation transmission reduction component base material of any of the first to eighth inventions. A radiation-transmissive low-constituent substrate characterized in that reduced constituent substrates are laminated.

The radiation transmission reducing component substrate of the sixteenth invention is such that at least one of the plurality of ribs, the front thin plate and the back thin plate is fitted with the same other radiation transmission reducing component substrate. The radiation transmission reducing component substrate according to any one of the first to fifteenth inventions, which includes a fitting portion that enables connection with another radiation transmission reducing component substrate.

The radiation transmission reducing component substrate of the seventeenth invention comprises a vertical wall having a through hole or a vertical wall having no through hole, and a joint having a sectional shape of 1 type or a right angled portion hollow L type, A radiation transmission reducing component substrate, characterized in that the radiation transmission reducing component substrate according to any one of the first to fifteenth inventions is connected to form a large plate.

A radiation transmission reducing component base material of an eighteenth invention is a surface thin plate of the radiation transmission reducing component base material of any one of the first to seventeenth inventions, which has a shape of a saw, a corrugated plate, an irregular shape, a box, a rectangular parallelepiped, a cube. Alternatively, it is a radiation-transmission-reducing component base material that is a trough-like structure and is formed by stacking a dark conduit body or a molded body having through holes formed in the thickness direction.

The radiation transmission reducing component base material of the nineteenth aspect of the invention is a non-woven fabric and/or ultrafine granular activated carbon attached to the front thin plate side or the back thin plate side of the radiation transmission reducing component base material of any of the first to eighteenth aspects, or A radiation-transmission-reducing constituent substrate characterized in that impregnated nonwoven fabrics are laminated or laminated.

The radiation transmission reducing component base material of the twentieth invention has a net body 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 reducing component base material of any of the first to nineteenth inventions. It is a base material for reducing radiation transmission.

The radiation transmission reducing component base material of the twenty-first invention is provided on the front thin plate side, the back thin plate side, or the front and back thin plate side of the thin plate side of the radiation transmission reducing component base material of any one of the first to twenty inventions. A radiation transmission reducing structure characterized in that a sheet of non-woven fabric is joined in a grid 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 reducing component base material of the twenty-second invention is the radiation transmission reducing component base material of the twenty-first invention, wherein at least one nonwoven fabric is adhered or impregnated with ultrafine particle activated carbon.

The radiation transmission reducing component substrate of the twenty-third aspect of the invention is characterized in that the rock wool fiber or a molded body thereof is laminated on the surface thin plate side of the radiation transmission reducing component substrate of any one of the first to twenty second aspects. The base material for reducing radiation transmission.

In the radiation-transmission-reducing component base material of the twenty-fourth invention, the rock wool fiber molding 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. Furthermore, a form in which a hexagonal wire mesh is bonded to the surface of the rock wool fiber molded product, a form in which the surface of the molded product is covered with glass cloth, and an aluminum foil and a glass fiber sheet are bonded to the surface of the molded product. Contains rockwool fiber in the form of laminated aluminum cloth,
The peripheral edge of the radioactive substance adsorption sheet according to the twenty-first or twenty-second aspect of the present invention is a bag body formed into a bag body that is closed or is left with a partial opening, A radiation-transmission-reducing constituent substrate, characterized in that it is filled as a water-retaining substrate or a void-retaining substrate.

The radiation transmission reducing component substrate of the twenty-fifth aspect of the present invention is at least one of a water-blocking sheet, a moisture-proof film, and a two-layer sheet in which a moisture-proof film and a water-blocking sheet are laminated, and a peripheral edge portion thereof is closed or partially The rock wool molded product of the twenty-fourth invention or the seventy-first, seventy-two, or seventy-fourth invention inside the bag form which is closed leaving an opening, or the bag form in which a plurality of holes are formed in the water-blocking sheet and the moisture-proof film. The radiation-transmission-reducing constituent base material in the form of being filled with the water-retaining base material of any one of the inventions.

The radiation transmission reducing component substrate according to the twenty-sixth aspect of the present invention is the radiation transmission reducing component substrate according to the twenty-fifth aspect, wherein the radiation transmission reducing component substrate is provided on the upper surface of a portion contaminated with a radioactive substance. A radiation-transmission-reducing component substrate, characterized in that the radiation-transmission-reducing component substrate according to any one of the first to twenty-second inventions is laminated on the upper surface of the component substrate.

The radiation transmission reducing component base material of the twenty-seventh invention is the radiation transmission reducing component base material of the twenty-third or twenty-fourth invention in which a recess or a through hole is formed in a molded product of rockwool fiber.

The radiation transmission reducing component base material of the twenty-eighth invention is characterized in that the side wall is erected at the end of the radiation transmission reducing component base material of any one of the first to twenty-third inventions to form a box shape. It is a reduced component base material.

The radiation transmission reducing component base material of the twenty-ninth invention is formed by bending the radiation transmission reducing component base material of any one of the first to twenty-third inventions or by arranging side walls upright at both ends of the radiation transmission reduction component base material. The radiation transmission reducing component base material is characterized in that it is formed into a groove shape.

A radiation transmission reducing component base material according to a thirtieth invention is the radiation transmission reducing component base material according to any one of the first to twenty third inventions, wherein a large number of through holes are formed in the back thin plate.

The structure relating to the radiation transmission reduction of the thirty-first invention uses the radiation transmission reduction component substrate in which a soil layer is laminated on the upper surface of the radiation transmission reduction component substrate of any one of the first to thirtieth inventions. Radiation protection green space and measures to prevent radioactive material diffusion It is a green space structure.

A structure related to radiation transmission reduction of a thirty-second invention is a radiation transmission reduction constituent base material of the thirty-first invention in which turfgrass is planted in a soil layer, and a radiation protection green space and a radioactive substance diffusion prevention measure green space using the same. It is a structure.

A structure related to reduction of radiation transmission of a thirty-third invention further comprises rock wool fibers or a molded body thereof and an soil layer alternately laminated on a soil layer, and the uppermost surface thereof is a rock wool fiber or a molded body or soil thereof. A layer for reducing radiation transmission according to the thirty-first or thirty-second aspect of the present invention, which is a layer, is a greening structure for radiation protection and radioactive material diffusion prevention using the same.

A structure related to radiation transmission reduction according to a thirty-fourth aspect of the present invention has a large number of through holes or band-like through holes between rock wool fibers or a molded body thereof and a soil layer, in rock wool fibers or a molded body thereof or a soil layer. A thirty-third aspect of the present invention in which a hollow plate-shaped body is formed by laminating a perforated surface thin plate and a back thin plate in which a large number of through holes or band-shaped through holes are formed through a plurality of ribs. Radiation transmission reducing constituent base material A radiation protection green space and a radioactive material diffusion preventing green space structure using the same.

The structure for reducing radiation transmission according to the thirty-fifth aspect of the invention is characterized in that grass grass is planted on the surface of rockwool fiber, a molded body thereof, or a soil layer. Base material It is a greening structure for radiation protection green space and radioactive material diffusion prevention measures using it.

A radiation transmission reducing component substrate of a thirty-sixth invention is an asphalt, a tile, a brick, a concrete, a roof tile, a stone material, an artificial stone material, a rubber block, on the upper surface of the radiation transmission reducing component substrate of any one of the first to thirty-first inventions. A radiation-transmission-reducing constituent substrate characterized by being laminated with either a rubber sheet or a wood construction member.

The radiation-transmission-reducing constituent substrate of the thirty-seventh aspect of the present invention is a rooftop, a balcony, a terrace, or a wall of a building, on which a waterproof layer is formed, from the first through a heat insulating layer. 36 or a radiation transmission reducing constituent substrate of any one of the inventions of 50 to 53 is laminated.

The radiation transmission reducing component base material of the thirty-eighth invention is any one of the first to thirty-sixth or fifty-thirty-third parts on a frame having a waterproof layer formed on any of a rooftop, a roof, a balcony, a terrace and a wall of a building. The radiation-transmission-reducing component base material of the invention is laminated.

In the radiation transmission reducing component base material of the thirty-ninth invention, a heat insulating material layer is a hollow in which a front thin plate and a back thin plate are laminated via a plurality of plate ribs, and a gas passage is formed by the plate ribs. The radiation transmission reducing component substrate according to the thirty-seventh invention, which is a plate-like body.

The radiation-transmission-reducing constituent base material of the fortieth invention is a seed-adhering biodegradation in which a plant seed is adhered between a biodegradable sheet or a polyethylene film having a plurality of pores and an overlay sheet to be converted into a soil state in a short time. Sewn or bonded at least one of a flexible sheet, a non-woven fabric in which at least one non-woven fabric is attached or impregnated with ultrafine-grain activated carbon, and a paper sheet in which at least one paper is attached or impregnated with zeolite Then, the radiation-transmission-reducing constituent base material is formed as a bag body, and the water-containing space inside the bag body is filled with rock wool or a water-retaining base material.

The radiation transmission reducing component base material of the forty-first invention is such that plant seeds are mixed between an area serving as an upper surface of the water retention base material and an area serving as an upper surface of the bag body when placed on the ground. It is a radiation-transmission-reducing constituent base material according to the fortieth invention, which is provided with a soil layer.

The radiation transmission reducing component base material of the forty-second invention is such that, when placed on the ground, the area serving as the upper surface of the water retention base material of the fortieth invention, the area of the soil layer, and the upper surface of the bag body are made of wood. Alternatively, the radiation transmission reducing component base material according to the 40th or 41th aspect of the invention, wherein at least one or more through holes for planting a herb or a planting portion that is linearly cut is formed.

The radiation transmission reducing component base material of the forty-third aspect of the invention is such that the surface is uneven and a part of the peripheral portions of two or more water-permeable resin sheets that are stacked on each other is left as a water injection port, and the remaining portion of the peripheral portion is left. A radiation-transmission-reducing component base material, characterized in that the water-retaining base material is filled in the water-containing space inside the bag body formed by joining the.

The structure relating to the radiation transmission reduction of the 44th invention is a radiation formed by laminating the radiation transmission reduction component of any one of the 40th to 42th inventions on the upper surface of the radiation transmission reduction component of the 43rd invention. Permeation-reducing constituent base material Radiation protection green space and radioactive material diffusion prevention green space structure using it.

A structure relating to a radiation transmission reduction of the 45th invention comprises the radiation transmission reduction constituent substrate of any one of the 40th to 43th inventions on the radiation transmission reduction constituent substrate of any of the 1st to 25th inventions. A radiation protection green space and a radioactive material diffusion preventing green space structure using the base material for reducing radiation transmission characterized by being laminated.

The radiation transmission reducing component base material of the forty-sixth invention further comprises a drain pipe having a side wall in which an opening is formed, and the peripheral portion of the water-containing space or the drainage channel is closed with a part left, The water distribution pipe is connected to the hollow plate-like body so that the part of the peripheral edge portion of the water-containing space or drainage channel communicates with the opening portion. Radiation transmission reduction constituent base material.

The radiation transmission reducing component base material of the forty-seventh invention further comprises an irrigation pipe having a side wall in which rows of through holes are formed along the longitudinal direction, wherein the irrigation tube has the rows of through holes in the water-containing space. The radiation transmission reducing component substrate according to any one of the first to seventeenth inventions, which is connected to the hollow plate-like body so as to communicate with the whole or the drainage channel.

A structure related to radiation transmission reduction of a forty-eighth invention has the radiation transmission reduction component substrate of any one of the first to twentieth inventions, and is an upright or inclined wall body and one of the upright wall bodies. Surface or the upper surface of the slanted wall body, and at least one non-woven fabric is provided with any one of activated carbon, a water-absorbent resin, and a desiccant, or activated carbon, a water-absorbent resin, and a desiccant attached or impregnated with water. Sheet layer, laminated on the outer main surface of the water-permeable and water-permeable sheet, rock wool layer, or rock wool cultivation soil layer in which rock wool and soil are mixed, and the rock wool layer or rock wool cultivation soil layer Of another rock wool layer or a resin plate layer having a water repellent function, which is laminated on the outer main surface of the plant and has a large number of through holes as planting parts, and the outside of the other rock wool or the resin plate. Laminated on the main surface, a portion to be cut as a planting site, or a non-combustible or flame-retardant base material layer having a through hole opened, and each layer from the water-retaining and water-permeable sheet layer to the base material layer. Is a radiation-transmission-reducing constituent base material that is integrated by a fixture, and is a radiation-protection green space and a radioactive material diffusion prevention measure green space structure.

A structure related to radiation transmission reduction according to a forty-ninth invention further comprises a plant planted in the through hole of the base material layer, and a radiation transmission-reducing green space using the radiation transmission-reducing constituent base material for the same according to the 48th invention. Measures to prevent radioactive material diffusion It is a greened structure.

A structure relating to reduction of radiation transmission according to a fiftieth invention, wherein a front thin plate and a back thin plate have a plurality of plate-like, cylindrical, frustoconical, honeycomb-shaped, prismatic, pyramidal-frustum-shaped, or grid-shaped ribs. Any one of a hollow plate-shaped body, a resin plate, a resin sheet, and a rubber sheet, which are laminated via the above, or a culvert on the upper surface of the radiation transmission reducing component base material according to any one of the first to seventeenth inventions. The plate-shaped, box-shaped, gutter-shaped, saw-shaped, uneven, sponge-shaped or corrugated plate-shaped, the thickness of 0.03 mm or more, the basis weight is on the upper surface of the base material having a plurality of through holes. Non-woven fabric of 10 g/m 2 or more/or non-woven fabric on which activated carbon is adhered or impregnated, two non-woven fabrics are joined in a lattice, and a fertilizer or a mixture of fertilizer and activated carbon is enclosed between the upper and lower non-woven fabrics of the generated lattice. Of at least one of the plant-growing sheets formed of the above is laminated on its upper surface with a grain-shaped molded body made of rock wool fiber having a density of 25 kg/m 3 or more, and further a soil layer is laminated on the upper surface of the rock wool fiber. This is a radiation protection green space and a radioactive material diffusion prevention measure green space structure using the same.

The structure relating to the reduction of radiation transmission of the fifty-first invention is a rib in which a front thin plate and a back thin plate have a plurality of plate shapes, cylindrical shapes, truncated cone shapes, honeycomb shapes, prismatic shapes, truncated pyramid shapes, and lattice shapes. Any one of a hollow plate-shaped body, a resin plate, a resin sheet, and a rubber sheet, which are laminated via the above, or a culvert on the upper surface of the radiation transmission reducing component base material according to any one of the first to seventeenth inventions. The plate-shaped, box-shaped, gutter-shaped, saw-shaped, uneven, sponge-shaped or corrugated plate-shaped, the thickness of 0.03 mm or more, the basis weight is on the upper surface of the base material having a plurality of through holes. Non-woven fabric of 10 g/m 2 or more/or non-woven fabric on which activated carbon is adhered or impregnated, two non-woven fabrics are joined in a lattice, and a fertilizer or a mixture of fertilizer and activated carbon is enclosed between the upper and lower non-woven fabrics of the generated lattice. A radiation-transmission-reducing constituent base material in which a soil layer containing fertilizer, mulch, minerals, and rockwool fibers is laminated on top of at least one of the plant growing sheets Measures to prevent diffusion Green structure.

The structure relating to the radiation transmission reduction of the 52nd invention is the radiation transmission reduction configuration of the 50th or 51th invention on the upper surface of the radiation transmission reduction configuration substrate of any one of the 1st to 17th or 24th, 25th and 43th inventions. Base material Radiation protection green space and radioactive material diffusion prevention measures using it Green space Radiation reduction constituent characterized by stacking structures Radiation protection green space and radioactive material diffusion prevention green space using it It is a structure.

The radiation-transmission-reducing constituent substrate of the fifty-third invention is a sheet in which activated carbon is adhered or impregnated between at least one non-woven fabric and paper, between paper and wafer sheet, non-woven fabric or paper, or at least one. Activated carbon is adhered or impregnated between the biodegradable fiber and the wafer sheet, and the activated carbon having the non-woven fabric and paper, the paper and the wafer sheet, the nonwoven fabric, the paper, and the biodegradable fiber and the wafer sheet is substantially the same. A substrate for reducing radiation transmission, which is characterized in that it is an adsorption sheet having an ultrafine-grained activated carbon having a particle size of 990 μm or less.

The radiation transmission reducing component base material of the fifty-fourth invention is formed by joining either one of the plurality of radioactive material adsorption sheets of the fifty-third invention or two non-woven fabrics in a grid shape, and between the upper and lower non-woven fabrics of the generated grid. And a mixture of zeolite and activated carbon is encapsulated in the above, and the radiation transmission reducing component has a characteristic of an adsorption sheet form in which the zeolite and the activated carbon are in the form of ultrafine particles having a particle size of 990 μm or less.

The radiation transmission reducing component base material of the fifty-fifth aspect of the invention is a wound object in which a water retention base material is placed on one main surface of the adsorption sheet of the fifty-third or fifty-fourth aspect of the invention and the sheet end surface is wound in a spiral shape. The radiation transmission-reducing component base material, characterized in that the end portion or the vicinity of the end portion of the rolled object is closed with a part left.

The radiation-transmission-reducing constituent substrate of the 56th invention is carbon fiber, glass fiber woven fabric, resin fiber woven fabric, non-woven fabric, resin film, paper, activated carbon bonded sheet formed by adhering or impregnating activated carbon, and rubber mixed with additives. A rubber sheet, a resin sheet obtained by mixing an additive with a resin, a resin sheet, and an aluminum adhesive sheet having one main surface coated with a resin, or a single sheet of these. In one main surface of the laminated sheet formed by laminating a plurality of sheets, the water retention base material is placed in the one side region from the substantially center line position, and the other side region faces the one side region and overlaps with each other. Radiation transmission as one sheet or a laminated sheet obtained by folding the one side region and the one side region and the other side region to be a joining sheet formed by joining the one side region and the other side region along the edge of the water-retaining base material or along the outside of the edge. It is a reduced component base material.

A radiation transmission reduction container of the 57th invention is
An outer container with a bottom or a bottom,
A bottomed or non-bottomed inner container arranged inside the outer container so that the side wall and the bottom part recede inward from the outer container;
A radiation transmission reducing container, comprising: a water retention base material filled in a gap between the outer container and the inner container.

A radiation transmission reducing container of a fifty-eighth invention is an outer container described in the fifty-seventh invention having no bottom, and an inner container made of a net disposed inside the bottomless container, or an inner bag body,
A radiation transmission reducing container comprising: activated carbon filled in a gap between the outer container and an inner container made of the net or the inner bag, or a water retention base material.

The radiation transmission reduction container of the fifty-ninth invention is the radiation transmission reduction container of the fifty-eighth invention, in which the outer container is low.

A radiation transmission reducing container according to a 60th aspect of the present invention is an inner bag body arranged inside the outer bag body so as to recede inside the outer bag body,
A radiation transmission reducing container comprising: a water-retaining base material filled in a gap between the outer bag body and the inner bag body.

The radiation transmission reducing container of the sixty-first invention is characterized in that any one of an annulus, a honeycomb plate body, a lattice plate body and a rectangular hollow body is attached to a region of a bottom surface of the inner container or the inner bag body, The radiation transmission reduction container according to any one of the 57th to 60th inventions, which comprises a band, a honeycomb plate body, a lattice plate body, and a water retaining base material in a rib inner region of a rectangular hollow body.

The radiation transmission reduction container of the 62nd invention is any one of the 57th to 61st embodiments, wherein the inside of the inner bag or the inner container is filled with a radioactive substance, or an object that emits radiation by being contaminated with the radioactive substance. A radiation transmission reducing container according to the invention.

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

A radiation transmission reducing container of a sixty-fourth invention is a bottomed or unbottomed outer container, or a bottomed or unbottomed inner container divided into a plurality of parts, and a container end portion of the plurality of divided shapes is formed. The radiation transmission reduction container according to any one of 57th to 63rd features that is fixed by a fixing member to form the bottomed or bottomed outer container or the bottomed or bottomless inner container.

A radiation transmission reducing container according to a sixty-fifth aspect of the present invention has a through hole or a notch from the upper end formed in an 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. 57. The radiation transmission reducing container according to the 57th to 64th inventions, further comprising an irrigation pipe that opens into the gap between and.

The radiation transmission reduction container of the sixty-sixth invention further comprises a hanging string attached to the outer container or the outer bag body. container.

The radiation transmission reduction container of the sixty-seventh invention is the radiation transmission reduction container of any one of the fifty-seventh to sixty-sixth inventions, further comprising a lid that covers the upper portion of the outer container.

A radiation transmission reducing lid according to a 68th aspect of the invention, wherein the lid covering the upper portion of the outer container has a water-containing space, and the water-containing space is filled with activated carbon or a water retention base material. Reduced lid.

The radiation transmission reducing component container of the sixty-ninth invention is a radiation transmission reducing component container in which the water retention base material described in the fifty-seventh to sixty-eighth inventions is the radiation transmission reducing component base material of the seventy-first, seventy-two or seventy-fourth invention.

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

In the radiation-transmission-reducing constituent substrate of the seventy-first invention, the water-retaining substrate 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, Ceramic fiber, ceramic fiber molding, carbon fiber, paper, newspaper, paperboard, super absorbent polymer resin, humus, non-woven fabric, cloth, cotton, plant fine powder, grain, salt, sweetener, wood, soil, wax , Pulp, fine mineral powder, seaweed fine powder, algae, blast furnace slag fine powder, steel slag, sand, sodium chloride, barium, fertilizer, feed, rot, volcanic ash, barium sulfate colloidal solution, paraffin, cellulose, activated carbon, charcoal , Stucco, cement, color sand, mineral, sponge, desiccant, pigment, Sakuran (suisenjinori), preservative, resin pellet, resin, non-woven fabric in which fiber is attached or impregnated with super absorbent polymer resin, at least one sheet The non-woven fabric according to any one of 1 to 70 or 73, 75 to 90, which is at least one of non-woven fabric or fiber in which fine carbon particles having a particle size of 1200 μm or less are adhered or impregnated. It is a radiation-transmission-reducing constituent substrate of the invention.

The radiation-transmission-reducing constituent substrate of the 72nd invention is that the mineral fiber molded body is a rock wool granular cotton or a rock wool granular cotton perforated bag package, a rock wool plate-shaped body or a rock wool plate-shaped perforated bag. Packing body, rock wool felt or rock wool felt perforated bag packing body, and the radiation transmission reducing component substrate according to the 71st invention, wherein the glass fiber is glass wool

The radiation-transmission-reducing constituent substrate of the 73rd invention is a polyethylene resin sheet or a bag made of a polyethylene resin film, and a polyethylene resin sheet having a polyethylene resin sheet on the front surface and a plurality of holes on the back surface. A radiation transmission reducing structure in which any one of the bag bodies having a layered structure is filled with the water retention base material of the invention of either the 71st or 72nd aspect, and at least one or more water injection ports are opened in the bag body. Base material.

The radiation-transmission-reducing constituent base material of the seventy-fourth invention is the water-retaining base material, wherein a shape stabilizer (polyethylene glycol), oil, molybdic acid aqueous solution, barium sulfate colloidal solution, epoxy resin, sodium tungstate, gel-like liquid, varnish. , Ethanol, a surfactant, a fluorine-based surfactant, or a solution having a large mass is injected into the water-retaining substrate, and the radiation-transmission-reducing constituent substrate according to any one of the inventions 1 to 73 or 75 to 90.

A radiation transmission reducing structure of a seventy-fifth aspect of the invention is a row of cavities penetrating from one main surface to the other main surface of the rectangular parallelepiped, and both ends of the rectangular parallelepiped in the arrangement direction of the row of the cavities, which correspond to half of the cavities. A container having a recess, having a concrete block-like outer shape, and having a water injection port,
And a water retention base material filled in the container.

The radiation transmission reducing composite structure according to the seventy-sixth aspect of the invention is the seventy-fifth aspect of the present invention, in which a plurality of rows are arranged in the array direction of the rows of the cavities and in the axial direction of the rows of the cavities to form a wall body. A plurality of radiation transmission reducing structures,
At least a part of the row of cavities and the recess of each of the plurality of radiation transmission reduction structures is inserted, and is inserted over the plurality of radiation transmission reduction structures arranged in the axial direction of the row of cavities. With multiple muscles arranged to
A mixture of a water-retaining base material and water or a mixture of a water-retaining base material and a bonding agent filling the row of the cavities and the recess of each of the plurality of radiation transmission reducing structures. It is a composite structure for reducing radiation transmission.

A radiation transmission reducing composite structure according to a 77th invention is the radiation transmission reducing structure according to any one of the 55th, 56th or 70th to 76th inventions,
Radiation transmission reduction characterized by comprising a weather-resistant and water-impervious storage container or an impervious, flame-retardant and water-impervious storage container for accommodating and sealing the radiation transmission reduction structure and water. It is a composite structure.

In a radiation-transmission-reducing constituent base material and a composite structure according to a 78th invention, the water-retaining base material formed in the radiation-transmission-reducing constituent base material according to any one of the first to 77th inventions is the water-containing space or container or bag. A radiation-transmission-reducing constituent substrate and a radiation-transmission-reducing composite structure, wherein the water-retaining substrate is filled with water and then the water-retaining substrate is filled with water to contain the water-retaining substrate.

A radiation transmission reducing wall structure according to the 79th invention is a concrete foundation,
A plurality of columns that are erected on the concrete foundation at intervals, and among the plurality of columns, a plurality of wire ropes having bolts fixed to both ends that are bridged between adjacent columns,
At least one radiation transmission reducing component substrate or radiation transmission reducing composite structure attached to the wire rope;
The radiation transmission reduction structure is the radiation transmission reduction structure according to any one of the first to twenty-fourth inventions, and the radiation transmission reduction composite structure is the 48th, 49th, 56th or 70th to 76th. A radiation transmission reducing wall structure which is the radiation transmission reducing composite structure according to any of the inventions.

A radiation transmission reducing wall structure according to the 80th aspect of the present invention, wherein a plate material or a non-combustible sheet or a flameproof sheet laminated to form a container and a netproof flame sheet formed by laminating a net material, and the inside of the container are filled. A water-retaining base material or a water-retaining base material and a gas phase body,
A radiation transmission reducing wall structure, wherein the plate material or the anti-flame sheet has a through hole or a notch that enables planting or water injection.

The radiation transmission reducing wall structure of the eighty-first invention, wherein the container has an inclined surface, and a strip-shaped through hole extending substantially horizontally is formed in a region of the plate member forming the inclined surface. A radiation transmission reduced wall structure of the invention.

The radiation transmission reducing wall structure of the eighty-second invention is further provided with a skeleton that is installed inside the container and that holds the shape of the plate material or the mesh-flame-proof sheet as the container. Permeation reduction wall structure.

