JP2001348890A - Retaining wall block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the earth pressure stability of a retaining wall block filled with crushed stones inside to allow the growth of plants. SOLUTION: A body part 2 of this retaining wall block is so constituted that connecting walls 6 are projected forward from a rear wall 5 and that front walls 7 extend from the tips of the connecting walls so as to be open. A surface plate 3 is stuck to the front walls with an adhesive. The front walls are lower than the rear wall, so that a gap is formed between the vertically adjacent front walls when the blocks are piled. Both faces of each connecting wall is provided with grooves for fitting a partition plate so as to be able to partition a space surrounded by the front and rear walls, in two front and rear spaces. In the case earth pressure is high, the partition plate is fitted between the grooves, and body filling concrete is placed in the rear space, while the front space is filled with stones.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete retaining wall block used for a bank protection of a river and a retaining wall for road and residential land development.

[0002]

2. Description of the Related Art Covering a river bank with concrete blocks impairs the natural scenery. Recently, empty blocks capable of planting have been used. This type has a hole on the front that leads to the inside of the block, and it is packed with chestnut stone and crushed stone so that animals and plants can grow, and the plant that extends from the hole on the front covers the block surface and is close to nature It is designed to create a landscape.

Since the retaining wall supports the earth pressure by its weight, it is necessary to secure a large weight. If the blocks are filled with stones, the apparent weight of the retaining wall can be secured. However, the stone packed in the block is not integrated with the block main body, so it is easy to fall off, and the stone does not have a function of connecting the upper, lower, left and right blocks. For this reason, there is a problem that the retaining wall with the filling stone in the block is more likely to collapse as compared with the case where the concrete body is hit.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to improve the earth pressure stability of a retaining wall block in which crushed stone is packed and planted.

[0005]

SUMMARY OF THE INVENTION A retaining wall block according to the present invention is provided at a position where it is retracted inward from both ends of the block.
This is an H-shaped block in which a front wall and a rear wall are connected by a single connecting wall. Vertical grooves are formed on both surfaces of both connecting walls, and a partition plate is fitted between the opposing grooves so that the space sandwiched between the front and rear walls can be divided into front and rear.

As described above, the inside of the block can be divided back and forth by the partition plate if necessary, so that each divided section can be filled with a different material. For example, the front section is filled with stones, and the rear section is filled with body concrete. In this case, since the front section has a space between the filling stones, the creature can propagate. On the other hand, the concrete poured into the rear section is hard to fall off because it is integrated with the block body, and the upper, lower, left and right blocks are connected via the concrete, so the retaining wall is large. It is less likely to collapse under pressure. Retaining walls can be made stronger by embedding longitudinal reinforcing bars in the concrete

[0007] Earth pressure is not so much applied to a block used for a low retaining wall or a block used for an upper part of the retaining wall. Such blocks do not need to be sunk in concrete, so that no internal partition is used and the entire interior space is packed with stone. Conversely, when used in places where the earth pressure is extremely large, such as the lower part of a high retaining wall, the entire interior space may be filled with stuffed concrete, and a partition plate is not necessary at this time.

As described above, according to the present invention, since the connecting walls are provided with the grooves, the internal space can be divided into front and rear by fitting a partition plate into the grooves, and the front section is filled with stones. In this way, it is possible to increase the stability against earth pressure by placing concrete in the later section.

The front wall is preferably provided with a hole or the height of the front wall is made smaller than that of the rear wall so that a gap is formed between the front walls of vertically adjacent blocks. In this way, open air can pass through the holes or gaps to the stowed area,
Animals and plants can inhabit therein, and the plants can extend out of the holes or gaps to cover the retaining wall surface.

[0010] The front wall may be provided with a natural stone plate attached to its surface. This allows the retaining wall to have a natural texture.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A retaining wall block 1 is an H-shaped block, and as shown in FIG. 1, is constituted by attaching a front plate 3 to a main body 2 which is a concrete molded product. The size of the block is, for example, 1250 mm width, 750 mm depth, and 500 height. The main body 2 has two connecting walls 6 protruding forward from the rear wall 5 and extends from the ends of the connecting walls such that the front walls 7 open. The front wall is smaller in height than the rear wall, and when the blocks are stacked, a gap 23 is formed between the front wall and the front wall.

In order to divide the space between the front and rear walls into two by the partition plate 17, a vertical groove 9 in which the edge of the partition plate is fitted is provided on both surfaces of the connecting wall 6.

A projection 10 is provided on the upper surface of the connecting wall 6, and a recess 11 having substantially the same shape is provided on the lower surface. Holes 12 are formed in the connecting wall 6 before and after the groove 9.

The top plate 3 is made of natural stone (eg, granite) in order to give the retaining wall a natural texture. Instead of natural stone, a pseudo stone or pseudo wood made of concrete may be used. The face stone 3 is fixed to the front wall 7 using an adhesive. Instead of the adhesive, the top plate may be fixed using bolts. In this case, a nut is embedded in the front wall, and the tip of a bolt is screwed and tightened to the nut through the front plate. A hole 13 is made in the center of the front plate 3.

When a concrete surface may appear on the retaining wall, as shown by a chain line in FIG.
And the block is integrally formed, and the front plate 3 is not used.

When used, the blocks 1 are alternately stacked on the foundation concrete 15 as shown in FIGS. Behind the block 1 is a backfill stone 16
Stuff. In stacking, the concave portion 11 of the upper block is engaged with the convex portion 10 of the lower block. Also, in each block and between adjacent blocks, a partition plate (wooden plywood) is fitted so as to be fitted in the groove 9.
17 is attached. With this partition plate, the space surrounded by the front and rear walls 5 and 7 of the block is divided into two, and as shown in FIG.
The front section is filled with a filling stone (crushed stone or chestnut stone) 21 tightly. The partition plate 17 is fitted and killed as it is. In addition, since the earth pressure is small above the retaining wall, the partition plate 17 is not provided, and the entire space in the block is packed with stones. Finally, the top concrete 22 is struck to complete.

[0017] The retaining wall thus produced has a high strength because it is filled with the filling concrete. When the date has passed, animals and plants inhabit between the filling stones 21, and the plants 25 extend from the gaps 23 and the holes 13 in the front wall to cover the retaining wall.

[Brief description of the drawings]

FIG. 1 is a perspective view of a retaining wall block. .

FIG. 2 is a perspective view of a state in which blocks are stacked.

FIG. 3 is a longitudinal sectional view of a retaining wall.

FIG. 4 is a horizontal sectional view of a retaining wall.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Retaining wall block 3 Front plate 5 Rear wall 6 Connecting wall 7 Front wall 9 Groove 13 Hole 17 Partition plate 20 Packing concrete 21 Filling stone 23 Gap

Claims (3)

[Claims] An H in which a front wall and a rear wall are connected by two connecting walls which are inwardly retracted from both ends of a block.
A mold block, forming vertical grooves on both surfaces of both connecting walls, and fitting a partition plate between the opposed grooves,
Retaining wall block that divides the space between the front and rear walls into front and rear. 2. The front wall is provided with a hole or the height of the front wall is made smaller than that of the rear wall, so that a gap is formed between the front walls of vertically adjacent blocks. Retaining wall block described in. 3. The retaining wall block according to claim 1, wherein the front wall has a natural stone top plate adhered to a surface thereof.