KR900003035B1 - Block for preserving soil of lawn - Google Patents

Abstract

This invention is about blocks to preserve soil to raise lawn on surfaces concreted. The block is formed by a body (1) in a form of polygonal frame. The body made of waste plastic has flange (2) in upper part. There are many water holes (3) on the flange. A water- proof sheet can be placed in the cavity formed by the body, if need be. Projection can be established on the flange as an index.

Description

Lawn soil maintenance blocks

1 is a perspective view showing a lawn soil maintenance block of the embodiment of the present invention.

2 is a cross-sectional view of FIG.

3 is a view illustrating a state in which a plurality of lawn soil maintenance blocks are arranged in alignment.

FIG. 4 is a view showing a state in which grass is transplanted to a lawn group for maintaining a lawn in FIG.

5 through 10 illustrate another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1, 71, 81: frame body 2, 72, 73, 83, 104: flange

3, 65, 66, 74, 84, 93, 103: bucket and hole 4: waterproof sheet

8: water holding layer 51: water holding layer holding member

52, 57, 64: cavity 53: vertical wall

62, 63: vertically installed walls 72a, 73a, 72b, 73b: bends

101: cylindrical body 7, 104: drainage

The present invention relates to a lawn soil maintenance block for maintaining the soil necessary to grow grass on the roof of a concrete building, concrete pavement surface and the like.

When a concrete building or the like is used in an exposed state, an artificial feeling is usually strongly felt, and the viewer cannot feel comfortable. In recent years, artificial turf has been laid on the surface of rooftops and verandas of such concrete buildings, creating a visually recorded atmosphere.

However, such artificial turf soon became bored because it was artificial. In addition, when used for a long time, it is necessary to change anew because it burns and discolors. Thus, attempts to cultivate natural grass on the concrete surface in place of this artificial grass have been studied.

By the way, cultivation of plants requires soil of predetermined thickness as a matter of course. Therefore, when the soil is piled up on the roof or veranda, the weight of the soil exceeds the design strength of the concrete building.

For example, when the grass is usually planted, the required soil thickness is 300 to 600 mm, whereby a force of 400 to 800 kg / m 2 is normally applied to the concrete building. However, in the concrete building according to the conventional design, the loading load of floors, slabs and the like is about 180 kg / m 2, and when the above-mentioned forces of 400 to 800 kg / m 2 are normally applied to the concrete of such a design strength, Deformation or collapse of buildings may occur.

In this respect, it is impossible to install lawn soil by the conventional method. In addition, when a structure having a design strength capable of withstanding 400 to 800 kg / m 2 is provided, the cost of the entire building becomes very expensive.

In addition to the roofs and verandas of concrete buildings, natural grass is used for laying natural grasses on tee ground, tennis courts, etc. You need to thicken it and the work takes time.

Therefore, an object of the present invention is to provide a lawn soil maintenance block capable of reducing the load on concrete buildings and the like and forming soil in which natural grass can be transplanted on the concrete surface in a short time.

In order to achieve the object, the first lawn soil maintenance block according to the present invention forms a flange that protrudes laterally in the horizontal direction on the top of the polygon-shaped frame body, and drills several buckets and holes in the flange. It is characterized by the installation.

Here, depending on the material of the concrete supporting the lawn soil, the waterproof sheet may be provided taut in the lower portion of the inner space partitioned by the frame-shaped body. Further, it is preferable to arrange the water holding layer support member and / or the water supply member in the inner space partitioned by the frame-shaped body.

Some water retaining layer supporting members have vertical walls that form a plurality of vertically extending cavities.

On the other hand, the water supply member is provided with a pair of upright walls that form a cavity extending in the vertical direction, and a water tank and a hole are installed in one upright wall, and the other upright wall has no holes. There is a plate shape.

Moreover, as a frame-shaped main body, the flange which protruded to the side at least on one side is provided, and it is set as the bend part which extends the front part of this flange upward, and the 2nd which protruded to the side at least in the upper part of the side facing each other on the said one side It is also possible to use a flange in which a flange is provided and the front end of the second flange extends downward.

The second lawn soil maintenance block is formed by forming a flange without a hole in the upper side of the polygonal frame-shaped body horizontally and drilling a plurality of buckets and holes at a constant height on the lower sidewall of the flange. It is characterized by.

Even when the lawn soil holding block is used, a waterproof sheet or a bottom plate integrally formed with the frame body may be provided in the lower portion of the inner space partitioned by the frame body. In addition, a water holding layer support member having a vertical wall that forms a plurality of vertically extending cavities may be disposed in the inner space partitioned by the frame body.

