JPH03180624A - Block for constructing retaining wall and constructing method for retaining wall - Google Patents

Abstract

PURPOSE:To shorten the construction period by connecting plural front face block bodies and rear face block bodies by a connecting member to form blocks for connecting a retaining wall, and throwing concrete into a space between the front and rear block bodies. CONSTITUTION:Front face block bodies 1 and rear face block bodies 2 are connected to each other through connecting holes 5 formed on four corners of each stiffening plate while a specified spacing is kept between them by a connecting member 3 having the stiffening plate 4. For constructing a retaining wall, the bodies 1 are connected to each other by the member 4 on upper and lower sides and right and left sides, and the bodies 2 are similarly connected to each other on upper and lower sides and on right and left sides. The front face bodies and rear face bodies are installed on a previously constructed foundation, reinforcing bars 9 are arranged in a space between the bodies 1 and the bodies 2 connected by the connecting member 3, and concrete is thrown into the space 10. The construction period can thus be shortened without using any mold.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a retaining wall construction block and a retaining wall construction method that enable retaining walls to be constructed without using formwork.

Conventional techniques and their problems> The conventional method of constructing retaining walls is to maintain a space equal to the wall thickness of the retaining wall to be constructed at the construction site, erect a formwork, and fill that space. Concrete was poured inside. When constructing a relatively high retaining wall, instead of erecting a formwork for that height, first erect the formwork downwards, pour concrete into it, and wait until the concrete has sufficiently cured before starting the next stage. It is clear that the construction period required for the entire construction work will be long, and not only is this a major problem, but the preparation, assembly, and installation of the formwork is also a major problem. It had been pointed out.

For example, blocks for revetment in revetment construction are known as a method that does not use formwork, but this revetment work also does not use formwork, but the revetment blocks are laid side by side from the bottom of the slope. While pouring concrete, it was necessary to wait until it had sufficiently cured before moving on to the next stage of construction, and the complicated shape of the revetment blocks made it complicated to insert reinforcing bars. This was also a cause of prolonging the construction period. Moreover, blocks for seawalls are generally produced mainly in factories, and must be transported to the construction site.Moreover, they are not lightweight at all, which affects the economy of construction costs. It was.

Means for Solving the Problems> Therefore, in order to solve the above-mentioned problems, the retaining wall construction block and retaining wall construction method according to the present invention have a plurality of independent front block bodies and back block bodies. of,
Installing retaining wall construction blocks configured by connecting adjacent front block bodies and adjacent rear block bodies, and the front block bodies and rear block bodies while maintaining a desired interval using connecting members, Concrete is poured into the space formed by the front block body and the back block body, thereby eliminating the need for formwork and shortening the construction period.

<Example> Next, an example of the retaining wall construction block and retaining wall construction method according to the present invention will be described based on the drawings. 1 is a front block main body formed in, for example, a rectangular plate shape; 2 is also a back block main body formed in, for example, a rectangular plate shape. The front block main body 1 and the back block main body 2 are each made of concrete, and in the illustrated embodiment, a rectangular plate shape is shown, but they may be square, for example, and the upper and lower The shape and thickness are not particularly limited as long as they can be arranged in a row in the left and right direction. 3 is the front block body 1
This is a connecting member for connecting the back block main body 2 with a desired spacing, and this connecting member 3 has an H-shaped cross section with a planar member 4 formed at both ends, and the planar member 4 is provided with a plurality of connecting holes 5. That is,
Although the shape of the planar member 4 is not particularly limited, for example, when it is configured in a rectangular shape as shown in the figure, the connecting holes 5 are formed at the corners thereof. 6 is a connecting hole drilled in the front block main body 1, and this connecting hole 6
This is the part where the front block bodies 1 touch each other when the front block bodies 1 are arranged vertically and horizontally, that is, when the front block bodies 1 are formed into a rectangular shape and are arranged in a row on the base. At each corner of the rectangular front block main body 1 (see Fig. 2), or when installed in a so-called stacked manner, at a position approximately midway between each corner and the long side (see Fig. 2). (See Figure 3). It goes without saying that the spacing between these connecting holes 6 should match the spacing between the connecting holes 5 drilled in the planar member 4 of the connecting member 3. Also, the connection hole 6 of this front block body 1
It is preferable to do so from the back side to the middle of the wall thickness of the front block body 1, without penetrating the front surface after construction, in order not to impair the aesthetic appearance of the front.
is a connecting hole drilled in the block body 2 for the back side, and the position of this connecting hole 7 is the same as that drilled in the block body 1 for the front side, but the connecting hole 7 in the block body 2 for the back side is Even if it is penetrated, there is no problem of spoiling the appearance, and it is actually preferable for the work. And this connecting member 3
The front block body 1 and the back block body 2 are
In this case, connecting holes 5, 6.7
It is connected via bolt 8 to.

Construction method In order to construct a retaining wall using the retaining wall construction blocks having the structure described above, first connect the front block body 1 vertically and horizontally using the planar members 4, and then connect the back block The main body 2 is also connected vertically and horizontally. Then, this is installed on a foundation constructed by a conventional method, and concrete is poured into the space 10 between the connected front block body 1 and rear block body 2 by passing reinforcing bars 9 according to a conventional method. That's what I do. In this case, the front block main body 1 and the back block main body 2 can be installed in the vertical direction up to the top position in advance.
Further, in consideration of back pressure, the space 10 may be made thicker and thinner at the bottom, and thinner toward the top. In short, these cases can be achieved by changing the length of the connecting member 3.

<Effects of the Invention> As described above, according to the retaining wall construction block and retaining wall construction method according to the present invention, a plurality of independent front block bodies and rear block bodies are connected adjacently using a connecting member. A retaining wall construction block is installed, which is constructed by connecting the front block body and the adjacent back block body, and the front block body and the back block body while maintaining the desired spacing, and these front block bodies and the rear block body are installed. Since the concrete is poured into the space formed by the main block body, it is possible to shorten the construction period without using formwork, and it is also extremely easy to insert reinforcing bars into each block. The small volume of the main body makes it suitable for transportation, and its effects are extremely large.

[Brief explanation of drawings]

The drawings show an embodiment of the retaining wall construction block and the retaining wall construction method according to the present invention. FIG. 1 is a partially cutaway perspective view of the retaining wall construction block, and FIG. FIG. 3 is a cross-sectional view showing a connected state, FIG. 3 is a cross-sectional view showing a connected state in a stacked manner, and FIG. 4 is a cross-sectional view showing a retaining wall construction method. 1... Front block body 2... Back block body 3... Connecting member 4... Planar member 5.6.7... Connecting hole 8... Bolt 9... Reinforcing bar 0・・・Space part

Claims (1)

[Scope of Claims] 1. A block for constructing a retaining wall, characterized in that a front block main body and a back block main body, which are independent from each other, are connected by a connecting member while maintaining a desired interval. 2. The block for constructing a retaining wall according to claim 1, wherein the front block main body and the back block main body have a connecting hole formed at their mating ends. 3. The block for constructing a retaining wall according to claim 1, wherein the front block body and the back block body have connecting holes formed near the corners. 4. The block for constructing a retaining wall according to claim 1, wherein the connecting member is formed into an H-shaped cross section with planar members at both ends, and a connecting hole is formed in the planar member. 5. Connect a plurality of independent front block bodies and rear block bodies to adjacent front block bodies and adjacent rear block bodies using connecting members, and maintain a desired interval between the front block bodies and rear block bodies. Retaining wall construction characterized by installing retaining wall construction blocks constructed by connecting block bodies, and pouring concrete into the space formed by these front block bodies and back block bodies. Method.