JP2011041518A - Greening material, greening structure, and method for producing greening structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a greening structure on which plants favorably grow after construction and from which soil is extremely little flown. <P>SOLUTION: A greening material 12 deformable by outer pressure is produced by covering the surface of a spherical mass body 11 consisting mainly of culture soil 10 with biodegradable resin 13. The greening structure 16 is completed by: housing a plurality of the thus-formed greening materials 12 in a frame 14 followed by blocking the top surface opening part 14a of the frame 14 with a lid 15 to pressurize the greening material 12 in the frame 14 so that the greening materials 12 in the frame 14 are deformed by pressurization force from the lid 15 and the adjacent greening materials 12 come in contact with each other; thereafter grouting mortar M into the greening material through a grouting port 14b opened in the vicinity of the bottom surface of the side surface of the frame 14 to be filled among the greening materials 12; and finishing solidification and cure of the mortar M charged in the frame 14 followed by getting the structure out of the frame. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a greening material, a greening structure, and a greening structure manufacturing method used as a greening material in various civil engineering construction works such as revetment construction and road construction.

  Various materials have been proposed in the past as materials used for greening in various civil engineering construction works such as revetment work and road construction, but "plant seed-containing bodies" have been proposed as greening materials related to the present invention. And a “greening matrix” has been proposed (see, for example, Patent Document 1). The “plant seed-containing body” described in Patent Document 1 is obtained by solidifying a mixture of culture soil and plant seeds using a biodegradable resin. Similarly, the “greening matrix body” forms a continuous phase. The “plant seed-containing body” is dispersed as a dispersed phase in a base material such as porous concrete.

  On the other hand, in the agricultural field different from the technical field of the present invention, a liquid agent containing a decomposable resin is spread on the surface and solidified, so that the film of the decomposable resin can be used as an alternative to the agricultural multifilm. A technique for forming a film has been proposed (see, for example, Patent Document 2).

JP 2003-293373 A JP 11-299369 A

  In the matrix body for greening described in Patent Document 1, since the periphery of a plant seed-containing body is surrounded by a continuous phase such as porous concrete or a curable resin, germination of seeds inherent in the plant seed-containing body is difficult. Sometimes. Further, the area where the roots of the plant after germination can grow is within the range of each plant seed-containing body, and a gap formed between the plant seed-containing body and the continuous phase by decomposition of the biodegradable resin, Therefore, the rooted area is limited, and plant growth may not be good.

  Although the agricultural film described in Patent Document 2 is excellent as an alternative to agricultural multi-film, it is difficult to use as an afforestation material when building revetments or retaining walls.

  The problem to be solved by the present invention is to provide a greening material in which the growth of plants after construction is good and the cultivation soil is very little lost.

  The greening material of the present invention is characterized in that it is formed by coating the surface of a lump body mainly composed of cultivated soil with a biodegradable resin or a pulp mold, and can be deformed by pressurization.

  A plurality of greening materials according to the present invention are arranged in close contact with each other in a greening target region, and a part of the greening material is exposed on the surface of the greening target region in a state where these greening materials are pressure-deformed. If the space between these greening materials is filled with a solidifying material such as concrete or mortar and solidified, the soil in the greening material and the solidifying material such as concrete or mortar will be biodegradable resin or While it is divided by the pulp mold so as not to interfere with each other, the biodegradable resin and the pulp mold covering the surface of the greening material gradually decompose with the passage of time, so that the surface of the greening material in the greening target region The soil is exposed, and a soil aggregate in which all the soils in adjacent greening materials are continuous is formed inside the greening target region.

  Therefore, plants that have sprouted on the soil exposed on the surface of the area to be replanted can be rooted widely in the soil assembly formed in the area to be replanted, and the plant grows after construction. Becomes better. In addition, since the surface of the greening material immediately after the construction is covered with a biodegradable resin or pulp mold, the soil in the greening material is not easily washed away by rainwater or running water. Since the soil in the greening material after the pulp mold is decomposed is held by a solidifying material such as concrete or mortar that hardens the periphery, there is very little loss of the soil after construction.

  The greening material of the present invention is characterized in that it is formed by coating the surface of a two-dimensional lattice body or a three-dimensional lattice body mainly composed of cultivation soil with a biodegradable resin or a pulp mold. Here, the two-dimensional lattice body is a lattice body having a predetermined thickness, and refers to a lattice body having a shape that is larger than the thickness and spread in a planar shape or a curved shape. Refers to a lattice body having a shape that expands three-dimensionally in the vertical, horizontal, and height directions.