At this time, the water holding layer support member may be formed integrally with the bottom plate disposed in the lower portion of the inner space partitioned by the frame-shaped body. The third lawn soil maintenance block is formed by forming a bucket and a hole for passing water in the water holding layer on the upper surface of a tubular body having a cavity drained at the center, and partitioned by several of the tubular bodies. Characterized in that the inside as a space for lawn soil maintenance.

Even when this lawn soil maintenance block is used, it is preferable to arrange | position the said water holding layer support member and / or a water supply member in the inside partitioned by several cylindrical body.

Hereinafter, the features of the present invention will be described in detail with reference to the embodiments shown in the drawings.

1 is a perspective view showing a lawn soil holding block according to an embodiment of the first invention, and FIG. 2 is a cross-sectional view thereof.

This lawn soil maintenance block has a quadrangular frame body 1 made of cutable plastic or the like. In the present example, a block having a quadrangular shape is shown, but the present invention is not limited thereto, but may be molded into a shape such as a hexagonal shape. And the flange 2 is formed in the upper edge of this frame-shaped main body 1. As shown in FIG.

The flange 2 is provided with a plurality of water tanks and holes 3. Moreover, the waterproof sheet 4 is laid in the bottom part of the frame main body 1 in the internal cavity which the frame main body 1 forms as needed.

This waterproof sheet 4 is molded separately from the frame-shaped main body 1 in this example. However, the present invention is not limited thereto, and may be molded integrally with the frame body 1. This waterproof sheet 4 prevents the moisture collected in the inner space of the frame body 1 from penetrating into the cinder concrete when the lawn soil retaining block is placed on the non-waterproof concrete surface, that is, the cinder concrete. It is.

In addition, as shown by the virtual line in FIG. 2, the protrusion 5 may be provided in the flange 2. As shown in FIG. This projection 5 serves as an index indicating that the shape is stacked up to its height.

In addition, as such a protrusion 5, any of a convex side or a point-like protrusion may be sufficient over the entire circumference | surroundings which the flange 2 forms.

FIG. 3 shows a state in which such lawn soil holding blocks are arranged on the concrete surface. In addition, FIG. 4 shows a state in which the soil is piled in the space created by the block group for maintaining the lawn soil, and the grass is planted.

When arranging a plurality of lawn soil maintenance blocks, a space 6 having a metered shape is formed as shown in FIG.

At this time, the flanges 2 of the adjacent lawn soil retaining blocks are abutted to form a drainage passage 7 between the side walls of the frame-shaped body 1.

In this metered shape space 6, as shown in FIG. 4, to the height of the frame-shaped body 1, oxotate (a kind of light brownish swamp soil), mountain sand, pearlite, sponge, Absorbent materials, such as a sponge, are piled up and the porous water holding layer 8 is formed.

Subsequently, the topsoil 9 for lawn growth is piled up on the water holding layer 8, and the grass 10 is implanted in this topsoil 9.

In this way, when the water holding layer 8 and the topsoil 9 are provided, the water necessary for the growth of the grass 10 is retained in the water holding layer 8 and gradually supplied to the grass 10.

Moreover, the water more than the required amount flows to the drainage path 7 through the water tank and the hole 3 provided in the flange 2, and is drained outside. At this time, by adhering the adjacent flanges 2 closely, it is possible to prevent falling of the particles constituting the water holding layer 8 and the topsoil 9 in the drainage passage 7 at the portions where the flanges 2 protrude and contact with each other. . However, in order to reliably prevent these falls, it is good to lay a vinyl net, an asphalt, a sheet of rubber material, etc. on the part which contacted the protruding part, or to caulk the part which adjoins this protruding part.

Since the space surrounded by the frame body 1 is in contact with the surface of the concrete building through the waterproof sheet 4, water does not flow out from the space even if the concrete surface is not waterproofed.

By making the flange 2 of the adjacent frame-shaped body 1 abut, as shown in FIG. 4, the drainage path 7 is formed between the adjacent lawn soil holding blocks. It is not necessary to provide a waterproof sheet or the like tightly in the part of the drainage path 7.

That is, when the concrete surface is not waterproofed, the water in the drainage passage 7 passes through the cinder concrete at its surface portion to reach the internal waterproof layer, but this is discharged to the outside as usual. If the surface of the other concrete is waterproof, it flows along its surface and is sent to a suitable place.

Thus, when the soil for growing the grass 10 is made into two layers of the water holding layer 8 and the topsoil 9, when the drainage path 7 is installed next to it, the water to the grass 10 is surely supplied. In addition, the thickness of the soil can be suppressed.

For example, when the base is formed of three layers consisting of drainage layers, water holding layers, and transplanted soil, the thickness thereof is reduced to 10 to 15 cm by the two-layer structure described above.

