JP2003328375A - Edge wall of retaining wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily construct an edge wall with the surface having a natural stone pattern similar to that of a retaining wall body while achieving less site work and a shorter period for constructing the edge wall. <P>SOLUTION: A first stage block and upper stage blocks each having a side face in an approximately parallelogram plate shape are layered with each other. Recessed portions and protruded portions are formed in the upper faces of the blocks and on the lower faces of the upper stage blocks, respectively. One or more upper stage blocks are stacked on the first stage block with the recessed portions being fitted to the protruded portions and the front, reverse and right and left side faces being almost flush with each other. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seawall for rivers,
The present invention relates to an edge wall formed at an end portion of a retaining wall provided for stabilizing a road slope or a ground on a steep slope.

[0002]

2. Description of the Related Art Retaining walls have been conventionally constructed to stabilize the slope. Such a retaining wall is formed by, for example, vertically and horizontally stacking retaining wall blocks having a front plate and a retaining portion integrally formed on the back surface of the front plate to form a retaining plate. It is constructed by filling the back of the wall with filler such as concrete. In addition, the edge of the retaining wall may be exposed depending on the topography of the retaining wall. In such a case, a small-scale wall is constructed by cast-in-place concrete so as to cover the end of the retaining wall.

[0003]

Since the conventional edge wall is constructed by on-site cast concrete, the steps of assembling formwork, placing concrete, hardening and curing concrete, and demolding formwork are performed on site. It had to be done, and it took time and labor to perform on-site work. In addition, as interest in nature and the environment has increased in recent years, and a landscape close to nature is required for retaining walls, the use of concrete blocks for retaining walls with a natural stone pattern on the surface reduces the entire retaining wall. The landscape is constructed as if it was made of natural stone, but if the small wall of such a retaining wall is constructed with cast-in-place concrete, the concrete surface will be exposed on the surface of the small wall, and the landscape There was also a problem that it was not good.

The present invention reduces the work on the site when constructing the edge wall by blocking the edge wall, realizes the construction in a short period of time, and makes the surface of the retaining wall a natural stone pattern. In addition, the task was to make it possible to easily construct an edge wall having a natural stone pattern with exactly the same surface.

[0005]

SUMMARY OF THE INVENTION The present invention comprises a first-stage block and an upper-stage block, each of which has a side surface shape of a substantially parallelogram plate, and a concave portion is formed on the upper surface of each of the blocks. A convex portion is formed on the lower surface, and one or a plurality of upper blocks are fitted on the first-stage block so that the convex portion fits into the concave portion, and the front, back, and left and right side surfaces of each block. Is a small wall of a retaining wall characterized in that they are stacked so that they are substantially flush with each other.

By dividing the small wall into blocks, the work at the site becomes the work of stacking the blocks, and assembling the formwork, placing concrete, hardening and curing concrete,
It eliminates the need for on-site processes such as demolding molds, and can save labor on-site and shorten on-site processes. Further, since the small wall formed by the blocks functions as a formwork for the concrete to be cast into the rear surface of the retaining wall surface, a formwork for stopping the concrete is unnecessary. Further, since the block of the small wall is manufactured at the factory, it is possible to easily give the surface of the block the same natural stone pattern as the surface of the retaining wall block.

In the block of the small wall, one or a plurality of upper blocks are stacked on the first block. At this time, since the convex portion on the lower surface of the upper block is fitted into the concave portion on the upper surface of the lower block, the blocks are integrated with each other, so that the edge wall has high strength. A through hole in the width direction is provided in the concave portion and the convex portion, and by inserting a bolt into the through hole in a state where the convex portion is fitted in the concave portion, the upper and lower blocks are connected more firmly, and Strength is further increased. If the tip of the bolt is connected to the retaining wall body, the fore wall and the retaining wall body are integrated. It is possible to provide a through hole in the width direction in the first-stage block, insert a bolt into this through hole, and connect the tip of the bolt to the retaining wall body, which further reduces the edge wall and retaining wall body. Be integrated.

It is desirable that the upper block has a predetermined height, that is, the same height as or an integral multiple of the height of the retaining wall block that constitutes the retaining wall body. Then, by forming the first-stage block at an arbitrary height, it is possible to adapt to the retaining walls of various heights. By doing so, a large number of necessary upper blocks are standardized, so that it is possible to keep the formwork and the manufacturing cost low.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the drawings related to the embodiments. Figure 1 is the first block 2
2 is a plan view of the block 2, FIG. 3 is a front view of the block 2, FIG. 4 is a longitudinal sectional view of the block 2, and FIG.
Is a side view of the upper block 7, FIG. 6 is a plan view of the block 7, FIG. 7 is a front view of the block 7, and FIG.
Bottom view of FIG. 9, FIG. 9 is a perspective view of the retaining wall block 10, FIG.
Is a front view of a retaining wall having a fore edge wall 1, FIG. 11 is a vertical sectional view of the fore edge wall 1, FIG. 12 is a vertical sectional view of a retaining wall body, and FIG. 13 is a description showing a relationship between a first stage block 2 and a foundation 21. FIG. 14, FIG. 14 is an explanatory view of a connecting portion of the blocks 2 and 7, and FIG. 15 is a perspective view of the retaining wall block 40.

