JP2002332650A - Block and execution method for retaining wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable easy and reliable vegetation for a retaining wall, and easy execution of work for the retaining wall excellent in natural landscape. SOLUTION: A block 10 for the retaining wall is provided with an external wall part 12, which constitutes an outer surface of the retaining wall, and a protrusion which is extended to rearward of the wall part 12. In the block 10, a vegetation hole 14 is provided in a part of an outer rim of the wall part 12 in such a shape as to notch an edge of the wall part 12. In an execution method for the retaining wall, the blocks 10 are piled up, and concrete is placed on a backside of the block 10 so as to form the retaining wall. Characteristically, the concrete is placed on the backside of the block 10 in order to construct the retaining wall, after the vegetation hole 14 of the block 10 is stuffed with a ball 18 for vegetation, which is composed of soil, etc., so as to be closed with a vegetation material, when the blocks 10 are piled up.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a retaining wall block and a method of constructing a retaining wall using the retaining wall block.

[0002]

2. Description of the Related Art Conventionally, a construction method of constructing a retaining wall using a machin block has been widely performed. FIG.
An example in which a retaining wall is constructed using 0a is shown. The clap block has a rectangular outer wall that is the outer surface of the retaining wall.
The rear side is formed in a protruding shape so as to bite into the ground.
The retaining wall is formed by combining the blocks in a zigzag manner as shown in the figure (called valley stacking). By combining the sling blocks with each other and placing and fixing concrete on the rear side of the sling blocks, the wall surface can be firmly held. The retaining wall formed by combining the sling blocks is held by the action of combining the sling blocks to integrate the entire wall surface and the action of holding down the ground by the weight of the sling blocks.

[0003]

[0006] Meanwhile, the sliding block is provided by filling a mold with concrete and forming it into a predetermined shape. Therefore, the appearance of the retaining wall constructed using such a concrete block is grayish white by concrete. In recent years, it has become increasingly important to protect the natural environment as much as possible in road construction and revetment construction, etc. It is a problem that the landscape becomes artificial.

[0004] For this reason, with regard to concrete block products used in road construction, seawall construction and the like, the surface of the block is formed into an uneven surface so that a natural finish is obtained by the uneven pattern so as to obtain a more natural scenery. And exposing natural stones. Others have been designed to allow vegetation such as turf to provide a more natural landscape. However, in the case of a conventional concrete block product capable of applying vegetation, it is not easy to manufacture the block, or the work of laying the concrete block and the vegetation work are separate operations, so the work is not efficient. There was a problem.

The present invention has been made to solve these problems, and an object of the present invention is to provide a retaining wall block which can be easily vegetated and is easily manufactured. It is an object of the present invention to provide a method for constructing a retaining wall that can efficiently construct a retaining wall using blocks.

[0006]

To achieve the above object, the present invention has the following arrangement. That is, in a retaining wall block including an outer wall portion that forms the outer surface of the retaining wall, and a protrusion that extends rearward of the outer wall portion, an outer peripheral portion of the outer wall portion includes an edge portion of the outer wall portion. A vegetation hole is provided in a shape with a notch. The vegetation hole can be filled with vegetation material such as soil. By using the retaining wall block with the vegetation hole to construct the retaining wall, plants can grow from the vegetation hole and maintain a natural landscape. It can be a wall. In addition, by providing the vegetation hole by penetrating the outer wall portion in the thickness direction, a certain volume can be secured, which is suitable for plant rooting. However, the present invention is not necessarily limited to the case where the vegetation hole is penetrated.

[0007] According to the retaining wall block, the outer wall portion is formed in a rectangular shape in a front view, and the vegetation hole is provided by notching a short side edge portion on one short side of the outer wall portion. A suitable retaining wall can be constructed by valley stacking. At the time of construction, the valleys should be piled such that the short side with the vegetation hole is at the upper position. In addition, as the retaining wall block, a block in which the outer wall portion is formed in a rectangular front shape and the vegetation hole is provided in one or more of four sides of the outer wall portion can also be suitably used. . In addition, since the vegetation hole is formed to have a wide width toward the back surface side of the outer wall portion, soil and vegetation balls do not fall out of the vegetation hole and can be suitably used.