As a result, the load on the concrete structure is also reduced. Moreover, since its root grows upward as a characteristic of the grass, the grass 10 can be raised enough by the topsoil 9 in this way.

In addition, since there is a water holding layer even when the sunshine is severe in summer, water supplied to the transplanted grass 10 about once a week can ensure moisture required for the growth of the grass 10.

The soil composed of the water holding layer 8 and the topsoil 9 also acts as a heat insulator for the concrete building. That is, direct heat from the sun is absorbed by these layers and used for evaporation of moisture contained in the water holding layer 8. Therefore, the interior space of the concrete building becomes comfortable.

In addition, when it is difficult to prevent the fall of the particles at the part where the lawn soil holding block is protruded and abuts in the four corners of the frame-shaped body 1 when the blocks for lawn soil maintenance are arranged as shown in FIG. In this case, the four corners of the flange 2 may be appropriately cut and a cross-shaped seam may be applied thereto. As a result, the adjacent lawn soil maintenance blocks can be arranged in a plurality of lawn soil maintenance blocks without being convex in the four corners thereof.

Further, in order to increase the pressure resistance of the soil consisting of the water holding layer 8 and the topsoil 9, a reinforcement having a wall extending in the vertical direction in the metered shape space 6 of the lawn soil holding block may be disposed. .

In this way, for example, a person may walk on the grass 10 because the pressure due to walking or the like can be supported by the reinforcing material. In addition, when the reinforcing material is employed, the water holding layer 8 or the topsoil 9 can be trimmed at the time of soil formation, thereby shortening the soil formation work.

5 shows the specific means for this. That is, as shown in this figure (a), the frame-shaped body 1 arranges the water holding layer holding member 51 in the inner space. In the example of this figure (a), as this water holding layer holding member 51, what formed the board | substrate shape and many cavity part 52 extended in the vertical direction is used.

Such a water-holding layer holding member 51 is made of a material such as cut plastic waste or the like integrally or by fitting several plates vertically and horizontally. As the water holding layer holding member 51, one shown in Figs. 5B and 5C is also used.

The water-holding layer holding member 51 in this drawing (b) is a honeycomb-shaped cavity 52 formed in the vertical direction.

The cavities 52 formed as shown in Figs. (A) and (b) are provided with adjacent vertical walls 53 by drilling holes 54 at appropriate positions of the vertical walls 53 of the water holding layer holding member 51. Can be continued.

The water-holding layer holding member 51 shown in this figure (c) has a plurality of protrusions 56 on the base plate 55 lined up like a forest tree and a continuous cavity 57 between these protrusions 56. It is formed. As the base plate 55, either one plate without holes or a plate punched at appropriate intervals can be used.

FIG. 5 (d) illustrates a state in which the water holding layer holding member 51 is woven into the lawn soil holding block to form the water holding layer and the topsoil. When the plurality of lawn soil retaining blocks are arranged and arranged on the concrete surface, as described with reference to FIG. 4, the flanges 2 of the adjacent lawn soil retaining blocks abut against each other to form a drainage path 7. .

On the other hand, the vertical wall 53 of the water holding layer holding member 51 disposed in the interior space of the lawn soil maintenance block divides its interior space into a plurality of zones. The water-retaining layer 8 made of the absorbent is first filled in the internal space thus divided, and the topsoil 9 is stacked on the water-retaining layer 8. Then, the topsoil 9 is trimmed to stabilize the soil.

In the example of FIG. 5D, the height of the vertical wall 53 is determined so that the vertical wall 53 extends near the surface of the topsoil 9. As a result, even when a person walks on the grass 10 implanted in the topsoil 9, the stepping pressure is dispersed and supported by the vertical wall 53.

Therefore, the stepping pressure is applied directly to the water holding layer so that the soil does not dig. The surplus water contained in the water holding layer 8 flows to the drainage channel 7 through the hole 54 formed in the vertical wall 53. Therefore, a certain amount of water is always stored in the water holding layer 8. At this time, the hole 54 serves as a reference for determining the height of the water holding layer 8, and the upper end of the vertical wall 53 is also used as a reference for determining the height of the topsoil 9.

In addition, the height of the vertical wall 53 is not limited to this, For example, you may adjust to the height of the side wall of frame-shaped main body 1. As shown in FIG. At this time, it is not necessary to provide the hole 54 in the vertical wall 53, the surplus water contained in the water holding layer 8 passes over the upper end of the vertical wall 53 to reach the hole 54, It flows into the drainage path 7.