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

In the radiation transmission reducing wall structure of the eighty-fourth invention, the plate material is a hollow plate-shaped body in at least a partial region,
The hollow plate-like body is a radiation transmission reducing wall structure according to any one of the 80th to 83rd inventions, which includes 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 eighty-fifth aspect of the present invention is a partial bottom region inside the container, a partial lower region of a frame base material installed inside the container, and a lower surface of a bottom plate member arranged in the container. The hollow plate-shaped body substrate, the metal substrate, the concrete substrate, the stone substrate, the resin substrate, the mineral substrate according to the eighth to tenth inventions or the 84th invention in any of the partial regions or the outside of the region. Any of the frame base material or the bottom plate material and the hollow plate-shaped base material, the metal base material, the concrete base material, the stone base material, the resin base material, and the mineral base material that are formed by arranging any of the materials. The radiation transmission reducing wall structure according to any one of the 80th to 84th inventions, which can be provided by being joined with or joined with or by a fixing member.

The radiation transmission reducing wall structure of the eighty-sixth invention is any of the 80th to 85th, wherein at least two of the radiation transmission reducing wall structures are connected to a side surface of the same other radiation transmission reducing wall structure. Of the invention of claim 1.

A radiation transmission reducing constituent substrate of the eighty-seventh invention is a micro-changing shape containing activated carbon in a partial void area inside any of a fiber molded body, a glass fiber molded body and a ceramic fiber molded body which are mainly made of blast furnace slag. A fiber molding filled with any one of carbon, zeolite, and a mixture of finely divided carbon containing zeolite and activated carbon.
A base material for reducing radiation transmission, wherein the activated carbon and zeolite have a particle size of 1100 μm or less, and a resin is attached to or impregnated with a resin of the fiber molded body to form a water shield.

The radiation transmission reducing constituent substrate of the eighty-eighth 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, which are packaged in a water-blocking sheet obtained by pressure-bonding or laminating at least two of any of the above-mentioned base materials, or packaged in a bag made of the water-blocking sheet. A fixing member for fixing so that
The fibrous molded body having innumerable minute voids in the gas phase body and the liquid phase body having at least one water injection port in the water-blocking sheet covering the liquid phase body are 71st, 72nd or 74. A radiation-transmission-reducing component base material, comprising the water-retaining base material according to any one of the 74th inventions.

A radiation transmission reducing component base material, a radiation transmission reducing container, a radiation transmission reducing structure body and a radiation transmission reducing component base material of the eighty-ninth invention. After radioactive materials are diffused from business establishments or business establishments that handle radioactive materials,
In a wide area inside or outside the business site, the radioactive substances that are diffused and are in a stationary state due to attachment or precipitation, etc. at various places, and the objects to which the radioactive substances are attached or precipitated are decontaminated and placed. Storage area, storage facility, its surroundings, or radioactive materials that are statically attached or settled after the diffusion, forest, farmland, schoolyard, garden, garden, stadium, park, road slope, parking lot , Buildings, trees, irrigation canals, rainwater permeable basins, rainwater drainage basins, gutters that emit radiation caused by radioactive substances, and their vicinity, and underground storage facilities that store radioactive substances for many years. Alternatively, in the repository facility, any one of the inventions of 1 to 86 is a radiation reduction component base material, a radiation transmission reduction container, a radiation transmission reduction structure and a radiation transmission reduction component base material. And measures to prevent radioactive material diffusion The provision of a greening structure has the characteristic that the radioactive material can be fixed and the radiation dose can be reduced permanently.

The 90th invention is the radiation-transmission-reducing constituent substrate according to any one of the inventions 1 to 56, 71 to 79, the radiation protection green space and the radioactive radiation according to any one of the inventions 31 to 35, 44, 45, 48 to 52. Measures for Preventing Substance Diffusion A method for shielding radiation using a greened structure, the radiation transmission reduction container of any of the inventions of the 57th to 67th, 69th, or 70th or the lid of the 68th invention. ..

As described above, according to the radiation-transmission-reducing component base material and the radiation-transmission-reducing component base material of the present invention, the radiation-protecting green space and the radioactive material diffusion preventing measure green space structure can be used for the purpose of containing water by the function of the water-retaining base material. Water can be stored in the space, and the radiation reduction effect can be stably exhibited. The function of physically adsorbing the radiation substance on the carbon is also effective in preventing scattering. The cause of this effect is that the water-retaining base material is filled in the water-retaining space created from the structure of the front and back thin plates, the plurality of ribs, and the peripheral edge closing member, so the water-retaining base material is affected by the external force due to the load. It can maintain the static state without any change and keep the water content permanently. Furthermore, the water retention base material is not affected by changes in the water content due to the evaporation effect of the surrounding high temperature and heat environment, changes in the decomposition and reduction of the water retention base material by microorganisms, and changes in the 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 maintained, so that the radiation transmission reducing effect can be continuously exerted. Further, since water can be poured 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 a worker who carries a heavy object that exerts a radiation shielding effect that is conventionally provided.

In addition to the above-described factor of reducing the transmission of radiation, the factor of shielding of the invention that can be inferred is that the resin having a high density and the molded resin suppress electromagnetic waves of radiation.

In addition, a resin material having insulating properties and heat resistance, a rubber sheet obtained by pressure-bonding resin and rubber, and a fiber molded body produced by shaping the inorganic blast furnace slag generated when the main raw material is iron into a fiber shape have heat resistance. What is being done is to suppress the electromagnetic wave of radiation.

Since the vapor phase portion derived from the density of the thermoplastic resin and the fiber made of minerals and the carbon and the vapor phase portion are formed in a special shape, the vapor phase portion can maintain a static state without being affected by an external force. The factor that keeps the static state is to suppress the heat conduction of radiation.
Furthermore, a large amount of water, which is a compound of hydrogen and oxygen existing in a static state in the water-holding base material (liquid phase part), which is an aggregate of fibers made of minerals with a high water content, or a liquid with a large specific gravity, is in the gas phase part. It is conceivable to suppress the electromagnetic wave of radiation and heat conduction based on the structure integrated with.

In this way, the composite that keeps water and oxygen in a static state in addition to the property that electricity and heat are hard to pass is formed as a single body or the liquid phase part and the gas phase part of the present invention that are configured in appropriate places are formed in each structure. By doing so, it was predicted that the radiation shielding effect different from the radiation shielding effect caused by the load would increase significantly. Further, the hollow plate-shaped member having an air layer and the respective base materials of the present invention exert the radiation transmission reducing effect remarkably, but can be manufactured at low cost.

FIG. 1A is a perspective view showing a radiation transmission reducing component base material according to the first embodiment of the present invention. FIG. 1B is a perspective view in which the water-retaining base material and ribs are provided in the water-containing space of the first embodiment. FIG. 1C is a sectional view according to the first embodiment. FIG. 1D is a sectional view according to the first embodiment. FIG. 1E is a sectional view according to the first embodiment. FIG. 1F is a 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 a dotted line portion shown between (B) and (B) of the second embodiment is a sectional perspective view of (b) and (c). ) Is a cross-sectional view of FIG. FIG. 5A is a perspective view showing an example of the second embodiment of the present invention, and FIG. 5B is a sectional view of a dotted line portion shown between (A) and (A) of the third embodiment. is there. 6A is a perspective view in which a band-shaped through hole according to the third embodiment of the present invention is formed, and FIG. 6B is a perspective view of an example showing a partial configuration and structure of the third embodiment. .. 7A, 7B, and 7C are cross-sectional views showing the plate-shaped ribs of the fourth embodiment. FIG. 8 is a perspective view of Embodiment 5 of the present invention. FIG. 9 is a cross-sectional view taken along the dotted line between (a) and (a) of the perspective view shown in FIG. 8, (a) is a cross-sectional view of the fifth embodiment, and (b) is the embodiment. 6A and 6B are perspective views illustrating two ribs of the sixth embodiment. FIG. 10A is a perspective view showing the configuration of Embodiment 10 of the present invention and FIG. 10B of the present invention. FIG. 11: is a perspective view which shows one example which showed the one-part structure of Embodiment 7 of this invention. FIG. 12 is a perspective view (a) and a partial cross-sectional view (b) showing an example of Embodiment 9 of the present invention. FIG. 13A is a perspective view showing the configuration of an example of Embodiment 9 of the present invention. FIG. 13B is a partial cross-sectional view of FIG. FIG. 13C is a perspective view of an example of the eighth embodiment of the present invention. FIG. 13D is a cross-sectional view of another example of Embodiment 8 of the present invention. FIG. 13E is a cross-sectional view of another example of Embodiment 8 of the present invention. FIG. 13F is a perspective view of another example of Embodiment 8 of the present invention. FIG. 13G is a sectional view of another example of Embodiment 8 of the present invention. FIG. 14 is a perspective view of an example according to the twentieth embodiment of the present invention. FIG. 15 is a perspective view and a partial sectional view (b) of an example according to Embodiment 20(a) of the present invention. FIG. 16 is sectional views (a) and (b) according to a sixteenth embodiment of the present invention. FIG. 17 is a sectional view of an example according to Embodiments 1, 2, 3, 9, 15, 19, 23, 31, 32 of the present invention. FIG. 18 is a sectional view of an example according to Embodiments 1, 2, 3, 9, 15, 19, 23, 31, 32 of the present invention. FIG. 19 is a sectional view of an example according to Embodiments 1, 2, 3, 15, 19, 23, 31, 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(a) is a perspective view, FIG. 21(b) is a top view, and FIG. 21(c) is a cross-sectional view according to Embodiment 40 of the present invention. 22 is a sectional view (a) according to Embodiment 42 of the present invention, and (b) and (c) are perspective views. 23A and 23B are cross-sectional views according to Embodiments 40, 41 and 42 of the present invention. 24A and 24C are perspective views according to Embodiment 43 of the present invention, and FIG. 24B is a sectional view. FIG. 25 is a sectional view (a) showing the configuration according to the forty-sixth embodiment of the present invention, and (b) is a perspective view. FIG. 26 is a perspective view showing an example according to the forty-seventh embodiment of the present invention. FIG. 27 is a sectional view according to Embodiment 48 of the present invention. FIG. 28 is a sectional view showing an example according to Embodiment 48 of the present invention. 29A and 29B are cross-sectional perspective views according to Embodiment 48 of the present invention. 30(a) and 30(b) are sectional views in which the embodiments 28 and 48 of the present invention are integrated. FIG. 31 is a sectional view (a), (b) according to the embodiments 48, 79 of the present invention. 32 is a sectional view according to the embodiments 79, 48 of the present invention. 33A and 33B are diagrams according to the embodiments 53, 54, 55 of the present invention, in which FIG. 33A is a top development view, FIG. 33B is a perspective view of a winding object, and FIG. (A) It is a cross-sectional view below a portion between dotted lines. 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 of the embodiments 61, 62, 63, 67 of the present invention. FIG. 36 is a sectional view according to Embodiments 61 and 68 of the present invention. FIG. 37 is a sectional view according to Embodiments 61, 63, 64 and 68 of the present invention. FIG. 38 is a sectional view showing an example according to Embodiments 61, 63 and 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. 41A and 41B are perspective views (a) and (c) according to Embodiments 75 and 76 of the present invention, and the lower part of the part shown by the dotted line in (a) is shown as a sectional view (b). FIG. 42 is an example showing a developed view of a cross-sectional view (a), perspective views (b) and (b) according to Embodiment 77 of the present invention. FIG. 43 is a perspective view (a), (b) showing an example according to the embodiment 79 of the present invention. FIG. 44 is a sectional view (a), (b) showing an example according to the embodiment 80 of the present invention. FIG. 45 is a perspective view (a), (b) showing an example according to Embodiment 80 of the present invention. FIG. 46 is a perspective view showing an example according to Embodiment 80 of the present invention. FIG. 47 is a view (a), (b) showing another embodiment related to the embodiments 37, 38 of the present invention. FIG. 48 is sectional views (a), (b) and (c) showing an example according to Embodiment 80 of the present invention. FIG. 49 is a sectional view (a) showing an example of the embodiments 80, 81, 82 of the present invention and a sectional view (b) showing an example of the embodiments 81, 82 of the present invention. 50 is a perspective view (a), (b) showing an example according to the embodiments 80, 81, 82, 83, 84, 85 of the present invention. FIG. 51 is a sectional view (a) showing an example of the embodiments 80, 81, 82, 83 of the present invention. 52 is a cross-sectional view (a), (b) perspective view according to Embodiments 80, 81, 82, 83, 84 of the present invention. FIG. 53 is a perspective view (a), (b) and a sectional view showing an example of the embodiments 80, 81, 82 of the present invention. 54 is a perspective view (a), (b) showing an example according to the embodiments 80, 81, 82, 83, 84, 85, 86 of the present invention. FIG. 55 is a top view (a) and sectional views (b) and (c) showing an example according to Embodiment 50 of the present invention. FIG. 56 is a sectional view (a), (b), (c), (d) showing an example according to Embodiment 51 of the present invention. FIG. 57 is a top view (a) and sectional views (b) and (c) showing an example according to Embodiment 50 of the present invention. FIG. 58 is a sectional view showing an example according to the fourteenth embodiment of the present invention. FIG. 59A is a sectional view showing an example according to the seventeenth embodiment of the present invention. FIG. 59(b) is a sectional view showing another example according to the seventeenth embodiment of the present invention. FIG. 59C is a sectional view showing another example according to the seventeenth embodiment of the present invention. FIG. 59(d) is a sectional view showing another example according to the seventeenth embodiment of the present invention. FIG. 59(e) is a sectional view showing another example according to the seventeenth embodiment of the present invention. FIG. 60 is a sectional view (a) showing an example according to the eighteenth embodiment of the present invention and a sectional view (b) related to the thirty-sixth embodiment of the present invention. FIG. 61 is a perspective view showing an example according to Embodiment 57 of the present invention. FIG. 62 is a perspective view showing an example according to Embodiment 57 of the present invention. FIG. 63 is a perspective view (a), (b) and (c) sectional view showing an example according to the embodiment 87 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 Embodiment 88 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, the water-containing space 5 or the hollow plate-shaped 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. It corresponds to a specific example of a configuration in which the water-retaining base material 6 filled in 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, the water-retaining base material 6 can store water in the water-containing space 5 and can exert a radiation shielding effect. In addition, the gas phase portion 118 can hold an air layer that remains stationary, and can exert a radiation shielding effect. The effect of preventing the scattering of radioactive materials is also obtained. Since the water retaining space 6 is filled in the water-containing space 5, the water retention is good. Further, since the gas phase portion 118 is filled with a molded body or the like made of innumerable fibers whose main material is an inorganic blast furnace slag adhered or impregnated with a resin which is a void-holding base material, it is good for holding still air. .. The hollow plate member can be manufactured at low cost. Moreover, since water can be poured 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 which exhibits the radiation shielding effect which has been conventionally provided.

Next, this embodiment will be described with reference to the drawings.
As shown in the upper diagram (a) of FIG. 1, a rib 4 is formed between the front thin plate 2 and the back thin plate 3, and the space excluding the rib 4 becomes a water-containing space 5, and the water-containing space 5 holds a water-retaining substrate. 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 rock wool. Therefore, when 20 kg of rock wool granules per square meter is filled with water until the water is saturated, the total weight of the rock wool granules and water is about 120 kg per square meter. It is theoretically predicted that this weight can suppress the transmittance of gamma rays, which is highly transparent radiation, to about 50%. Further, it is possible to manufacture the hollow plate-shaped body with a configuration in which the positions of the ribs 4 and the intervals between the ribs 4 are fixed or fixed, or the positions of the ribs 4 are random and the intervals are not constant. However, it is recommended to design and manufacture by calculating the shielding effect of radioactive substances and the fixing effect due to the load, taking into consideration the water-holding base material amount and water content.
Further, in the lower diagram (b), the front thin plate 2 in the upper diagram is separated from the upper surface of the rib 4. The positions of the ribs 4 shown in this figure are an example of the positions of the ribs 4 which are not at regular intervals. Incidentally, the shape of the ribs 4 is selected to be a cylindrical rib 4 so that the water-retaining base material 6 is placed in the water-containing space 5. It is filled without any gap except for the peripheral space.

In the cross-sectional view of FIG. 2C, a plurality of cylindrical hollow ribs 4, a water-containing space 5 and a gas phase portion 118 are formed between a front thin plate 2 and a back thin plate 3, and the hollow rib 4 has a water retention base. The material 6 is rock wool granules 101. Further, the hollow ribs 4 forming the water retaining base material 6 and the vapor phase portion 118 are shown. The upper region between the front thin plate 2 and the back thin plate 3 is configured as a vapor phase portion 118. The water-repellent heat insulating material 42, which is a molded body of rock wool, is configured to remain stationary in the vapor phase portion 118. It should be noted that the water of the water retention base material 6 is blocked at the boundary between the water retention base material 6 and the water repellent heat insulating material 42 via the water shield sheet 76. As the water-blocking sheet 76, a rubber sheet having a thickness of 0.3 mm formed by pressure-bonding a resin that prevents moisture permeation and fluororubber is selected. It is also preferable to select a resin film. With the configuration of the present invention, the water retaining space 6 which is the liquid phase portion is filled with the water retaining base material 6 and the water is kept stationary to maintain the water load when the water is contained, and the water repellent heat insulating material of the gas phase portion 118. Innumerable micro air layers of 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 the vicinity of a portion contaminated with a radioactive substance because it can be presumed that the structure of the present invention has an effect of reducing transmission of radiation emitted from the radioactive substance.

Further, in the example of the cross-sectional view shown in the following figure (d), a plurality of ribs 4 in which upper surfaces of frustoconical shapes are joined to each other between the front thin plate 2 and the back thin plate 3 which constitute the vapor phase portion 118 are formed in the upper layer portion. It is configured. The surface of the surface thin plate 2 at the position forming the rib has a concave shape. 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 vapor phase portion. Further, in the lower layer constituting the vapor phase portion, a water retaining substrate 6 and a water-containing space 5 are formed inside a plurality of cylindrical hollow ribs. The upper surface of this cylindrical rib is pressed against and welded to the back thin plate 3 shown in the upper layer. 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 forming the vapor phase portion 118. In addition, a plurality of concave-shaped portions of the surface thin plate 2 are filled with either ultrafine-grain activated carbon having a particle size of 980 μm or less, or zeolite having a grain size of 980 μm or less, or a mixture of ultrafine-grain activated carbon having a particle size of 980 μm or less and zeolite. It is also preferable that a resin film or a rubber-coated cloth formed by pressure-bonding resin and rubber is attached to the upper surface of the surface thin plate 2 having the mixture because it can be expected to be useful for reducing the shielding of radioactive substances.

Further, as another related embodiment, a plurality of truncated cone-shaped upper surfaces joined to each other between the front thin plate 2 and the back thin plate 3 forming the vapor phase portion 118 in the upper layer portion shown in FIG. In the plurality of concave-shaped portions formed on the front thin plate 2 and the back thin plate 3 of the hollow plate body in which the ribs 4 are formed, ultrafine-grain activated carbon having a particle size of 980 μm or less, or zeolite having a particle size of 980 μm or less, A sheet or resin film in which any one of a mixture of ultrafine-grained activated carbon having a particle size of 980 μm or less and zeolite is filled, and a fluororesin film is attached to the surface of an aluminum foil on the upper surface of the surface thin plate 2 having the mixture. Alternatively, a rubber-coated cloth, which is obtained by pressure-bonding resin and rubber, is attached. Alternatively, the same resin plate as that of the hollow plate or a resin plate is integrated on the upper surface of the surface thin plate 2 by a bonding means such as heat fusion, adhesion, or adhesion, and a myriad of fine particles useful for reducing shielding of radioactive substances. It is also possible to choose to produce hollow plate bodies with holes. Since ultrafine-grain activated carbon and zeolite have pores similar to the size of radioactive materials, they are useful for adsorption of radioactive materials and reduction of permeation of radioactive materials due to the influence of air or water vapor contained in ultrafine pores. And, it is preferable because it is possible to predict the reduction of the dose transmission related to the antistatic of the resin.
In addition, in a region excluding a plurality of ribs of a hollow plate in which a plurality of ribs 4 in which truncated cone-shaped upper surfaces are joined to each other are formed between a front thin plate 2 and a back thin plate 3, ultrafine particles having a particle size of 980 μm or less are formed. Activated carbon or a zeolite having a particle size of 980 μm or less, or a mixture of ultrafine-grained activated carbon having a particle size of 980 μm or less and zeolite is filled, and the same resin material in which the peripheral portion of the hollow plate body is formed into a hollow plate is formed. Used to weld and close. Alternatively, the vicinity of the inner edge of the peripheral edge of the hollow plate is bent by thermal welding or thermocompression to close the hollow plate. The plate body in this form is useful for reducing the shielding of radioactive substances.
Further, the form of the hollow plate having the innumerable fine holes specified in the above-mentioned other related embodiments and the plate body of the form closed by bending and heat-welding near the inner periphery of the hollow plate were merged. It is also preferable to manufacture a plate for reducing shielding of radioactive materials. 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 expected 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 sectional view (e),
A plurality of ribs 4 in which upper surfaces of frustoconical shapes are joined to each other are formed between the front thin plate 2 and the back thin plate 3 which form the vapor phase portion 118 in the upper layer portion. The insides of the upper and lower truncated cones of the plurality of ribs 4 in which the upper surfaces of the truncated cone shape are joined to each other are hollow and are configured as a vapor phase portion 118. The region excluding the ribs is the vapor phase portion 118 and forms a hollow plate. A hollow plate is shown in which a plurality of cylindrical ribs are formed between the front thin plate 2 and the back thin plate 3 below the back thin plate 3 of the hollow plate. A water-retaining base material 6 and a water-containing space 5 are formed inside the cylindrical rib. The water retaining base material 6 is filled in the water-containing space 5 excluding the cylindrical rib. The surface thin plate 2 above the lower liquid phase portion and the back thin plate 3 forming the vapor phase portion 118 are firmly adhered to each other with an adhesive to have a structure in which the liquid phase portion and the vapor phase portion 118 are integrated. is there. The means for bonding using an adhesive is an example, and the back thin plate 3 and the front thin plate 2 may be bonded by another bonding method.
Further, in the lower part (f), the hollow plates constituting the liquid phase portion 119 are arranged in the central layer, the hollow plates constituting the vapor phase portion 118 are arranged above and below the central plate, and three layers are formed. The side surface, front surface, and back surface of the hollow plate are closed using a closing member 10 made of a resin plate and an L-shaped resin rod fixing member 16. The closing member 10 and the L-shaped resin rod fixing member 16, the back thin plate 3 and the front thin plate 2 are heat-welded with a resin welding rod.
It is possible to presume that the structure of this embodiment has an effect of reducing the transmission of the radiation emitted from the radioactive substance, which is preferable.

FIG. 2 is a diagram in which the water-retaining base material 7 packed in the water-containing space 5 of the hollow plate-shaped body 1 made of transparent resin is filled. Although it depends on the content of the water-retaining base material 7, it is preferable to wrap the water-retaining base material 7 with paper, a resin fiber woven fabric, a resin film, a rubberized cloth sheet, etc., and fill the predetermined water-containing space 5 with this method. is not. If the water-repellent heat insulating material 42, which is a minute air layer formed of innumerable mineral fibers or the like, is secured in the gas phase portion 118, the thermal conductivity is reduced, which is preferable for shielding the dose of radioactive substances. It is also preferable that the water-containing space partially comprises a void space (gas phase portion 118) and the void space is provided with any one of a rock wool molded product, a glass wool molded product and a ceramic fiber molded product having water resistance. In addition, as the rock wool molded body in which numerous fibers filled in the vapor phase portion 118 are molded, it is preferable to select a molded body having water repellency by adhering or impregnating the rock wool fiber with a resin.

Further, the material forming the plate body, the hollow plate member, and the rib is not particularly limited, and examples thereof include polyolefin resins such as polyethylene resin and polypropylene resin, polyvinyl chloride resin, polystyrene resin, polyacrylic resin, ABS. Resin, polyfluorine resin, polycarbonate resin, polyester resin, polyarylate resin, epoxy resin, silicone resin, polyimide resin, thermoplastic resin such as synthetic rubber, thermosetting resin and photocurable resin, metal , Plated metal, water repellent timber, timber, concrete, mineral fiber, mineral powder, thermoplastic resin, metal or timber coated with thermosetting resin or photocurable resin, paper, etc., corrosion resistance and molding A thermoplastic resin having excellent properties is preferable, and it is preferably molded by extrusion molding, injection molding, foaming injection molding, mold molding, mold crimp molding or the like.

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

In order to provide reinforcement, weather resistance, light resistance, heat resistance, antistatic, insulation, etc. to the plate body, the front thin plate 2 and the back thin plate 3 forming the hollow plate, which are the constituents of the radiation reduction component. Polyolefin resin such as polyethylene resin and polypropylene resin, polyvinyl chloride resin, polystyrene resin, polyacrylic resin, ABS resin, polyfluorine resin, polycarbonate resin, polyester resin, polyalate resin, polyimide resin Synthetic resin film, rubber sheet, rubber sheet made by adding additive material to rubber, resin film rubber in which resin such as nylon or polyester is formed in the rubber film of the rubber made by adding additive material to the front and back surfaces A rubber-lined cloth sheet in which the rubber melted between the cloth and the base cloth (either aramid fiber, nylon, polyester, aluminum foil, vinylon ox, or glass fiber) is pressure bonded, and the front and back sides are made of fluororubber with carbon. Resin film made of resin such as nylon or polyester in the rubber film of the added rubber and the base cloth (aramid fiber, nylon, polyester, polyester fiber, aluminum foil, vinylon ox, glass fiber) It is preferable to laminate a rubber-coated cloth sheet obtained by pressure-bonding any of the above) and a rubber-coated cloth water-permeable sheet formed by laminating a fluororesin film on the surface of the rubber-coated cloth sheet. Further, it is also preferable to laminate a fluoroaluminum water-impermeable sheet obtained by laminating a fluororesin film on the surface of the aluminum foil. Further, it is preferable that the main surface material is a heat-sealing material excellent in water resistance, which is formed by pressure bonding a thermoplastic polyurethane elastomer and a polyester base material.
As a laminating method, any laminating method such as adhesion, adhesion, heat fusion, vapor deposition, and tucker 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 surface of each of the resin films, aluminum foils, and rubberized cloth sheets described above. Further, in order to impart design characteristics or the like, a synthetic resin film may be printed with a picture pattern, a photograph, a character or the like.

The thickness of the front thin plate 2 and the back thin plate 3 is not particularly limited, but the thinner the thickness, the lower the mechanical strength, and the more easily the load is broken, the more preferable it is 0.5 mm to 20 mm. The thickness is preferably 10 mm or more in order to select wood that is useful for reducing the transmission of the dose.

In addition, the front thin plate 2 and the back thin plate 3 are laminated through a plurality of ribs 4 to form a hollow plate-like body. It is preferably 3 mm to 100 mm, more preferably 15 mm to 300 mm, since the area of the part and the void volume ratio are reduced. 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, for example, 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×. 20×600 cm is preferable.