  A single greening material according to the present invention is disposed in the greening target region in a state in which a part of the greening material is exposed on the surface of the greening target region, and then solidified material such as concrete or mortar is placed in a gap between the lattices as the greening material If the soil is filled and solidified, the soil in the greening material and the solidifying material such as concrete and mortar are partitioned so as not to interfere with each other by a biodegradable resin or pulp mold. As the biodegradable resin and pulp mold that covers the surface of the wood gradually decomposes, the soil in the greening material is exposed on the surface of the greening target area, and the inside of the greening target area has a two-dimensional lattice or tertiary A soil aggregate in the shape of the original lattice is formed.

  On the other hand, after arranging a plurality of greening materials according to the present invention in close contact with the greening target region and with a part of the greening material exposed on the surface of the greening target region, concrete is placed in the gap between the greening materials. If solidified material such as mortar or mortar is filled and hardened, a soil aggregate having a shape of a two-dimensional lattice or a three-dimensional lattice is formed inside the area to be greened, which is wider than that of a single greening material. The

  As a result, the soil in the greening material and the solidified material such as concrete and mortar are partitioned so as not to interfere with each other by the biodegradable resin or pulp mold, while exposed to the surface of the greening target region as described above. Plants that have landed on the soil and germinated can be widely rooted in the soil assembly formed in the greening target region, so that the plant grows well after construction. In addition, since the surface of the greening material immediately after the construction is covered with a biodegradable resin or pulp mold, the soil in the greening material is not easily washed away by rainwater or running water. Since the soil in the greening material after the pulp mold is decomposed is held by a solidifying material such as concrete or mortar that hardens the periphery, there is very little loss of the soil after construction.

  Next, the greening structure of the present invention comprises a plurality of greening materials formed by coating the surface of a lump body mainly composed of cultivated soil with a biodegradable resin or pulp mold, and concrete, mortar or curable resin. , Wherein the greening materials are in contact with each other, and at least a part of the greening material is exposed on the surface of the greening structure. Here, the curable resin has fluidity when filled into a mold, and has a property of solidifying by evaporation of solvent components, reaction between components, irradiation of electromagnetic waves or light after filling is completed. Natural resin or synthetic resin.

  With such a configuration, the culture medium in the greening material and concrete, mortar, etc. are partitioned so as not to interfere with each other by the biodegradable resin or pulp mold, and are included in the greening structure as time passes. As the biodegradable resin and pulp mold covering the surface of the greening material are gradually decomposed, the soil in the greening material is exposed on the surface of the greening structure, and inside the greening structure, A cultivated soil aggregate is formed in which the cultivated soils in adjacent greening materials are all in a continuous state. Therefore, plants that have sprouted on the soil exposed on the surface of the greening structure can be rooted broadly into the soil aggregate formed inside the greening structure, and the plant grows after construction. Becomes better. In addition, since it is not necessary to dispose the soil at the time of concrete block construction, which is necessary in the conventional greening work using the concrete block, it is possible to achieve a significant labor saving of the construction.

  Furthermore, since the surface of the greening material immediately after the construction of the greening structure is covered with a biodegradable resin or pulp mold, the soil in the greening material is not easily washed away by rainwater or running water. The soil in the greening material after the biodegradable resin or pulp mold has decomposed is held immovable by the concrete, mortar, or curable resin that hardens the surroundings, so that the soil after the construction can be washed away. Few.

  Next, the greening structure of the present invention includes one or a plurality of greening materials formed by coating the surface of a two-dimensional lattice body or a three-dimensional lattice body mainly composed of soil with biodegradable resin or pulp mold. , Concrete, mortar, or curable resin, wherein at least a part of the greening material is exposed on the surface of the greening structure.

  With such a configuration, the soil in the greening material and the concrete, mortar, or curable resin are partitioned so as not to interfere with each other by the biodegradable resin or the pulp mold. The biodegradable resin or pulp mold that covers the surface of the greening material contained in the body gradually decomposes, so that the soil is exposed on the surface of the greening structure, and there are two A soil aggregate spread in a three-dimensional lattice shape or a three-dimensional lattice shape is formed. Therefore, plants that have sprouted on the soil exposed on the surface of the greening structure can be widely rooted in the soil assembly inside the greening structure, and the plant growth after construction is good. Become. In addition, since it is not necessary to dispose the soil at the time of concrete block construction, which is necessary in the conventional greening work using the concrete block, it is possible to achieve a significant labor saving of the construction.

