JPH0892977A - Block for retaining wall - Google Patents

Abstract

PURPOSE: To promote construction efficiency by providing continuously a pluraity of back plates vertically in opposition to each other to the rear of the front plate and, at the same time, connecting a plurality of vertical channels opposed to each other at specific intervals to the insides of the back plates. CONSTITUTION: Two back plates 3 forming a plurality of vertical channels 4 opposed to each other at equal intervals on both sides are opposed in parallel with each other and are continuously connected to the rear of an oblong rectangular front plate 2 vertically to form a block 1 for a retaining wall. When the retaining wall is constructed, a large number of blocks 1 are piled up in a plurality of stages in a state of different level along a slope and, at the same time, a partition plate 5 is inserted in the optional vertical channels 4 between the back plates 3 to partition a space between the back plates 3. In addition, a front space is filled with displaced soil for planting, and a rear space is filled with filler.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a block used for constructing a retaining wall.

[0002]

2. Description of the Related Art The construction of retaining walls that support soil such as cut soil and embankment has generally been done by concrete or reinforced concrete, but recently, construction efficiency and economic efficiency have been shortened and the construction period has been shortened. Block construction methods have become popular because of the fact that

FIGS. 6 and 7 show a conventional block B. In FIG. 6, two rearward facing plates b are vertically connected to each other on the rear surface of a horizontally elongated rectangular front plate a. Has been done.

On the other hand, in the one shown in FIG. 7, two rearward-facing plates d having an inverted L shape are connected in parallel to each other on the rear surface of a front plate c having a slightly large area, and further rearward-facing plate d A rear facing plate e having a small vertical dimension is provided at the end in parallel with the front plate c.

[0005]

Each of the blocks B described above
For example, when constructing an inclined retaining wall and attempting to plant trees in the space of each block, as shown in FIG. 8, a large number of blocks B (showing an example using the block of FIG. 6) are used.
Stacked in different steps while using backing material, each block B
In the space between the two rear facing plates b in Figure 2, the soil and humus f are filled and planted.

At this time, since the block B is often relatively large in size, if the space f is filled with the soil f, a large amount of soil is required, which is uneconomical. In many cases, the space between them is partitioned by a partition plate g, and the soil f and the like are put in the front and the filling material h is put in the rear to plant trees.

In both of the conventional blocks B shown in FIGS. 6 and 7, the side faces of the rearward facing plates b and d are flat surfaces, and the partition plate g is not held in a fixed position. The positioning of the partition plate g is troublesome, and the inserted partition plate g may be displaced in the front-rear direction when the filling material h or the soil f is filled or after the retaining wall is constructed.

The present invention has been made in order to solve the above-mentioned problems, and makes it possible to construct a retaining wall efficiently by holding the partition plate easily and stably at an appropriate position. The purpose is to provide a retaining wall block.

[0009]

In order to achieve the above-mentioned object, the present invention comprises a front plate and at least two rearward facing plates which are vertically connected to each other on the rear surface of the front plate. A plurality of vertical grooves facing each other are provided at predetermined intervals on each inner surface of the facing plate.

In this case, it is desirable to provide a plurality of vertical grooves on each outer surface of the rear facing plate.

In this case, it is desirable that all of the plurality of vertical grooves are parallel grooves having substantially the same width and the same depth.

In this case, it is desirable that a rectangular partition plate, which is shorter than the height of the rearward plate, be fitted in the plurality of vertical grooves.

In this case, when a plurality of retaining wall blocks are arranged adjacent to each other, it is desirable that the rearward facing plates and the rearward facing plates located adjacent to each other be equidistant from each other.

In this case, it is desirable that the shape of the vertical groove be expanded outward.

In this case, it is desirable to provide a plurality of vertical grooves on each outer surface of the rear facing plate.

Further, it is desirable to form a concave portion on at least one of the upper surface of the front plate and a plurality of positions on the upper surface of each rearward plate, and to provide a convex portion on the lower surface of the front plate that matches the concave portion.

[0017]

By providing a plurality of vertical grooves facing each other on the inner side surfaces of the two rear facing plates that are connected to the rear surface of the front plate,
The partition plates are stably held in a fixed position by these vertical grooves.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, a block 1 of the present invention comprises a front plate 2 in the form of a horizontally long rectangle, and a rear plate orthogonal to the front plate 2. It is composed of two rear facing plates 3 and 3. The position of each of the rearward facing plates 3 is a portion separated from both ends of the front face plate 2 by approximately 1/4 of its entire length.

A plurality of (four in this embodiment) vertical grooves 4 are formed at equal intervals and on opposite sides of each of the rearward facing plates 3. A partition plate 5 can be fitted and inserted in the vertical groove 4 between the two rear facing plates 3. 6
Is a water passage hole formed in the center of the lower portion of the front plate 2, and 7 is an insertion hole for inserting a reinforcing bar.

FIG. 2 shows a procedure for constructing an inclined retaining wall using the block 1.

As in the conventional case, by stacking a large number of blocks 1 in a plurality of steps along the sloping ground in a stepwise manner and inserting a partition plate 5 into an arbitrary vertical groove 4 in a space between the two rearward facing plates 3 and 3. It is partitioned into appropriate sizes, and the soil for planting trees 8 and the like is put in the front space, and the filling material 9 is put in the rear space. By planting trees 10 in the portion containing the soil 8, it is possible to construct a green retaining wall.

At the time of this construction, the partition plate 5 is attached to each vertical groove 4
It can be positioned very easily in the front-rear direction by simply inserting it into the housing, and it can be stably held at a predetermined position. Even if earth pressure or the like is applied after building the wall, the partition plate 5 is not likely to shift in the front-rear direction.