An outer wall portion constituting an outer surface of the retaining wall and a projection extending rearward of the outer wall portion are provided, and an edge portion of the outer wall portion is cut off at a part of an outer peripheral edge of the outer wall portion. In the construction method of the retaining wall in which a retaining wall block in which vegetation holes are provided in a bent shape and concrete is cast on the back side of the retaining wall block to form a retaining wall, when the retaining wall block is stacked, Then, after filling the vegetation holes with vegetation balls made of soil or the like and closing the vegetation holes of the retaining wall block with vegetation material, casting concrete on the back surface of the retaining wall block to construct the retaining wall. It is characterized by. Also, by using a vegetation ball such as soil mixed with vegetation seeds and keeping the shape in a predetermined shape as the vegetation ball, the construction of the retaining wall can be facilitated and the vegetation can be easily vegetated. it can.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 (a),
(b), (c), and (d) are a front view, a right side view, a rear view, and a cross-sectional view taken along line AA, respectively, showing the configuration of one embodiment of a retaining wall block. As shown in FIG. 1A, in a retaining wall block 10 of the present embodiment, a front shape of an outer wall portion 12 which is a portion exposed to an outer surface of the retaining wall is formed in a rectangular shape.
2 is characterized in that a semicircular vegetation hole 14 is formed at a substantially central position along an edge of one short side portion. The vegetation hole 14 is provided for growing a plant, and in the present embodiment, the short side portion of the outer wall portion 12 is approximately 1
It is formed in a notched size of about / 3.

As shown in FIG. 1B, a retaining wall block 1 is provided.
The outer wall 12 has a substantially flat surface and a predetermined thickness, and a projection 16 extends rearward from the rear of the outer wall 12. The protrusion 16 is the outer wall 1
2 is gradually narrowed from the rear surface and protruded rearward, and the end of the projection 16 is slightly wider. As shown in FIG. 1D, the vegetation hole 14 is provided so as to penetrate one short side in the longitudinal direction of the outer wall portion 12 in the thickness direction. Also, as shown in FIG. 1B, the vegetation hole 14 is formed so that the diameter on the rear surface is larger than the diameter on the front surface of the outer wall portion 12.
As shown in (d), the bottom surface is formed as a tapered surface having a lower rear surface side. Block 10 for retaining wall of embodiment
Then, the diameter of the vegetation hole 14 in front of the outer wall portion 12 is set to about 1
0 cm, and the diameter at the rear surface was about 12 cm. Outer wall 1
The reason why the vegetation hole 14 is provided in the short side portion in the longitudinal direction of 2 is that the short side portion of the outer wall portion 12 penetrates the vegetation hole 14 without being hindered by the arrangement of the projections 16 as compared with the long side portion. This is because they are easily formed.

As described above, when the retaining wall is formed by combining the intellectual blocks, the holding effect is achieved by combining the intellectual blocks with the retaining wall, and the ground is held down by the weight of the intellectual block. It is due to the action. Therefore, when the vegetation hole 14 is formed by partially cutting out the outer wall portion 12 of the retaining wall block 10 as in the present embodiment, the weight of the retaining wall block is reduced. It must be designed to have a size that can sufficiently secure the holding force due to. In the case of the retaining wall block 10 of the present embodiment, when the vegetation holes 14 having a size as shown in FIG. 1 are formed, a sufficient retaining force as a retaining wall can be secured.