Alternatively, the water holding layer holding member 51 can be placed on the water holding layer 8 provided in the entire inner space of the frame-shaped body 1. In this case, as shown in FIG. 5 (b), the pressure stepped by the water-holding layer holding member 51 woven in a honeycomb shape is first received, and the pressure stepping through the water-holding layer holding member 51 is Since it is transmitted to the water holding layer 8, an equal force is applied to the whole area of the water holding layer 8, and even if there is some stepping pressure, the collapse of the water holding layer 8 is prevented.

When the lawn soil maintenance block described above is placed on a horizontal concrete surface, the water holding layer 8 formed in the internal space of the lawn soil maintenance block retains water in a uniform distribution and is implanted in the photo 9. Replenish the required water to the grass (10).

However, when arrange | positioning this to the inclined surface, the water contained in the water holding layer 8 flows down, and water holding state will become nonuniform. Therefore, when the lawn soil holding block is disposed on such inclined concrete surface, it is necessary to equalize the water holding state in the water holding layer 8.

6 shows an example in which a water supply member as a means for this is disposed in the inner space of the lawn soil holding block.

As shown in Fig. 6 (a), several beam members 61 are crossed across the opposite sides of the frame-shaped body 1 of the lawn soil maintenance block.

This beam member 61 is made up of a pair of standing walls 62 and 63, as shown in the cross-sectional view of FIG. 6 (b), and has a cavity extending inside thereof in the vertical direction. A water tank and a hole 65 are drilled and installed in one upright wall 62, and the other upright wall 63 has a plate shape without holes.

This prevents the water accumulated in the cavity 64 from flowing down when the block 63 for lawn soil maintenance is disposed so that the wall 63 installed without a hole becomes downward as described below. The water is appropriately supplied to the water holding layer 8 from the bucket and the hole 65.

In this sense, a water tank and a hole 66 having the same function may be provided in the side of the frame-shaped body 1 in a low position.

The upright wall 62 and the upright wall 63 also act as reinforcements for lawn soil, and have sufficient strength to withstand the pressure to be stepped on when walking on them.

6 (a) and 6 (b), the beam member 61 is constituted by an inclined wall 62 and an upright wall 63. It is a matter of course that various other forms are employed.

For example, it is also conceivable that the upright walls 62, 63 are used as vertical walls and the upper end is closed with a cover plate.

Alternatively, the walls 62 and 63 are erected so that the cavity 64 is installed in various places in the inner space of the frame body 1 without placing the beam members 61 on opposite sides of the frame body 1. ) May be arranged.

Fig. 6 (c) shows a state in which lawns are planted by placing several lawn soil retaining blocks in which water supply members are woven together on a roof of an inclined concrete building or the like.

When arranging several lawn soil maintenance blocks, the flange 2 of the adjacent lawn soil maintenance blocks abuts, and the drainage path 7 is formed between the side walls of the frame-shaped body 1 and the fourth. Same as the case described with reference to FIG. 5 and FIG. The absorbent material is piled up to the height of the frame-shaped body 1 in the checkerboard space formed by the frame-shaped body 1 to form a porous water-retaining layer 8.

Subsequently, the grass 10 is implanted into the topsoil 9 for lawn growth on the water holding layer 8. In this way, when the water holding layer 8 and the topsoil 9 are provided, the water necessary for the growth of the grass 10 is held in the water holding layer 8 and gradually supplied to the grass 10.

Moreover, the water more than the required amount flows to the drainage path 7 via the water tank and the hole 3 provided in the flange 2, and is drained outside. However, since the roof 67 is inclined, the water retained in the water holding layer 8 is likely to flow out according to its drop. Therefore, by providing the cavity 64 in the middle of the inclined surface, it is set as the water storage part which prevents the outflowing water and supplies water to the water holding layer 8 located at a gradually lower position.

Therefore, the water supplied does not flow along the inclined surface, and the water necessary for the growth of the grass 10 is retained in the water holding layer 8. Then, when selecting the number of the cavities 64 installed in the interior space of the frame-shaped body 1 according to the size of the lawn soil maintenance block, the water holding layer (8) holding the required amount of water over the entire slope As a result, the growth of the grass 10 is equalized over the entire area of the roof 67.

In this way, the water supply member can be combined with the lawn soil maintenance block to be used instead of the roof tile.

Alternatively, a letter or shape such as the initials of the house is formed on the part of the roof with grass 10, and when the surroundings are colored with color tiles, the color tone and the edges of the grass 10 are contrasted and rich in decorativeness. It becomes a roof.

In this case, it is a matter of course that the grass 10 may be installed around him by making letters or shapes into colors.

7 is a view for explaining a second means for the inclined surface.

The lawn soil maintenance block of the present example also has a quadrangular frame body 71 made of cutable plastic or the like.