  In addition, the shape of the soil exposed on the surface of the greening structure is regularized by forming a two-dimensional lattice-like or three-dimensional lattice-like soil aggregate within the greening structure, so that the appearance and Designability is improved. In addition, by changing the lattice shape, lattice size, lattice arrangement state, etc. in the greening material having a two-dimensional lattice shape or three-dimensional lattice shape, the shape, size, arrangement state, etc. of the soil aggregate in the greening structure Therefore, a greening structure suitable for the construction site conditions and construction conditions can be formed.

  In addition, since the surface of the greening material immediately after the construction of the greening structure is covered with a biodegradable resin or pulp mold, the soil in the greening material is not easily washed away by rainwater or running water. The soil in the greening material after the biodegradable resin or pulp mold has been decomposed is held by concrete, mortar, or curable resin that hardens the periphery thereof, so that there is very little loss of soil after construction.

  Next, the method for producing a greening structure is a step of forming a greening material by covering the surface of a lump body mainly composed of cultivated soil, a two-dimensional lattice or a three-dimensional lattice with a biodegradable resin or a pulp mold, A step of accommodating one or a plurality of the greening materials in a mold, a step of filling concrete, mortar, or curable resin in the mold, and a step of solidifying the concrete, mortar, or curable resin. It is characterized by having.

  With such a configuration, at least a part of the greening material is exposed on the surface, and a greening structure including a soil aggregate in the shape of a lump, a two-dimensional lattice, or a three-dimensional lattice can be formed. it can. Therefore, the soil in the greening material and the concrete, mortar, or curable resin are partitioned so as not to interfere with each other by the biodegradable resin or the pulp mold, while the green material that covers the surface of the greening material with the passage of time. As the degradable resin and pulp mold gradually decompose, plants that have landed and germinated on the soil exposed on the surface of the greening structure may have a broad root toward the culture aggregate inside the greening structure. Since it becomes possible, the growth of the plant after construction becomes favorable.

  In addition, since the surface of the greening material immediately after production is covered with a biodegradable resin or pulp mold, the soil in the greening material is not easily washed away by rainwater or running water. Since the soil in the greening material after the pulp mold is decomposed is held by concrete, mortar, or curable resin that hardens the periphery, there is very little loss of soil after construction.

  Here, between the step of accommodating a plurality of the greening materials in a mold and the step of filling the mold with concrete, mortar or curable resin, the greening accommodated in the mold It is desirable to provide a step of applying pressure to the material.

  With such a configuration, in the step of filling concrete, mortar, or curable resin, the greening material in the mold can be prevented from being lifted, so that the contact state between the greening materials can be maintained.

  In this case, it is desirable that the greening material can be deformed by pressurization. With such a configuration, by applying pressure to the greening material accommodated in the formwork or due to the weight of the greening material, the contact state between the greening materials adjacent in the formwork is changed from “point contact”. Since it becomes possible to change to “surface contact”, the contact area between the greening materials increases, the continuity of the soil aggregate formed inside the greening structure becomes good, and it is effective for the growth of the plant.

  In addition, the greening material is deformed by the pressure applied to the greening material housed in the formwork and the weight of the greening material, so that the adhesion between adjacent greening materials and the adhesion between the greening material and the inner surface of the formwork are improved. Increases the gap between the greening materials and the intrusion of concrete, mortar, or curable resin between the greening material and the formwork, so the continuity of the soil aggregate within the greening structure and the soil on the surface of the greening structure It is effective for improving the growth of plants.

  According to the present invention, it is possible to provide a greening material, a greening structure, and a method for producing a greening structure, in which the plant grows well after construction and the cultivation soil is very little lost.