Further, as shown in FIG. 2, by inserting the partition plate 5 between the vertical grooves 4 of the rearward facing plates 3 adjacent to each other in each block 1, the rearward facing plate 3 is bent in its thickness direction. It is reinforced against load.

It is preferable that the space formed by the adjacent rear facing plates 3 is filled with the soil 8 and the filling material 9 with the partition plate 5 as a boundary so that the trees are planted forward.

FIG. 3 shows another embodiment of the block of the present invention.

In the block 11 of this embodiment, a step portion 12 along the longitudinal direction is formed on the upper surface of the front plate 2 similar to that described above by notching the front half portion in the thickness direction downward. Further, the lower surface of the front plate 2 is formed with a downward projection 13 having a shape matching the step portion, and further, the downward projections 14 are formed on the lower surfaces of both rearward plates 3 toward the rear side.

On the other hand, on the upper surface of each rearward plate 3, a plurality of (five in this embodiment) concave grooves 15 which are aligned with both the projections 13 and 14 are formed in parallel with each other at equal intervals. ing.

Recesses such as the step portion 12 and the recessed groove 15,
And a block 11 having protrusions 13 and 14 matching them, as shown in FIGS.
It is easy to position the blocks in the front-back direction when they are stacked vertically or in steps, and each block 1
Even if earth pressure acts on 1, there is no risk that the block 11 will be displaced, and it is possible to prevent the landscape of the retaining wall from being damaged.

In the block 11 of this embodiment, a concave groove may be formed in the center of the upper surface of the front plate 2 instead of the stepped portion 12, and a protrusion matching the groove may be provided on the lower surface of the front plate 2. .

When the blocks 11 are used for vertical stacking, the step portion 12 (which may be a concave groove) and the projection portion 13 of the front plate 2 are used.
Alternatively, any one of the groove 15 and the protrusion 14 on the upper surface and the lower surface of the rear facing plate 3 may be provided.

When stacking the blocks 11 in different stages,
The step 14 of the front plate 2 and the protrusion 14 of the rearward plate 3 may be omitted.

Further, a plurality of protrusions 14 on the lower surface of each rearward plate 3 may be provided at the front, the intermediate portion or the like.

The embodiments of the present invention have been described above with reference to the drawings. However, the specific structure is not limited to these embodiments, and even if there are changes and additions within the scope not departing from the gist of the present invention, the present invention is not limited. Included in the invention.

[0035]

According to the present invention, the following effects can be obtained.

(A) Since the partition plate can be stably held by the vertical groove, it becomes easy to fill the soil and filling material, and
There is no risk of displacement due to earth pressure.

(B) Since the partition plate can be positioned quickly for a plurality of blocks, the construction of the retaining wall becomes efficient and the construction period can be shortened.

(C) According to the second aspect of the present invention, the partition plate can be fitted into the vertical groove on the outer surface of the adjacent rearward plates of each block, and acts on the rearward plate. It is reinforced against bending load in the thickness direction.

(D) According to the third aspect of the present invention, partition plates having a predetermined shape can be freely inserted into or removed from all the vertical grooves.

(E) According to the invention described in claim 4, the partition plate does not interfere with the retaining wall blocks which are vertically stacked.

(F) According to the fifth aspect of the invention, it is possible to reinforce the load in the thickness direction of the rear facing plate of the adjacent retaining wall block by using the partition plates having the same shape.

(G) According to the invention described in claim 6, since the vertical groove is open outward, the partition plate can be easily fitted.

(H) According to the invention as set forth in claim 7, positioning of the blocks in the front-rear direction becomes easy when stacking the blocks, and even if earth pressure is applied after the retaining wall is constructed, each block is positioned. Will not occur.

[0044]

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a construction example of a retaining wall using the block of the present invention.

FIG. 3 is a perspective view showing another embodiment of the present invention.

FIG. 4 is a side view showing an example of construction of a retaining wall using the block of FIG.

FIG. 5 is a side view showing an example of construction of another retaining wall.

FIG. 6 is a perspective view showing a conventional block.

FIG. 7 is a perspective view showing another block of the same.

FIG. 8 is a perspective view showing an example of construction of a retaining wall using a conventional block.

[Explanation of symbols]

1 block 2 front plate 3 rear plate 4 vertical groove 5 partition plate 6 water hole 7 insertion hole 8 customer soil 9 filling material 10 trees 11 block 12 steps (recess) 13, 14 projecting mouth 15 recess (recess) )

Claims (7)

[Claims] 1. A front plate, and at least two rearward facing plates that are vertically connected to each other on the rear face of the front facing plate, and a plurality of vertical grooves facing each other on each inner side surface of the rearward facing plate. Blocks for retaining walls, which are provided at predetermined intervals. 2. The retaining wall block according to claim 1, wherein a plurality of vertical grooves are provided on each outer surface of the rearward facing plate. 3. The retaining wall block according to claim 1, wherein the plurality of vertical grooves are parallel grooves having substantially the same width and the same depth. 4. The retaining wall block according to claim 1, wherein a rectangular partition plate having a size shorter than the height of the rearward plate is fitted in the plurality of vertical grooves. 5. The structure according to claim 2, wherein when a plurality of retaining wall blocks are arranged adjacent to each other, the rearwardly-directed plates located next to each other are equidistant from each other. Retaining wall block. 6. The retaining wall block according to claim 1, wherein the shape of the vertical groove is widened outward. 7. A recess is formed on at least one of the upper surface of the front plate and a plurality of locations on the upper surface of each rearward plate, and a projection is formed on the lower surface of the front plate to be aligned with the recess. Block for retaining wall.