And the flange 72 and the flange 73 are formed in the upper edge part and the lower edge part of this frame-shaped main body 71, respectively. In addition, a plurality of water tanks and holes 74 are drilled in the upper flange 72.

The front ends of the upper flange 72 and the lower flange 73 on one side of the frame main body 71 are curved portions 72a and 73a extending upward.

On the other hand, bent portions 72b and 73b extending downward are provided on the upper flange 72 and the lower flange 73 on the side opposite to the sides thereof.

These bends 72a and 73a and bends 72b and 73b are in contact with the bent lawn soil retention blocks of neighboring blocks when a plurality of lawn soil retention blocks are disposed adjacent to each other, and the sidewalls and the upper side of the frame main body 71. The water passage 75 is formed by the flange 72 and the lower flange 73.

In addition, in the part fitted to the side where the flanges 72 and 73 with the bends 72a, 73b, 72a and 73b are provided, a protruding wall extending up to the front end of the flanges 72 and 73 along the wall surface of the frame body 71 is provided. It is preferable to provide 76.

The protruding wall 76 has flanges 72 and 73 abutting the flanges of neighboring blocks when several blocks are placed adjacent to each other, such that the side walls of the frame body 71, the flanges 72 and 73 and The water holding space 77 surrounded by the protruding wall 76 is formed.

The water passage 75 flows out excess water of the water holding layer provided in the inner space of the frame body 71 through the water passage hole 74 as described below.

On the other hand, the water holding space 77 collects and collects excess water in the same manner, and gradually supplies the water holding layer.

Moreover, the waterproof sheet 4 is provided in the bottom of the frame main body 71 by the watertightness of the concrete which comprises a roof.

In addition, the projection 5 shown by the virtual line in FIG. 7 (b) serves as a standard which shows that the soil is piled up to the height like the projection 5 shown in FIG. The protrusion 5 may be either a convex side or a pointed protrusion extending over the entire quadrangular circumference formed by the upper flange 72.

FIG. 7C shows a state in which a plurality of lawn soil maintenance blocks are arranged on the inclined surface of the roof as a substitute for the roof tile, and the soil for lawn growth is stacked.

First, a pedestal 79 for horizontally arranging a block for lawn soil maintenance is installed on the base 78 of the roof in a stepped manner. The length of the pedestal 79 is equal to the length (for example, 30 to 40 cm) of the lawn soil maintenance block placed on it.

If the pedestal 79 is not waterproofed, a lawn soil holding block having a frame-shaped body 71 provided with a lower flange 73 is used, and a waterproof sheet 4 is placed in its inner space.

Alternatively, one or more waterproof sheets may be laid over the entire area of the roof foundation 78.

When arranging the lawn soil retaining blocks on these pedestals 79 in a staircase manner, the bends 72a, 72b, 73a, and 73b of adjacent lawn soil retaining blocks abut the water path ( 75) is formed.

On the other hand, in FIG. 7C, along the direction perpendicular to the ground, a water holding space 77 is formed between adjacent lawn soil holding blocks.

The absorbent material is piled up to the height of the frame-shaped body 71 in the inner space of the lawn soil maintenance block arranged in this way, and a porous water-retaining layer 8 is formed.

Subsequently, the topsoil 9 is piled up on this water holding layer 8, and the grass 10 is implanted in this topsoil 9.

In this way, when installing the water holding layer 8 and the topsoil 9, the water necessary for the growth of the grass 10 is held in the water holding layer 8 and gradually supplied to the grass 10.

Preservation of water may be performed by natural water such as rainfall or the like, or by water supply using a sprinkler or the like disposed at a suitable place.

At this time, a part of the water more than the required amount overflows from the water holding layer 8 and flows into the water path 75 through the water tank and the hole 74 provided in the upper flange 72. This water is discharged to the outside through drain pipes installed at appropriate places. Alternatively, the lawn soil retaining block may be flowed down into a short waterfall shape so as to be discharged to the outside from the lowest lawn soil retaining block. That is, by using the water path 75 as a bank, it is possible to hold water uniformly with respect to the soil distributed throughout the roof.

The remaining surplus water flows through the water tank and the hole 74 to the water holding space 77 and is stored there. The water in the water holding space 77 is automatically supplied to the water holding layer 8 according to the dry state of the water holding layer 8 and keeps the water holding layer 8 wet at all times.

Thus, the soil for growing the grass 10 is made up of two layers of the water holding layer 8 and the topsoil 9, and the water passage 75 and the water holding space 77 as necessary around the lawn soil holding block. At the time of installation, the supply of water to the grass 10 on the inclined surface is surely performed.

The work for him is also simpler than the conventional tile work.