It is the schematic which shows the manufacturing process of the greening structure which is 1st embodiment of this invention. It is the schematic which shows the construction example of the greening structure shown in FIG. It is the schematic which shows the manufacturing process of the greening structure which is 2nd embodiment of this invention. It is a perspective view of the greening material which comprises the greening structure shown in FIG. It is the schematic which shows the manufacturing process of the greening structure which is 3rd embodiment of this invention. It is the schematic which shows the manufacturing process of the greening structure which is 3rd embodiment of this invention. It is a perspective view of the greening material which comprises the greening structure which is 3rd embodiment of this invention. It is a perspective view of the greening material which comprises the greening structure which is 3rd embodiment of this invention. It is a perspective view of the greening material which comprises the greening structure which is 3rd embodiment of this invention. It is a perspective view which shows the greening structure which is 3rd embodiment of this invention. It is a figure which abbreviate | omits and shows the use condition of the greening structure shown in FIG. FIG. 12 is a partially enlarged view of FIG. 11.

  The first embodiment will be described with reference to FIGS. As shown in FIG. 1 (a), after forming a spherical lump 11 composed mainly of the cultivation soil 10, the surface of the lump 11 is covered with a biodegradable resin 13 as shown in FIG. 1 (b). By doing so, the greening material 12 is formed (FIG. 1C). Since the culture medium 10 and the biodegradable resin 13 have flexibility, the greening material 12 can be deformed by applying pressure from the outside.

  The plurality of greening materials 12 formed in this way are accommodated in a mold 14 as shown in FIG. At this time, the greening materials 12 in the mold 14 are in point contact with each other. Next, as shown in FIG. 1 (e), pressure is applied to the greening material 12 in the mold 14 by closing the upper surface opening 14 a of the mold 14 with a lid 15 that also serves as a weight. Since the greening material 12 in the mold 14 is deformed by the pressure applied from the lid 15, the contact area between the adjacent greening materials 12 is in surface contact.

  Next, as shown in FIG.1 (f), the mortar M is inject | poured from the injection hole 14b opened in the bottom face vicinity of the formwork 14 side surface. The mortar M injected into the mold 14 is filled in the gaps between the plurality of greening materials 12. When filling of the mortar M is completed, curing is performed as shown in FIG. After the solidification and curing of the mortar M filled in the mold 14 is completed, the greening structure 16 as shown in FIG.

  In the present embodiment, the biodegradable resin 13 is not particularly limited, and any other material such as a pulp mold can be used as long as it has a property of decomposing with the passage of time. Moreover, although the greening structure 16 shown in FIG.1 (h) is a substantially rectangular parallelepiped shape, since it is not limited to this, it can be changed into the shape suitable for construction conditions.

  Next, based on FIG. 2, the construction example of the greening structure 16 is demonstrated. The greening structure 16 shown in FIG. 2 (a) formed through the manufacturing process shown in FIG. 1 is entirely installed on the slope of the construction site as shown in FIG. 2 (b). These installation works can be performed by conventional methods.

  With the passage of time thereafter, the biodegradable resin 13 (see FIG. 1B) on the surface of the greening material 12 of the greening structure 16 is gradually decomposed by bacteria or the like in the lump 11, so that FIG. As shown in c), in the greening structure 16, the cultivation soil 10 (see FIG. 1B) constituting the adjacent lump 11 is in a continuous state. Moreover, the cultivation soil 10 (refer FIG.1 (b)) which comprises the lump body 11 will also be in the state exposed also on the greening structure 16 surface. In this way, as the biodegradable resin 13 is decomposed and the exposed portion of the soil 10 is increased on the surface of the greening structure 16, the seeds land on the exposed soil 10 and, as shown in FIG. Since 17 grows, the slope on which the greening structure 16 is installed can be greened.

  In the greening structure 16 after the biodegradable resin 13 is decomposed, the soil 10 constituting the adjacent lump 11 is formed as a continuous soil aggregate. Therefore, the plant 17 faces the culture soil aggregate. It is possible to spread the roots widely, and the plant 17 grows well after the construction. Further, as shown in FIG. 2 (d), the root 17 </ b> R of the plant 17 can continuously pass through the above-mentioned cultivated soil aggregate in the greening structure 16 and grow into a natural ground. It is effective for growth and contributes to the stable maintenance of the greening structure 16.

  On the other hand, since the surface of the greening material 12 immediately after the construction is covered with the biodegradable resin 13, the soil 10 in the greening material 12 is not easily washed away by rainwater or running water, and the biodegradable resin Since the cultivated soil 10 in the greening material 12 after 13 is decomposed is held by the mortar M solidifying the periphery thereof, the cultivated soil 10 after the construction is very little lost. In addition, in the process shown in FIG.1 (f), a greening structure can also be formed by filling the mold form 14 with curable resin instead of the mortar M, and making it solidify.

