JP2745458B2 - Retaining wall construction block - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retaining wall construction block for constructing a retaining wall by casting a block into a formwork and casting cast-in-place concrete therein.

[0002]

2. Description of the Related Art As shown in Japanese Utility Model Publication No. Sho 57-12047, for example, this type of conventional retaining wall is constructed by fastening a front plate member and a rear plate member with a binding member at a construction site. It was made with a frame and the inside was filled with cast-in-place concrete.

[0003]

In the above-mentioned conventional construction of the retaining wall, the work of binding and integrating the front plate member and the back plate member has a predetermined width because they are completely formed separately. It was difficult to integrate accurately in dimensions, and it was not possible to assemble in a stable state unless a large number of strong fastening members were used. In addition, since these operations are performed on site, there is a tendency that the operation efficiency on site is poor and the construction period is prolonged.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and is a retaining wall construction block which is easy to assemble and structurally stable. That is, according to the present invention, the front plate portion and the back plate portion are hinged to both sides of the bottom plate portion so that the front plate portion and the back plate portion can be bent freely. It is a retaining wall construction block characterized in that parts are tightly fixed. The bottom plate, front plate, and back plate are integrated so that they can be bent freely, so assembly is easy. Also, the bottom plate exists between the front plate and the back plate, so it is structurally stable. And
It is sufficient to provide at least two fastening members.

[0005] By providing an opening in the bottom plate portion, when such blocks are stacked and configured in multiple stages, the poured concrete spreads from the opening to the lower layer.
The retaining wall constructed by integrating the concrete of the upper and lower layers is integrated as a whole.

The bottom plate portion and the front plate portion are hinged so as to be freely bent, and the front plate portion is raised from the bottom plate portion so as to be substantially L-shaped, and the bottom plate portion and the front plate portion are tightly fixed by a fastening member. The retaining wall construction block characterized by the above is a simplified version of the above-described block, and uses the ground or control panel on the back instead of the rear panel, and the site between the front panel and the ground or control panel. Casting concrete is used to construct retaining walls. After all, it is easy to assemble and structurally stable.

[0007]

1 to 3 show a retaining wall construction block 1 according to an embodiment of the present invention. The block 1 includes a bottom plate 2, a front plate 3, a back plate 4, and a binding member 6, as shown in FIG. The front plate portion 3 and the back plate portion 4 are hinged on both sides of the bottom plate portion 2 with hinge portions 5. In butterfly attachment part 5,
As shown in FIG. 2, a flexible band 5a is buried substantially in the middle of the plate thickness, and a notch 5b is provided at an end of a plate portion around the flexible band 5a, so that it can be bent. The flexible belt is an elastic member such as a metal plate such as an iron plate, a rubber plate, or a sheet woven with carbon fiber. In the case of this embodiment, the flexible band is an iron plate. The block 1 is manufactured in a straight state in which each member is not bent, and thereafter, as shown in FIG. 1, the front plate 3 and the back plate 4 are raised from the bottom plate 2 to form a substantially U-shape. The boards can be assembled by binding them together. In the case of the present embodiment, an anchor 7 protrudes inside the front plate portion 3 and the back plate portion 4, and a reinforcing bar as a fastening member 6 is welded to the anchor 7, and the front plate portion and the back plate portion are tightly fixed. I have. The binding method is not limited to the embodiment, and various known methods can be used. Also, the members to be tied are not limited to the embodiment, and for example, the bottom plate and the front plate and the bottom plate and the back plate may be tied. It is easiest to tie it to the face plate. Assembling may be performed in a factory or on site. If assembled in a factory, it can be assembled with relatively high dimensional accuracy and work on site can be streamlined, but on the other hand, transportation efficiency will be reduced.

[0008] The assembled block 1 is continuously placed on a preformed base 9 as shown in FIG. Adjacent blocks are connected by a connecting device (not shown). Various known connecting devices can be used. After that, cast-in-place concrete is cast inside the block 1 to construct a retaining wall.

Since natural stones 8 are embedded on the front side of the front plate 3, the constructed retaining wall has an appearance as if natural stones were piled up. The natural stone 8 is attached to a formwork for manufacturing the block 1 and embedded in the block.