Also, as shown in Fig. 7 (c), when the soil for growing lawns is stacked on a step, the soil becomes uniform according to the growth of the grass 10, so that the surface is not convex but parallel to the slope of the roof. do.

It is also possible to use a lawn soil block provided with a water hole and a hole formed in the side wall of the frame body.

8 (a) shows a lawn soil maintenance block.

Compared to the frame-shaped main body 81 in the lawn soil maintenance block of the present embodiment and the lawn soil maintenance block in FIG. 1, a high sidewall 82 is provided, and at the upper end of the sidewall 82 in the horizontal direction. The flange 83 which protrudes is formed. A plurality of water passages 84 are formed in a straight line at a constant height position of the side wall 82. The inner space of the frame-shaped body 81 below the water bottle passage hole 84 holds the soil forming the water holding layer.

On the other hand, the topsoil is maintained in the inner space above the water tank 84.

That is, this lawn soil maintenance block is handled in a state in which a grass-bearing layer and a topsoil are piled up inside the frame-shaped body 81 and the grass is transplanted therein.

Since the soil formation and the grass transplantation can be carried out at the factory, the grass transplantation work in the field is quick.

For example, in the field, it is only necessary to arrange a lawn soil maintenance block having grass grown in a factory in an internal space on a concrete surface or the like.

8 (b) shows a state in which the lawn soil maintenance block is arranged on the concrete surface.

In a factory, the height of the water holding layer 8 is aimed at the position of the water passage hole 84 formed in the side wall 82 when the water holding layer 8 is penetrated inside the frame-shaped body 81. Adjustment is easily performed.

That is, the water holding layer 8 may be formed to such an extent that the water bottle passage hole 84 is slightly covered. Also in this case, when the concrete surface is not waterproofed, the waterproof sheet 4 may be provided at the bottom of the inner space of the frame-shaped main body 81.

Alternatively, water leakage on the concrete surface can be prevented by the bottom plate formed integrally with the frame-shaped body 81 in place of the waterproof sheet 4.

The frame-shaped main body 81 incorporating such a base plate is convenient for forming soil for grass growth regardless of the kind of concrete surface.

Subsequently, the topsoil 9 is piled up on this water holding layer 8. The grass 10 is implanted in the topsoil 9 and the frame body 81 is transported to the construction site when the grass 100 grows to a predetermined size. At the construction site, the concrete for the frame body 81 is targeted. The transplantation of the grass 10 is completed only by arranging it on the surface of the grass 10. At the end of the work, there is no grass 10 at the boundary of the adjacent frame-shaped body 81.

However, this part is covered in a short period of time as the grass 10 grows, so that the grass 10 is in a continuous state. In addition, when dislike of the discontinuity of the grass 10 in this boundary line, it is good to pile up some topsoil in the part, and to add the grass 10 to it.

Since the addition of the grass 10 is auxiliary, it does not require such a long time work.

8 (b) shows a state in which the grass 10 is transplanted in this way.

In the lawn soil maintenance block arranged on the concrete surface, the flange 83 at the upper end of the side wall 82 is where the topsoil 9 is shallow from the surface.

In addition, the flange 83 has a greater strength than that of the soil because the entire frame body 81 is stabilized by turf soil and supported by vertical side walls 82 thereon.

Such a flange 83 part arrange | positions the frame-shaped main body 81 regularly on the concrete surface, for example, becomes a board | substrate shape.

Therefore, when the pedestrian walks along the flange 83, the soil is collapsed by the stepping pressure.

Moreover, in order to reliably prevent the fall of the topsoil 9 from the part which protrudes and abuts the flange 83 of the adjacent frame-shaped main body 81, the sheet | seat of a vinyl net, asphalt, or rubber | gum material, etc. is laid in the part which contacted the protruding part. Or caulk the protruding parts.

In this regard, in the lawn soil retaining block of the present embodiment, the topsoil 9 above the flange 83 is small, so that the topsoil 9 falls as in the case of the lawn soil retaining block of FIG. There is no need to worry.

A drainage passage 7 as described in FIG. 4 is formed at the lower side where the flange 83 protrudes and abuts, and excess water is discharged to the outside through the water passage 84 and the drainage passage 7.

9 is a cross-shaped rib 91 formed inside the frame-shaped main body 81 based on the lawn soil maintenance block. The rib 91 substantially coincides with the height of the water tank through hole 84 for the purpose of forming the water holding layer 8.

A second water bottle passage hole 93 is formed in front of the rib 91 so that the water flowing from the water holding layer 8 flows into the internal highway 92.

In this case, water retaining layers 8 are formed in four inner spaces divided by cross-shaped ribs 91, respectively. And the topsoil 9 accumulates on this water holding layer 8.