  Next, based on FIG. 3, FIG. 4, 2nd embodiment of this invention is described. In the present embodiment, as shown in FIG. 3A, a greening structure 26 shown in FIG. 3D is obtained by using a greening material 12 in a spherical shape, a greening material 22 in the form of a three-dimensional lattice, and a mortar M. Is forming. The greening material 12 is the same as that shown in FIG. 1B, but the greening material 22 has a shape as shown in FIG. As shown in FIG. 4, the greening material 22 is formed by covering the entire surface of the three-dimensional lattice body 21 mainly composed of the cultivation soil 10 with the biodegradable resin 13, and the bottom surface portion is flat. There is no.

  As shown to Fig.3 (a), the greening material 22 is arrange | positioned at the bottom part of the formwork 24, and the several greening material 12 is accommodated in the upper part. When the greening material 12 is accommodated to a level that rises slightly from the upper surface opening 24a of the mold 24, as shown in FIG. 3B, the upper surface opening 24a of the mold 24 is closed with a lid 25 that also serves as a weight. To do. Thereby, only the greening material 12 in the mold 24 is deformed by the pressure applied by the lid 25, and the contact portion between the greening materials 12 and the contact portions of the greening materials 12 and 22 change from the point contact state to the surface contact state. At the same time, the contact portion between the greening material 22 and the mold 24 is in a state where the greening material 22 is in close contact with the inner surface of the mold 24 without a gap.

  Next, as shown in FIG. 3 (c), while applying vibration to the mold 24, mortar M is injected from the inlet 24 opened near the bottom of the side surface of the mold 24, and the gap between the greening materials 12, 22. Is filled with mortar M. At this time, since pressure is acting in the mold 24 by the lid 25 that closes the upper surface opening 24a of the mold 24, the greening materials 12 and 22 are prevented from being lifted, and the close contact portion between the greening materials 12, It is possible to prevent the mortar M from entering between the close contact portion between the greening material 12 and the greening material 22 or between the greening material 22 and the inner surface of the mold 24.

  Thereafter, when the mortar M is solidified and cured and then removed from the mold, a greening structure 26 as shown in FIG. 3D is completed. Since the biodegradable resin 13 gradually decomposes in the greening structure 26 after completion, a medium aggregate in which the medium 10 constituting the greening materials 12 and 22 is continuously formed is formed, and the greening structure is formed. The surface of the body 26 is in a state where a part of the medium 10 is exposed. Therefore, the plant germinated in the culture medium 10 on the surface of the greening structure 26 can be widely rooted into the culture soil aggregate, and the growth of the plant after construction is good.

  On the other hand, since the surfaces of the greening materials 12 and 22 in the greening structure 26 immediately after completion are covered with the biodegradable resin 13, the soil 10 in the greening materials 12 and 22 can be easily formed by rainwater or running water. Since the soil 10 in the greening materials 12 and 22 after the biodegradable resin 13 is decomposed without being washed away is held by the mortar M solidified around the soil aggregate of the three-dimensional lattice structure. There is very little loss of the soil 10 after construction.

  In particular, since the greening structure 26 is formed by combining the greening material 12 having a spherical shape and the greening material 22 in the form of a three-dimensional lattice, a non-linear three-dimensional lattice is formed by the adjacent greening materials 12. As a result of the formation of the body structure medium aggregate, and the peripheral portion of the greening material 22 having a three-dimensional lattice structure is exposed on the surface of the greening structure 26 at regular shapes and intervals, the exposed medium is exposed on the surface of the greening structure 26. Since the is arranged regularly, the appearance and design are improved.

  Next, a third embodiment of the present invention will be described based on FIGS. In the present embodiment, the three-dimensional lattice-like greening materials 32, 32a, and 32b shown in FIGS. 7, 8, and 9 are used, and the steps shown in FIGS. A greening structure 36 is formed. The greening material 32 shown in FIG. 7 has a substantially rectangular shape in plan view, the greening material 32a shown in FIG. 8 has a convex shape in plan view, and the greening material 32b shown in FIG. 9 has a substantially trapezoidal shape in plan view. ing. The greening materials 32, 32a, and 32b are all formed by covering the entire surface of the three-dimensional lattice having the cultivation soil 10 as a main component with the biodegradable resin 13, and each bottom portion is flat. ing.