In the retaining wall block 10 shown in FIG. 1, a concrete of slump 0 is filled in a mold, molded into a predetermined shape, and then the mold is removed, cured for a certain period of time, and the concrete is hardened to obtain a product. Formwork is outer wall part 12, vegetation hole 14,
In order to form the projections 16 and the like, they are formed in a predetermined shape in advance. By filling the form with concrete, the retaining wall block shown in FIG. 1 can be obtained. By using the concrete of Slump 0, after molding the concrete, the molded body can be immediately taken out of the mold and cured. Of course, after the concrete is solidified in the mold, the mold can be removed from the molded product to obtain a product.

FIGS. 2 and 3 show the retaining wall block 10 described above.
The method of constructing the retaining wall using is shown. Block 1 for retaining wall
The method of constructing the retaining wall using 0 is based on the method of stacking the retaining wall blocks 10 by valley stacking in the same manner as the method shown in FIG. FIG. 2 shows a state in which the stacking of the retaining wall blocks 10 is started, and FIG. 3 shows a state in which the stacking of the retaining wall blocks 10 is completed. As shown in FIG. 3, when the retaining wall is constructed using the retaining wall block 10 according to the present invention, the retaining wall is so arranged that the vegetation holes 14 of the individual retaining wall blocks 10 are always at an obliquely upper position. Blocks 10 are combined and stacked. When the retaining wall block 10 is combined, the retaining wall block 10 is disposed obliquely with respect to the ground, so that one short side of the outer wall portion 12 of the retaining wall block 10 is obliquely upward and the other short side. The side is obliquely below. To install the vegetation hole 14 at the upper position means to arrange the vegetation hole 14 such that the short side of the two short sides that forms the vegetation hole 14 is at the upper side.

When the retaining wall is constructed using the retaining wall block 10, as shown in FIG. 2, the retaining wall blocks 10 are fixed by concrete while being sequentially stacked from the bottom. In practice, when the retaining wall blocks 10 are stacked in one step, concrete is cast on the back side of the retaining wall blocks 10, and after fixing the retaining wall blocks 10, the next step is piled up. FIG. 2 shows a state in which the retaining wall blocks 10 are stacked in one stage and the second retaining wall blocks 10 are stacked thereon. Concrete is in this state, retaining block 1
First, the first-stage retaining wall block is fixed. The concrete pouring height is about the position indicated by the dotted line in the figure.

Here, the retaining wall block 10 of the present embodiment is used.
Is used, the vegetation holes 14 are formed in the retaining wall block 10, so that when the retaining wall block 10 is combined and concrete is poured, it is located below the concrete placement height. There is a problem that concrete enters the vegetation hole 14. Since the vegetation holes 14 are for filling soil for vegetation such as turf, it is necessary to prevent the concrete from entering the vegetation holes 14 when the concrete is poured.

As a method of preventing concrete from entering the vegetation holes 14 when the concrete is poured, a method of filling concrete in the vegetation holes 14 and removing the filling after the concrete has hardened is used for vegetation. It is possible to pack the soil. By using the retaining wall block of the present embodiment, it is possible to favorably grow vegetation by filling the vegetation holes with soil. However, the method of filling the vegetation holes with soil after construction and enabling vegetation is not efficient as construction work.

In the method for constructing a retaining wall according to the present invention, when laying the retaining wall blocks 10 in a valley, the retaining wall blocks 10 are formed into a ball shape or a bundle shape that is previously adjusted to the shape of the vegetation hole 14 using soil, plant fiber or the like. The vegetation balls that have been packed into the vegetation holes 14,
It is characterized in that the construction is performed so that concrete does not flow into the vegetation holes 14 by the vegetation balls. When the retaining wall blocks 10 are stacked, the vegetation balls are placed on the vegetation holes 14 of the lower retaining wall block, and the vegetation balls are crushed by stacking the upper retaining wall blocks 10, and the vegetation holes 14 are vegetated. It is possible to prevent the concrete from flowing into the vegetation hole 14 and the concrete from flowing out from the vegetation hole 14 by being plugged with the ball.