The shape of the rib 4 is not particularly limited, and examples thereof include a cylindrical shape, a cylindrical shape, a prismatic shape, a square pipe shape, a truncated cone shape, a conical cylindrical shape, a pyramidal shape, an annular band 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 the facing upper surfaces of the tips are joined to each other in a rib shape or an integrally formed substantially hourglass rib shape. There are also drum-shaped ribs.
Alternatively, 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 plate, etc. may be mentioned. To form this hollow plate, corrugated plate, or folded half-plate into a front thin plate and a back thin plate, a plurality of the ribs 4 are provided between the front hollow plate and the back hollow plate to bond the front and back hollow plates and the ribs with a bonding agent and a resin. You may choose to weld using a welding rod. Alternatively, a form using a fixture such as a bolt or a nut may be selected. Alternatively, the hollow plate-shaped body can be formed by using a fixing tool or the like in which the corrugated plate, the back corrugated plate, and the plurality of ribs 4 are welded using a bonding agent or a resin welding rod. In addition, a fitting portion that allows the front thin plate 2, the back thin plate 3, and the rib 4 to be joined to the part surface on which it is hit 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 also do it.

Further, in this configuration, the water-retaining base material 7 is filled in the water-retaining space. By the function of the water-retaining base material 7, water can be stored in the water-retaining space 5, and the water-retaining base material 7 can be stored in the water-retaining 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 is uniformly hydrated in the region excluding the plurality of ribs 4. With this water content, the effect of reducing the transmission of radiation can be exerted.

In addition, in the method of filling the water-retaining base material 7 in the water-containing space 5 of the hollow plate-shaped material, it is preferable to fill the water-retaining base material 7 itself, but the water-retaining base material 7 is made of a non-woven fabric or a polyethylene fiber net. It is also possible to sew a polyethylene sheet woven in a uniform shape or to fill the water-retaining space 5 with a water-retaining base material 7 filled in a bag formed by heat-sealing a part of the peripheral edge. Alternatively, a non-woven fabric, a polyethylene sheet in which polyethylene fibers are woven into a net shape, or a non-woven fabric or paper may be used to wrap the water-retaining substrate 7 in the water-containing space 5.

Since the amount of the water retention base material 7 to be filled in the water containing space 5 affects the weight of the radiation transmission reduction base material, the weight of the radiation transmission reduction base material at the time of completion and the weight of the water retention base material 7 in the saturated water content state are integrated in advance. That is, the radiation reduction rate can be calculated.
In addition, by designing a hollow plate body by integrating the water content of the water retention base material 7 and the weight of the water retention base material 7 before containing water and the mass of the hollow plate body, fixtures, etc. It is desirable because it will be possible to set up and set the amount of water related to water content and the number of workers.

Even if the front thin plate and the back thin plate of the hollow plate-shaped 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-shaped body have a plurality of ribs therebetween. Good. When this structure is selected, the hollow plate is formed by using bolts, nuts, screw nails, rivets, washers, adhesives, adhesives, tapes, etc. that fix the front plate and the back plate of the hollow plate to the rib material. Preferably.

Further, in this structure, the rock wool molded body 42 having water resistance for holding air still in a myriad of minute voids in the gas phase portion 118, the glass wool molded body having water resistant performance, or the ceramic fiber molded body is used. Filling is also preferable.
The rockwool molded body composed of innumerable fibers whose main material is the inorganic blast furnace slag filled in the vapor phase portion 118 is a granular cotton or plate having water repellency obtained by attaching or impregnating rockwool fibers with a resin. It is preferable to select a molded body such as a body, a felt-shaped body, a rectangular parallelepiped body, a cubic body or a rectangular rod-shaped body. When the gas phase portion 118 is filled with a rock wool molded body 42 that is a void-holding base material, a glass wool molded body having water resistance, a ceramic fiber molded body, or a ceramic molded body, it is good for holding still air. Further, ultrafine-grained activated carbon or zeolite having a particle size of 980 μm or less is attached to or impregnated in the rock wool molded body 42, 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 should be noted that a water-blocking 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 vapor phase portion so that the water content of the water-retaining base material evaporates in the vapor phase portion area. It is also preferable to prevent Alternatively, the water-permeable sheet 76 or a film material that does not allow water vapor to permeate the space-holding base material may be hermetically sealed or packed in a bag to form a hollow plate-like body.
<Second Embodiment>

In this embodiment, in the radiation transmission reducing component base material of the first invention, the peripheral portion of the water-containing space is closed or a part thereof is closed, and the surface thin plate has the entire water-containing space. It corresponds to a specific example of the configuration characterized in that the form in which one or more communicating through holes are formed may be included.
This embodiment will be described with reference to the drawings.
In FIG. 3, one end face of a hollow plate-like body made of transparent polycarbonate resin is formed as a closed end face 9, and one end face is used as a water injection port. A lid 8 is attached to the water injection port. In this hollow plate-shaped body, a front thin plate 2 and a back thin plate 3 are installed substantially parallel to each other, and are laminated via a plurality of plate-shaped ribs 4. A 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. Further, the water-injecting port is closed with a lid shape 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,

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

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

The upper part (a) of FIG. 4 is a perspective view made of an opaque resin material. Although all the closed end faces 9 of the peripheral edge 3 of the hollow plate-shaped body 1 shown are closed, and the above-described water injection port shown in FIG. 3 is provided with a closing member 8 which is a lid. In the example of FIG. 4, the through hole 12 is opened in a part of the closing member 8. The through hole 12 serves as 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 retaining substrate 6 through the closing member 8 shown in the cross section in the figure below.

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

Further, according to the configuration of FIG. 5, since the peripheral portion of the water-containing space 5 is closed, it is possible to store water so that the static state of the water in the water retaining base material 6 is stable. In addition, the water injected into the water retention base material 6 in the state where the band-shaped through holes 11 and the through holes 12 are closed and the peripheral portion is closed by the closing member 10 shown in the upper part (a) of FIG. Since there is almost no loss of weight, the radiation transmission reduction effect can be stably exhibited.

As shown in the upper diagram (a) of FIG. 5, a strip-shaped through hole 11 for communicating with the through hole 12 and the water-containing space 5 in the surface thin plate 2 of the hollow plate body filled with the water retention base material 6. Is provided to form a structure that allows water to permeate into the water retention substrate 6. Further, the lower diagram (b) is a cross-sectional view of the lower surface shown by the dotted line between (a) and (a) shown in the upper diagram (a).

In addition, at the 18 points of closed welding shown in this cross-sectional view, all the upper parts except for the back thin plate 2 up to both ends of the hollow plate-like body in the rib longitudinal direction in the inner region up to both ends at right angles to the rib longitudinal direction are inverted triangles. After cutting out or cutting, or by applying heat to the inverted triangular metal rod to melt the end of the hollow plate-shaped body from the surface thin plate 2 surface, the lower tip of the inverted triangle is melted by applying pressure to the hollow plate-shaped body. It is the figure which bent the part surface to the through-hole 12 direction, welded the surface which opposes, and closed the end part. Closing the ends by this closing method is preferable because the water-containing space 5 is increased in strength because it is firmly closed. However, although it is recommended that the water retention substrate 6 be filled before being closed, this method of closing the end is shown as an example, and the method is not limited to this.

Further, the plate body, the member of the hollow plate-shaped body is not particularly limited,
For example, a polyolefin resin such as a polyethylene resin or a polypropylene resin, a polyvinyl chloride resin, a polystyrene resin, a polyacrylic resin, an ABS resin, a polyfluorine resin, or a polycarbonate, which is also specified in the first embodiment. Resin, polyester resin, polyarylate resin, epoxy resin, silicon resin, polyimide resin, thermoplastic resin such as synthetic rubber, thermosetting resin and photocurable resin, metal, lumber, thermoplastic resin, heat A metal coated with a curable resin or a photocurable resin, a plated metal, a water repellent lumber, lumber, paper or concrete, and the like, a thermoplastic resin excellent in corrosion resistance and moldability is preferable, and also extruded. Molding is preferably performed by a molding method such as molding, injection molding, mold molding, mold compression molding, compression molding, foam injection molding or the like.

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

The plate body, the hollow plate, the front thin plate 2 and the back thin plate 3 forming the hollow plate, which are configured as the radiation-transmission-reducing constituent base material, include reinforcement, weather resistance, light resistance, heat resistance, electric resistance, insulation, etc. Polyolefin resin such as polyethylene resin and polypropylene resin, polyvinyl chloride resin, polystyrene resin, polyacrylic resin, ABS resin, polyfluorine resin, polycarbonate resin, polyester resin, polyalate for imparting -Based resin, synthetic resin film of polyimide-based resin, aluminum foil or rubber sheet, rubber sheet made by adding additive material to rubber, nylon or polyester in rubber film of rubber made by adding additive material to front and back surfaces A rubber-coated cloth sheet formed by pressure-bonding a melted rubber and a base cloth (any one of aramid fiber, nylon, polyester, aluminum foil, vinylon ox, and glass fiber) between resin-coated rubber cloths that constitute resins such as Resin film in which resin such as nylon or polyester is formed on the rubber film of the rubber whose front and back sides are carbon added to the rubber and the rubber melted between the rubber cloth and the base cloth (aramid fiber, nylon, polyester, polyester fiber) , Aluminum foil, vinylon ox, or glass fiber) is preferably laminated, and a rubber-coated cloth sheet formed by laminating a fluororesin film on the surface of the rubber-coated cloth sheet is preferably laminated. Further, it is also preferable to laminate a fluoroaluminum impermeable sheet obtained by laminating a fluororesin film on the surface of the aluminum foil. In addition, it is preferable that the main surface material is a heat-sealing material having excellent water resistance, which is formed by pressure bonding a thermoplastic polyurethane elastomer and a polyester base material. As a laminating method, a laminating method such as adhesion, adhesion, heat fusion, vapor deposition, or a tucker 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 surface of each resin or aluminum foil described above. Further, in order to impart design characteristics or the like, a synthetic resin film may be printed with pictorial patterns, photographs, characters, and the like.

Further, in this structure, the peripheral portion of the water-containing space 5 is closed to form a structure that blocks movement of stored water. It is desirable to select the forming method described above. As a method of closing this end portion, any known method may be adopted. However, the plate-like body made of the material forming the front thin plate 2, the back thin plate 3 and the ribs 4 of the radiation transmission reducing component base material is closed using a waterproof airtight tape, an aluminum foil tape, a waterproof sheet, or the like, or It is preferably closed with concave or convex rubber, cement, welded resin rod, anti-corrosion metal plate and concave anti-corrosion metal plate.

Also, the front thin plate 2 and the back thin plate 3 are laminated with a plurality of ribs 4 interposed therebetween, but when the thickness of the hollow plate is thin, the area of the water-containing space 5 and the water-containing volume ratio are 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 examples thereof include a plate shape, a cylindrical shape, a cylindrical shape, a prismatic shape, a rectangular cylinder shape, a truncated cone shape, a truncated cone shape, a pyramid shape, and upper surfaces of two truncated cones. Examples of the shape include a shape in which two are joined, a shape in which two conical cylindrical upper surfaces are joined, and an hourglass shape. An embodiment in which a cylindrical rib is formed is shown in the lower diagram (b) of FIG.

<Third Embodiment>
This embodiment is based on the second invention, and comprises a hollow plate-shaped 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 in that it includes a band-shaped through hole that is 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 part (a) of FIG. 6 (see the lower part (b) for the inside), the end surfaces are closed by the ribs 4 located on the left and right end surfaces of the hollow plate-shaped body 1. Further, both end faces in the longitudinal direction of the plate-shaped rib 4 are shown as closed end faces 9 in a closed state. However, inside the hollow plate-shaped body, there are a plurality of plate-shaped ribs and water-containing spaces 5 between the plate-shaped ribs, and the water-retaining base material 6 is filled therein. Note that this closing method is the closing welding 18 by the thermal processing described in the above embodiment. Further, a strip-shaped through hole 11 is formed in the front thin plate 2 shown on the upper surface of the perspective view.

Since the strip-shaped through-holes 11 formed so as to intersect the plurality of plate-shaped ribs 4 are formed, water injection is facilitated, and rainfall is generated from the strip-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-shaped body 1, therefore, when water injection work is performed in a rain environment, the amount of water supply depends on the amount of rainfall but the amount of water permeated through the rainfall. Since it is less, the water resources are effectively used.

Further, the water contained in the water-retaining base material 6 can be kept in a static state because the peripheral portion of the hollow plate 1 is closed, and the water content can be maintained. Although the water leaks from the band-shaped through-holes 11 occurs when the water content of rainfall or water injection exceeds the water content of the water retention base material 6, it does not affect the maximum water content of the water retention base material 6. Further, even if the hollow plate-shaped body 1 is installed in a stationary state on a flat surface or an inclined surface, water hardly leaks from the through hole 11 due to factors other than the above, and therefore the radiation transmission reducing effect is permanent.

The width of the band-shaped through hole 11 is not particularly limited, but if the width is narrow, the water flow is affected. On the other hand, if the width is too wide, the water content will be affected by the environment outside the hollow plate, and the water content will decrease. Therefore, the width may be 1 mm to 15 mm, preferably 1 mm to 8 mm. Further, the interval between the band-shaped through holes 11 may be 10 cm or more, but a narrower interval does not affect water injection or the like.
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 examples thereof include a band such as a straight line, a curved line, and a meandering line, a polygon such as a triangle, a quadrangle, and a hexagon, a circle, an ellipse, a geometric pattern, and a spiral pattern. Can be mentioned.

Further, in the lower diagram (b) of FIG. 6, a plurality of plate-like members between the front thin plate 2 and the back thin plate 3 are formed by closing the end faces by the ribs 4 located on the left and right end faces of the hollow plate-shaped member 1. Both end faces in the longitudinal direction of the rib 4 are perspective views on the assumption that the ribs 4 are closed by a closing member 10, and the water retaining space 6 is filled in the water-containing space 5 between the plate ribs 4. Has been done. This figure is also a perspective view according to the second embodiment.

Further, the material forming the front thin plate 2, the back thin plate 3 and the rib 4 is not particularly limited as long as it does not hinder the growth of plants, and can be selected from the materials described in the second embodiment. Good. Further, the method described in the first and second embodiments may be applied to the manufacture of the hollow plate-like body and the end closure.

<Fourth Embodiment>
In this embodiment, the plurality of ribs include four or more plate-shaped ribs arranged so as to alternately incline in opposite directions, and the water-containing material located at the longitudinal ends of the plurality of plate-shaped ribs. At least one end of the space for use 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 corresponds to a specific example of the constituent base material.

This embodiment will be described with reference to the drawings.
The upper diagram (a) and the middle diagram (b) of FIG. 7 are cross-sectional views of the hollow plate-shaped body 1 in which the plate-shaped ribs 4 are alternately arranged to incline in opposite directions. Inclining ribs 4 are arranged between the ribs 2 and the back thin plate 3 to form a water-containing space 5 between the ribs 4 and the water-containing space 5 is filled with a water-retaining base material 6. In the lower diagram (c), a plate-shaped rib 4 is formed substantially horizontally between the front thin plate 2 and the back thin plate 3, and a plurality of plate-shaped ribs 4 different from the plate-shaped rib 4 formed in the horizontal direction are provided. It is sectional drawing of the hollow plate-shaped body 1 arrange|positioned.

In this radiation transmission reducing component base material, the plate-like ribs 4 are arranged so as to alternately incline in opposite directions, or the plate-like ribs 4 are formed substantially horizontally between the front thin plate 2 and the back thin plate 3, and 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-section breakage or displacement of the hollow plate-shaped body due to an external force. There is.

<Fifth Embodiment>
This embodiment corresponds to a specific example of a configuration in which the plurality of ribs include hollow ribs, and the water-containing space also includes the internal spaces of the plurality of through holes. According to this structure, the water content volume ratio increases, and the water content increases and the weight also increases due to the increase in the amount of the water-holding base material contained in the hollow plate-shaped body. Therefore, it is suitable for increasing the radiation 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 holes 12 shown in the peripheral portions. Further, in this example, a plurality of through holes 12 are opened in the surface thin plate 2 at arbitrary positions, and the figure also shows the closing member 10 that closes the through holes 12 shown in the peripheral portion after water injection. There is.
Further, a sectional structure taken along a dotted line connecting (a) and (a) shown in the drawing is shown as a sectional view of the hollow plate-shaped body 1 in the upper part (a) of FIG. In addition, FIG. 3B immediately below the upper figure shows a hollow plate-shaped body 1 having a plurality of ribs formed by forming a through hole 12 in a cylindrical rib 14. Further, in the lower diagram (c), two through-hole ribs 14 and a cylindrical rib 14 having a concave notch formed on the upper surface of the rib are illustrated.

<Sixth Embodiment>
This embodiment corresponds to a specific example of the radiation-transmission-reducing component 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 formed, and a 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 inside the rib 4. 1 shows a hollow plate-shaped body 1. Further, FIG. 9B shows a hollow plate-shaped body 1 having a plurality of through-hole ribs 14, and both ends of the hollow plate-shaped body 1 are closed by end closing surfaces 9 so as to be closed inside. The hollow plate-shaped body 1 filled with the water retention base material 6 is shown by a cross-sectional view. Note that FIG. 9C shows two different through-hole ribs 14. The left figure shows the through-hole 12 and the right figure shows a cylindrical rib 14 having a concave notch formed on the upper surface. It is illustrated. Thus, in addition to the rib shape shown, the through hole 12 and the concave notch as described above are formed in the ring-shaped rib, honeycomb rib, and grid rib between the upper and lower surfaces and the upper and lower surfaces of the rib. The ribs may be configured as the ribs of the hollow plate body 1.

Since the hollow ribs are filled with the water-retaining base material 6 and contain water, the water content is surrounded by the side walls of the ribs, and thus the static state is maintained without being affected by the external force acting on the hollow plate-shaped body 1. Since there is no change in the amount of water, the amount of water and the weight of the hollow plate 1 are stable. Stabilization of the radiation transmission reduction effect due to the stable weight, and the radioactive substance fixing effect also increases due to the loading effect of the hollow plate-shaped body 1. Therefore, in this configuration, the radiation transmission reduction effect and the radioactive substance fixing effect are obtained. Suitable for

<Seventh Embodiment>
The present embodiment is the radiation-transmission-reducing constituent substrate according to any one of the second to sixth inventions, wherein the one or more through holes formed in the surface thin plate are one or more planted with a diameter of 30 mm to 180 mm. This corresponds to a specific example of a configuration having a feature of including a working hole in part.
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, the 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 closures are shown removed to facilitate the understanding of the spatial elements inside the hollow plate. Cylindrical ribs 4 are scattered on the upper surface of the back thin plate 3, and a water-containing space 5 surrounds the ribs, and the front thin plate 2 shown above the water-containing space 5 and the ribs 4 has a band-shaped penetration. A hole 11 is formed, and the band-shaped through hole 11 includes a planting hole 13.

Although the water retention base material is not shown in this figure, the water retention space 5 is filled with the water retention base material at the time of implementation, and water is injected from the planting holes and the 13 strip-shaped through holes 11 to form a hollow plate-shaped body. Water will be stored inside. 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 component base material, is erected and plants are planted in the planting holes 13. Planting completes the greening of the wall structure. In this way, when using a green wall, it is recommended to manufacture a hollow plate having a thickness that can secure the water content necessary for reducing radiation transmission and the water content necessary for plant growth. Although the plant species can be selected according to the size of the planting hole 13, a planting hole 13 having a diameter of 15 cm enables planting of trees.

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 required for reducing radiation transmission and the water-containing region necessary for plants to grow, 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 region for planting a plant inside the hollow rib.

<Eighth Embodiment>
In the present embodiment, the radiation transmission reducing component base material has a plurality of water shields having a main surface, a plurality of water shields, a fixing member for fixing the plurality of water shields so that their main surfaces face each other, and the plurality of water shields. It corresponds to a specific example of a configuration in which a water retention base material sandwiched between water shields and a water passage pipe or a hollow plate may be provided in a part of the water retention base material.
This embodiment will be described with reference to the drawings.

In the upper diagram (a) of FIG. 12, the water retaining base material 6 is provided between the water shielding plate 19 and the water shielding plate 19 (or 22), and the two water shielding plates on the left and right sides are integrated with the water retaining base material 6. FIG. 7 is a perspective view of an example of a radiation transmission reducing component substrate in which a through hole 12 for inserting a bolt screw which is a fixing member 16 for the purpose of making it is formed. Further, the lower part (b) is a cross-sectional view showing a part of the fixed part in the upper part (a). In the example shown in the figure, the water-retaining base material 6 is sandwiched between the left and right water-impervious plates 19 and 22, and the bolts and nuts as the fixing member 16 are used. It has a fixed specification that keeps the intervals at a fixed interval. In this fixing method, although it depends on the shapes of the water shield plates 19 and 22, it is preferable to integrate at least four places by using bolts and nuts in this way.

In addition, the water shield plate 22 shown on the right side of the figure uses a hollow underdrain plate 22 having a back thin plate having a water shield function as a water shield plate. According to this configuration, the total weight of the weight of the ^two water shield plates of 10 kg/m ² and the saturated moisture content of the water-retaining base material 6 made of rock wool having a thickness of 7 cm of 100 kg/m ² is combined to cause a radiation It is estimated that the transmission reduction rate can be about 50%. Furthermore, when the thickness of the water retention substrate 6 is 16 cm, the total weight becomes 240 kg/m ² , and the radiation transmission reduction rate is about 80%. It is presumed that this can be made more useful.
For this specification, it is desirable to fix with a bolt/nut or washer as a fixing member that matches the thickness of the water retaining substrate 6 and the water blocking plate 22, but the fixing member and the fixing method may be any fixing member and fixing means. It is possible to make the structure.

Further, dry rock wool which is a water-retaining base material sandwiched between respective water shields 22 having a width of 1680 mm and a width of 1000 mm, a facing main surface of a width of 1000 mm and a width of 750 mm, and a facing main surface of a width of 750 mm and a width of 1680 mm. It is also useful for shielding high-concentration doses, because a radiation-transmission-reducing constituent base material in the form of 450 kg of granular cotton and a saturated weight of water of 2600 kg can be prepared. In addition, in order to withstand the water-containing saturated weight of 2600 kg, the joint surface of each main surface is made of a large number of connecting members such as a strong I-shaped joint and a right-angled hollow L-shaped joint. Preferably.

In the upper diagram (a) of FIG. 13, the water-retaining base material 6 is sandwiched between the water-impervious plates 19 and 22, and the fixing members 16 are used to keep the formation, and the end portions of the peripheral edges of the left and right water-impervious plates 19, 22 are shown. The outer thin plate between the ribs at the bent portion of the hollow plate 21 which is one water-blocking plate is cut so that the frame is surrounded by a frame, and the inner thin plate at the cut portion is bent substantially at a right angle. It is a perspective view of an example before attaching the shaped impermeable plate frame 10 to an end portion of a peripheral edge formed by sandwiching the water retaining substrate 6 between the impermeable plates 19 and 22.
The L-shape for fixing the water shield plate frame 10 is shown in the figure. It is preferable to use rivets or screws and nuts for joining the L-shape and the water shield plate frame.
It should be noted that the water blocking plates 19 and 22 are provided 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 circular shape with an electric tool. The circular hollow underdrain plate in the cut out cut portion can be fitted into the through hole after water injection to close the through hole, and thereby the original shape of the water shield plate can be restored, so opening and closing of this water injection port Means are preferred. The number of the through holes may be plural in consideration of the water injection time.

In addition, in each of the methods of fixing the water blocking plate, in addition to the bolts and nuts and washers of the fixing member 16 shown in the figure, for example, a binding band made of resin, metal, or fiber fabric is used. A structure having the structure may be manufactured.
In this configuration, since the entire periphery of the water-retaining base material 6 is blocked by the water-blocking plates 10 and 19, there is no movement of water and the initial amount of water injected is permanently retained, so that the radiation transmission reduction rate is more stable. become. Further, it is also possible to construct by stacking several water shield plates 22 in multiple layers.

The lower diagram (b) of FIG. 13 shows the water shield plates 19a and 19b having different shapes from the water shield plate shown in FIGS. 12 and 13 (a) whose surface shape is smooth. .. The water shield plates 19a and 19b have a convex surface 97 in which the surfaces of the water shield plates 19a and 19b are formed in a convex shape. The position having a plurality of convex shapes is the checkered convex surface 97 (see the right figure) shown in the diagram on the right side of FIG. It is also useful to provide a water-retaining base material in a region space around the convex portion of the water-blocking plate and stack the upper and lower portions so that the upper surfaces of the convex portions 97 abut each other. In addition, a water retaining material is provided in a water-containing space 5 between two integrally formed water-blocking box-shaped plates in which side walls are provided upright at the periphery of a plate having a plurality of shapes of the protrusions 97 so as to have the same thickness as the protrusions 97. A structure in which a structure in which 6 is sandwiched and is stacked with the fixing member 16 is integrated is also useful for radiation shielding. Further, the shape of the convex portion 97 may be formed by unevenness.

FIG. 13C is a view showing the radioactive substance contaminant 71 accumulated at the bottom of the gutter 113, which is connected to the basin 114 and the gutter 113 shown in the perspective view of FIG. FIG. 3 is a perspective view and a cross-sectional view (g) of a radiation transmission reducing component substrate having a drainage water passing function of FIG. All the water blocking plates 19 shown in the perspective view are vinyl chloride resin plates. The water-retaining base material 6 is filled while being surrounded by the water shield plate 19. A water passage 108 is provided in a part of the water retaining base material 6. This water pipe 108 is a vinyl chloride pipe. It should be noted that a through-hole 12 matching the size of the end surface of the water pipe 108 is formed at a position substantially the same as the position of the end surface of the water pipe 108 in a water shield plate 19 shown below, which is different from the perspective view. The water shield plate 19 having the through hole is fixed to the end surface of the water pipe 108 by using a screw of the fixing member 16. The back surface (not shown in the perspective view) is also fixed using the screw of the fixing member 16 to the water shield plate 19 having the through hole 12 of a size matching the end surface of the same water pipe 108.

Further, a through hole 12 of a water injection port 25 for water injection is provided in the water shield plate 19 on the upper surface of the perspective view. The through hole 12 is formed by cutting a water shield plate 19 made of vinyl chloride resin into a circular shape with an electric tool. The circular plate of the cut out cut portion can be fitted into the through hole after water injection to close the through hole, and thereby the original shape of the water shield plate can be restored, so that the opening and closing means of this water inlet is preferable. The number of the through holes may be plural in consideration of the water injection time.

Further, the size of the radiation transmission reducing component base material having the function of shielding radioactive substance contaminants 71 existing near the bottom of the gutter and allowing water to pass may be a size that matches the inner size of the gutter. Further, as an example, in the inner region of the inner bottom of the radiation transmission reducing component base material in which the water shield plate 19 is made of green resin and has a width of 40 cm, a height of 65 cm, and a length of 102 cm, is formed 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 rows, and a water-retaining base material is prepared by mixing rock wool and activated carbon in the outer region of the vinyl chloride pipe. Regarding the reduction rate of radiation transmission of the filled structure, the thickness of the water retention base material filled in the upper surface region of the vinyl chloride pipe is 30 cm, and the saturation load of water injected into the water retention base material is 225 kg, It is useful because it is estimated that the transmission reduction rate can be about 75%. In addition, since a saturated load of 225 kg of water including the load of the water retention base material is a static load with no movement, it is also useful for fixing the radioactive substance existing between the outer bottom surface and the side groove of the radiation transmission reducing component base material. preferable. Further, it is more preferable for shielding that the material of the water shield plate 19 constituting the radiation transmission reducing component base material is added with any one of dark blue, green, blue, black, gray and red pigments. Since the weight of the radiation-transmission-reduced constituent material before wetting is as light as about 45 kg, it is useful because it can be installed by one to three workers to install it in the gutter.
Further, as described above, the number of water pipes to be constructed may be determined by considering the number that does not hinder the drainage function of the gutter as much as possible and the outer diameter of the PVC pipe. If the outer diameter of the vinyl chloride pipe is large, one pipe may be used. The thickness and filling amount of the water-retaining base material 6 are preferably calculated in consideration of the dose value emitted by the radioactive substance so that it is considered to be most effective in reducing the transmission of radiation. Further, the water-retaining base material 6 in which activated carbon, resin pellets and powder rubber are mixed is useful.