First-stage block 2 shown in FIGS. 1 to 4, and
The upper block 7 shown in FIGS. 5 to 8 is for constructing an edge wall formed at the end of the retaining wall. The first-stage block 2 is made of reinforced concrete and has a side surface of a substantially parallelogram shape, but the lower part on the front side has a shape in which one corner portion of the substantially parallelogram is cut off so as to be a substantially vertical surface. 1
Since at least the lower part of the step block is submerged in the ground, such a shape may be used for saving the concrete material. On the upper surface of the block 2, there is formed a trapezoidal recessed portion 3 having a smaller dimension as it goes deeper. On the side surface, a through hole 4 is formed on the lower side, and a through hole 5 is formed at the concave portion. A part of the front surface and a part of the side surface are a decorative portion 6 having a natural stone pattern. The mold for molding the first-stage block 2 can change the height h of a portion of the block 2 where the decorative portion 6 is not applied to manufacture the blocks 2 having various heights. In this way, by changing the height of the first block to adapt it to retaining walls of various heights, it is possible to standardize a large number of required upper blocks (if one type of upper block is manufactured, Therefore, the formwork and the manufacturing cost can be kept low.

The upper block 2 is made of reinforced concrete,
The side shape is roughly parallelogram. Block 7
On the upper surface of the trapezoidal recess 3 whose dimension decreases toward the deeper part
However, the lower surface has a trapezoidal convex portion 8 having a smaller size.
Is formed, and the convex portion 8 has a shape dimension that fits into the concave portion 3. Through holes 5 are formed in the side surface at the lower convex portion and the upper concave portion. A part of the front surface and the side surface is a decorative portion 6 having a natural stone pattern.

The retaining wall block 10 of FIG. 9 is an example of a very general block for constructing a retaining wall. The block 10 made of concrete is composed of a front plate 11 and a retaining portion formed so as to project in the direction of the rear surface thereof. The retaining portion is a rear plate 12 and a front plate 11 which are arranged in parallel with the front plate 11 at predetermined intervals. And a connecting plate 13 for connecting the back plate 12. The front side of the front plate 11 is a decorative portion 14 having a natural stone pattern.

10 to 12 relate to a retaining wall 20 constructed by using the first block 2, the upper block 7 and the retaining wall block 10. An edge wall 1 in which a first-stage block 2 and a plurality of upper-stage blocks 7 are stacked is formed at the end of a retaining wall main body in which blocks for a retaining wall are stacked.

The retaining wall main body is formed by stacking retaining wall blocks 10 as shown in FIG. Between the front plate 11 and the rear plate 12 of the retaining wall block 10 is usually filled with concrete (not shown in FIG. 12). On the back side of the retaining wall block, a suction preventive material (such as nonwoven fabric) and a back-filling material (such as crushed stone) are provided.

The forehead wall 1 is constructed as follows. Figure 11
As shown in, the first-stage block is installed on a suitable earthwork such as waste concrete 22. At this time, as shown in FIG. 13, the anchor bolts provided on the foundation 21 are inserted into the through holes 4 in the lower portion of the first-stage block 2 and the nut 36 is tightened to fix the first-stage block to the foundation 21. When,
That is, it is integrated with the retaining wall body. The upper block 7 is sequentially stacked on the first block 2. The front, back, and left and right side surfaces of each block are substantially flush with each other.
The convex portion 8 of the upper block is fitted into the concave portion 3 of the lower block. At this time, the recessed portion 3 and the through hole 5 of the protrusion 8 that are fitted together are communicated with each other. As shown in FIG. 14, bolts 37 are inserted into the communicating through holes 5 and tightened with nuts 38, whereby the upper and lower blocks are integrated. Further, when the tip of the bolt 37 is swallowed into the slagging concrete 34 of the retaining wall body and anchored and coupled to the retaining wall body, the edge wall 1 is integrated with the retaining wall body at the joint of each block. A top end concrete 30 is filled in the concave portion 3 on the upper surface of the uppermost block 7.