  5 and 6 show the manufacturing process in a state where the mold 34 is set so that the front portion 36a of the greening structure 36 shown in FIG. 10 is located on the lower surface, and FIG. FIG. 6 is a vertical sectional view seen from the direction (arrow F direction in FIG. 10), and FIG. 6 is a vertical sectional view seen from the side surface direction (arrow S direction in FIG. 10) of the mold 34. Moreover, each process of Fig.5 (a)-(d) and each process of Fig.6 (a)-(d) have shown the respectively same corresponding state.

  As shown in FIGS. 5 (a) and 6 (a), three types of greening materials 32, 32a and 32b (FIGS. 7 to 5) are formed in the cavity from the bottom in the mold 34 to the top opening 34a. 9) is arranged in a stacked state. In this case, the three types of greening materials 32, 32a, and 32b are arranged properly depending on the horizontal size, shape, etc. in the cavity of the formwork 34. Further, as shown in FIG. 6A, it is desirable that the three-dimensional lattice bodies constituting the greening materials 32, 32a, and 32b adjacent in the vertical direction are shifted from each other so as not to have the same phase as much as possible.

  When the uppermost greening material 32 reaches the upper surface opening 34 a of the mold 34, the upper surface opening 34 a of the mold 34 is closed with a lid 35 as shown in FIGS. 5 (b) and 6 (b). In this case, the lid 35 exhibits an effect of increasing the adhesion between the greening materials 32, 32a, 32b and the inner surface of the mold 34, and an effect of preventing the greening materials 32, 32a, 32b from being lifted in a concrete filling process described later.

  Thereafter, as shown in FIGS. 5 (c) and 6 (c), the concrete C is poured into the mold 34 while applying vibration to the mold 34, and the concrete C is poured into the gaps between the greening materials 32, 32a and 32a. Fill. Thereafter, after the concrete C is solidified and cured, it is removed from the mold, and a greening structure 36 as shown in FIGS. 5 (d), 6 (d) and 10 is completed.

  Since the biodegradable resin 13 gradually decomposes in the greening structure 36 after completion, a medium aggregate in which the medium 10 constituting the greening materials 32, 32a, 32b is entirely continuous is formed, As shown in FIG. 10, the exposed portion 10 a of the culture medium 10 appears on the surface of the greening structure 36. Therefore, the plants germinated in these exposed portions 10a can be widely rooted in the culture aggregate formed by the greening materials 32, 32a, 32b, and the growth of the plants after construction is good. is there.

  On the other hand, since the surfaces of the greening materials 32, 32a, 32b in the greening structure 36 immediately after completion are covered with the biodegradable resin 13, the cultivated soil in the greening materials 32, 32a, 32b by rain water, running water, or the like. 10 is not easily washed away. Moreover, since the cultivation soil 10 in the greening materials 32, 32a, 32b after the biodegradable resin 13 is decomposed is held by the concrete C solidified around the cultivation material 10, there is very little loss of the cultivation soil 10 after construction. .

  In particular, the greening structure 36 has a built-up soil aggregate formed by stacking three-dimensional lattice-shaped greening materials 32, 32a, 32b, so that the soil 10 (see FIGS. 7 to 9) is washed away. As shown in FIG. 10, since the exposed portions 10a of the soil 10 appear regularly on the surface of the greening structure 36, the appearance and design are excellent. Moreover, since the number and arrangement | positioning state of the greening materials 32, 32a, 32b laminated | stacked and arrange | positioned in the formwork 34 in the manufacturing process shown in FIG.5, FIG.6 can be adjusted, generally used kneaded concrete Or the greening structure 36 can be manufactured using highly fluid concrete.

  Further, the size and shape of the soil aggregate formed in the greening structure 36 can be changed by changing the number and arrangement state of the greening materials 32, 32a, 32b arranged in the formwork 34. Therefore, the greening structure 36 suitable for the conditions of the construction site can be formed.

  Here, based on FIG. 11, FIG. 12, the usage example of the greening structure 36 shown in FIG. 10 is demonstrated. The greening retaining wall 45 shown in FIG. 11 includes a backing material 41 and foundation concrete 42 placed on the slope of the natural ground 40, and a plurality of greening structures 36 arranged along the surface of the backing material 41. In addition, it is constituted by a trunk concrete 43 placed between adjacent greening structures 36 and a ceiling concrete 44 placed on the uppermost greening structure 36. The plurality of greening structures 36 are arranged such that the front portion 36 a is positioned on the surface of the greening retaining wall 45.