The cross-sectional view shown in FIG. (d) is an example of the construction of the radiation transmission reducing component substrate. According to this structure, the water shield plate 19 has a hollow plate 21 provided with a plurality of ribs between the front thin plate and the back thin plate as the top surface, the bottom surface, the side surface, the front surface, and the rear surface of the water retention substrate shown in the figure. It is provided between 19 and the water pipe 108 (a row of vinyl chloride pipes in the lateral direction). It should be noted that the water blocking plates 19 may not be provided on both end surfaces of the water pipe 108 in the longitudinal direction. However, it is preferable to fix each water pipe 108 to the water shield plate 19 using a fixing tool such as an adhesive tape, heat welding, a screw screw, a bolt, or a nut. Further, a water injection port 25 for water injection is shown on the upper surface. The water injection port 25 is a rectangular water injection port 25 in which part of the front thin plate and the back thin plate of the hollow plate 21 which is the water shield plate 19 and the ribs are not cut. After injecting water into the water-retaining base material, it is preferable that the hollow plate 21 having the water inlet 25 is fitted into the water inlet and the water inlet 25 is closed.

In the figure (e), as in the case of the figure (d), the water blocking plate 19 is a hollow plate 21 provided with a plurality of ribs between the front thin plate and the back thin plate. 96 regions), the rear surface (excluding the drainage channel 96 region), the left and right side walls of the drainage channel 96 shown in the figure, and an intermediate plate on the side walls. Further, in the cross-sectional view shown, the water-retaining base material 6 is filled between the upper water shield plate 19 and the middle water shield plate 19. Further, the water retaining base material 6 is filled in the space between the side wall (water shield plate 19/hollow plate 21) of the drainage channel 96, the water shield plate 19 on the outer side, the side surface, and the bottom surface and the water shield plate 19 in the middle stage. .. In addition, a water injection port 25 for injecting water into the water retaining base material 6 is provided in the water shield plate 19 on the upper surface. When water is injected from the water injection port, the water is flooded from the water injection port provided in the water shield plate 19 provided in the middle stage to the water retaining base material 6 below. According to this structure, even if a vinyl chloride pipe is not formed, a function of passing water from the front surface to the rear surface of the radiation transmission reducing component base material is preferable. Further, fixing members 16 nuts for attaching the front and rear water shields to the top, bottom and side water shields are shown respectively.

Note that the outer shape of this embodiment is a circular pipe shape, a square pipe shape, a square bar shape, a round bar shape, a square pole, a cylinder shape, a pyramidal 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 waterways, basins, etc. other than the gutters.

The material of the water shield plate having this configuration is not particularly limited, and it is preferable to select the material described between [0111] and [0124] 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 have a water-impervious plate. In addition, as a concrete forming method, it is also preferable to form the water-impervious plate by form forming, form consolidating, and form compressing. In addition, a molding form of at least one box made of polypropylene resin or polyethylene resin having durability that does not deteriorate by rust or corrosion, which is different from the water shield of the radiation reducing component base material (filling water retention base material). It is also preferable to select and use a container having a region and a water passage.

<Ninth Embodiment>
In the radiation transmission reducing component base material of the ninth invention of FIG. 9( b ), a plate body formed of a thermoplastic resin, or a back thin plate 3 and a front thin plate 2 via a plurality of plate-shaped ribs 4. A hollow plate-like body 22 in which the drainage channels 96 are formed by stacking the plate-like bodies substantially parallel to each other, or a back thin plate 3 and a front thin plate 2 having a plurality of through holes. However, the hollow plate-shaped body 22 is laminated through a plurality of ribs, the rib is the plate-shaped body 4, the plurality of plate-shaped bodies are installed substantially parallel to each other, the drainage channel 96 is formed, The through hole is a band-shaped through hole 11, and is a radiation transmission reducing component substrate having a underdrain plate structure in which a plurality of band-shaped through holes 11 are provided so as to intersect the plate-shaped 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 forming the hollow plate-shaped member specified in the first embodiment. Moreover, since 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 it in accordance with the reference. Further, in order to enhance the mechanical strength and the radiation transmission reducing effect of the plate body and the underdrain plate of the embodiment of the ninth invention, the plate body and the front thin plate 2, the back thin plate 3 and the plurality of plate-shaped ribs 4 are formed. It is preferable to make the thickness thicker.Addition of an antistatic agent and a pigment has a radiation transmission reducing effect when the plate is manufactured by resin molding and when the material forming the hollow plate-shaped member is manufactured by resin molding. It is preferable because it can be estimated that the value will be further increased. The color of the pigment to be added is preferably dark blue, blue, green, black, gray, brown, purple, and yellow.

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

In order to provide reinforcement, weather resistance, light resistance, heat resistance, electric resistance, insulation, etc. to the plate body, the front thin plate 2 and the back thin plate 3 which form the radiation reducing component substrate Polyolefin resin such as polyethylene resin, polypropylene resin, polyvinyl chloride resin, polystyrene resin, polyacrylic resin, ABS resin, polyfluorine resin, polycarbonate resin, polyester resin, polyalate resin, polyimide A synthetic resin film or aluminum foil of a system resin 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 to the upper surface of each resin or aluminum foil described above. Further, in order to impart design characteristics or the like, a synthetic resin film may be printed with pictorial patterns, photographs, characters, and the like. In addition, you may choose to laminate|stack rubber-lined cloth sheets other than the above which were clarified in the description of the material which comprises the hollow plate-shaped member of 1st invention. By stacking such materials, the effect of insulating properties and heat resistance is increased, which is preferable for reducing radiation transmission.

The front thin plate 2, the back thin plate 3 and the ribs 4 formed of the thermoplastic resin may be transparent, semi-transparent or opaque, and in order to improve weather resistance, light resistance, heat resistance, moldability, etc. Addition of heat stabilizers, stabilizing aids, bone agents, processing aids, antioxidants, light stabilizers, pigments, antistatic agents, inorganic fillers, plasticizers, etc. that are commonly used during resin molding May be done.
Further, in order to obtain the effect of adsorbing a radioactive substance, it is preferable to select any of navy blue, blue, green, black, gray, red, brown, purple and yellow as a pigment and to add the pigment at the time of molding the resin.
Further, the surface of the molded plate or the hollow plate-shaped member may be coated with a paint, or the upper surface coated with a binder such as an acrylic resin may be coated with a paint. It is also preferable to apply a fluororesin or a phenol resin.
Further, ultrafine-grain activated carbon having pores that match the size of the radioactive substance, or zeolite, and ultrafine-grain activated carbon and zeolite may be added to the above resin in order to obtain the adsorption effect of the radioactive substance, but still added. The ultrafine-grained 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.

In addition, since the hollow plate-like body of the underdrain plate structure in which the band-shaped through holes 11 are formed has a function of smoothly draining rainfall regardless of whether it is a flat surface or a slope, for example, the ground contaminated with a radioactive substance is grounded. When used by laying on the upper surface of soil in farmland or farmland, drainage effect of rainfall and reduction of transmission of radiation emitted from the ground and soil and radioactive substances are adsorbed on the back thin plate in contact with the ground and soil Useful for. In addition, it is easy to grow a plant such as a crop by forming a soil with good water retention on the upper surface of the surface thin plate 2 of the hollow plate-shaped body having the underdrain plate structure in which the band-shaped through holes 11 are formed. Is. A gap having a drainage channel 96 function exists between the upper surface area of the front thin plate 2 and the bottom rear surface area of the back thin plate 3 where the radioactive substance can be estimated to be adsorbed. Due to this void structure, the radioactive substance existing on the bottom back surface is not touched even when the roots of the plant planted on the upper surface of the surface thin plate 2 extend. That is, the hollow plate-like body having the underdrain plate structure is useful because it prevents the water absorbed by the plant roots from containing radioactive substances.

Other useful applications of the hollow plate structure of this underdrain plate structure, for example, by having the function as described above, in the soil of agricultural land where crop production is impossible due to salt damage due to the effect of the tsunami, It is useful and preferable in the agricultural field because it can be expected to have an effect of preventing secondary salt damage on the soil top surface and the agricultural land where salt removal work has been performed. Furthermore, it is also useful to lay a hollow plate-shaped body having a underdrain plate structure on the upper surface of the land polluted with harmful substances. When this hollow plate is manufactured using an extrusion molding machine with additives such as pigment added to the resin raw material, the width is 130 cm and the length can be manufactured endlessly. It is preferable to manufacture it in a size that matches the shape and area of the. The underdrain plate in which the hollow plate-shaped body and the band-shaped through hole 11 are formed has excellent rigidity. For example, since the drainage channel 96 has a strength not to be destroyed even by the load of the outrigger of a large vehicle, it is preferable in the field of civil engineering drainage work such as land reclamation work requiring a permanent drainage function. A plate body, a hollow plate body, and a hollow plate body in which the band-shaped through holes 11 are formed are useful because they are often provided as the constituent base material of the present invention.

<Tenth Embodiment>
In the radiation transmission reducing component substrate of the tenth invention, the back thin plate 3 and the front thin plate 2 having a plurality of through holes shown in FIG. 10(a) have a large number of columnar ribs 4. It is configured as a hollow plate-shaped body 21 before being laminated via the above. It is a perspective view in which a drainage channel 96 is formed between columnar ribs and the band-shaped through hole 11 of the twelfth invention is formed. The front thin plate 2, the back thin plate 3, and a plurality of ribs are integrally formed.
Further, Fig. A shows a ring-shaped rib, Fig. A shows an angular hourglass rib, Fig. C shows a cylindrical rib, and Fig. E shows a plate-shaped body inside the cylindrical rib. The shape is shown. It is preferable to select any of such rib shapes to manufacture the radiation transmission reducing component base material. Further, according to this structure, in order to manufacture the hollow plate-shaped body 22, it is preferable to manufacture it according to the description of the material forming the hollow plate-shaped member specified in the first embodiment. Further, since a specific example of opening the band-shaped through hole 11 is specified in the third embodiment, it is preferable to perform it in accordance with the reference. Further, in order to enhance the mechanical strength and the effect of reducing the radiation transmission in the underdrain board 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 to configure a large number of ribs. Good to do.

The color of a molded product manufactured by general resin molding is semi-transparent when a polypropylene resin is molded, for example. A semi-transparent front and back plate 2, a back thin plate 3 and a plurality of ribs 4 which are formed by molding polypropylene resin which is an insulating polymer are preferable for obtaining a radiation transmission reducing effect, and further when the polypropylene resin is manufactured by molding. It is considered that the addition of the antistatic agent and the pigment enhances the radiation transmission reducing effect. It is also preferable to add activated carbon or 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 produced by molding is preferably dark blue, blue, green, black, gray or red. The radiation transmission reduction rate of translucent resin molded products that are generally molded is the same as that of molded products that are added with antistatic agents, dark blue or green pigments, and activated carbon and zeolite. But you can guess it's different. Further, since the hollow plate-shaped body having the 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 a flat surface or an inclined surface, for example, When laid and used on the surface of soil contaminated with substances or on the soil of agricultural land, the drainage effect of rainfall and the reduction of transmission of radiation emitted from the ground and soil and the adsorption of radioactive substances on the backing plate in contact with the ground and soil Therefore, it is useful for fixing radioactive materials. 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 the peripheral side surface serves as a drainage port is preferable for workability since it is possible to omit aligning the directions of the drainage channels when laying a plurality of sheets connected to the upper surface of a sloped land.

In order to provide reinforcement, weather resistance, light resistance, heat resistance, electric resistance, insulation, etc. to the plate body, the front thin plate 2 and the back thin plate 3 which form the radiation reducing component substrate Polyolefin resin such as polyethylene resin, polypropylene resin, polyvinyl chloride resin, polystyrene resin, polyacrylic resin, ABS resin, polyfluorine resin, polycarbonate resin, polyester resin, polyalate resin, polyimide A synthetic resin film of a system resin or an aluminum foil may be laminated by selecting a laminating method such as adhesion, adhesion or vapor deposition. It is also preferable to apply an epoxy resin, a fluororesin, or a phenol resin on the upper surface of each resin or aluminum foil described above.

<Fourteenth Embodiment>
According to the structure of the fourteenth invention, both ends (closed end surface 9) or the peripheral portion of the drainage channel 96 shown in FIG. 58 are closed or partially closed, and the drainage channel 96 can store water. FIG. 6 is a cross-sectional view showing that excess water can be drained from a part of the drainage channel 96 or the through hole, overrunning the rib at the end, and the overflowed water. In the configuration of this cross-sectional view, the drainage channel 96 is filled with the water retention base material 6. Since the water retention base material is filled, for example, even if the radiation transmission reducing component base material is provided on the inclined surface, the movement of the water entering the drainage channel from the through hole causes only excess water 58 to move and the water retention base material to be absorbed. The water will remain stationary. That is, although there is an action of replacing the water containing water with the water entering water, it is preferable to keep a certain amount of water still in the water retaining base material of the drainage channel 96 because the radiation transmission reducing effect is continued.

<Sixteenth 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 to the same other radiation transmission reducing component base material, thereby the other It is a radiation-transmission-reducing component base material of any one of the 21st to 15th inventions, which includes a fitting portion that enables connection with the radiation-transmission-reducing component base material.
FIG. 16 is a cross-sectional view showing a cross-sectional shape of the 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 placed in a water-containing space 5 surrounded by the front thin plate 2, the back thin plate 3 and the ribs 4. 6 is filled. The left and right ends of the hollow plate-shaped body 1 have ribs 4 having a shape that allows fitting. That is, the left and right ribs 4 of different shapes of the two hollow plate-shaped bodies 1 are fitted to each other as shown in the center of FIG. As an example, the thickness of the front thin plate 2 and the back thin plate 3 of the hollow plate 1 is 3 mm, the thickness of the plurality of ribs 4 is 2 mm, and the ribs 4 of the fitting shape at both ends are also 2 mm. The space between the ribs 4 and the ribs 4 is 30 mm, the thickness of the hollow plate 1 is 35 mm, and the length of the ribs 4 in the longitudinal direction is 6 m. The weight of the water-saturated state of the hollow plate-shaped body 1 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-shaped body 1 is preferably manufactured by extrusion molding using a vinyl chloride resin as a main material.

Further, by fitting a plurality of hollow plate-shaped bodies 1 having the fitting-shaped ribs 4 formed therein, a wall having a large area can be easily constructed, which is useful in a place where radiation shielding is required. Further, since it is easy to disassemble, when the hollow plate-shaped body 1 is composed of four layers, the radiation shielding rate becomes about 75% (the radiation dose is reduced to about 25%), and a portion requiring shielding is required. Suitable for The standard of each member of the hollow plate 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 molded to 140 mm, the radiation shielding rate becomes about 75%.

<17th Embodiment>
The radiation transmission reducing component base material of the seventeenth invention comprises a vertical wall having a through hole or a vertical wall having no through hole, the joint having a cross-sectional shape of I or right-angled portion hollow L, The radiation transmission-reducing component base material according to any one of the first to fifteenth inventions is connected to form 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 an I-shaped cross section 43 and a joint 43 having a hollow corner L shape, showing an example of this embodiment. In the upper diagram (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 poured into the water retaining base material. It shows that the radiation transmission reducing substrate is inserted. The lower diagram (b) shows that the radiation transmission reducing base material shown in the above diagram is inserted into the joint 43 of the hollow portion L at the right angle portion. This I-shaped cross-section 43 or hollow L-shaped joint 43 is made of aluminum and is integrally molded. As shown in the figure, since the radiation transmission reducing base material is connected in a state where there is almost no gap, it is useful for preventing scattering of the radioactive substance from the gap at the connection portion and reducing the radiation transmission. It is also preferable for maintaining the strength of the connection points. It is useful because the radiation transmission reducing component substrate of any one of the first to seventeenth inventions can be made into various shapes by making heavy use of the joint 43 having the I-shaped cross section and the joint 43 having the right-angled hollow portion L-shape. .. For example, select as a joint for a wall material of a cube, a rectangular parallelepiped, a triangular pyramid, a quadrangular pyramid, a quadrangular pyramid, a quadrangular prism, and a triangular prism. It is preferable because it can be connected. Note that the cross-sectional view (c) shows a hollow I-shaped joint made of vinyl chloride resin. A hollow plate having a plate-like rib 4, a front thin plate 2 and a back thin plate 3 is shown. The cross-sectional view (d) shows a hollow plate constituted by a plate-shaped rib 4, a front thin plate 2 and a back thin plate 3, which are fitted to a right-angled hollow L-shaped joint made of vinyl chloride resin. .. The cross-sectional view of FIG. 6E is an example, but the end face of the hollow plate, which is composed of the plate-shaped rib 4, the front thin plate 2 and the back thin plate 3, is closed by a hollow circular closing member 10.
Using a fixing member such as a bolt, a nut, a screw, a nut, a washer, or a rivet by forming a through hole in the base material to be connected and the I-shaped joint 43, the I-shaped joint 43, or the right-angled portion hollow L-shaped joint 43. It is more preferable to fix.

<Eighteenth Embodiment>
A radiation transmission reducing component base material of an eighteenth invention is a surface thin plate of the radiation transmission reducing component base material of any one of the first to seventeenth inventions, which has a shape of a saw, a corrugated plate, an uneven shape, a box, a rectangular parallelepiped, a cube. Alternatively, it is a radiation-transmission-reducing component base material having a gutter-like shape, in which a dark conduit body or a molded body having through holes formed in the thickness direction is laminated.
The upper figure (a) of FIG. 60 shows a box-shaped (box 37) showing an example of this embodiment, the upper surface of which the activated carbon adhering sheet 17 is laid on the upper surface of the radiation transmission reducing component base material of the third invention. FIG. 3 is a cross-sectional view showing that it is provided in the. In addition, a plurality of through holes 12 are opened in the thickness direction of the bottom of the box body 37. The inside of the box 37 is filled with soil 33 in which a cotton wool material containing water, fertilizer, rot and the like is mixed. This structure is also useful for the production of crops, flowers and trees. In addition, it is preferable because a water-containing load having no movement that is useful for shielding radioactive substances is configured.

The lower diagram (b) is a cross-sectional view showing that a concrete block having a rectangular parallelepiped shape 107 is provided on the upper surface of the radiation transmission reducing component base material of the third invention, which is the same as the upper diagram (a). Through holes 12 are formed in the concrete block in the thickness direction in order to prevent rain from collecting on the surface of the concrete block. Also, concrete blocks can be used as planting blocks. In order to make a planting block specification, filling the interior of the through hole 12 with planting soil and planting a plant such as turfgrass may be suitable for a green space such as a parking lot. In addition, it is preferable to select a concrete block having a water retention property because it suppresses heat islands together with the effect of the present invention. Further, it may be replaced with the planted concrete block by selecting a sludge shape, a corrugated plate shape, a concavo-convex shape, a box shape, a rectangular parallelepiped shape, a cubic shape or a gutter shape made of resin or wood. Although not shown in the drawing, 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 component base material of the third invention. In addition, it is preferable to reduce the transmission of radiation by providing the structure shown in the upper and lower figures on the upper surface of the portion contaminated with radioactive material.

<19th Embodiment>
In the embodiment of the nineteenth invention, a non-woven fabric and/or ultrafine-grain activated carbon is adhered or impregnated on the front thin plate side or the back thin plate side of the radiation transmission reducing component substrate of any one of the first to eighteenth inventions. The non-woven fabric is laminated or laminated. As an example, when a non-woven fabric to which ultrafine activated carbon is attached is attached to the surface thin plate side of the first invention, the activated carbon is uniformly contained in the non-woven fabric, and thus the adsorption effect of the activated carbon can be obtained in a planar form, which is preferable. As a means for laminating, it is preferable that laminating is performed by using a tacker needle in addition to adhesion, heat fusion, adhesion, or adhesion, heat fusion, adhesion. Also, any method may be used. Further, since the water-retaining base material is hydrated, it is useful because it serves as a radiation transmission-reducing constituent base material having a reduction in the transmission of radiation having both a shielding element for water-containing load and a planar adsorption element. 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-grained activated carbon having a particle size of 1000 μm or less.

<Twenty-third embodiment>
In the embodiment of the 23rd invention, rockwool fiber or a molded product thereof is laminated on the surface thin plate side of the radiation transmission reducing component substrate of any of the 1st to 22nd inventions. Rockwool fiber is mainly used for blast furnace slag generated during iron making, and unlike general soil, it is not mixed with weed seeds and is therefore preferable for creating a green space. It also has excellent heat insulation. It is preferable because its heat insulating property can be expected to be effective in reducing radiation transmission. Further, since it has water retention property, it is useful for the present invention.

<Twenty-fourth Embodiment>
In the embodiment of the twenty-fourth invention, the molded product of the rockwool fiber of the twenty-third invention is a non-woven fabric, a felt-like material, a plate-like material, a square bar, a granular material, or a cotton-like material. Furthermore, a form in which a hexagonal wire mesh is bonded to the surface of the rock wool fiber molded product, a form in which the surface of the molded product is covered with glass cloth, and an aluminum foil and a glass fiber sheet are bonded to the surface of the molded product. Contains rockwool fiber in the form of laminated aluminum cloth,
The peripheral edge of the radioactive substance adsorption sheet according to the twenty-first or twenty-second aspect of the present invention is a bag body formed into a bag body that is closed or is left with a partial opening, Since the water-holding base material or the space-holding base material is filled, the shape of the water-holding base material is maintained even when the water-holding 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 over a long period of time.

<Twenty-fifth Embodiment>
This embodiment of the twenty-fifth aspect of the present invention is such that at least one of the water-blocking sheet, the moisture-proof film, and the two-layer sheet in which the moisture-proof film and the water-blocking sheet are laminated has a peripheral edge part or a partial opening part. Or the invention of the 71st, 72th or 74th aspect of the present invention, or the rockwool molding of the 24th invention or the 71st, 72nd or 74th invention inside the bag form in which a plurality of holes are formed in the water-blocking sheet or moisture-proof film. Since the water-holding base material is filled with any of the water-holding base materials, there is no change in the amount of water held. Therefore, a dose shielding effect can be expected for a long period of time, which is preferable. As an example, a bag having a width of 70, a width of 40, and a width of 20 cm has a dry weight of about 20 kg, but has a saturated weight of water of 120 kg. This load is preferable because it is useful for reducing the transmission of radiation.

<Twenty-sixth Embodiment>
An embodiment of the twenty-sixth aspect of the invention is that the radiation transmission reducing component base material of the twenty-fifth aspect is provided on the upper surface of a portion contaminated with a radioactive substance, and the radiation transmission reducing component base material of the twenty-fifth aspect of the invention is provided. The radiation transmission reducing component base material according to any one of the first to twenty-second inventions is laminated on the upper surface of, so that the radiation transmission reduction effect is increased, which is preferable.

<Twenty-seventh Embodiment>
The twenty-seventh aspect of the invention is the twenty-third or twenty-fourth aspect of the present invention in which a recess or a through hole is formed in a rock wool fiber molded body. It is preferable that a recess or through hole be formed in a rectangular parallelepiped or cubic molded body made of rockwool fiber, because it is easy to fill the recess with fine carbon-shaped carbon, which is useful for reducing radiation transmission. In addition, it is preferable that the recesses are plural.

<Twenty-ninth Embodiment>
In the twenty-ninth embodiment of the invention, the radiation transmission reducing component base material of any one of the first to twenty-third inventions is bent or side walls are provided upright at both ends of the radiation transmission reduction component base material to form a groove shape. Therefore, it is preferable to install it in a gutter that is contaminated with radioactive material, because it is considered to be useful for reducing the radiation emitted by the radioactive material existing on the inner wall surface and the bottom surface of the gutter. Further, other members or the radiation transmission reducing component base material of any one of the first to twenty-third inventions is provided at both ends of the groove, and when fixed by a fixing member, a box-like body is formed. You can choose to store the pollutants that are contaminated with. In addition, it is preferable to form a lid of the base material on the upper surface.

<Thirty-first embodiment>
The embodiment of the thirty-first invention is a radiation-transmission-reducing component base material in which a soil layer is laminated on the upper surface of the radiation-transmission-reducing component substrate of any one of the first to thirtieth inventions, Measures to prevent radioactive material diffusion It is a greened structure. The soil of the soil layer may be a water-retaining material, but a more preferable material is a soil having an aeration environment, a carbon environment, a trace element fertilizer environment, and a drainage environment suitable for the growth of plant roots. Should be selected. The load of soil having water retention capacity is useful for reducing radiation transmission.

<Thirty-second embodiment>
The embodiment of the thirty-second invention is a radiation protection green space and a radioactive material diffusion preventive green space structure using the radiation transmission reducing component base material of the thirty-first invention in which turf grass is planted in a soil layer. .. According to the invention, the plant is useful because it can be grown by forcing culture. Since turfgrass can grow both warm and cold type turfgrass, it is considered useful because it can contribute to improving the living environment of children in schoolyards, gardens, parks and the like. In addition, in the case of soil having a high water content, water may exude from the soil to the lawn surface. Although the lawn of the present invention has a water content of 90% by volume, water exudes to the lawn surface. The accumulation phenomenon is not expressed. Therefore, it is suitable for sports. Of course, it is suitable for reducing the transmission of radiation due to the high water content and the base material constituting the soil.

<Third Embodiment>
In this embodiment of the thirty-third 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 the rock wool fiber or a molded body or soil layer thereof. A radiation-transmission-reducing constituent substrate of the thirty-first or thirty-second invention, which is a radiation-protective green space and a radioactive substance diffusion preventing measure green space structure using the same. 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 presumed that the high temperature of the soil is prevented due to the countless minute voids and water content, that is, the present invention suppresses the effect of radiation on heat.

<34th Embodiment>
In the thirty-fourth embodiment of the present invention, a large number of through holes or band-like through holes are formed between the rockwool fiber or its molded body and the soil layer, or in the rockwool fiber or its molded body or in the soil layer. A thirty-third aspect of the invention is a hollow plate-shaped body in which a front surface thin plate and a back thin plate having a large number of through holes or band-shaped through holes are stacked via a plurality of ribs. According to the structure of the present invention, since the rockwool fiber is sandwiched between at least two hollow plate-like bodies, the movement of water contained in the rockwool fiber is maintained as a substantially static body. It is preferable that the load related to the water content useful for reducing the radiation transmission and the soil water content area required by the planted plant are formed in the upper and lower layers so that the water absorption activity of the root of the plant is not hindered. It can also be presumed that it is useful for reducing radiation transmission.