The retaining wall 20 is constructed by stacking blocks instead of cast-in-place concrete on the edge wall, so that the construction is simple and the construction period is short. In addition, the block of the small wall is made by factory to form a decorative part with the same natural stone pattern as the block for the retaining wall, so as shown in FIG. 10, the entire retaining wall has a natural stone pattern and is excellent in scenery. It becomes a thing.

The retaining wall block for constructing the retaining wall body is not limited to the block 10 shown in FIG. 9, but various types can be used. FIG. 15 shows another example of a retaining wall block. This retaining wall block 40 is a plate-shaped retaining portion 4 on the back side of a front plate 41.
2 is the one projecting at a right angle toward the back surface.

[0018]

According to the present invention, since the fore wall of the retaining wall is made into a block, it is possible to reduce the on-site work at the time of constructing the fore wall and construct it in a short period of time, and at the same time, make the retaining wall surface a natural stone. When made into a pattern, it is possible to easily construct a small stone wall having the same surface as a natural stone pattern. Since the convex portion of the upper block is fitted into the concave portion of the lower block, the blocks are integrated with each other to form a strong edge wall. A through hole in the width direction is provided in the concave portion and the convex portion, and by inserting a bolt into the through hole in a state where the convex portion is fitted in the concave portion, the upper and lower blocks are further integrated, and a stronger forehead wall is formed. . A through hole in the width direction is provided in the first stage block, a bolt is inserted into the through hole, and the tip of the bolt is connected to the retaining wall body, whereby the fore wall and the retaining wall body are integrated.

[Brief description of drawings]

FIG. 1 is a side view of a first stage block 2.

FIG. 2 is a plan view of a first stage block 2.

FIG. 3 is a front view of a first stage block 2.

FIG. 4 is a vertical sectional view of a first stage block 2.

FIG. 5 is a side view of an upper block 7.

FIG. 6 is a plan view of an upper block 7.

FIG. 7 is a front view of an upper block 7.

8 is a bottom view of the upper block 7. FIG.

FIG. 9 is a perspective view of the retaining wall block 10.

FIG. 10 is a front view of the retaining wall 20 including the foremost wall 1.

FIG. 11 is a vertical cross-sectional view of the foremost wall 1.

FIG. 12 is a vertical sectional view of a retaining wall body.

FIG. 13 is an explanatory diagram showing the relationship between the first-stage block 2 and the foundation 21.

FIG. 14 is an explanatory diagram of a combined portion of blocks 2 and 7.

FIG. 15 is a perspective view of a retaining wall block 40.

[Explanation of symbols]

1 small wall 2 1st stage block 3 recess 4 through holes 5 through holes 6 makeup department 7 Upper block 8 convex 9 makeup department 10 Retaining wall block 11 front plate 12 Back plate 13 Connection plate 14 makeup department 20 retaining wall 21 Basic 22 Waste concrete 30 top concrete 31 crown concrete 32 Suction prevention material 33 Backing material 34 Trunk concrete 35 anchor bolt 36 nuts 37 Volts 38 nuts 40 retaining wall block 41 front plate 42 copy

Claims (6)

[Claims] 1. The side surface shape is a substantially parallelogram plate shape 1.
It consists of the upper block (2) and the upper block (7),
A concave portion (3) is formed on the upper surface of each of these blocks (2, 7).
However, a convex portion (8) is formed on the lower surface of the upper block (7), and one or a plurality of upper blocks (7) are formed on the concave portion (3) on the first block (2). Each block (2, 7) so that the said convex part (8) fits.
Front wall, rear wall and left and right side surfaces are stacked so that they are substantially flush with each other 2. The edge wall according to claim 1, wherein a through hole (5) in the width direction is provided in the concave portion (3) and the convex portion (8), and the convex portion (8) is formed in the concave portion (3). Small wall of a retaining wall characterized in that upper and lower blocks are integrated by inserting a bolt (37) into the through hole (5) in a fitted state. 3. The edge wall of claim 2, wherein the tip of the bolt (37) is connected to the retaining wall body. 4. The edge wall according to claim 1, 2, or 3,
A through hole (4) in the width direction is provided in the first block (2), a bolt (35) is inserted into the through hole, and the tip of the bolt (35) is connected to the retaining wall body. Small wall of retaining wall to be 5. The edge wall of a retaining wall according to claim 1, 2, 3 or 4, wherein a natural stone pattern is formed on the front side of each block (2, 7). 6. The edge wall according to claim 1, 2, 3, 4 or 5, wherein the upper block (7) is formed at a predetermined height, and the first block (2) is set at an arbitrary height. Small wall of retaining wall characterized by being formed so that it fits retaining walls of various heights