The surplus water flowing into the cavity 92 through the second reservoir passage hole 93 in the water holding layer 8 is opened to the drain passage 7 of the cavity 92 so as to flow through the drain passage 7 and the passage passage hole ( It is discharged to the outside like water via 84).

In this lawn soil maintenance block, the internal space of the frame-shaped main body 81 is divided by the rib 91. Therefore, the stepping pressure applied to the topsoil 9 accumulated thereon is not supported by the ribs 91 and transmitted to the water holding layer 8. As a result, the soil part withstands the stepping pressure increases. The rib 91 also serves as a reinforcing material for improving the strength of the mold main body 81 itself.

As the rib 91, it is a matter of course that a plurality of ribs arranged in parallel or in a well sperm shape can be used without being limited to the cross shape shown in FIG.

In the block for maintaining the lawn soil shown in FIGS. 8 and 9, in order to increase the pressure resistance of the entire soil including the water holding layer 8 and the topsoil 9, a fifth portion is formed in the inner space of the frame body 81. It is also possible to arrange the reinforcement as shown in the figure. This reinforcing material may be directly mounted on the base plate integrally molded with the frame-shaped body 81.

For example, the base plate 55 shown in FIG. 5C is integrally molded with the frame-shaped main body 81.

The above has described the case of using a frame-type lawn soil maintenance block.

However, it is also possible to use ordinary lawn soil maintenance blocks, not just the frame-shaped lawn soil maintenance blocks.

That is, the third lawn soil maintenance block has a tubular body as shown in FIG. The cylindrical main body 101 is made of waste plastic or the like which can be cut like the frame main body 1.

In Fig. 10 (a), the cylindrical main body 101 is molded without a bottom wall in the example, but may be molded into a bottomed cylindrical shape without being limited thereto. In the center part of this cylindrical main body 101, the cavity used as the drainage path 102 is provided. In addition, a plurality of water tanks and holes 9103 are formed in the upper surface of the cylindrical body 101.

Moreover, when the flange 104 is provided in the lower part of the cylindrical main body 101, stability when the cylindrical main body 101 is mounted on the concrete surface will improve.

FIG. 10 (b) shows a state in which a plurality of lawn soil maintenance blocks having the tubular body 101 are arranged on the concrete surface and arranged, and this figure (c) shows a space created by his lawn soil maintenance block group. It shows the state where the soil is piled and the grass is planted.

In FIG. 10 (b), the lawn soil retaining blocks are arranged in a vertical direction and a horizontal direction.

In this example, the cross-section joint 105 is wrapped where the unit length of the block is equal to the length of the side being measured and the four blocks abut. 102 is formed.

In addition, the sand and the like are prevented from flowing into the drainage passage 102 at the portion of the adjacent block that comes into contact with the protruding portion.

The water absorbing layer 8 is formed by stacking the absorbent material as shown in FIG. 10 (c) up to the height of the cylindrical main body 101 in a plurality of checkerboard spaces thus produced. Subsequently, the topsoil 9 for lawn growth is piled up on this water holding layer 8, and the grass is transplanted to this topsoil 9.

In this way, when the water holding layer 8 and the topsoil 9 are installed, the water necessary for the growth of the grass 10 is held in the water holding layer 8 and gradually supplied to the grass 10.

Moreover, the water more than the required amount flows through the water flow passage 102 through the water tank through hole 103 provided on the upper surface of the cylindrical body 101, and is discharged to the outside.

In addition, the projection 106 shown by an imaginary line in FIG. 10 (c) is provided as needed in the upper surface of the cylindrical main body 101 as plate shape or point shape.

This protrusion 106 serves as an index when stacking the topsoil 9 to a required height.

In this example, the blocks are measured and used in the same unit length, specifically, a block having a length of 20 to 30 cm.

By using the block of length in this way, it is easy to adjust the width | variety of a soil holding part according to the width | variety of the place which is going to plant grass.

However, the unit length of the block is not limited to this, and one having a length corresponding to several pieces may be used.

In this way, when the length of the block is long, the number of members to be used is easy to work.

Instead of arranging the blocks in a checkerboard shape, a method of arranging blocks having long sides in only one direction can be adopted.

How to arrange the lawn soil maintenance block is appropriately selected in consideration of the area of the roof of the concrete building, the inclined state, etc., which is the installed place.

It is also possible to change the joint 105 for connecting the blocks to other connecting means.

In the example shown in FIG. 10, it was demonstrated that the lawn soil was made with respect to the concrete structure where the surface layer part was waterproofed.

However, not only this but also the concrete structure which is not waterproofed can use the lawn soil maintenance block which has this cylindrical body 101.

In this case, a watertight sheet which does not permeate water is disposed between the water holding layer 8 and the surface of the concrete structure to prevent water from penetrating into the concrete structure in the water holding layer 8. do.