<50th Embodiment>
In the structure relating to the reduction of radiation transmission of the fiftieth invention, the front thin plate 2 and the back thin plate 3 are any of a plurality of plate shapes, cylindrical shapes, truncated cone shapes, honeycomb shapes, prismatic shapes, truncated pyramid shapes, and lattice shapes. The upper surface of the radiation transmission reducing component base material according to any one of the first to seventeenth inventions, which is selected from the hollow plate-shaped body 21, the resin plate, the resin sheet, and the rubber sheet which are laminated via the ribs. The underdrain has a plate shape, a box shape, a gutter shape, a saw shape, an uneven shape, a sponge shape, or a corrugated plate shape, and has a thickness of 0.03 mm or more on the upper surface of the base material having a plurality of through holes. A non-woven fabric having a basis weight of 10 g/m ² or more/or a non-woven fabric on which activated carbon is adhered or impregnated, two non-woven fabrics are joined in a lattice, and a fertilizer or a mixture of fertilizer and activated carbon is formed between the upper and lower non-woven fabrics of the produced lattice. Of a plant-growing sheet in which at least one of them is encapsulated is laminated on the upper surface thereof, a grain-shaped molded product made of rockwool fiber having a density of 25 kg/m ³ or more is laminated, and the soil layer 33 is further formed on the upper surface of the rockwool fiber. A radiation protection green space and a radioactive material diffusion preventing green space structure using the base material for reducing radiation transmission, which is characterized by being laminated.

FIG. 55(a) is a bottom view showing the box body 37 formed of polypropylene resin.
In the middle cross-sectional view (b), the hollow plate 21 is placed on the upper surface so that the bottom surface of the box body 37 shown in FIG. An activated carbon-adhered water-permeable sheet 17 is laminated on the upper surface of the bottom surface. It is sectional drawing which the rock wool cotton-like object 101 and the soil 33 with a density of 25 kg/m3 or more are laminated|stacked on the upper surface of the activated carbon adhering water-permeable sheet 17. When the soil structure configured as described above is installed on a portion where the radiation dose shows a relatively high value, the dose transmitted through 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 material 101 so that the water content of the soil 33 and the rock wool cotton-like material 101 increases. When a pigment such as navy blue, blue, green, black, gray, or brown is added to the polypropylene resin, which is a thermoplastic resin, when the box 37 is molded with resin, the pores of the pigment and the ultrafine particles with a large surface area of the pores are added. It is possible to estimate that the dose permeated through the soil structure is reduced due to the voids and water content contained in the activated carbon and the rockwool fiber composed of minerals, which is preferable. That is, the factor of shielding other than the load of the structure is that the electromagnetic wave of radiation is suppressed by the polypropylene resin having the insulator. Then, it is conceivable that the minute voids composed of fibrous minerals and carbon suppress the thermal conduction of radiation. Furthermore, it is considered that it is based on the fact that a large amount of water, which is a compound of hydrogen and oxygen, is integrated. Furthermore, it is also preferable to select any one of the first to seventeenth inventions for the hollow plate 21 and replace it with the hollow plate 21 as a material that can be expected to reduce the transmission of the radiation dose. A configuration in which any one or more of the first to seventeenth inventions are selected is also preferable. The box 37 is an example of the present invention and is not limited to this.

In the configuration of the cross-sectional view shown in FIG. 2C, the activated carbon-adhering 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. As shown in FIG. (a), the rock wool cotton-like body 101 is placed so that the bottom surface of the box body 37 is located upward, and the rock wool-like cotton-like body 101 is activated carbon-adhered and permeable to a position close to the bottom surface (FIG. a) of the box body 37. The upper surface of the sheet 17 is stacked on the inner area of the box 37. The soil 33 is laminated on the upper surface of the rock wool cotton body 101. Then, the plant 95 is planted in the soil 33 in the circular inner region of the box 37. The thickness of the box 37 is 18 cm. The total weight of the weight of the soil 33 and the rock wool cotton-like material 101 saturated with water and the weight of the hollow underdrain 22 formed in this thickness region is about 240 kg/m ² , and the radiation transmission reduction rate is about 80. It is estimated that it can be made into %. It should be noted that the addition of pigments of dark colors such as blue, green, and black to the polypropylene resin, which is a thermoplastic resin, can be expected to improve the radiation transmission reduction rate, and therefore the addition of pigments may be selected. A factor of shielding other than the load on the structure is that electromagnetic waves of radiation are suppressed by the polypropylene resin having an insulator. Then, it is conceivable that the heat conduction of radiation is suppressed by the action of fibrous slag consisting of innumerable voids and oxygen existing in the pores of activated carbon having innumerable pores. Furthermore, it is considered that it is based on the fact that a large amount of water, which is a compound of hydrogen and oxygen, is integrated. In addition, the disaster prevention non-woven fabric sheet mainly composed of aramid fiber is laminated on the upper surface of the soil of the soil structure with this configuration, and the structure is integrated with bolts, nuts, etc. of a plurality of fixing members to green the shielding wall of radioactive material. It is preferable because it can be manufactured and provided as a structure. Therefore, the 50th invention is useful.

<Fifteenth Embodiment>
The structure relating to the reduction of radiation transmission of the fifty-first invention is a rib in which a front thin plate and a back thin plate have a plurality of plate shapes, cylindrical shapes, truncated cone shapes, honeycomb shapes, prismatic shapes, truncated pyramid shapes, and lattice shapes. Select any of a hollow plate-shaped body, a resin plate, a resin sheet, and a rubber sheet that are laminated via the above, or a underdrain shape on the upper surface of the radiation transmission reducing component substrate according to any one of the first to seventeenth inventions. Has a plate shape, a box shape, a gutter shape, a saw shape, an uneven shape, a sponge shape, or a corrugated plate shape, and has a thickness of 0.03 mm or more and a basis weight of 10 g on the upper surface of the base material having a plurality of through holes. /M ² or more non-woven fabric/or non-woven fabric on which activated carbon is adhered or impregnated, two non-woven fabrics are joined in a lattice, and a fertilizer or a mixture of fertilizer and activated carbon is enclosed between the upper and lower non-woven fabrics of the resulting lattice. A radiation-transmission-reducing constituent base material in which a soil layer containing fertilizer, mulch, minerals, and rockwool fibers is laminated on top of at least one of the plant growing sheets Diffusion prevention measures It is a greening structure.

56(a) to (d) are cross-sectional views showing an example of the constituent base material of this embodiment. In FIG. 3A, a cushion material 104, which is formed in a sponge shape by laminating resins in a thread shape, is laminated on the upper surface of the hollow plate-shaped body 22. On the sponge-like upper surface, a non-woven fabric 17 having activated carbon attached is laminated. On the upper surface of the non-woven fabric 17, a soil layer 33 containing fertilizer, mulch, minerals and rock wool fiber 101 is laminated with a thickness of 15 cm. In FIG. 6B, a plate-shaped support material 105 is alternately laminated on the upper surface of the hollow plate-shaped body 22 and the cushion material 104 formed in the sponge shape. A non-woven fabric 17 having activated carbon attached is laminated on the upper surface thereof. On the upper surface of the non-woven fabric 17, a soil layer 33 containing fertilizer, mulch, minerals and rock wool fiber 101 is laminated with a thickness of 15 cm.

57C, the base material shown in the front view and the side sectional view of FIG. 57A is laminated on the upper surface of the hollow plate 21. In this base material, the above-mentioned sponge-like cushion material 104 is housed in each triangular inner area of the rectangular support material 105 having a height of 5 cm 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 united. A non-woven fabric 17 having activated carbon adhered is laminated on the upper surface of the supporting base material. On the upper surface of the non-woven fabric 17, a soil layer 33 containing fertilizer, mulch, minerals and rock wool fiber 101 is laminated with a thickness of 15 cm.

FIG. 6D shows a nonwoven fabric 17 to which activated carbon is attached, which is laminated on the upper surface of the hollow plate-shaped body 22 by inverting the supporting base material laminated on FIG. ing.
On the upper surface of the non-woven fabric 17, a soil layer 33 containing fertilizer, mulch, minerals and rock wool fiber 101 is laminated with a thickness of 15 cm.
The load of each soil (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, the cross-sectional view shown in FIG. 56(c) shows that the cushion material 104 having a thickness of 2 cm is formed on the upper surface of the hollow plate-shaped body 22 in a sponge shape by overlapping the resin in a thread shape. The rock wool fiber 101 having a size of 3 cm is housed in the inner region of each triangle of the rectangular support 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. On the upper surface of the non-woven fabric 17, a soil layer 33 containing fertilizer, mulch, minerals and rock wool fiber 101 is laminated with a thickness of 15 cm. The total 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 contained 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.

<80th Embodiment>
A radiation transmission reducing wall structure according to the 80th aspect of the present invention, wherein a plate-like material or a non-combustible sheet or a flameproof sheet laminated to form a container and a net-proof flame sheet formed by laminating a net material, and the inside of the container are filled. A water-retaining base material or a water-retaining base material and a gas phase portion, and the plate material or the anti-mechanical flame sheet has through holes or notches that enable planting or water injection. Wall structure.
The upper part (a) of FIG. 48 is a cross-sectional view showing the side surface of an example of this embodiment.
According to this structure, the hollow plate-like body 22 whose front surface, bottom surface and back surface forming the inclined surface 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 formed. It is formed by using three 29. The joint between the joint 29 and the hollow plate 22 is fixed with a screw. In addition, the upper corner of the front surface of the hollow plate-shaped body 22 is formed by cutting the front thin plate and bending the cut. The rear end of the upper surface is fitted into the joint 29 and fixed with a screw of a fixing member.

In addition, a plurality of through holes 13 for planting are provided in the inadvertent sheet 41 which is a glass fiber woven fabric on the front surface. The through hole 13 for planting is formed in the hollow plate-like body 22 on the inner surface thereof at the same position as the inadvertent sheet 41 which is the front glass fiber fabric. In addition, the region inside the hollow plate-shaped body 22 is filled with the water-retaining base material 6 whose main materials are rock wool and activated carbon. On the back surface of the water-retaining base material 6, rock wool, which is a water-repellent heat insulating material 42 that does not contain water and that constitutes the vapor phase portion 118, is provided. Then, planting through holes 13 having a diameter of 20 cm are provided at four places on the upper surface and plants 95 are planted. In addition, plants 95 are planted in a plurality of planting through holes 13 formed on the front surface. This free-standing radiation reduction wall structure has a height of 130 cm, a width of 100 cm, a bottom depth of 50 cm, and a top depth of 25 cm. The load is 470 kg in a water-containing 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 on the land behind the back surface of the radiation transmission reducing wall structure is the radiation transmission reducing wall structure. It is preferable because it is possible to sufficiently reduce transmission to the front surface of the body. Water may be injected from the planting through holes 13. Further, it is preferable that rainfall also falls from the planting through holes 13 onto the water retaining base material 6 inside the radiation transmission reducing wall structure.

<81st Embodiment>
The radiation transmission reducing wall structure of the eighty-first invention, wherein the container has an inclined surface, and a strip-shaped through hole extending substantially horizontally is formed in a region of the plate member forming the inclined surface. A radiation transmission reduced wall structure of the invention.
The lower diagram (b) of FIG. 49 is a front partial view showing the band-shaped through hole of this embodiment.
A polypropylene resin which is a thermoplastic resin fitted in a joint 29 formed of I-shaped aluminum shown vertically between the corner hollow L-shaped joints 29 shown in the horizontal direction above and below. A plurality of strip-shaped through holes 11 are formed in the manufactured hollow plate-shaped body 22. The width of the band-shaped through hole may be selected from 2 mm to 10 mm. In addition, a plurality of through holes 12 are formed in the hollow plate 22 in the front thin plate and the back thin plate of the hollow plate 22. On the front surface of the hollow plate-like body 22, an impregnated woven fabric 41 made of glass fiber is attached. The through-holes 13 for planting are opened in the fabric 41, and the plants 95 are planted therein. When the strip-shaped through-holes 11 and the through-holes 12 are thus formed at intervals in the hollow plate-like body 22 forming the slope, if rain falls on the surface of the radiation transmission reducing wall structure, rainwater Permeates the glass fiber fabric on the surface from the top to the bottom of the slope and flows. The running water flows down to the strip-shaped through holes 11 and the through holes 12 formed in the lateral direction and is contained in the water retaining base material. The radiation permeation-reducing wall structure in which both through holes are formed has an excellent function of collecting rainfall to the water-retaining base material, and therefore is preferable for supplementing water content consumed by plants with rainfall. That is, it is preferable for holding the water-containing load of the water-retaining base material, which is indispensable for reducing radiation transmission.

<82nd Embodiment>
The embodiment of the 82nd invention is the radiation transmission of the invention according to the 80th or 81st aspect, further comprising a skeleton that is installed inside the container and that maintains the shape of the plate material or the mesh-proof flame sheet as the container. It is a reduction wall structure.
The upper diagram (a) of FIG. 49 is a cross-sectional view showing the side surface of an example of this embodiment.
According to this structure, the hollow plate-like body 22 whose front, bottom and back forming the slope are made of polypropylene resin which is a thermoplastic resin is used with three corner hollow L-shaped joints 29 of the seventeenth invention. Is formed. The joint between the joint 29 and the hollow plate 22 is fixed with a screw.
In addition, the upper corner of the front surface of the hollow plate-shaped body 22 is formed by cutting the front thin plate and bending the cut. The rear end of the upper surface is fitted into the joint 29 and fixed with a screw of a fixing member. In addition, a plurality of through holes 13 for planting are formed in the front screen flameproof sheet 106. A through hole 13 for planting is formed in the hollow plate-like body 22 on the inner surface thereof at the same position as the through hole 13 for planting of the anti-netting flame sheet 106 and is bonded to the hollow plate-like body 22. In addition, a resin plate, which is the aggregate 102, is assembled in a skeleton shape in the region inside the hollow plate-like body 22 by using the bolts and nuts of the fixing member 16. An example of this skeleton shape is shown in the perspective views of FIGS. 50 and 53 and the sectional view of FIG.

In addition, the region inside the hollow plate-shaped body 22 is filled with a rock wool plate material 42 that is also a vapor phase portion and a water retention base material 6 that is mainly composed of rock wool and activated carbon. Then, planting through holes 13 having a diameter of 20 cm are provided at four places on the upper surface and plants 95 are planted. In addition, plants 95 are planted in a plurality of planting through holes 13 formed on the front surface. This free-standing radiation reduction wall structure has a height of 130 cm, a width of 100 cm, a bottom depth of 50 cm, and a top depth of 25 cm. The load is 480 kg when saturated with water. 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 substance existing in the land behind the back surface of the radiation transmission reducing wall structure is transmitted by radiation. Permeation to the front surface of the reduction wall structure can be sufficiently reduced, which is preferable. Water may be injected from the planting through holes 13. Further, it is preferable that rainfall also falls from the planting through holes 13 onto the water retaining base material 6 inside the radiation transmission reducing wall structure.

<Embodiment 83>
In an embodiment of the eighty-third invention, the plate material is a resin plate,
The radiation transmission reducing wall structure is an invention according to any one of 80th to 82nd, further comprising a flameproof sheet or a mesh flameproof sheet laminated on a surface of at least a partial region of the resin plate. FIG. 51 is a side sectional view showing an example of this embodiment.
According to this structure, the three hollow hollow L-shaped joints 29 of the seventeenth invention, which are made of aluminum, are used as the hollow plate-like body 22 whose front surface, bottom surface, and back surface forming slopes are made of polypropylene resin. Is formed. The joint between the joint 29 and the hollow plate 22 is fixed with a screw. In addition, the upper corner of the front surface of the hollow plate-shaped body 22 is formed by cutting the front thin plate and bending the cut. The rear end of the upper surface is fitted into the joint 29 and fixed with a screw of a fixing member. In addition, the bottom plate, the back plate, the top plate, and the front plate are formed by the hollow plate-like body 22, and the main material of the front surface is a flameproof sheet 41 which is a nonwoven fabric of aramid fiber and is formed inside the flameproof sheet 41. A plurality of through holes 13 for planting are provided at the same location in the hollow plate-like body 22. Further, in the hollow plate-shaped body 22 of the bottom plate, band-shaped through holes having a drainage function of surplus water are formed in the front thin plate and the back thin plate of the hollow plate-shaped body 22. A water-retaining base material 6 whose main material is rock wool is filled in a region of the upper surface of the hollow plate-shaped body 22 on which a non-woven fabric having activated carbon attached is laid. Then, a planting through hole 13 having a diameter of 20 cm is formed on the upper surface and a plant 95 is planted. In addition, plants 95 are planted in a plurality of planting through holes 13 formed on the front surface. The radiation transmission reducing component base material having the band-shaped through hole 11 of the ninth invention is provided below the side sectional view.

This base material is a hollow plate-like body, and a back thin plate and a front thin plate are laminated via a plurality of plate-like body ribs so that the plate-like bodies are installed substantially in parallel to form a drainage channel. The surplus water that falls from the bottom plate of the radiation transmission reducing wall structure provided on the upper surface can be received and the water can be passed to the target location of the drainage. Further, the radiation transmission reducing component base material and the bottom plate of the radiation transmission reducing wall structure are fixed at a plurality of positions by using bolts, washers, and nuts of fixing members. In addition, a water retention base material 6 for planting and a concrete board as an edge material are provided on the upper surface of the radiation transmission reduction component base material in front of the radiation transmission reduction wall structure. Thus, it is preferable that the radiation transmission reducing wall structure is connected to the radiation transmission reducing component base material because the stationary stability of the radiation transmission reducing wall structure having a low center of gravity is increased.
This free-standing radiation reduction wall structure has a height of 130 cm, a width of 100 cm, a bottom depth of 50 cm, and a top depth of 25 cm. The load is 480 kg in a water-containing saturated state. Due to the fusion of the total load, the load related to the depth width, and the base material that constitutes the invention, for example, it is released from the radioactive substance existing in the land in the rear portion (indicated by the arrow) from the back surface of the radiation transmission reducing wall structure. It is preferable that the amount of the applied radiation can be sufficiently reduced from being transmitted to the front surface of the radiation transmission reducing wall structure. Water may be injected from the planting through holes 13. Further, it is preferable that rainfall also falls from the planting through holes 13 onto the water retaining base material 6 inside the radiation transmission reducing wall structure.

<84th Embodiment>
In an embodiment of the eighty-fourth invention, the plate material is a hollow plate-shaped body in at least a partial region,
The hollow plate-like body is a radiation transmission reducing wall structure according to any one of the 80th to 83rd inventions, which includes a plurality of ribs and a front thin plate and a back thin plate laminated via the plurality of ribs. ..
In each of the above 80th to 83rd inventions, the radiation transmission reducing wall structure having the hollow plate-shaped body 22 is shown in each drawing. The hollow plate-shaped body 22 is the hollow plate-shaped body of the ninth and tenth inventions. That is, the back thin plate 3 and the front thin plate 2 are laminated via the plurality of plate ribs 4 and the plate members are installed substantially in parallel to each other, and the drainage channel 96 is formed. Is. And, or, a back thin plate and a front thin plate having a plurality of through-holes are formed of a hollow plate-shaped body laminated via a plurality of ribs, and the ribs 4 are plate-shaped bodies, The plate-like bodies are installed substantially parallel to each other to form the drainage channel 96, the through-holes are the band-like through-holes 11, and the plurality of band-like through-holes 11 are formed so as to intersect the plate-like bodies. The radiation-transmission-reducing constituent base material is characterized in that In the hollow plate-shaped body according to the tenth aspect of the 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 cylindrical, cylindrical, prismatic, truncated cone, and truncated pyramid shapes. A hollow plate-like body laminated via any one of a rib and a ring-shaped rib, and a drainage channel 96 is formed between the front thin plate 2, the back thin plate 3 and any one of the ribs. It is a radiation transmission reducing constituent substrate.
The materials and constituent features of the hollow plate-like body 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 molding a hollow plate-shaped body with a polypropylene resin that is a thermoplastic resin, dark blue, blue, green, black, gray, One of brown and red pigments is added to the polypropylene resin, but semi-transparent or transparent molding having an insulating effect may be selected. Since it can be assumed that the polypropylene resin having insulation suppresses electromagnetic waves, it is preferable to select a resin plate made of a thermoplastic resin for the radiation transmission reducing wall structure. The above is one example of this embodiment, and does not limit the material forming the hollow plate-shaped body.

<85th Embodiment>
The embodiment of the eighty-fifth aspect of the invention is a partial bottom region inside the container, a partial lower region of the frame base material installed inside the container, and a lower surface of the bottom plate member arranged so as to form the container. The hollow plate-shaped body substrate, the metal substrate, the concrete substrate, the stone substrate, the resin substrate, the mineral substrate according to the eighth to tenth or eighty-fourth inventions in a partial region or in any region outside the region Place one of the materials,
The frame base material or the bottom plate material arranged in the container and the hollow plate material base material, the metal base material, the concrete base material, the stone base material, the resin base material, or the mineral base material, which are connected by a joining or fixing member. The radiation transmission reducing wall structure according to any of the 80th to 84th inventions, which may be provided. The upper diagram (a) of FIG. 52 is a cross-sectional view showing an example of this embodiment.

According to this construction, the hollow plate-like body 22 whose front, bottom and back surfaces forming the slope are made of polypropylene resin which is a thermoplastic resin is used for the three corner hollow L-shaped joints 29 of the seventeenth invention. Is formed. The joint between the joint 29 and the hollow plate 22 is fixed with a screw. In addition, the upper corner of the front surface of the hollow plate-shaped body 22 is formed by cutting the front thin plate and bending the cut. The rear end portion of the upper surface is fitted into the joint 29 and fixed by the screw of the fixing member. The front flame-proof sheet 41 is provided with a plurality of through holes 13 for planting. A through hole 13 for planting is formed in the hollow plate-like body 22 on the inner surface thereof at the same position as the through hole 13 for planting of the flameproof sheet 41, and is bonded to the hollow plate-like 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 formed in the water repellent heat insulating material 42 made of plate-shaped rock wool shown on the slope of the figure. A resin plate, which is the aggregate 102, is assembled in a frame shape using bolts and nuts of the fixing member 16 in the region inside the water repellent heat insulating material 42. An example of this frame structure is shown in the perspective view of FIG. As shown in the skeleton structure in the perspective view, a rod-shaped reinforced concrete substrate 107 having a width of 20 cm and a length of 2 m is wound around the aggregate 102 with a wire rope made of stainless steel 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 substrate 107 may be provided long from the bottom region range of the frame structure to the outer region. Further, a box body 37 for accommodating the heavy object 109 is formed with a thickness of about 30 cm on the upper surface of the hollow plate-like body 22 which is the bottom plate of the radiation transmission reducing wall structure.

Instead of the box 37, a resin container filled with a liquid such as water may be installed in the bottom region of the frame structure. In addition, the water-retaining base material 6 whose main material is rock wool is filled in the area inside the water-repellent heat insulating material 42 and the upper surface area of the box 37. Further, a watering tube is provided in a perforated pipe in the upper part of the frame structure, and planting through holes 13 having a diameter of 20 cm are formed in a plurality of places on the upper surface to plant plants 95. In addition, plants 95 are planted in a plurality of planting through holes 13 formed on the front surface. Note that FIG. 6B is a perspective view showing the box body 37. The material forming the box 37 is the hollow plate 22 having the band-shaped through holes 11. The box body 37 contains iron ore for increasing the low center of gravity more than the 80th to 84th radiation reduction wall structures. This free-standing radiation reduction wall structure has a height of 130 cm, a width of 100 cm, a bottom depth of 50 cm, and a top depth of 25 cm. The load is 630 kg when saturated with water. Due to the total load, the load related to the depth width, and the base material that constitutes the invention, for example, the dose emitted from the radioactive substance existing on the land behind the back surface of the radiation reduction wall structure is reduced. Permeation to the front surface of the wall structure can be sufficiently reduced, which is preferable. Water may be injected from the planting through holes 13. Further, it is preferable that rainfall also falls from the planting through holes 13 onto the water retaining base material 6 inside the radiation transmission reducing wall structure. Note that FIG. 52 shows an example of a configuration in which planting is performed, but if the through hole for planting is closed with a plate material or the like after being hydrated by the water-retaining base material, the aforementioned load of 630 kg is almost permanent. Secured in. If this structure has a low center of gravity as in the present invention, it is a load that is preferable for wind resistance and theoretically does not collapse even in a strong wind with a wind speed of 40 m. Therefore, as a self-supporting radiation reduction wall structure. preferable.

FIG. 53 is a perspective view showing an example of an embodiment related to the 85th invention.
According to this structure, the upper surface is curved as shown in FIG. This is an example of a structure that reduces the wind pressure on the radiation reduction wall structure. Further, as shown in the drawing, if the bottom surface of the front surface is formed to be wide forward, the center of gravity becomes lower, which is preferable as a measure against wind pressure. Further, FIG. 2B shows an example of a mode 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. Note that the iron plate 103 may be replaced with a plate material such as a resin plate, a wooden plywood, or a rubber plate. In addition, the drawings shown in (a) to (f) show side cross-sections of the radiation transmission reducing wall structure which is preferably made with a height of 1 m to 2 m and a bottom width of 1 m to 2 m. The radiation transmission reducing wall structure having such a shape is preferable because it can be a structure that can withstand strong wind pressure. The height is not limited, but it is desirable to design with wind pressure measures in mind.

FIG. 54 is a perspective view showing an example of an embodiment related to the 85th invention.
Below the front surface of the radiation transmission reducing wall structure shown in the perspective view, a protrusion structure integrated with the structure is formed. A through hole 13 for planting a plant is provided in the front structure, and a plant 95 is planted. Further, a hollow plate 21 made of concrete is fixed to the frame of the radiation transmission reducing wall structure under the bottom surface of the radiation transmission reducing wall structure with bolts, nuts, and wire ropes of fixing members. In addition, a framework for connecting another radiation transmission reducing wall structure is shown on the side. Further, in the lower diagram (b), the planting surface is formed on the upper surface, the front surface, the projecting structure upper surface, and the side surface, and the notch 36 and the planting through hole 13 of the impenetrable material 41 covered on the surface of this structure. It is the perspective view which showed that it was opened in the glass fiber textile and the plant is planted. In addition, you may choose to open a notch 36 or the through-hole 13 also in the back surface, and to plant a plant.