The vegetation ball is prepared by mixing a fertilizer or the like in advance for vegetation such as grass. That is,
Vegetation balls are used as vegetation materials such as soil, straw, plant fiber,
It is formed by using paper, wood chips, or the like as a base material, and adding a soil improving material as needed. The shape is adjusted according to the shape of the vegetation hole 14. Vegetation balls can be easily germinated by adding fertilizers as needed and mixing seeds such as turf. FIG. 4 is an example of forming the vegetation ball 18. FIG. 4 (a) shows a semi-circular end face formed according to the shape of the vegetation hole 14.
FIG. 4B shows an elliptical shape, and FIG. 4C shows a bundle shape using straw.

As described above, in the retaining wall block 10 of the embodiment, the vegetation holes 14 are formed such that the back side of the outer wall portion 12 is wider than the front side, so that the vegetation balls 18 are previously placed on one side. It may be formed in a slightly widened shape. Further, when the retaining wall block 10 is stacked, the vegetation balls 18 filled in the vegetation holes 14 are crushed by the weight of the retaining wall blocks 10, so that the vegetation balls 18 are formed slightly larger than the vegetation holes 14. Vegetation holes 14 when crushed
May be filled. Vegetation ball 1
Numeral 8 aims to fill the vegetation hole 14 so that concrete does not enter the vegetation hole 14 and to ensure that the vegetation grows from the vegetation hole 14. To ensure that the vegetation holes 14 are filled. Therefore, it is also possible to cover the outer periphery of the vegetation ball 18 with a straw or the like so that the shape can be maintained. The reason why the vegetation hole 14 is formed so as to be slightly wider toward the back surface side of the outer wall portion 12 in the retaining wall block 10 of the present embodiment is that the vegetation ball 18 installed in the vegetation hole 14 is on the front side. There is also a meaning to make it hard to fall out.

According to the retaining wall construction method of the present invention, when the retaining wall blocks 10 are piled up, the retaining wall blocks 10 are piled up while the vegetation holes 18 are filled with the vegetation balls 18. The vegetation hole 14 is closed by the vegetation ball 18, and concrete does not enter the vegetation hole 14 even if concrete is poured on the back side of the retaining wall block 10. The vegetation ball 18 packed in the vegetation hole 14 does not need to be removed after construction, and can be used as it is for vegetation. In addition, when the retaining wall blocks 10 are stacked, the vegetation holes 18 may be filled with the vegetation balls 18, so that the operation is easy.

FIG. 3 shows a vegetation ball 1 as described above.
In this state, the retaining wall blocks 10 are piled up in a valley using 8 to construct the retaining wall. Each vegetation hole 14 is filled with vegetation balls 18 at the time of construction. FIG. 5 shows a state where the turf has grown from the vegetation hole 14. Vegetation ball 1 in advance
According to the method in which the seeds are mixed with turf seeds 8, the turf grows to about 10 cm in about two months after the construction. When the plants extend from the vegetation hole 14, green is scattered on the retaining wall, the appearance of the gray-white retaining wall is softened, and a landscape closer to a natural landscape can be obtained.

FIG. 6 shows a retaining wall block 1 of the above embodiment.
0 is an example in which the plant is growing from a vegetation hole of the retaining wall block 10. When the retaining wall block 10 according to the present invention is used for such revetment, underwater vegetation holes are used as fish nests,
The portion above the water surface is used for the growth of plants, and in the soil, it has various effects such as being used for the growth of microorganisms.

In the retaining wall constructed as described above, the rainwater flowing on the retaining wall is transmitted to the joints and naturally flows into the vegetation holes 14 and is retained by the vegetation balls 18 so that rooting is suitably performed. In particular, the retaining wall block 10 of the above embodiment
Since the bottom of the vegetation hole 14 is formed as a tapered surface,
When the retaining wall blocks 10 are piled up in the above-described manner, the bottom surface of the vegetation hole 14 is inclined downward, so that the water retained in the vegetation hole 14 does not flow from the vegetation hole 14 to the front side of the outer wall portion 12. There is an advantage that water is reliably retained in the vegetation hole 14. In addition, various plants can be planted in the vegetation hole 14 according to the installation location, and the plants grow naturally, so that a landscape closer to nature is completed.

