JPH0325123A - Construction of built-up type retaining wall - Google Patents

Abstract

PURPOSE:To make easy construction of a retaining wall available for vegetable planting feasible by a method wherein box-shaped blocks having opened upper side are laid in a row with soil thrown therein and back-filling is made at their rear side and groups of the box-shaped blocks are further laid thereon in a required number of stages. CONSTITUTION:Box-shaped blocks 1... having opened upper side are laid in a row and vegetation soil 3 and 3 is thrown therein. The space at the rear side of a group of these box-shaped blocks is filled with back-filling soil 4 and compaction is made thereon. The compacted back-filling is made in the height reoughly the same as the upper edge of the group of box-shaped blocks. Over the group of the box-shaped blocks on the first stage, the group of the box-shaped blocks for the second stage is laid in a row with its front face receded. By repeating the same process, the group of the box-shaped blocks are stacked up until necessary number of stages is attained. Appropriate vegetation is then applied to the inside of the box-shaped blocks 1 on each of the stages.

Description

[Detailed Description of the Invention] Industrial Field in Icheon> The present invention relates to a method of constructing a prefabricated retaining wall in which retaining walls are constructed by sequentially stacking retaining walls from the ground side.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a construction method for a prefabricated retaining wall that allows for vegetation and has excellent construction properties.

Structure of the Present Invention> Hereinafter, an embodiment of the present invention will be described with reference to FIG. 1. First, a box block 1 used in construction will be described.

<A> Box block The box block 1 is a component of a retaining wall, and is, for example, a box having a rectangular overall shape and an open top.

The box block 1 is made of concrete 1, hard clear resin, or the like.

The size and M amount of the box block l are determined in consideration of handling and transportation by workers.

Next, the construction method will be explained.

<A> Assembly of the first stage of box blocks After the foundation concrete 2 is constructed, a group of box blocks are placed side by side in a horizontal row on the upper surface of this foundation concrete 2.

When arranging box blocks 1 in parallel, spaces are created as little as possible between the side surfaces of adjacent groups of box blocks 1.

<Exit> Inserting vegetation soil Vegetation soil 3 is introduced into each box block 1 in the first stage.

<C> Backfilling Next, backfilling soil 4 is poured into the space on the back side of the first group of box blocks through chestnut stone or directly and compacted.

The height of the backfilling earth and sand 4 is approximately equal to the upper end of the first group of box blocks.

<2> Assembling the second stage Stack another group of box blocks horizontally on top of the first group of box blocks to assemble the second stage.

Each box block 1 in the second tier is the same as the box block 1 in the first tier.
.

Then, the vegetation soil 3 is put into the first group of box blocks in the second stage.

Next, in the same way as the first stage, backing earth and sand 4 is poured into the space between the rows of the second stage box blocks 1 up to the height of the second stage box blocks 1 and compacted.

From here on, the third and subsequent stages are stacked up one by one using the same procedure.

Kuho〉Integrated structure of box blocks at each stage If the box blocks 1 are simply piled up, the earth pressure of the backing earth and sand 4 acting on the back surface of the group of box blocks 1 at each stage will cause the box blocks LP1 to may collapse.

Therefore, one group of box blocks in each stage should be aligned vertically (up and down).
to deal with this pressure.

The following method can be adopted to vertically integrate one group of box blocks in each stage.

That is, bolts or prestressed steel materials are passed through and fastened in the vertical direction between the box blocks 1, 1 in the vertical relationship, or the case blocks 1, 1 in the vertical relationship are contact surface,
That is, the top surface of the lower side box block ■ and the bottom surface of the lower side box block l are provided with 7 protrusions and recesses, and the bottoms of these unevennesses are aligned to integrate one group of box blocks in each stage in the vertical direction. become

In order to integrate the first group of box blocks in each stage in the vertical direction, known integration means other than those exemplified above may be employed.

In addition, when the inclination of the first group of box blocks in each stage is gentle, the work of vertically integrating the first group of box blocks may be omitted.

(F) Since the group of box blocks of each stage of vegetation is stacked up in a stepwise manner, the front part of the vegetation soil 3 of each stage is exposed.

Vegetation is grown on the exposed vegetation soil 3 of each box block 1.

Vegetation work can be done all at once at the end, or at each stage.

Incidentally, the vegetation soil 3 mixed with seeds may also be used.

<Other Examples 1> Generally, the stability of a retaining wall is greatly influenced by the shear strength of the earth and sand on the back side of the retaining wall.

Therefore, if the soil quality is changed by mixing powdered cement into the backfill soil 4, etc., the stability of the retaining wall made of the box blocks In will be further improved.

In addition, as shown in Figure 2, box block 17 of each stage
It is also possible to improve the stability of the retaining wall by connecting resistance materials 5 such as steel bands or W4 rods to the surface and embedding each resistance material 5 in the horizontal direction.

<Other Embodiment 2> As shown in FIG. 3, the construction may be carried out by assembling the box blocks 1rrr of each stage one step apart.

In the case of this embodiment, the box block 1 ff that protrudes forward
There will be vegetation on f.

Further, as in the first embodiment, cement may be mixed into the backfill soil 4, or a resistance material 5 may be used.

<Effects of the Present Invention> Since the present invention is as explained below, the following effects can be obtained.

<B> Greening is possible even though it is a retaining wall.

<mouth> The box block is easy to transport and handle, and can be safely constructed even on sites with poor footing or at high places.

[Brief explanation of drawings]

Figure 1: An explanatory diagram of the construction method according to the present invention, a partially broken perspective view of a retaining wall. Figure 2: An explanatory diagram of an example in which resistance materials are buried in backfilling soil. Figure 3: Box. Cross-sectional view of body blocks stacked vertically

Claims (1)

[Claims] (1) Arrange box blocks with open tops in a row horizontally, pour earth and sand into each box block in the first tier, then fill it into the back of the first tier group of box blocks, A construction method for an assembled retaining wall in which a retaining wall is formed by assembling a group of box blocks one after another on top of the main box block, and vegetation is planted inside the box blocks at each stage.