<86th Embodiment>
According to an embodiment of the 86th invention, at least two of the radiation transmission reducing wall structures are connected to a side surface of the same other radiation transmission reducing wall structure. Is a radiation transmission reducing wall structure.
The upper part (a) of FIG. 54 is a perspective view showing an example of this embodiment.
It is possible to construct the radiation transmission reduction wall structure as one structure long in the lateral direction and install it at a place where radiation shielding is desired. However, if the radiation transmission reduction wall structure is manufactured with a width of 3 m, for example. A plurality of units can be connected and installed at a place where radiation shielding is desired. To connect a plurality of units, the side faces of the respective radiation transmission reducing wall structures may be pressed to form a horizontally long wall. Further, a method of fixing and connecting the frameworks of the adjacent radiation transmission reducing wall structures and the frameworks using bolts, nuts, wire ropes or the like of the fixing members may be used. Alternatively, a method of fitting a plate member formed on the side surface using an I-shaped joint made of aluminum and fixing it with a fixing member such as a screw screw may be used. Further, a method of fixing the plate material formed on the side surface using a perforated metal plate of the fixing member, bolts, nuts, or the like may be used. Further, the standard and design of the radiation transmission reducing wall structure to be connected may be arbitrarily designed. In addition, you may choose to carry in the component of a radiation transmission reduction wall structure to the location where a radiation shielding is desired, and assemble it, and it is completed and installed in a wall structure. In addition, by pouring water from the through-holes formed in the completed radiation reduction wall structure and the water-retaining base material is saturated with water, the radiation reduction wall structure becomes a stable load and the radiation transmission is reduced. It is also useful for reduction.

<Other Embodiments>
In FIG. 14, the left and right surfaces of the water retention base material 6 are sandwiched by the water shield plates 19, and the mesh 20 is laminated on the surface of the water shield plate 19. The water retaining base material 6, the water shield plate 19, and the mesh 20 are fixed by the fixing member 16. It is the perspective view which showed the structure fixed and integrated.
When this structure is used as a wall, it is possible to reduce the transmission of radiation due to the water content of the water-retaining base material 6, and it is useful for attaching to the greening structure on the wall surface so that the vine plants can grow. is there.

The upper diagram (b) of FIG. 15 is a diagram showing a partial cross section of the structure shown in the lower right diagram (a). The bolts of the fixing member 16 are attached to the net 20 and the water shield plate 19 shown on the right side. The figure shows a state in which the fixing member 16 is inserted into a hole provided as a through hole, the left water shield plate 19 and the net 20 are penetrated, and the nut of the fixing member 16 is tightened. It should be noted that nuts for preventing external pressure from being applied to the water retaining base materials 6 located inside the left and right water shield plates 19 are provided on the inner side surfaces of both the water shield plates 19.
Further, as shown in the perspective view in the lower part (a), 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 ribs. The plate-like body is used as the water blocking plate 19. Then, the left and right surfaces of the water retention base material 6 are sandwiched by the water shield plates 21, the net 20 is laminated on the surface of the water shield plate 19, and the fixing member 16 fixes the water retention base material 6, the water shield plate 19, and the net 20. Is fixed and integrated.
It is preferable to form the water shield plate in the shape of a hollow plate because it has a heat insulating effect and the strength of the structure increases. Then, it is possible to reduce the heat load on the water-retaining base material 6 with respect to the water content, and suppress the increase in heat of the structure. That is, it is preferable for the growth environment of plants because it suppresses dry evaporation of water and high heat. Further, since the water-holding base material 6 has a better water retention capacity due to the heat insulating effect, it leads to a stable reduction of radiation transmission, which is also preferable.

FIG. 17 shows that the hollow plate-shaped body 1 filled with the water-retaining base material 6 sandwiched between the front thin plate 2 and the back thin plate 3 is provided on the upper surface of the ground 49 contaminated with the radioactive substance in the lowermost layer, and the upper surface thereof is provided. A hollow underdrain plate 22 (corresponding to a specific example of the configuration of the ninth invention) having a plurality of strip-shaped through holes 11 is laminated on the surface thin plate 2, and an activated carbon-adhering water-permeable sheet 17 is laminated on the upper surface thereof, and further on the upper surface thereof. The structure in which the soil 33 is formed and the turf grass 57 is planted on the uppermost surface is shown. This cross-sectional view shows a state in which the rainfall 92 permeates the activated carbon-adhered water-permeable sheet 17 so as to reach the soil from the lawn surface, and then falls onto the hollow underdrain plate 22.
According to this structure, the radiation shielding rate is stabilized due to the water content filled in the water retaining base material 6 and the weight (mass) of the water retaining base material 6 and the hollow plate-shaped body 1. For example, if the thickness of the hollow plate-shaped body 1 is 10 cm, the total 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 about 50%. It is estimated that This weight can be retained permanently without being affected by the surrounding environment. Further, a large amount of mineral fibers excellent in water retention are laminated on the soil laminated on the upper surface, and depending on the thickness of the soil, for example, if it is 10 cm, it will be about 140 kg in a soil water-saturated state.

That is, the total weight of the weight of the lower hollow plate-shaped body 1 and the weight of soil is 240 to 270 kg/m ^2, and the structure of this load (mass) load is on the ground contaminated with radioactive substances. Since it is provided on the upper surface, the radiation can be shielded by about 75%. However, since the plant consumes the water content of the soil, the soil weight is not always constant. Therefore, the minimum load (mass) load of the soil weight is a fixed load of the soil and the underdrain plate only when the water content is 0. Therefore, if the soil weight is 50 kg, the hollow plate-shaped 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, the fixed load is 150 to 180 kg. It is estimated that the radiation shielding rate becomes about 60% under this load. However, this value is based on a soil water content of 0, and it is more appropriate to calculate the radiation shielding rate by estimating that the water content weight is added to this value. As described above, this configuration is useful for radiation shielding.
In this structure, the activated carbon-adhered water-permeable sheet 17 is laminated. Since this activated carbon is an ultrafine-grained activated carbon having a particle size of 990 μm or less, a sufficient adsorption effect of radioactive substances can be expected, and again. Zeolite, which is both a porous desiccant and a fertilizer, may be mixed with the soil. The activated carbon and the desiccant are expected to have an effect that the radioactive substance released from the ground of the lowermost layer, which is contaminated with the radioactive substance, is adsorbed when passing through the hollow plate-shaped body 1 and the hollow underdrain plate 22. ..

FIG. 18 shows a hollow plate-shaped body 1 in which a hollow plate-shaped 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, and the water-retaining base material 6 is filled therein. The activated carbon-adhering water-permeable sheet 17 was laminated on the upper surface of the surface thin plate having the band-shaped through holes 11 formed in the body 1, the soil 33 containing a large amount of mineral fibers was formed on the upper surface, and the grass grass 57 was planted on the uppermost surface. The structure is shown. In this cross-sectional view, the ultrafine-grained activated carbon-adhered water-permeable sheet 17 having a particle size of 990 μm or less is permeated through the water so that the rainfall 92 can reach from the lawn surface to the soil. 7 shows a state in which the water is drained as surplus water 58 from an unclosed portion of the partially closed end of the and is flooded into the hollow underdrain plate 22. An edge material 55 is installed on the side surface of the soil 33. With this configuration, it is possible to obtain the effect of reducing the transmission of radiation emitted from the ground polluted with radioactive substances, and to facilitate drainage treatment in the event of heavy rainfall, etc. It is useful for reconstruction greening. It is also useful because it enables the production of crops on farmlands in areas that are contaminated with radioactive substances.

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

The amount of water stored in the hollow underdrain plate 22 can be calculated from the hollow volume of the hollow underdrain 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 has 0.1 m ³ Can hold water. That is, since the weight of this water is 100 kg/m ² , the transmission of radiation can be reduced to about 50%. According to this structure, since the hollow underdrain plate 2 is laminated in two layers, the transmission of radiation can be reduced to about 25%. In addition, when the soil water content weight is added to the water retention weight retained in the hollow underdrain plate, it is sufficiently conceivable that the transmission of radiation is 20% or less. This configuration, which enables plant cultivation and reduction of radiation transmission, is useful for reconstruction greening in areas contaminated with radioactive materials. In addition, in consideration of the thickness of the soil 33 and the water content, selection of plants whose roots do not reach the hollow underdrain 22 and plants with relatively low water consumption other than turfgrass are selected as soil 33. It is also preferable to plant. Of course, it is also useful for agricultural land in areas contaminated with radioactive materials.

FIG. 20 is a diagram showing an example of a configuration in which the radiation emission of a decontamination product contaminated with a radioactive material is reduced and at the same time a green space is created.
As shown in the sectional view of the upper part (a), in this structure, the hollow plate-shaped body 1 is provided in the lowermost layer, and the hollow underdrain plate 22 is provided on the upper surface thereof. Radiation emission wastes 59 (plural bags) are piled up in a region inside the peripheral edge of the plane of the hollow underdrain plate 22. The hollow plate 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. Further, an ultrafine-grain 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, a soil 33 containing a large amount of rock wool made from blast furnace slag is formed. The seeds of turfgrass 57 are sown on the created soil 33 to make a lawn. Alternatively, plants other than the turfgrass 57 are planted in the soil 33 to complete the greening. This greening of the top surface of the radiation-emitting waste can reduce or completely shield the radiation emission and prevent the radiation-emitting waste 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-emission waste 59, the weight of the soil 33 and the weight of the hollow plate-shaped body 1 having a water-containing function should be taken into consideration, and the top surface of the radiation-emission waste should be greened. It is good practice.

In the configuration of this figure, the substrate weight 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 approximately 90% of the dose from radiation emitting waste. In addition, since a large amount of rockwool fiber is contained in the soil in this green space, the soil has a characteristic that the soil is integrated and the occurrence of a separation phenomenon is suppressed, and the soil is prevented from collapsing and drainage is good. Further, since the hollow underdrain plate 22 that is not destroyed by the load of a large vehicle is provided in the lower layer, the load of soil, which becomes heavy due to the water content, is withstood, and excess water is also drained from the drainage channel. Compared to the embankment green space where the slope angle of general soil is large, the surface of the green space is hardly collapsed or washed away by heavy rain, so this structure of the green space is useful.
Further, FIG. 6A is a cross-sectional view showing a state in which the radiation-emitting waste is piled up, but this configuration is also useful in a storage place where the radiation-emitting waste is not piled up. Further, in this green space structure, it is also preferable to provide the lowermost hollow plate-shaped body 1 on the upper surface of the ground or the like contaminated with radioactive substances.

The intermediate view (b) is a cross-sectional view showing the form related to the upper view (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 strip-shaped through hole is formed, and is installed on the upper surface of the soil 33. Radiation emission wastes 59 (a plurality of bags) are piled up in a region of the upper surface of the installed hollow underdrain plate 22 from the periphery to the inside. The hollow plate 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. Further, an ultrafine-grain 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. A soil 33 containing a large amount of mineral fibers is formed on the upper surface thereof. On the formed soil 33, seeds of turf grass 57 are sown to make a lawn state, or plants other than the turf grass 57 are planted in the soil to complete greening. Since the band-shaped through hole forming drain pipe 23 is provided in this configuration, drainage of rainwater or the like from the green ground to the lower layer soil 33, and further from the hollow underdrain plate 22 to the band through hole forming drain pipe 23 becomes smoother. It is preferable that the water flow guide of the waste water is passed to the drain pipe connected to the band-shaped through hole forming drain pipe 23.

The lower diagram (c) is a cross-sectional view showing the configuration related to the upper diagram (a) and the intermediate diagram (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 strip-shaped through hole is formed, and is installed on the upper surface of the radioactive substance-contaminated ground 48. Radiation emission wastes 59 (a plurality of bags) are piled up in a region of the upper surface of the installed hollow underdrain plate 22 from the periphery to the inside. The hollow plate 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. Further, an ultrafine-grain 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. A soil 33 containing a large amount of mineral fibers is formed on the upper surface thereof. On the soil 33 thus formed, seeds of turfgrass are sown to be in a lawn state, or plants other than turfgrass are planted in the soil to complete 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 additionally serves to fix the radioactive material contained in the land.

The upper diagram (a) of FIG. 21 is a perspective view showing an example of the configuration of the twenty-first invention. Reference numeral 17 is a polyester spunbonded non-woven fabric with a width of 45 cm and a length of 158 cm (a basis weight of 40 g/m 2 ), and the other has ultrafine-grain activated carbon with a particle size of 990 μm or less attached to the polyester spunbonded non-woven fabric. It is a polyester spunbonded non-woven fabric (weight per unit area: 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.
This lattice may be mixed with a polymer water-absorbent resin and ultrafine-grained activated carbon having a particle size of 990 μm or less in the zeolite. Alternatively, 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 view (b) is also a top view showing an example of the configuration of the 40th invention. The hexagonal lattice 99 on the upper surface is a biodegradable sheet 87 having a width of 200 cm and a length of 200 cm. The seeds 34 of the plant are low-temperature heat-welded together with the biodegradable sheet 87 and the wafer sheet 88 between the sheet 87 and the back surface wafer sheet 88. The lower surface has a sheet 17 to which ultrafine activated carbon particles having a particle size of 990 μm or less are 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. (c), 200 g of zeolite 90 having a particle size of 990 μm or less, 10 g of powder of the polymeric water-absorbent resin 100 of the water-retaining base 6, and 500 g of rock wool granular cotton 101, It is enclosed.
The number of lattices in which the biodegradable sheet 87 having the seeds 34, the wafer sheet 88 and the nonwoven fabric 17 are bonded together is 36. The weight of this constituent sheet is 29 kg in the dry state and 54 kg/m ² in the water-containing saturated state. This dry weight has no problem in workability. Also, this sheet can be cut into a plurality of sheets for use.
This sheet is composed of a water-retaining base material that has both a water-containing property and a porous material that are useful for shielding and fixing radioactive substances existing in forests and highway slopes, etc., and steadily germinates plant seeds. It is preferable because it can be grown.
In addition, the biodegradable sheet 87 and the wafer sheet 88 have a high decomposition rate by microorganisms and dissolve in water to be 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 upper part (a), in this structure, the nonwoven fabric sheet 28 having a resin fiber amount of 12 to 20 g/m ² is on the upper surface, and ultrafine-grain activated carbon having a particle diameter of 990 μm or less is attached. Seat 17 is at the bottom. The non-woven sheet 28 and the lowermost sheet 17 are sewn at the joint portion 29 to form the bag body 32. From the lower layer inside the bag body 32, soil 33 made of mulch as a main material is filled, a water retention base material 6 made of rockwool as a main material is laminated on the upper surface thereof, and mulch as a main material is formed on the upper surface thereof. The soil 33 is laminated, and the sheet 17 to which the ultrafine-grain activated carbon having a particle diameter 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 matter state. Then, when water is poured into the non-woven fabric sheet 17 on the upper surface of the bag body, the water-retaining base material 6 and the soil 33 contain water. The weight of the hydrated bag is 120 kg when the water is saturated. It is estimated that the radiation shielding rate can be suppressed to 50% by placing this bag on the ground or the upper surface of the fallen leaves contaminated with radioactive materials, and the seeds of the bag will grow. It is also preferable because it can restore the green.

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

Also, in addition to soil elements where plant roots grow, carbon, oxygen, and nutrients, mineral fiber soil is not affected by microorganisms and sustains water content for a long time, so it is possible to protect the soil of green spaces and forests contaminated with radioactive materials. It is preferable to place the bag body 32 on the upper surface of the leaf fall surface.
The planting bag body 32 having this structure can be applied to the slopes of roads not polluted with radioactive materials, the ground surfaces of green spaces and forests, and the upper surfaces of deciduous surfaces.
Further, the lower diagram (c) is a perspective view of a configuration in which the bag body 32 in the upper diagram (a) and the middle diagram (b) is replaced with a packaging body 35 to form the planting hole 13. The package 35 is 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 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 sectional views showing an example of the bag body 32 related to FIG. Plant seeds 34 are placed between the nonwoven fabric sheet 28, which is the material of the bag, and the soil 33. A layer under the soil is laminated with a water retaining base material 6. This water retaining base material is granular wool 101 of rock wool fiber, and its thickness is 15 cm. Then, the bag-shaped nonwoven fabric sheet 28 is shown as the lower layer of the water-retaining base material.
In the drawing shown in (b), plant seeds 34 are sandwiched between two non-woven fabric sheets 28, which are the material of the bag. The through holes 13 for planting plant seedlings are formed in the two nonwoven fabric sheets. Underneath it is a layer of soil that is useful for the germination of plant seeds. A layer below the soil layer is laminated with a water retention base material 6 for storing a lot of rainfall. The water retention base material is rock wool fiber granular cotton 101, and the thickness thereof is 20 cm. Then, the bag-shaped nonwoven fabric sheet 28 is shown as the lower layer of the water-retaining base material. The bag has a width of 50 cm and a width of 50 cm, a dry weight of 18 kg, and a water content of about 90 l.

That is, the weight of this bag is 118 kg (saturated with water). This weight is useful because it is estimated that the radiation shielding rate is suppressed to 50%. Further, since the nonwoven fabric sheet 28 of the upper surface layer has two layers, the water content evaporation amount of the water retaining base material is also suppressed, which is preferable. This bag is preferable because it can be provided in a wide range because it can realize cost reduction. In addition, the feature of this configuration is that it is useful for the restoration of "green" because the seeds and saplings of plants can be grown. Furthermore, an ultrafine-grain activated carbon-adhered non-woven fabric sheet having a particle size of 990 μm or less is laid at a place where the bag body 32 is placed on a cloth contaminated with radioactive substances. It is preferable to select a method of laying or seeding a mixture of ultrafine-grain activated carbon or zeolite having a particle size of 990 μm or less, or ultrafine-grain activated carbon or zeolite having a particle size of 990 μm or less. By this method, activated carbon, zeolite adsorbs radioactive substances, and it is possible to predict that scattering of radioactive substances adsorbed by the water content of the bag and separation by water can be predicted, and a radiation shielding effect can also be obtained. It is useful because it can. Further, if the method of placing the underdrain board of the ninth invention on the place where the activated carbon or zeolite is seeded and placing the bag body 32 side by side on the upper surface thereof, the effect of further fixing the radioactive substance and shielding the radiation is enhanced. preferable. In addition, the bag body 32, which is formed by laminating the underdrain board or the board body of the ninth invention, which is made of a thermoplastic resin having a thickness of 1 mm to 15 mm between the water retention base material 6 and the non-woven fabric sheet 28, is contaminated with radioactive materials. 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 edge portion of the resin fiber woven fabric 68 having a woven surface with unevenness is closed and welded 18 to form the bag body 32. A water injection port 25 is provided at a part of the closed welding 18 portions of the peripheral portion, and a lid 8 for closing the water injection port after water injection is provided. The inside of the bag body 32 is filled with rock wool fiber made of blast furnace slag as a water-retaining base material. Rockwool is generally provided on the market for the purpose of use as a heat insulating material, and has a structure in which at least 95% of air, which is indispensable for heat insulation, exists in the volume of rockwool. That is, when water is poured into rock wool, water is contained in these voids. Therefore, for example, 1 m ³ of rock wool contains approximately 1 ton of water. The fiber woven fabric of the bag body 32 is a woven fabric made of polyethylene, and its shape is woven so that the surface is uneven. If the seeds of the plant mixed with soil or sand are sown in this uneven shape, or if the seed, stabilizer, curing material, and fertilizer are mixed and sprayed with the soil, the seeds become uneven and difficult to move. In other words, the seeds are less likely to run off due to precipitation, and the seeds can easily utilize the water contained in the water-retentive base material filled inside through the gaps between the fibers of the bag body 32. Preferably, this bag 32 is useful for greening. Further, since the amount of rainfall that permeates the inside of the bag body 32 can be expected to be large due to the uneven shape, this uneven woven fabric is preferable for collecting rainfall and sprinkling water.

When the bag body 32 increases in weight by water injection or precipitation, the reduction in radiation transmission can be obtained by the load. The bag 32 has an average thickness of 10 cm, a width of 60 cm, and a width of 150 cm, and the weight in a water-containing saturated state is about 120 kg. It is estimated that the radiation transmittance is about 50% at this weight, but it is desirable to stack a plurality of bags to reduce the transmittance. 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 middle sectional view (b) and the lower sectional perspective view (c), the water retention base material layer 6 is laminated from the lower layer inside the bag 32, and the soil layer 33 is laminated on the upper surface layer to form the soil layer. It shows a configuration in which plant seeds 34 are placed between 33 and the back of the top fabric 68. 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 the operation of sowing seeds is not required.

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, and the end of the hollow underdrain plate 22 is opened at the opening. The back thin plate is left, and the bent end is inserted by cutting the front thin plate and the ribs. The left and right hollow underdrain plates 22 are connected to the drain pipe 23, and the hollow plate 21 is provided at a position on the upper surface where the surplus water of the rainfall 92 falls from the drainage channel 43 into the drain pipe 23. Then, the water-permeable sheet 17 to which the 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, and the soil 33 is formed 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 drain pipe 23. The upper part (a) is a cross-sectional view of this configuration.

According to this configuration, since the hollow underdrain plate 22 is embedded in a planar shape, even if there is a heavy rainfall such as a heavy rain of guerrillas that concentrates in a short time, it does not cause water retention on the soil surface having water retention. Smoothly drain excess water from the soil. For this reason, this structure can prevent the water pool phenomenon on the ground surface and is also useful for urban infrastructure development.
Then, it is possible to reduce the transmission of the radiation emitted from the soil contaminated with the radioactive substance on the lower surface of the hollow underdrain plate 22 to the surface of the earth due to the load of the soil having the water retention property and the hollow underdrain plate. , Even more useful. In addition, the lower diagram (b) is a perspective view showing a state in which the hollow underdrain plate 22 having the water-permeable sheet 17 to which activated carbon is adhered adhered on the surface is vertically inserted into the drainage pipe.

With this configuration, radioactive substances floating in the air, radioactive substances adhering to rainfall, and other pollutants can be adsorbed. It is also useful because it is possible to reduce the transmission of the radiation of the radioactive substance to the back surface of the hollow underdrain plate 22 by the adsorption effect. In addition, in this configuration, the band-shaped through holes 11 are formed, and the inadvertent or flame-retardant sheet 17 is provided in some places on the upper surface of the hollow underdrain plate 22 to which the water-permeable sheet 17 to which activated carbon is attached is attached. , The sheet 17 is provided on the upper surface of the hollow underdrain plate 22 by using a fixing member by providing a cutout portion in the lateral direction or the diagonal direction, and leaving a region below the cutout portion where soil is filled. When it is pasted, and the soil is filled in the notch, and the plant is planted, the plant grows due to the drainage effect and the ventilation effect of the hollow underdrain plate 22 and the adsorption effect of the gases released from the roots by the activated carbon. Therefore, it is useful including the effect of adsorbing the pollutants described above. In this configuration for planting a plant, it is more preferable that the water-permeable sheet 17 to which activated carbon is attached is also attached to the back surface where the band-shaped through holes 11 are 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 in the figure. In this figure, the form before the lid 8 covering the upper part of the irrigation pipe 15 is provided on the upper parts of the front thin plate 2 and the back thin plate 3 is shown. With this configuration, the water discharged from the irrigation pipe 15 does not leak outside. In addition, the water discharged from the irrigation pipe 15 passes through each of the band-shaped through holes 11 formed in the hollow underdrain plate 22 at regular intervals and falls so as to completely cover the surface of the hollow underdrain plate 22. To do. This structure in which water is distributed and falls is prepared in case the amount of water contained in the water-retaining base material is reduced, and it is also for facilitating water injection into the water-retaining base material. It is useful. The greening of the wall structure having this configuration is useful because it can supplement the water consumed by the plant when rainfall cannot be expected.

In the configuration shown in the cross-sectional view of FIG. 27, the back surface is provided with a water-containing hollow plate 1 having no through holes, and the front side surface thereof is a hollow underdrain plate 22, an activated carbon adhering sheet 17, soil 33, a water-repellent heat insulating material. Forty-two rock wool plates are provided on each side by being pressed. On the front surface of the rock wool plate-shaped body, there is provided a non-combustible material 41 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, the bolt, which is the fixing member 16, is made to communicate from the non-combustible material 41 arranged at the forefront to the water-containing hollow plate-shaped body 1 at the back surface, and the washer and the nut are respectively used. Attach it to the place.
A hollow plate 21 is provided between the activated carbon adhering sheet 17 and the water-repellent heat insulating material 42, and bolts of a fixing member are passed through the hollow of the hollow plate 21 to fix the base material of each layer using washers and nuts. Has been done.
The greened body having a wall structure with this configuration can reduce the transmission of radiation due to the weight of the water-containing hollow body 1, the weight of the hollow underdrain plate 22, and the weight of the soil containing water. In addition, since the activated carbon adhering sheet 17 is provided, it is 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-shaped body 1, it is useful because a 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.
On the soil side surface of the water-containing hollow plate-shaped body 1 shown in this configuration, a base material having a band-shaped through hole 11 is selected. Therefore, this structure is preferable because it forms a soil structure that requires drainage and aeration that are essential for plant growth.

FIG. 29 is an exploded perspective view of the portion (a) shown in FIG. 27. As described with reference to FIG. 27, this partial view has a plurality of through holes 12 for planting a plant formed in the noncombustible material 41 placed on the front surface. In this example, five planting through holes are provided, but the number is not limited to this number. Further, although the fixing members 16 are provided at four places, the number and the position may be arbitrary. Further, the through hole 12 for planting is opened at the same position as the front surface in the heat insulating material 42 placed on the back surface. The soil 33 is arranged on the back surface thereof, the activated carbon adhering sheet 17 is provided on the back surface thereof, and the hollow underdrain plate 22 having the band-shaped through holes 11 formed therein and the water-containing hollow plate body 1 are arranged on the rear surface thereof. .. As another form different from FIG. 27, this structure can be embodied in a form of a greening structure which is fitted into an outer frame made of a material such as resin, metal or wood and is integrated by using a fixture. ..
In the configuration shown in the perspective view of the following figure (b), in the configuration shown in the above figure (a), the non-combustible material 41 provided on the front side has through holes 12 opened for planting, and a preferable metal for the growth of vine plants. A three-dimensional linear pedestal 44, which is a three-dimensional rod, is fixed by a screw of the fixing member 16, and a pedestal 45 capable of filling soil is fixed by the fixing member 16 diagonally below. According to this configuration, such two types of pedestals are arranged on the front surface of the wall structure, so that plants having different vegetation forms, for example, climbing plants and trees can be planted. In addition, since it is possible to plant flowers on the same surface as the vines and trees, it is preferable in terms of the variety of greening walls.

The structure shown in the cross-sectional view of FIG. 30 is a wall greening structure in which the structure (a) and the box-shaped structure (b) shown in FIG. 27 are vertically integrated. This configuration corresponds to a specific example of the configuration of the eighteenth invention and is configured on the box-shaped side wall (hollow underdrain 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 with the bolts, nuts, and washers of the fixing member 16. Then, metal stakes 46 provided with rust prevention that are driven into the ground are attached to the hollow underdrain plates 22 on the front surface and the back surface of the box-shaped body (b), and are joined and fixed by the bolts of the fixing member 16. The box-shaped body (b) is filled with soil 33.
The wall structure greening body having this configuration is useful because it is possible to reduce the transmission of radiation emitted from the land whose back surface is contaminated with radioactive material to the front surface area of the wall. Further, by integrating the soil 33 of 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. Further, since it is possible to plant middle trees and tall trees in the box-shaped body (b), it is suitable as a greening 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 by 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 formed on the back surface of the wall structure greenery, the ribs, and the space surrounded by the ribs (see (b)). Although not shown in the figure, a stainless steel plate, an aluminum plate or a 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 its diameter is at least 5 mm or more. If the load of the wall structure greenery is 100 kg to 150 kg/m ² , the diameter of the stainless wire rope is 7 mm to It is preferable to configure the one having a diameter of 10 mm. Further, the number of stainless wire ropes may be arbitrarily set so as to support the load of the wall structure greenery. This installation means is preferable for the self-supporting greening radiation shielding wall and the self-supporting greening wall.