In the above retaining wall, the rainwater flowing on the retaining wall travels along the joints and flows naturally into the vegetation holes 14, where the water is retained by the vegetation balls 18, so that the rooting is suitably performed. In particular, in the retaining wall block 10 of the above embodiment, the bottom surface of the vegetation hole 14 is formed as a tapered surface.
When the valleys 0 are piled up in the above-described manner, the bottom of the vegetation hole 14 is inclined downward, and the water retained in the vegetation hole 14 does not flow out from the vegetation hole 14 to the front side of the outer wall portion 12, and the vegetation hole 14 There is an advantage that water is reliably retained. Also,
Various plants can be planted in the vegetation hole 14 according to the installation location, and the plants grow naturally, so that a landscape closer to nature is completed.

In the above-described embodiment, the outer wall 12 is formed in a rectangular shape in front view as a retaining wall block, and the vegetation hole 14 is provided on one short side of the outer wall 12.
The shape of the retaining wall block 10 is not limited to the above embodiment. FIG. 7 shows another embodiment of the retaining wall block 10. In the figures, the outer wall 1 of the retaining wall block 10 is shown.
2 is a state viewed from the front. FIG. 7A shows an example in which vegetation holes 14 are provided on each of two short sides of the outer wall portion 12.
FIG. 7B shows an example in which a rectangular vegetation hole 14 is provided in front view, and FIG. 7C shows an example in which the vegetation hole 14 is provided on the long side of the outer wall 12. As described above, the vegetation hole 14 can be formed in various cutout shapes in addition to being formed in a semicircular cutout shape. Further, it may be provided not only on the short side of the outer wall portion 12, but also on the long side.

FIG. 7 (d) shows an example in which two vegetation holes 14 are provided on the long side of the outer wall portion 12, and FIG. 7 (e) shows vegetation holes 14 provided on the short side and the long side of the outer wall portion 12, respectively. FIG. 7 (f) shows an example in which vegetation holes 14 are provided on each side of the outer wall portion 12. Vegetation holes 14 of different shapes are provided in a mixed manner. FIG. 7 (g) shows vegetation holes 1 at the corners of the outer wall 12 having a rectangular front shape.
4 is provided. In this embodiment, the vegetation holes 14 are provided at the corners at one diagonal position, but the vegetation holes 14 may be provided at only one corner. Fig. 7 (g)
Is an example in which vegetation holes 14 are provided at corners and long sides of the outer wall portion 12.

FIG. 7 (i) shows an example in which a vegetation hole 14 is provided on each of opposing sides of a retaining wall block 10 in which the outer wall portion 12 has a square front shape. FIG. 7 (j) shows an example in which vegetation holes 14 are provided in the odd-shaped retaining wall block.
As described above, the retaining wall block 10 according to the present invention is not limited to products in which the front shape of the outer wall portion 12 is rectangular, and can be similarly applied to odd-shaped retaining wall blocks.

FIG. 8 shows another example in which a retaining wall is constructed using the retaining wall block 10. The retaining wall shown in FIG. 8 is constructed as a retaining wall block 10 by arranging blocks having vegetation holes 14, 14 on each of the long sides of an outer wall portion having a rectangular front shape. In the same manner as the above-described construction method, the retaining wall blocks 10 are sequentially stacked from the bottom, the vegetation holes 14 are filled with vegetation balls 18, and concrete is cast on the back side of the retaining wall blocks 10 to construct the construction. is there. Thus, the retaining wall of an appropriate form can be constructed using the retaining wall block 10 of various forms.