Moreover, in order to raise the pressure-resistance strength of the soil which consists of the water holding layer 8 and the topsoil 9, you may arrange | position the reinforcement extended in a vertical direction to the board-shaped space which is made of the lawn soil maintenance block.

Such reinforcing materials include the water holding layer holding member described with reference to FIG. 5, the water supply member described with reference to FIG.

In this way, a significant pressure can be supported by the reinforcement, so that a person can walk on, for example, the grass 10 implanted in the topsoil 9.

Moreover, the water holding layer 8 and the topsoil 9 can be refined | selected at the time of formation of a perforation, and a soil formation work and its stabilization can be performed in a short time.

As described above, in the lawn soil maintenance block of the present invention, the grass transplantation base is formed of two layers of a water holding layer and a topsoil, and drainage channels are arranged at appropriate intervals in the water holding layer.

Because of this, the thickness of the foundation can be reduced to reduce the load on the concrete building.

In addition, the soil can also serve as a heat insulator for the concrete building, making the interior space of the concrete building comfortable.

In addition, by using an appropriate auxiliary member or by improving the shape of the frame body, it is possible to secure the water necessary for the grass grown on the inclined concrete surface thereon.

Furthermore, by arranging the reinforcement in the soil, it is also possible for a person to walk on the grass.

Thus, according to the present invention, natural grass is laid on the surface of the concrete, which has been decorated with artificial turf so far, and the beautification of the city is greatly promoted.

Claims (13)

Flange (2, 72) protruding laterally in the horizontal direction is formed on the top of the polygonal frame-shaped body (1, 71), a plurality of water through holes (3, 74) are installed in this flange Lawn block for soil maintenance. The lawn soil retaining block according to claim 1, wherein the waterproof sheet (4) is provided in the lower part of the inner space partitioned by the frame-shaped bodies (1, 71). The water holding layer holding member (51) according to claim 1, further comprising a vertical wall (53) forming a plurality of vertically extending cavities (52, 57) in an interior space defined by the frame body (1). Lawn soil maintenance block, characterized in that arranged. 2. The structure according to claim 1, further comprising a pair of upright walls (62, 63) for forming a cavity (64) extending vertically in an interior space defined by the frame-shaped body (1). Lawn soil maintenance block, characterized in that the water supply member in the form of a hole without a hole in the wall (62) is installed in the wall (62) through a hole and a hole. The flange (72, 73) protruding laterally on at least an upper part of one side of the frame-shaped main body (71), and the front end part of this flange is used as the bend part (72a, 73a) which extends upwards, The said 1 The lawn, characterized in that a second flange (72, 73) protruding laterally on at least the upper side of the side facing the side, and the front end portion of the second flange to be bent portion (72b, 73b) extending downward Blocks for soil maintenance. A flange 83 without holes is formed to protrude laterally in the horizontal direction on the upper part of the polygonal frame-shaped body 81, and several water through holes 84 are formed at a constant height in the side wall 82 below the flange. Lawn soil maintenance block, characterized in that installed through. The lawn soil according to claim 6, wherein a waterproof sheet (4) or a base plate (55) integrally formed with the frame body (81) is installed at a lower portion of the inner space partitioned by the frame body (81). Retention block. 7. The water holding layer holding member (51) according to claim 6, wherein the water retaining layer holding member (51) having a vertical wall (53) forming a plurality of vertically extending cavities (92) is arranged in an interior space defined by the frame body (81). Lawn soil maintenance block, characterized in that. The method of claim 8, Lawn soil retaining block, characterized in that the water holding layer holding member 51 is formed integrally with the base plate (55) according to claim 7. The upper surface of the frame-shaped body 101 having a cavity that becomes the drainage passage 102 in the center is formed by forming a water passage hole 103 through which water in the water holding layer 8 passes. Lawn soil maintenance block, characterized in that the interior partitioned by several as a lawn soil maintenance space. The method of claim 10, Lawn soil maintenance block, characterized in that the waterproof sheet (4) is provided in the lower portion of the inner space partitioned by the cylindrical body 101. The method of claim 10, A water holding layer holding member (51) having a vertical wall (53) forming a plurality of vertically extending cavities (52, 57) in an interior space partitioned by a cylindrical body (101) is disposed. Lawn block for soil maintenance. The method of claim 10, A pair of upright walls 62, 63 forming a cavity 64 extending in the vertical direction in the inner space partitioned by the tubular body 101, and a bucket on one upright wall 62 A block for maintaining a lawn soil, characterized in that a hole (65) is installed, and a water supply member having a plate shape without a hole is arranged on the other wall (63).

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