  In the greening structure 36 constituting the greening retaining wall 45, as described above, since the biodegradable resin 13 is gradually decomposed, the culture medium 10 constituting the greening materials 32, 32a, 32b is entirely continuous. As a result, the exposed portion 10a of the medium 10 appears on the surface of the greening structure 36. Therefore, as shown in FIG. 12, the plant 17 that germinates at the exposed portion 10a (see FIG. 10) of the front portion 36a of the greening structure 36 that forms the surface of the greening retaining wall 45 is the greening materials 32, 32a, and 32b. It is possible to spread the root 17R widely toward the cultivated soil aggregate formed in the above, and to stretch the root 17R toward the backing material 41 and the natural ground 40 through the greening structure 36. Since the water and nutrients can be supplied from the material 41 and the natural ground 40 to the side of the cultivated soil aggregate, the growth of the plant 17 after construction is extremely good.

  Moreover, since the exposed part 10a will be in the state closely_contact | adhered in the contact part of the adjacent greening structure bodies 36 in the greening retaining wall 45, the cultivation soil 10 of the greening materials 32, 32a, and 32b will be in the continuous state also in this part. As a result, a continuous soil aggregate is formed on the entire greening retaining wall 45. As a result, the plant 17 can not only spread the root 17R so as to spread throughout the greening retaining wall 45, but also can diffuse and penetrate moisture and nutrients throughout the greening retaining wall 45. The growth of 17 is extremely good, and it is effective for holding the green retaining wall 45.

  In addition, since this invention is not limited to embodiment and the example of use mentioned above, according to a use, construction conditions, etc., the kind of cultivation soil, the size, shape, structure, etc. of a greening material or a greening structure are changed. Can do. It is also possible to speed up the greening after construction by adding plant seeds and fertilizer components in advance in the cultivation of greening materials. Use solidifying materials such as curable resins in addition to concrete and mortar. You can also.

  The greening structure according to the present invention can be widely used as a greening material in various civil engineering construction works such as revetment works and road works.

DESCRIPTION OF SYMBOLS 10 Cultivation 10a Exposed part 11 Mass 12, 22, 32, 32a, 32b Greening material 13 Biodegradable resin 14, 24, 34 Formwork 14a, 24a, 34a Upper surface opening 14b, 24b Inlet 15, 25, 35 Lid 16, 26, 36 Tree planting structure 17 Plant 17R Root 36a Front part 40 Ground mountain 41 Backing material 42 Foundation concrete 43 Trunk concrete 44 Top end concrete 45 Tree retaining wall C Concrete F, S Arrow line M Mortar

Claims (7)

  A greening material characterized in that it is formed by coating the surface of a lump body mainly composed of culture medium with a biodegradable resin or a pulp mold and can be deformed by pressurization.   A greening material formed by coating the surface of a two-dimensional lattice or three-dimensional lattice composed mainly of culture soil with a biodegradable resin or pulp mold.   A greening structure comprising a plurality of greening materials formed by coating the surface of a lump body mainly composed of culture medium with a biodegradable resin or pulp mold, and concrete, mortar or curable resin, A greening structure, wherein the greening materials are in contact with each other, and at least a part of the greening material is exposed on the surface of the greening structure.   One or more greening materials formed by coating the surface of a two-dimensional lattice or three-dimensional lattice composed mainly of culture medium with a biodegradable resin or pulp mold, and concrete, mortar or curable resin. A greening structure comprising the greening structure, wherein at least a part of the greening material is exposed on a surface of the greening structure.   A step of forming a greening material by coating the surface of a lump, a two-dimensional lattice or a three-dimensional lattice with a culture medium as a main component with a biodegradable resin or a pulp mold, and forming one or a plurality of the greening materials into a formwork A greening structure characterized by comprising: a step of housing in a mold; a step of filling concrete, mortar or curable resin into the mold; and a step of solidifying the concrete, mortar or curable resin. Production method.   A pressure is applied to the greening material housed in the mold between the step of housing the greening material in the mold and the step of filling the mold with concrete, mortar, or curable resin. The greening structure manufacturing method according to claim 5, wherein a step of adding is provided.   The greening structure manufacturing method according to claim 5 or 6, wherein the greening material is deformable by pressure.

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