[0029]

According to the retaining wall block of the present invention,
As described above, by providing vegetation holes for filling the vegetation material on the outer wall portion, plants can be suitably grown from the vegetation holes, and it is possible to easily construct a retaining wall in a form that does not impair the natural landscape as much as possible. it can. In addition, since the configuration is simple, there is an advantage that the production of the retaining wall block is easy and the production cost is not required. According to the retaining wall construction method of the present invention, the vegetation holes are closed by the vegetation material by arranging the vegetation balls in the vegetation holes when stacking the retaining wall blocks, and the back surface of the retaining wall block. Concrete can be constructed without flowing out to the front side of the retaining wall, and the retaining wall can be constructed in a state where the vegetation hole is filled with vegetation material, and the retaining wall can be constructed efficiently. In addition, on the retaining wall constructed by stacking retaining wall blocks, rainwater flows down the joints, and rainwater is naturally supplied to the vegetation holes, so that it is possible to grow plants appropriately. Play.

[Brief description of the drawings]

FIG. 1 is a front view, a right side view, a rear view, and a cross-sectional view showing a configuration of a retaining wall block according to the present invention.

FIG. 2 is an explanatory view showing a construction state of a retaining wall.

FIG. 3 is an explanatory view of a state where a retaining wall is constructed.

FIG. 4 is an explanatory view showing an example of a vegetation ball.

FIG. 5 is an explanatory diagram showing a state where turf has grown from a vegetation hole.

FIG. 6 is an explanatory view showing an example in which the retaining wall block according to the present invention is used for revetment work.

FIG. 7 is a front view showing another embodiment of the retaining wall block.

FIG. 8 is an explanatory view showing another example of construction of a retaining wall.

FIG. 9 is an explanatory view showing a state in which a retaining wall is constructed using a known block.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Retaining wall block 10a Knowledge block 12 Outer wall part 14 Vegetation hole 16 Projection part 18 Vegetation ball

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akihiko Shinohara 4047 Kaise Akaya, Sakucho, Minamisaku-gun, Nagano Prefecture Inside Karuizawa Concrete Co., Ltd. 4047 No. Karuizawa Concrete Co., Ltd. (72) The inventor Nakagawa Nakagawa 94-1 Ozawa Nozawa, Saku-shi, Nagano F-term in Okusa Matex Co., Ltd.

Claims (7)

[Claims] 1. A retaining wall block comprising: an outer wall portion forming an outer surface of a retaining wall; and a projection extending rearward of the outer wall portion, wherein a part of an outer peripheral edge of the outer wall portion includes an outer wall portion. A vegetation hole is provided in a shape in which an edge of the vegetation is cut off, and a retaining wall block is provided. 2. The retaining wall block according to claim 1, wherein the vegetation hole is provided so as to penetrate the outer wall portion in a thickness direction. 3. The vegetation hole of the outer wall portion, wherein a front shape is formed in a rectangular shape, and one short side of the outer wall portion is cut off an edge portion of the short side. 1
Or the retaining wall block according to 2. 4. The holding device according to claim 1, wherein the outer wall portion has a rectangular shape in front view, and the vegetation hole is provided on one or more of four sides of the outer wall portion. Wall block. 5. The vegetation hole according to claim 1, wherein said vegetation hole is formed to have a wide width toward a back side of an outer wall portion.
3. The retaining wall block according to 3 or 4. 6. An outer wall portion forming an outer surface of a retaining wall, and a projection extending rearward of the outer wall portion, wherein an edge portion of the outer wall portion is cut off at a part of an outer peripheral edge of the outer wall portion. In a construction method of a retaining wall in which a retaining wall block in which vegetation holes are provided in a bent shape is stacked and concrete is cast on the back side of the retaining wall block to form a retaining wall, when stacking the retaining wall block, Then, after filling the vegetation holes with vegetation balls made of soil or the like and closing the vegetation holes of the retaining wall block with vegetation material, casting concrete on the back surface of the retaining wall block to construct the retaining wall. Construction method of retaining wall characterized by the following. 7. The retaining wall construction method according to claim 6, wherein the vegetation ball is formed by mixing vegetation seeds into a vegetation material such as soil and maintaining the vegetation ball in a predetermined shape. .