FIGS. 4 and 5 show a block 11 of another embodiment.
About. The block 11 includes a bottom plate portion 12 and a front plate portion 1.
3, a back plate 14 and a binding member 16; FIG. 4 shows a state before the assembling, and FIG. 5 shows a state of the installed state. The feature of the block 11 is that the opening 1
This is the point where 2a is formed, and as shown in FIG. 5, it is suitable for stacking in multiple stages to construct a high retaining wall. The block 11 is installed on the upper part of the lower block 21 after being assembled. An engagement portion 22 is provided at the upper end of the block 21.
Is provided, and the lowermost portion of the block 11 is engaged with the engaging portion 22 and positioned. After that, cast-in-place concrete is poured from above. The concrete is filled into the lower block 21 through the opening 12a, and is further filled into the upper block 11. Upper and lower blocks 1
Since the concrete inside 1 and 21 communicates with the opening 12a, when the concrete hardens, the upper and lower blocks are integrated. If a vertical reinforcing bar is provided inside the upper and lower blocks through the opening for reinforcement, the integration becomes more solid.

FIG. 6 is an explanatory view of an installed state of a block 31 according to another embodiment. The block 31 includes a bottom plate 32, a front plate 33, and a binding member 35. The bottom plate portion 32 and the front plate portion 33 are hinged so as to be freely bent at the hinge portion 34, and the front plate portion 33 is erected from the bottom plate portion 32 to be substantially L-shaped,
The bottom plate portion and the front plate portion are fastened and fixed by the fastening member 35 and assembled. The assembled block 11 is placed on the foundation 9 as shown in FIG. 6, and cast-in-place concrete is cast between the block 11 and the rear panel 37 to form a retaining wall. There is also a case where concrete is poured between the ground and the control panel. Block 31 is block 1 described above,
Although it is lighter and the manufacturing cost is lower than that of 11 or the like, it is limited to the site where the conditions of the ground are good.
Therefore, means for preventing the front side from being pushed to the front side is required. Of course, various known means can be used as this means.

[0012]

Since the block of the present invention is manufactured as a flat plate, it is easy to manufacture. Since each plate-shaped member is integrated so that it can be bent freely, assembly work is easy, and the assembled block is structurally stable, so high-quality retaining walls can be efficiently constructed. can do. If an opening is provided in the bottom plate, when such blocks are stacked and configured in multiple stages, the cast concrete spreads from the opening to the lower stage,
In addition, the retaining wall formed by integrating the concrete of the upper and lower steps is integrally formed as a whole.

[Brief description of the drawings]

FIG. 1 is a perspective view of an assembled state of a retaining wall building block 1. FIG.

FIG. 2 is a partial cross-sectional view of a state before the retaining wall building block 1 is assembled.

FIG. 3 is an explanatory diagram of an installed state of a retaining wall building block 1.

FIG. 4 is a plan view showing a state before assembling the retaining wall building block 11;

FIG. 5 is an explanatory diagram of an installed state of a retaining wall building block 11.

FIG. 6 is an explanatory diagram of an installed state of a retaining wall building block 31.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Retaining wall construction block 2 Bottom plate part 3 Front plate part 4 Back plate part 5 Hinged part 5a Flexible band 5b Notch 6 Tightening member 7 Anchor 8 Natural stone 9 Foundation 10 Ground mountain 11 Retaining wall construction block 12 Bottom plate part 12a Opening 13 Front plate part 14 Back plate part 15 Hinge part 15a Flexible band 16 Tightening member 17 Anchor 21 Retaining wall construction block 22 Engagement part 31 Retaining wall construction block 32 Bottom plate part 33 Front plate part 34 Hinge part 34a Flexible band 35 Tightening member 36 Anchor 37 Control panel

Claims (3)

(57) [Claims] A front plate and a back plate are hinged on both sides of a bottom plate so as to be freely bent. The front plate and the back plate are erected from the bottom plate to form a substantially U-shape. Retaining wall construction block characterized by tightly fixing parts 2. The retaining wall building block according to claim 1, wherein the bottom plate has an opening. 3. A bottom plate portion and a front plate portion are hinged so as to be freely bent, and the front plate portion stands upright from the bottom plate portion to form a substantially L-shape, and the bottom plate portion and the front plate portion are tightly fixed by a fastening member. Block for retaining wall construction