In the configuration shown in the cross-sectional view of FIG. 32, the wall structure greening body is installed using the wire rope 51 shown by the constituent material of FIG. According to this installation method, connecting holes are formed at predetermined positions in the hollow underdrain plate 22 having a thickness of 15 mm and the water-containing hollow plate-shaped body 1 having a thickness of 35 mm formed on the back surface of the wall structure greenery body. Stainless steel U-bolt (fixing member 16) is inserted into the connecting hole, and the stainless steel wire rope with a diameter of 7 mm is pressed into the U-bolt, and the U-bolt and stainless wire rope are connected using washers and nuts. And is fixed. In addition, the water retention base material 6 provided on the front surface of the hollow underdrain plate 22, the heat insulating plate 42, and the inactive material 41 are the hollow water retention substrate 6 provided by combining the hollow underdrain plate 22 and the water-containing hollow plate-shaped body 1. Bolts are passed through the hollows of the plate 22 and fixed to the inoperative material 41 on the front surface and the hollow plate 1 for water content on the back surface with washers and nuts. In addition, a long resin plate or a metal rod in which a through hole for connecting the above-mentioned bolt is formed on the back surface of the water-containing hollow plate-shaped body 1 is provided in the vertical or horizontal direction of the wall structure greening body, and the bolt, washer, The wall structure greening body may be integrated using a nut.
Further, the number of stainless wire ropes, the number of fixing members 16 and the connecting positions may be arbitrarily set so that the wall structure greenery can support the earthquake and storm. This installation means is preferable for the self-supporting greening radiation shielding wall and the self-supporting greening wall. It can also be used for structures other than those mentioned above.

FIG. 33 is a sectional view and a perspective view of the embodiment showing the 55th invention.
In the configuration shown in the top view of the upper diagram (a), the non-woven fabric sheet 28 is placed as shown in the figure, and the water-retaining base material 6 is placed on one side of the upper surface of the non-woven fabric sheet 28 from the substantially central position (shown by the dotted line). Is placed. Joints 29 are provided on the left and right sides thereof, and joints 29 are also provided in places between them. In addition, the water-retaining base material 6 placed on the non-woven fabric sheet 28 shown in this top view (a) is wound so that its end portion becomes a spiral shape 30, and a wound object 31 is shown in a perspective view in the middle stage view (b). Show. The wound object 31 is formed by folding the non-woven fabric sheet 28 along the center line indicated by the dotted line in FIG. (a), and winding the folded one with its one end on the left and right as the center. Further, the lower diagram (c) is a cross-sectional view showing the structure of a cross section cut along a vertical plane including the dotted line shown in FIG.

As shown in this sectional view (c) in which the scroll is cut in half, the water retention substrate 6 is sandwiched between the continuous nonwoven fabric sheets 28 at the lower end. The water retaining base material 6 is the water retaining base material 6 shown in FIG. Further, on the upper part of the water-retaining base material 6, as shown in FIG. The water injected from the unjoined portions between these joining portions 29 and 29 penetrates into the lower water-retaining base material 6 and is hydrated. The bottom of the water-retaining base material 6 is filled with ultrafine-grain activated carbon having a particle size of 990 μm or less.
In addition, for example, the outside of the wound object 31 is wrapped around 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 glued with tape. By doing so, the shape of the winding object 31 is maintained. In addition, it is preferable to manufacture the wound body 31 having this shape so that the diameter of the wound body 31 is substantially the same as the diameter of the rainwater infiltration mass that emits radiation. By applying a slight external pressure to the wound object 31, the wound object 31 can be stored and installed in close contact with the inner wall of the rainwater permeation mass. FIG. 48 is a perspective view showing a state where the wound object 31 is stored.

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

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 formed of a polyethylene resin to which a black pigment is added, and a water-retaining base material 6 provided in a gap between them are used. , The container body is configured. The inner region of the inner container 66 is used as the radioactive substance storage space 70. On the container lid 69 that covers the upper surface of the container body, the water retention substrate 6 is provided in the upper region of the lid bottom plate of the container lid 69. Further, on the upper surface of the container lid 69, a water inlet and a lid 25 for closing the water inlet are provided.
The cross-sectional thickness of the water retention 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 obtained by mixing rock wool granular cotton and ultrafine-grain activated carbon having a particle size of 990 μm or less, and its weight when saturated with water is approximately 280 kg/m ² . This weight can prevent the radiation emitted from the radioactive substance stored in the radioactive substance 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 saturated water content is about 240 kg/m ² . This weight can prevent the radiation emitted from the radioactive substance stored in the radioactive substance 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 is a specific example of the configuration of the first or second invention.

Further, the material of the container having this configuration is preferably a material which is not easily deteriorated by the effects of hydrogen sulfide resistance, acid rain resistance, industrial drainage hot spring water, and the like. A black container in which a carbon fiber or glass fiber having a diameter of less than 1 mm or a rod having a length of 0.7 to 15 mm is added to polyethylene resin is more preferable because the pressure resistance is increased. In addition, at least one material selected from 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 is selected. Alternatively, it is also preferable that the outer container 65 and the inner container 66 are made of a composite material of the above materials. Further, it is also preferable to configure a metal drum can as the outer container 65 and the inner container 66. Further, the outer container 65 and the inner container 66 having this configuration can have any shape such as a square shape, a polygonal shape, a circular shape, and an elliptical shape as the upper surface shape. Further, the shape of the container lid 69 may be one that matches the shapes of the outer container 65 and the inner container 66. The size of the radiation transmission reducing container may be arbitrarily determined in consideration of the size of the radioactive substance to be stored and the size of the substance contaminated with the radioactive substance.

According to the embodiment of the fifty-eighth invention, 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, At least one material selected from carbon fiber, blast furnace slag fiber, stone, ceramics, rubber, paper, and soil, or composed of a composite material of the above materials,
A bottomless inner container (net) arranged inside the outer container (pipe) such that the side walls recede inward from the bottomless outer container (pipe) whose both ends are cylindrical or square pipe-shaped ( A non-woven fabric having moisture permeability is attached to the mesh wall surface of the outer container (pipe) side of the pipe), or an ultrafine-grain activated carbon sheet obtained by adhering or impregnating at least one nonwoven fabric with ultrafine-grain activated carbon having a particle size of 1200 μm or less is attached. Or in preparation,
A pipe obtained by filling the space between the ultrafine-grain activated carbon sheet and the outer container (pipe) with ultrafine-grain activated carbon having a particle diameter of 1200 μm or less, or activated carbon and blast furnace slag generated during ironmaking as a main raw material. The present invention invents a radioactive gas aeration adsorption pipe characterized in that the gaps at both ends are closed with a lid and the like using a closing member such as a bolt, a nut, and a washer. It is preferable to design the size of this radioactive gas aeration adsorption pipe in consideration of the gas adsorption capacity of activated carbon, the amount of gas to be aerated inside the pipe, the adsorption rate, the mass of activated carbon, and the like. When the radioactive gas aeration adsorption pipe is put into practical use, it is advisable to provide an opening provided with a pipe through which gas is aerated to be connected to the lid. This pipe structure is useful for adsorbing various kinds of gases, and is useful because it can be manufactured at low cost. Even in the above-described gas adsorption, water may be contained in the fiber molded body, which is the main raw material of the blast furnace slag in the pipe and has no water repellent effect. As an advantage of containing water, activated carbon is accompanied by heat generation due to an adsorption phenomenon. It is theoretically possible to cool or moderate the heat of adsorption related to this heat generation amount, so that water content is preferable.

In addition, after a lid that matches the size of both ends of the radioactive gas aeration adsorption pipe is prepared and the gap is filled with any one of the water retention base materials described in the 71st, 72nd or 74th inventions, Also, an embodiment in which a substance polluted with a radioactive substance is housed inside the inner container and then a lid is provided at both ends to seal the substance is also useful for reducing the radiation of the radioactive substance. Further, when a substance polluted with a radioactive substance is stored and used in the inner container, the container (pipe) may be placed sideways, but the installation form is not limited to horizontal placement. In addition, it is also preferable that a water-containing inlet is opened in an outer container (pipe) to inject water into the water-retaining base material.

In the configuration shown in the cross-sectional view of FIG. 35, a resin bag in which a radioactive substance pollutant 71 that is contaminated with a radioactive substance and emits radiation is stored inside an outer container 65 formed of concrete into a cylindrical shape. The body 68 (radiation emitting material storage bag) is placed on a hollow pedestal 67 formed by forming a hollow resin plate in an annular shape. Under the hollow pedestal 67 and the outer container 65, hollow resin plates are provided as outer and inner lower pedestals 73, and a resin handling platform 75 is disposed below the hollow pedestal 73. The gap between the outer container 65 and the entire pedestal 73 and the bag 68 inside the pedestal 73 forms a water-containing space including the inner region of the hollow pedestal 67 formed in an annular shape. Further, the water retention base material 6 is filled without any gap. 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 obtained by mixing rock wool granular cotton and ultrafine-grain activated carbon having a particle size of 990 μm or less, and its weight when saturated with water is approximately 280 kg/m ² . This weight (mass) can prevent the radiation emitted from the radioactive substance 71 stored in the radioactive substance storage space 70 from passing through the outer container 65. In addition, 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 presumed that, among the activated carbon, ultrafine-grained 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 the finely divided carbon containing activated carbon to be mixed with the water-retaining base material, and it is also preferable to increase the mixing ratio of activated carbon. Further, as the water retention base material, a material other than rock wool may be selected.

Further, since the container of this configuration is provided on the resin handling platform 75, it is preferable for movement and transportation within the storage location.
The shape of the top surface or side surface of the outer container 65 having this configuration may be any shape such as a polygonal shape, a polygonal shape, a circular shape, a rectangular shape, a pyramidal shape, an elliptical shape, and an arc shape with one side of the rectangular shape. Further, the outer container 65 is preferably made of copper, stainless steel, tungsten, alloy, concrete, FRP resin, polyethylene resin, vinyl chloride resin, or resin having the above-described shape. Also, the outer container 65 is a metal can. You can also do it. Further, according to the structure shown in FIG. 62 according to the sixty-fourth invention, when a large outer container and an inner container are required, a sidewall structure in which a cylindrical sidewall is divided into a plurality (a divided outer container wall 111) and connecting the joint surfaces (side surfaces) of the manufactured divided side wall structure (divided outer container wall 111) using bolts, caulking, lining, resin agent, etc. 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 wall 112 may be manufactured by dividing the inner container similarly to the dividing wall of the outer container. Then, the same joint surface of the inner container wall 112 may be connected by the fixing means described above by the same mounting and assembling method as the outer container.

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 pedestals are fitted to each other to form a large plate. This hollow pedestal is a hollow plate having a plurality of plate-like ribs between a front thin plate and a back thin plate, and a space surrounded by the front thin plate, the back thin plate and the plate ribs is filled with a water retention base material 6 containing activated carbon. It is useful to reduce the transmission of the radiation emitted downward from the radioactive substance 71 stored in the radioactive substance storage space 70 when it is made to contain water. A resin-made hollow plate 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 the water content is contained in the outer container 65. Can be prevented from penetrating. That is, the basis for preventing permeation is that when a water-retaining base material of a dry matter designed to have a thickness of 50 cm is impregnated with water, the load of the water-retaining base material and the saturated saturation load of water are 600 kg per square meter. Also, using any of the radiation transmission reducing component 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. Fabricating large outer and inner containers is also recommended as an example. Also, as shown in the perspective view of FIG. 62, the resin hollow plate in which the through holes are not formed in the front and back thin plates of the hollow plate shown in FIG. It is preferable to manufacture it as a hollow pedestal) 67 because it has excellent weather resistance and can be manufactured at low cost. In addition, the outer and inner containers may have a shape in which the walls at both ends of a U-shaped gutter, which is widely used, are closed. The material forming the lid 69 is not limited to, for example, metal, concrete, or resin. 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 the divided outer inner container wall 111 in the same manner. Further, it is preferable that at least one water injection port is provided in this large-sized lid. Further, the lid 69 may have any shape as long as it matches the shape of the outer container 65. The size of the radiation transmission reducing container is the volume of radioactive material contained in the bag body 68 or the volume of the material contaminated with the radioactive material, and the gap between the bag body 68 and the outer container 65 and the pedestal 73. It may be arbitrarily determined in consideration of the size matching the space.

The configuration shown in the sectional view of FIG. 36 includes an outer container 65 having a resin-molded bottom and an inner container 66 having a resin-molded bottom. An inner container lower pedestal 72 made of a hollow resin plate is provided at the bottom of the inner container 66. Then, in the gap between the outer container 65 having a bottom and the inner container 66 having no bottom, and in the gap between the inner container lower pedestal 72 and the outer container 65, rock wool granular cotton and ultrafine granular 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 substance storage space 70. Further, a container lid 69 for closing the upper part of the container is provided, and in the upper region of the lid bottom plate of the container lid 69, there is provided a water-retaining base material 6 in which granular cotton of rock wool and ultrafine granular activated carbon having a particle size of 990 μm or less are mixed. It is equipped. Further, on the upper surface of the container lid 69, a water inlet and a lid 25 for closing the water inlet are provided.
The outer container 65 of this configuration has a circular top shape, and the inner container 66 has a cylindrical shape. The shape of the container lid 69 is a circle that matches the shape of the outer container 65. Further, as the pedestal 72, a circular resin plate matched with the shape of the inner container 65 is provided. The shapes of the outer container 65, the inner container 66, and the container lid 69 are mere examples, and the shapes are not limited, and arbitrary shapes such as a polygon, a circle, and an ellipse may be selected. The shape of the container lid 69 may be any shape that matches the shape of the outer container 65. The size of the radiation transmission reduction container is determined by the volume of radioactive material contained in the inner container and the volume of the material contaminated with the radioactive material, 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 a size that matches a certain water-containing space.

The cross-sectional thickness of the water-retaining base material 6 in the gap between the outer container 65 and the inner container 66 and between the outer container 65 and the pedestal 72 is 40 cm. The water-retaining base material 6 is a water-retaining base material obtained by mixing rock wool granular cotton and ultrafine-grain activated carbon having a particle size of 990 μm or less, and its weight when saturated with water is approximately 280 kg/m ² . This weight can prevent the radiation emitted from the radioactive substance stored in the radioactive substance 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-containing saturated amount is about 240 kg/m ² . This weight is useful because it is possible to prevent the radiation emitted from the radioactive substance stored in the radioactive substance storage space 70 from passing through the container lid 69. 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. It is predicted that, among the activated carbon, ultrafine-grained activated carbon having a particle size of 990 μm or less is particularly effective for shielding the dose.

In the configuration shown in the cross-sectional view of FIG. 37, a resin-made material in which a radioactive substance pollutant 71 which is contaminated with a radioactive substance and emits radiation is contained inside an outer container 65 which is formed of a polyethylene resin in a cylindrical shape. A bag body 68 (a radiation emitting material storage bag) is placed on a hollow pedestal 67 in which a hollow resin plate is formed in an annular shape. Below the hollow pedestal 67 and the outer container 65, hollow resin plates are provided as outer and inner lower pedestals 73. A cargo handling platform 75 made of resin is placed below it. In addition, in the gap between the inside of the outer container 65 and the upper surface of the pedestal 73 to the outside of the radiation emitting material storage bag 68, a water-containing space is formed including the inner region of the hollow pedestal 67 formed in an annular shape. This space is filled with the water retaining base material 6 without any gap. A lid 69 is further provided to cover it. The lid 69 has the water retention base material 6 inside, and further has a water injection port 25 that connects the space in which 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 obtained by mixing rock wool granular cotton and ultrafine-grain activated carbon having a particle size of 990 μm or less, and its weight when saturated with water is approximately 280 kg/m ² . With this weight structure, the radiation emitted from the radioactive substance stored in the radioactive substance storage space 70 can be prevented from passing through the outer container. The reason why activated carbon, which is generally known to have a physical adsorption function, is added to the water retention substrate 6 is that the specific activated carbon is at least effective for shielding radiation. Among the activated carbon, ultrafine-grained activated carbon having a particle size of 990 μm or less is effective for shielding the dose.
Further, since the constituent container is provided on the resin handling platform 75, it is preferable for the movement and transportation in the storage place.

In the configuration shown in the cross-sectional view of FIG. 38, the water-blocking sheet 76 is provided on the upper surfaces of the outer and inner lower pedestals 73 of the configuration of FIG. 35 already described and on the lower surface near the inner periphery of the outer container. It is preferable to lay this water-blocking sheet 76 because it prevents water falling from the upper part from flowing out from under the periphery of the outer container 65 and from the pedestal 73. The water shielding sheet 76 may be adopted in another radiation transmission reducing container like this structure.

In the configuration shown in FIG. 39, a substantially square outer and inner lower pedestal 73 is provided on a substantially square resin loading platform 75, and on the pedestal 73, the inner side of the outer container 65 and the upper surface of the pedestal 73. The water-retaining base material 6 is provided so as to be sandwiched between the inner container 66 and the outside of the inner container 66. In the space inside the inner container 66, a radioactive substance contaminant storage bag 77 is placed as a radioactive substance storage space 70. The shapes of the resin 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 view (a) is a top view of the container when the container lid 69 is removed, and the lower view (b) is an overall perspective view.
Further, outer and inner lower pedestals 73 are provided on the resin handling platform 75, and the left and right parts of the outer container 65 and the pedestal 73 are fixed on the pedestal 73 by the fixing members 16. ing. The water retaining base material 6 is provided so as to be sandwiched between the inner side of the outer container 65 and the upper surface of the pedestal 73 and the outer side of the inner container 66. A radioactive substance contaminant storage bag 77 is placed in the radioactive substance storage space 70 inside the inner container 66. The container lid 69 that covers the upper side thereof is provided with the water retention base material 6. As described above, it is preferable that the outer container 65 and the right and left portions of the pedestal 73 are fixed by the fixing member 16 because collapse of the container can be prevented. It is desirable to fix at least two places as the fixing places. Further, as this fixture, a fixture that detachably fixes the outer container 65 and the pedestal 73 is preferable.

In the configuration shown in the sectional view of FIG. 40, U bolts are fixed to the left and right upper surfaces of the outer and inner lower pedestals 73 made of fiber reinforced plastic using nuts. A hanging rope 74 made of a wire rope is passed through the U bolt and is firmly fixed by a wire clip for connecting the wire rope so as not to fall off from the U bolt. And
A bottomless outer container 65 which is integrally molded into a cylindrical shape with resin is placed on a pedestal 73. Inside the outer container 65, an inner container 66 made of resin and having no bottom is arranged, and at the lower end thereof, an inner container lower pedestal 72 made of a hollow resin plate is provided. 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, the water-retaining base material 6 in which the granular cotton of rock wool and the ultrafine-grain activated carbon having a particle size of 990 μm or less are mixed is provided. Has been. 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 region of the inner container 66 is used as a radioactive substance storage space 70. Further, a container lid 69 that covers the upper portion of the container 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, the water-retaining base material 6 in which the granular cotton of rock wool and the ultrafine-grain activated carbon having a particle diameter of 990 μm or less are mixed is provided in the upper region of the lid bottom plate. Further, a water inlet and a lid 25 that closes the water inlet are provided on the upper surface of the container lid 69.

This configuration is an example, and the water blocking sheet shown in FIG. 38 may be laid on the upper surfaces of the outer and inner lower pedestals 73, for example. It is also preferable to lay the water-blocking sheet in contact with the upper surface of the inner container lower pedestal 72 and the periphery of the inner lower end of the inner container 66. Further, the hanging strings 74 are fixed at at least two places, but it is more preferable to attach the hanging strings to the pedestal 73 and fix the hanging strings at a plurality of places. In addition, this configuration is preferable because it makes it possible to suspend and move the radiation transmission reduction container using a heavy machine such as a crane.
Regarding the outer container 65 and the inner container 66 having this configuration, for example, when the outer container 65 has a diameter of 150 cm and the inner container 66 has a diameter of 90 cm, the water-retaining base material 6 has a thickness of 30 cm. And it is also possible to make it 10 m high. In this case, the outer container 65 and the inner container 66 preferably have a cylindrical shape. The container of this height can also be used for the wall of the fort shown in FIG. 45 described later. Further, a plurality of radioactive substance contaminant storage bags can be stacked in this container, and a configuration in which the radiation transmission reduction containers shown in the respective figures are laid sideways and provided with lids at both ends is also preferable. When the radiation transmission reducing container is laid sideways and used, it is preferable to provide a water injection port on the upper surface of the outer container. FIG. 61, which shows an example thereof in 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 for fixing the outer container.

In the configuration of FIG. 41, the water retention 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 retention base material 6 is a block. It is formed 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 supply to the water retaining substrate 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 FIG. As shown in the perspective view of FIG. (c), a concrete foundation 27 incorporating a reinforcing bar is provided from the ground to the ground, and another reinforcing bar 26 is bound to the reinforcing bar 26 incorporated in the concrete foundation 27 with a numbered wire or the like. .. Then, the reinforcing bar 26 is inserted into the hollow portion of the block-shaped body 24. In this way, the block-shaped bodies 24 stacked by the same construction method as the concrete block wall are collapsed and can be useful in a place where radiation shielding is required. The weight of the block-shaped body 24 in the water-saturated state is 17 to 20 kg. That is, when the block-shaped body 24 becomes a wall structure, it is useful for shielding radiation. Further, the cavities of the block-shaped body 24 are filled with mortar. As a result, the load on the wall structure increases. Further, it is preferable that the block-shaped body 24 is molded of fiber reinforced plastic, or is manufactured by vinyl chloride resin molding or polycarbonate resin molding because it has good weather resistance and strength.
In addition, the block-shaped body 24 is provided with a lid for the water injection port 25. Note that FIG. 6B is a cross-sectional view of a cross section taken along the dotted line shown in FIG. As shown in this cross-sectional view, the chamber filled with the water retaining base material 6 is divided into three by the rib wall 4, and the water retaining base material 6 is filled in each chamber. The rib wall 4 increases 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 part (a) of FIG. 42, the hollow plate 21 having the weather resistance by bonding the aluminum foil on the surface allows the exploded view of the middle part (b) and the lower part (c) of FIG. The box body 37 shown in the developed view is formed, and the water retention base material 6 is filled in the inside thereof. According to this structure, a black pigment is selected as an additive in the resin material in order to obtain weather resistance at the manufacturing stage of the hollow plate 21 in which polypropylene resin is used as a molding material. 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 opened in the center of the hollow plate 21. The through hole 12 is opened for the purpose of pouring water, and the hollow plate 21 in the shape of the through hole, which is hollowed out by using an electric tool, is fitted into the hollowed out portion when the pouring of water on the water retaining base material 6 is completed, and then from above. It is advisable to attach the cutout and the 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 the bent portions are bent to form the box-shaped body 37. The box-shaped body 37 is formed by adhering the upper end (joint portion 29) of the above 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 closed hollow plate 21, and is therefore useful as a radiation transmission reducing base material. Further, the hollow plate 21 is preferable because it can withstand an external pressure such as a load because the front thin plate, the back thin plate and the rib are integrally molded. Generally, polypropylene resin is used as a raw material for molding, and the color of the finished product is semi-transparent, so the effect of reducing the transmission of radiation cannot be expected, but the additive pigment can be a dark color such as black, green, or blue. This is useful for reducing the transmission of radiation. Further, in this configuration, the box-shaped material for housing the water-retaining base material 6 is the hollow plate 21, but this is an example, and the present invention is not limited to this hollow plate 21. Although the through-holes 12 are provided, the number may be plural. Further, the form in which the through hole 21 is omitted may be used. In addition to the adhesive tape forming the box-shaped body 37, the box-shaped body 37 may be formed by joining the hollow plates by heat welding or rivets.

FIG. 43 is a cross-sectional view of an example showing a configuration in which a wall greening structure having an effect of reducing transmission of radiation is installed on a foundation. This structure corresponds to a specific example of the structure of the 79th invention. As shown in the perspective view of the upper part (a), the left and right H steels 50 are fixed to the concrete foundation 27. In the H steel 50, a wire rope 51 having an end portion fixed to a terminal nut 53 is provided with a through hole at a predetermined position for a bolt of a fixing member. The through-holes that are opened are fitted together and fixed with a nut. The virtual greening structure 54 shown by the dotted line on the two wire ropes is fixed by the fixing member 16.
It should be noted that the lower diagram (b) is a perspective view showing a configuration in which the wire ropes 51 are crossed and fixed to reinforce the strength in the upper diagram (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 (b), it is easy to install and install the wall greening structure according to the 48th invention. This form is useful because
FIG. 31A is a sectional view showing a structure in which a structure corresponding to a specific example of the wall greening structure according to the forty-eighth invention is attached to and installed in the structure of FIG. A hollow plate 22 is formed on the back surface of the wall greening structure such that the longitudinal direction of the ribs is the horizontal direction. The wire rope 51 described in FIG. 43 is passed between the ribs. The back surface of the hollow plate 22 is coated with a heat shield paint on a non-woven fabric to prevent the resin from being deteriorated by ultraviolet rays. Has been. The use of this heat-shielding paint is an example.In addition, in order to prevent ultraviolet rays and increase the strength, disaster prevention or non-combustible, flame-retardant sheets or metal plates, concrete plates, resin plates, etc. are attached to a part of the hollow plate. 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 method of attaching the wall greening structure is not limited to this.

The configuration of (a) in the upper part of FIG. 44 is shown in FIG. 21, FIG. 22, and FIG. 24 on the ground 39 of the forest where radioactive materials adhere and emits radiation, in the ground, on the leaves, and on the upper surface of the undergrowth. The bag body 32 described above is placed, and water is injected or sprinkled into each water-retaining base material, whereby radiation is radiated to the ground 39 of the forest, the ground, the leaves, the surface of the undergrowth and the air above it. It is possible to reduce what is done. The bag 32 is obtained by planting seedlings of the plant, seeds can be germinated, seeds and seedlings can be grown in the bag 32 together, and can only be hydrated by the water-retaining base material. There are various specifications such as. With this configuration, it is possible to shield the dose and restore the forest, which is useful for maintaining a green environment.
In addition, by winding the bag 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 attached to the tree. Further, the bag body 32 and the sheet base material described above are preferable because they can be generally used for reducing the radiation contaminated with a radioactive substance such as a telephone pole. As an example, it may be used on the slope of the road shown in the figure (b) below. In addition, you may equip the lower surface of the bag body 32 of this structure with the hollow underdrain board of 9th invention. To add the 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 by driving into the soil. Then, the bag body 32 may be fixed to the hollow underdrain plate by any fixing method. The provision of the hollow underdrain plate is preferable because the drainage effect is added and the transmission of the radiation emitted from the radioactive substance adhering to the soil or the grass is reduced.

In the configuration of the perspective view of FIG. 45, H steels 50 are driven into the four corners of the outer region where a plurality of radiation emitting wastes 59 are stored, or even on the ground other than the four corners, respectively. A plurality of wire ropes are attached to the H steels between the H steels as described in FIG. Fixing members eye bolts and nuts for fixing the attached wire rope and the water-containing hollow plate-shaped body 1 are attached to predetermined positions of the water-containing hollow plate-shaped body 1. Then, the wire rope is passed through the eyebolt ring that is fixed to the water-containing hollow plate-shaped body 1 to fit the water-containing hollow plate-shaped body 1 with no gaps, thereby forming a standing wall. A structured radiation storage facility 62 can be built. In addition, a water-containing hollow plate-shaped door 60 for management is attached to the radiation emitting substance storage fort 62 by a hinge.
Since the height of the water-containing hollow plate-like body 1 used for this radiation-emission storage fort 62 can be selected from 2 m to 6 m in height and 30 mm or more in thickness, construction of a wall having an effect of reducing transmission of radiation is possible. Is possible. For example, the thickness of the plate is set to 25 cm in order to reduce the radiation transmission reduction rate to about 80%. Then, the weight in the water-containing saturated state becomes 250 kg/m ² . This wall weight is useful because it significantly shields the radiation of the radiation emitting waste 59. However, since the radiation from the stored radiation-emission waste 59 may pass through the radiation-emission storage fort 62, the radiation-emission shielding cover sheet 61 shown in FIG. It is more preferable to cover the upper surface of the waste 59 because it prevents upward radiation. Although not shown in the figure, a roof formed with the water-containing hollow plate-like body of the present invention in a size matching the size of the radiation-emission storage fort may be constructed in the radiation-emission storage fort 62. Good. That is, it is advisable to design and construct beams and columns (H steel) that are indispensable for structural strength by designing them from structural calculations. In addition, on the front side of the radiation emitting substance storage fort 62 and on the roof, a plate of a form in which a non-combustible sheet is bonded to the soil is attached to the upper surface of the base material according to the ninth aspect of the invention to build a green wall. Is preferable and the appearance can be a natural body, which is preferable.
Note that the lower diagram (b) is a configuration in which the water-containing hollow plate-shaped body 1 is laid on the ground surface in the region inside the radiation-emissions storage fort 62 and the ground surface adjacent to the outer side in the configuration of the upper part (a). It is a perspective view which shows. An irrigation pipe 15 is attached to the top surface of the water-containing hollow plate body 1. The role of the irrigation pipe 15 is a preliminary base material structure for stopping the scattering of radioactive materials when there is a risk that the radioactive materials will scatter due to strong winds, and the present invention is not limited to this.

FIG. 46 is a perspective view showing how the wound body 31 shown in FIG. 33B is installed inside the rainwater permeation mass 63. Reference numeral 12 is a through hole formed in a general rainwater permeation mass 63. Further, reference numeral 64 indicates a rainwater permeation mass connection pipe. Further, reference numeral 8 is a lid of the rainwater permeation mass 63. If the land near the rainwater seepage mass 63 is contaminated with radioactive material, the running water of rainfall falling on the land moves the radioactive material into the perforated underground drainage pipe 64 connected to the rainwater seepage mass 63. It is expected that The radioactive substances that have flowed together with water in the perforated underground drainage pipe 64 move to the rainwater infiltration mass 63, and adhere to or deposit on the soil or stones in the vicinity of the mass 63 or the rainwater infiltration mass 63. It is expected that Therefore, it is expected that the rainwater infiltration mass 63, the rainwater mass and the gutters where radioactive materials have been washed away from the nearby land and accumulated have become contaminated areas. The value of the radiation dose of radioactive material thus accumulated should be higher than the average value of the surroundings. It is useful to install the winding object 31 in the rainwater-penetrating mass 63 because the dose of the radiation transmitted through the lid 8 of the rainwater-penetrating mass 63 can be reduced.

FIG. 47 is a cross-sectional view showing that the rooftop green area 84 exists on the rooftop 80 of the building. A waterproof layer is formed on the frame of the rooftop green area 84. A heat insulating material layer is provided on the upper surface of the waterproof layer. A plate body of the ninth invention manufactured by foam injection molding has a heat insulating effect and is laid on this heat insulating material layer. On the upper surface thereof, one example of the thirty-fifth aspect of turfing (area 100 m ² ) is made by forming rockwool soil having water retention property. The soil has a thickness of 15 cm, a saturated water content of 130 liters per square meter, and the total weight of the soil structure is 200 kg (saturated with water). An underground irrigation tube 83 is provided in the soil of the grass. The water source of the underground irrigation tube 83 is the rainfall 89 falling 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. The rainfall collecting plate 78 uses the hollow underdrain plate 22 having a plurality of strip-shaped through holes of the ninth invention as the rainfall collecting plate 78. As shown in the figure, a rainfall collecting plate 78 is provided on the upper surface of the pedestal 86 which is installed in an inclined shape. The strip-shaped through-hole forming drain pipe 23 is connected to the lower end face of the rainfall collecting plate 78 provided on the inclined surface. A rainwater passage pipe 79 is connected to the drain pipe 23, and is connected to a rainwater storage tank 81 provided on the rooftop. Inside the rainwater storage tank 81, a float switch electric water pumping pump 82 is installed. Then, the irrigation pipe 15 is provided between the floating switch electric water pumping pump 82 and the irrigation tube 83 embedded in the soil of the grass in the rooftop greening area 84, and water is circulated from the pump 82 to the irrigation tube 83. Is done. The operation mechanism of the float switch electric water pumping pump 82 is that the float switch automatically operates when the rainwater flowing from the rainfall collecting plate 78 is stored in the rainwater storage tank 81 to reach a certain amount of stored water. Then, it has a mechanical function of operating the electric motor of the electric water drawing pump 82. When the amount of water stored in the rainwater storage tank 81 does not reach a certain amount, the electric motor of the electric water drawing pump 82 does not operate.

According to this rainfall irrigation system, for example, when the soil water content is 50% (65 liters per square meter) and there is 30 mm of rainfall, 30 mm of rainfall on the lawn is additionally hydrated in the soil. Almost all of the amount of rainfall of 30 mm that has fallen on the rainfall collecting plate 78 is retained by rainwater from the irrigation drip tube 83 embedded in the soil of the grass through the hydraulic pressure of the motor power of the floating switch electric water pumping pump 82. Excellent soil is uniformly flooded. That is, since the amount of water that is the sum of the amount of rainfall retained on the grass and the amount of rainfall that falls 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, the drainage By connecting and connecting the pipe 23, the rainfall water storage tank 81, the floating switch electric water pumping pump 82, the irrigation pipe 15, and the irrigation drip tube 83 using the joint base material and the fixing member, it is possible to utilize the rainfall resource, which is useful. is there. Further, a pop-up sprinkler that requires water pressure may be provided in place of the irrigation drip tube 83. Further, the rain water collecting plate 78 can be replaced with a solar power generation panel. This rain-fed greening system is practically useful when it is provided on the roof or the ground surface of a building that is contaminated with radioactive substances, because it can obtain a radiation reduction effect. In addition to greening, it is also preferable to select and install, for example, the 36th invention on the rooftop or on the ground surface polluted with radioactive substances. In addition, since this irrigation system using rainwater is also useful for general greening, if the rainwater collecting plate 78 can be installed at a place near the greenery, it may be adopted on the rooftop or on the ground surface. preferable.

According to the sectional view shown in FIG. 47( b ), the wall greening structure 54 is installed in a free-standing form on the ground 49 which is contaminated with radioactive material. In this self-supporting wall greening structure 54, a radiation transmission reducing wall structure 116 according to the 80th to 86th inventions is installed with a length of 30 m. In addition, in the front area where 10 radiation-transmission-reducing wall structures 116 each having a water-saturated load of 1800 kg (width 3 m, depth width 0.7 m, height 1.5 m) are connected, a water-saturated load is 1 square meter. 500 m ² of the radiation transmission reducing component base material 117 having a soil structure thickness of 15 cm and 200 kg is provided. The radiation transmission reducing component base material 117 is made of grass. Further, the rainfall collecting plate 78, the band-shaped through-hole forming drain pipe 23, the drain pipe 23, the rain water storage tank 81, the floating switch electric water pumping pump 82, the irrigation pipe 15, the irrigation drip, which are also configured in FIG. 47(a). The tube 83 is connected and connected to the radiation transmission reducing wall structure 116 and the radiation transmission reducing component base material 117. The radiation transmission reducing wall structure 116 configured as described above can obtain the radiation transmission reducing effect from the adjacent land, and the combined moisture content of the radiation transmission reducing constituent base material 117 and the dose shielding effect of the constituent base material are combined. It is preferable because the effect of reducing the radiation transmission from the ground 49 which is contaminated with the radioactive substance due to is obtained. The phenomenon in which children who have restricted exercise or play become obese in schoolyards and playgrounds where radioactive materials remain after decontamination is prominent. When a growing child becomes obese, there is concern that the child may develop an adult disease in the future. By providing turf grass with a shielding effect in such schoolyards and gardens, it is possible to regain the time of exercise and play that stimulates the five senses for children, a national treasure and human treasure. It is useful.

<87th Embodiment>
The embodiment shown in FIG. 64 is a water-repellent heat insulation molded into a rectangular parallelepiped having a thickness of 15 cm, a width of 90 cm, and a width of 60 cm by depositing resin on a myriad of fibers whose main material is blast furnace slag generated during iron making. FIG. 6 is a perspective view showing that a space area inside the material 42 is filled with granular activated carbon having a thickness of 5 cm, a width of 80 cm, and a width of 50 cm. It should be noted that ultrafine-grained activated carbon having a particle size of the activated carbon filled therein is 990 μm or less is selected.

In addition, a sectional structure taken along a dotted line connecting between (a) and (a) and (a) and (a) shown in the drawing is shown as a sectional view in FIG. Then, a sectional structure cut backward by a dotted line connecting between (c) and (c) shown in the sectional view of FIG. (b) is shown in a top view of FIG. (c). In addition, a space region having a thickness of 5 cm, a width of 80 cm, and a width of 50 cm for filling activated carbon is formed in the inner region of the water shields 42a, 42b, 42c, 42d shown in the top view of FIG. The space area 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 shields 42a, 42b, 42c, 42d and the activated carbon shown in FIG. According to the form of this figure, the water-repellent heat insulating material 42 forms three layers in the thickness direction. The water-repellent heat insulating materials 42 stacked in the thickness direction are adhered with a resin adhesive.

In addition, as an example of the means for manufacturing the invention, a mold that matches the size to be manufactured is formed, and resin or water, cement, and rock wool granular cotton are mixed on the bottom and side surfaces of the inner region of the mold. Filled with rock wool granulated cotton for molding, and then filled with activated carbon or zeolite in the inner area of the bottom and sides, filled with rock wool granular cotton for molding on the top, and the upper surface of rock wool granular cotton for molding with a crimping plate. The present invention is completed by applying a load to and crimping, drying 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. In addition, the sizes shown in the above figures are examples, and the sizes are not limited thereto. Although the invention depends on the manufacturing environment, since it adsorbs gas and airborne particles in the atmosphere, it is preferable to pack it in paper or a resin bag immediately after manufacturing. The packaging ensures the quality of the invention, which is preferable.

Further, the shape of the invention is also selected from any shape and manufacturing method such as a cube such as a square, a circle and an ellipse, a rectangular parallelepiped, a triangular pyramid, a quadrangular pyramid, a cylinder, a disc, a plate, and a sphere. Good. The vapor-phase structure of the present invention, which is equipped with a resin such as activated carbon and rock wool fiber, is preferable because it can be presumed that it is also useful for adsorption of radioactive gas. In addition, 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. It should be noted that part or all of the gas phase structure comprising the activated carbon of the present invention may be made to contain water, and the present invention containing water reduces the radiation transmission of radioactive substances by adding water which is a compound of hydrogen and oxygen. Can be expected to be useful. According to another embodiment of the invention, any one of the inventions described in the 53rd or 54th embodiments, or at least one nonwoven fabric is adhered or impregnated with ultrafine activated carbon particles having a particle size of 990 μm or less. A non-woven fabric in which the non-woven fabric is folded or laminated into a plurality of sheets, a paper sheet in which a paper sheet in which at least one piece of paper is adhered or impregnated with zeolite is folded or laminated into a plurality of sheets is selected, and It is also preferable to produce a gas phase structure by substituting activated carbon and zeolite for filling a partial void area inside any of the fiber molded body mainly containing blast furnace slag, the glass fiber molded body, and the ceramic fiber molded body. .. The external shape of the present invention is a cube, the rectangular parallelepiped is installed between the floor and the ceiling of the inner wall of the building that stores the radioactive material, and the storage cube, the rectangular parallelepiped of the present invention on the storage body surface arranged inside the building wall of the present invention. It is useful to select a plate-shaped body and install it by using a fixing member because it can serve as a radioactive material permeation-reduced building inner wall structure.

<70th Embodiment>
In the embodiment of the 70th invention, after the water retention base material of any of the 57th to 69th inventions is filled in the gap, water is injected into the water retention base material to hydrate the water retention base material. It is preferable since the effect of reducing radiation transmission is exhibited after water injection. Injecting water into the water-retaining base material is an embodiment implemented in all of the present invention in addition to the invention.

<71st Embodiment>
In an 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, Ceramic fiber molding, micro-changing carbon, paper, newsprint, paperboard, super absorbent polymer resin, humus, non-woven fabric, cloth, cotton, plant 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, humus, volcanic ash, colloidal solution of barium sulfate, paraffin, cellulose, activated carbon, charcoal, plaster, Cement, color sand, mineral, sponge, desiccant, pigment, SAKRAN (suisenjinori), antiseptic, resin pellet, resin, non-woven fabric in which fibers are attached or impregnated with super absorbent polymer, at least one non-woven fabric The radiation according to any one of 1 to 70 or 73, 75 to 90, which is at least one of a non-woven fabric or a fiber having a particle size of 1200 μm or less and adhering or impregnated with finely divided carbon. A permeation-reducing constituent base material.
It is preferable to select one or a plurality of kinds from the water-retaining base material and to fill the predetermined place configured in the invention described in any one of the first to 70 or 73 and 75 to 90. The moisture content of the selected water-retaining base material exerts an effect of reducing radiation transmission. Further, since it is predicted that a radioactive substance adsorption and shielding reduction effect will be exhibited depending on the quality of the water retention base material, the above water retention base material is preferable.

<72nd Embodiment>
In an embodiment of the 72nd invention, the mineral fiber molded body is rockwool granular cotton or a rockwool granular cotton perforated bag package, a rockwool plate or a rockwool plate perforated bag package, Rock wool felt or a rock wool felt perforated bag package, and the radiation transmission reducing component substrate according to the first to 70 or 73 to 90, wherein the glass fiber is glass wool. It could be presumed that the form in which innumerable minute voids were permanently retained was useful for the radiation transmission reducing effect, and thus rockwool and the like in this form are preferable.

<73rd Embodiment>
The embodiment of the 73rd invention comprises a polyethylene resin sheet or a bag made of a polyethylene resin film, a polyethylene resin sheet having a polyethylene resin sheet on the front surface and a polyethylene resin film having a plurality of perforations on the back surface. Any one of the bag bodies is filled with the water-retaining base material of the 71st or 72nd invention, and at least one water injection port is opened in the bag body. The invention is preferable because it is determined that the radiation transmission reducing effect can be obtained at a low price.

<74th Embodiment>
The embodiment of the seventy-fourth invention is, in the water-retaining base material, a shape stabilizer (polyethylene glycol), oil, molybdic acid aqueous solution, barium sulfate colloidal solution, epoxy resin, sodium tungstate, gel liquid, varnish, ethanol, The radiation-transmission-reducing constituent base material according to any one of the first to 73 or 75 to 90 inventions, wherein any one of a surfactant, a fluorine-based surfactant or a solution with a large mass is injected into the water-retaining base material. When this material is selected from and injected into a water-retaining base material, it is preferable for reducing radiation transmission.

<75th Embodiment>
FIG. 63 In this embodiment, the upper diagram (a) is a perspective view showing an example of this embodiment.
Further, the middle view (b) is a perspective view showing a cross section of a dotted line connecting a to a in the upper view (a).
The water shield shown in the lower layer of the figure is provided with a rock wool rectangular parallelepiped which is water-repellent treated with a resin in the inner region of the water shield sheet 76 covering the surface. In the water repellent treatment, a resin is used to form a rectangular parallelepiped and to prevent the intrusion of water from the outside.
The lower surface, front surface, side surface, rear surface, and upper surface of the rectangular parallelepiped of rockwool fiber are covered with a rubberized cloth sheet formed by laminating fluororubber, aramid fiber, and aluminum foil. This rubberized cloth sheet has heat resistance of 200 to 250° C. and insulation depending on the conditions of the place of installation, and is therefore useful for shielding radiation.
In addition, the rectangular parallelepiped of rockwool is covered and wrapped with a rubberized cloth sheet, and in this packaging, a polyvinyl chloride tape and a waterproof airtight tape, an adhesive is used to bond the rectangular parallelepiped of rubberized cloth sheet and rockwool, It is adhesively sealed. It is also preferable to bond the same ends of the covered and wrapped rubber-coated cloth sheet by heat fusion. In addition, as a method of hermetically packing the water-blocking sheet 76 that constitutes the water-blocking body, any packing means other than the above-mentioned packing means may be selected.

In the middle-layer water shield, granular rock wool 101 is formed in the inner region of the water shield sheet 76 covering the surface in substantially the same size as the rectangular parallelepiped of the lower and upper water shields. The rectangular parallelepiped formed of the rock wool granular cotton 101 is provided inside the rubber-coated cloth bag body 32 in which the polyester base cloth as the water-blocking sheet 76 and the chloroprem rubber are pressure bonded.
Since this rubberized cloth bag body 32 is excellent in water pressure resistance, water does not leak from the bag body 32 even when 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 body 32 are bonded by heat fusion to form the bag body 32. A water injection hole 25 for water injection is provided in the sealed bag body 32. The water injection hole may be provided with a notch because a water injection hose can be injected therein. If water injection is completed on the rock wool granular cotton 101 and then the water injection hole or the notch forming portion is closed using a polyvinyl chloride tape, a waterproof airtight tape or a rubberized cloth sheet, the water content of the water retention base material 6 will not decrease. Therefore, it is preferable.

The upper water shield is the same as the lower water shield. As shown in the figure, the three water shields are fixed and packed with a wire clip made of stainless steel, a dedicated wire clip for fixing the wire rope, a screw, and the like.
As described above, the factors for reducing the permeation of radioactive substances in the package 35 covered with the water-resistant rubber sheet formed in the upper layer and the lower layer are the fluororubber having an insulating property, the aramid fiber having a heat resistance, and A middle layer in which 90% of rock wool molded rectangular parallelepipeds, which are water-repellent processed fibers made from minerals having a fine void structure, and rock wool granular cotton 101 rectangular parallelepipeds are filled inside a water-proof bag. By integrating the water shield provided in the above, it is possible to maintain a stationary gas phase state in the upper and lower structural layers of the integrated packaging structure. And the structure which can hold|maintain the layer of water which does not move will be formed in a middle layer. That is, it is possible to estimate that reduction of the permeation of radioactive substances can be obtained by the present invention in which a rectangular parallelepiped of a gas having a small amount of water vapor and a water-containing layer containing oxygen are retained, which is useful. In addition, a total load of 133 kg, which is a combination of the upper and lower impermeable body loads of 16 kg, the middle layer of the dry water-retaining base material load of 20 kg, and the water-containing saturated load of 97 kg, is useful for increasing the reduction rate of permeation of radioactive substances. The combined size of the three water shields 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 by stacking the water shields shown in the figure. In addition, since it has shielding elements such as vapor phase layer, heat insulating layer, and insulating layer other than the shielding factor caused by the load, it is estimated that the gamma ray transmission is suppressed more than the general gamma ray transmission reduction effect caused by the load. To be done.

Further, according to the configuration of the cross-sectional view shown in Fig. (c), the water shield placed in the lower layer is the same as the water shields constructed in the upper and lower layers shown in Figs. (a) and (b). However, a sheet 17 to which ultrafine activated carbon having a particle size of 990 μm or less is attached is arranged and provided in a plane inside a rock wool molded rectangular parallelepiped in which mineral fibers are water repellent.
Further, the water shield placed in the upper layer is the same as the water shield in the middle layer shown in the above figures (a) and (b). As shown in the figure, the two water shields are fixedly packaged with a wire clip made of stainless steel, a dedicated wire clip for fixing the wire rope, a screw, and the like. When fixing and packing with the wire rope, the wire clip, the screw and the like, the respective water shields may be individually attached to the surface of the water shield facing each other by using an adhesive, a pressure sensitive adhesive or a front and back adhesive tape. In addition, as another means for fixing the water shield constructed in multiple layers, 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 water shield constructed in multiple layers. It is preferable to form a unitary structure by squeezing and using a fixing member. By selecting this fixing means, the effect of reducing the permeation of the radioactive substance of the ninth invention is synergistically exerted, which is useful for increasing the permeation reduction rate of the radioactive substance of the present invention, which is preferable.

It should be noted that a total load of 125 kg, which is a combination of the lower layer impermeability load of 8 kg, the intermediate layer dry water retention base material load of 20 kg and the water-containing saturated load of 97 kg, is useful for increasing the reduction rate of radioactive substance transmission. Further, it is theoretically predicted that the load due to the two-layer water shield structure in the figure can suppress the transmittance of gamma rays, which is highly transparent radiation, to about 50%. In addition, since it has a shielding composite element such as a vapor phase layer, a heat insulating layer, an insulating layer, and a carbon layer other than the shielding factor due to the load, it suppresses the transmission of gamma rays more than the general effect of reducing the transmission of gamma rays due to the load. It is supposed to do.

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

Further, the material constituting the is not particularly limited, for example, a water-blocking sheet for packaging, a bag made of a water-blocking sheet, a rubber-coated cloth sheet obtained by pressure-bonding fluororubber and an aramid fiber base cloth, fluorine. Rubberized cloth sheet made by pressure bonding rubber, aramid fiber base cloth and aluminum foil base cloth, glass fiber woven fabric, aluminum foil, aluminum fluororesin sheet made by pressure bonding with aluminum foil base cloth and fluororesin film, rubber and aluminum Rubberized cloth glass fiber woven fabric formed by crimping a foil base fabric, rubberized fabric sheet formed by crimping a nylon base fabric and rubber, rubberized fabric sheet formed by crimping a nylon base fabric and a thermoplastic polyurethane elastomer, Rubberized fabric sheet made by crimping polyester base fabric with thermoplastic polyurethane elastomer and rubber, rubberized fabric sheet made by crimping aramid fiber and silicone rubber, rubber made by crimping polyester base fabric with polyethylene rubber or chloroprene rubber It is preferable to select either a pulling cloth sheet or a polyethylene resin sheet. Further, the present invention in a form in which a plurality of materials of the selected water-blocking sheet and bag body are stacked is also preferable.
The shape of the present invention may also be selected by a method of manufacturing and stacking any shape body such as a cube, a rectangular parallelepiped, a triangular pyramid, a quadrangular pyramid, a cylinder, a disc, and a plate.

Water-containing hollow plate 1
Front thin plate 2
Back thin plate 3
Rib 4
Water-containing space 5
Water retention base material 6
Packaging water retention base 7
Lid 8
Lid bottom plate 8-A
Closed end face 9
Closing member 10
Band-shaped through hole 11
Through hole 12
Planting hole 13
Through hole rib 14
Irrigation pipe 15
Fixing member 16
Water-permeable sheet with activated carbon 17
Closure welding 18
Impermeable plate 19
Net 20
Hollow plate 21
Hollow underdrain 22
Strip-shaped through-hole forming drainage pipe 23
Block 24
Water injection port and lid 25
Reinforcing bar 26
Concrete foundation 27
Nonwoven sheet 28
Junction 29
Spiral 30
Rolled object 31
Bag 32
Soil 33
Plant seeds 34
Package 35
Notch 36
Box 37
Development 38
Forest ground 39
Tree 40
Non-combustible material, flame-retardant material, disaster prevention material 41
Water repellent insulation 42
Joint 43
Solid linear pedestal 44
Cradle 45
Pile 46
Bottom base plate 47
Bottom plate drain hole 48
Radioactive material contaminated ground 49
H steel 50
Wire rope 51
Drain gutter 52
Terminal nuts and bolts 53
Wall greening structure 54
Edge material 55
Drain 56
Turf grass 57
Surplus water 58
Radiation emission waste 59
Water-containing hollow plate door 60
Radiation Emissions Shielding Cover Sheet 61
Radiation Emission Storage Fort 62
Rainwater infiltration basin 63
Rainwater infiltration pit 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 contaminants 71
Inner container lower base 72
Outer and inner lower pedestal 73
Hanging string 74
Loading platform 75
Impermeable sheet 76
Radioactive contaminants storage bag 77
Rainwater collection board 78
Rainwater passage piping 79
Rooftop 80
Rainwater storage tank 81
Floating switch Electric water pump 82
Underground irrigation tube 83
Rooftop greening area 84
Building roof or roof 85
Pedestal 86
Biodegradation sheet 87
Oblate Sheet 88
Linear joint 89
Zeolite 90
Driveway 91
Rainfall 92
Radioactive material-contaminated soil 93
Road slope 94
Plant 95
Drainage channel 96
Convex surface 97
Reservoir 98
Grid 99
Polymer water absorbent resin 100
Rock wool granular cotton 101
Aggregate 102
Iron plate 103
Cushion material 104
Support material 105
Anti-disaster sheet 106
Concrete base material 107
Waterway 108
Heavy goods 109
Types of resin-added pigment colors (dark blue, blue, green, black, gray, purple, brown, red) 110
Split outer container wall 111
Split inner container wall 112
Gutter 113
Masu 114
Water storage tank 115
Radiation reduction wall structure 116
Radiation transmission reducing constituent base material 117
Gas phase section 118
Liquid phase part 119
Activated carbon 120

Claims (1)

A water-conducting structure in which a hollow underdrain plate in which a liquid flows in a hollow plate shape and a drain pipe are connected to each other, wherein the hollow underdrain plate has a plurality of back thin plates and front thin plates arranged substantially parallel to each other. Are laminated via plate-shaped ribs, a drainage channel is formed between the front thin plate, the back thin plate, and the rib, and at least one of the back thin plate and the front thin plate is formed. , A plurality of through-holes penetrating in the plate thickness direction are formed, and the hollow underdrain plate is one of the back thin plate and the front thin plate with one of the back thin plate and the front thin plate left. Or the other and the rib are cut in the plate thickness direction, and by bending one of the back thin plate and the front thin plate , the end of the hollow underdrain plate extends the rib. Is bent in a direction substantially orthogonal to the direction, the drain pipe is formed with at least one band-shaped through hole extending in the band direction in the axial direction of the drain pipe and penetrating in the radial direction, the hollow A water guiding structure, wherein an end of the underdrain plate is inserted into the band-shaped through hole, and the liquid flowing inside the hollow underdrain plate is discharged toward the drain pipe.