JPH0735657B2 - Block stacking wall construction method and stacking 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 method of constructing a block retaining wall for protection of slopes such as retaining soil on excavated slopes on excavated roads and revetment of canals and rivers, and a loading block used therefor. It is a thing.

[0002]

2. Description of the Related Art Conventionally, retaining walls for retaining soil on excavated slopes, canals, revetments of rivers, etc. cannot be handled by ready-made concrete blocks that have a short reserve to support slopes from sloping ground due to strength requirements. , Often by cast-in-place concrete.

In addition, the length of the portion for supporting the slope becomes long, and in order to maintain the descending angle for draining rainwater and the like that penetrates into the ground from the slope, a long vinyl pipe is supported at a predetermined position for the drainage hole. By pouring concrete into
A long vinyl pipe embedded in concrete
It is still used as a drain hole.

[0004]

[Problems to be Solved by the Invention] The conventional construction of a retaining wall using cast-in-place concrete requires a lot of manpower and many days for concrete curing, such as supporting long vinyl pipes and assembling formwork. However, due to the current lack of manpower and frequent traffic conditions, it is not possible to deal with such construction.

Further, in order to cope with this retaining wall construction in a precast concrete block, it is necessary to form a drain hole in the concrete block.
In order to make a concrete block that retains sufficient strength as a retaining wall, it is necessary to take a long portion from the sloping ground to hold the slope.

[0006] However, if the length of the block is set to be long, it becomes impossible to fit the inclination angle descending from the slope ground to the front of the drainage hole opening on the slope into one block, and another water A method for forming a hole must be taken.

In particular, in the case of a rectangular parallelepiped block which is piled up in an inclined manner with the slope facing upward and descending backward, if the block is simply provided with a water draining hole, the water draining hole will face upward during loading. Instead of draining, rainwater will be injected into the foundation ground.

[0008]

In order to solve the above-mentioned problems, the present invention penetrates or combines a plurality of blocks which are vertically, horizontally and adjacently stacked to form one drain hole. It is configured to be freely formed without being restricted by the length or width of the block.

That is, depending on each position where the blocks are stacked, the blocks to be stacked are constructed so that when the stacking is completed, they descend from the rear surface of the upper block at a drain angle and form a drain hole communicating with the slope of the lower block. A predetermined through hole forming portion is formed by the above, and the combination thereof is used to form the water draining hole of the retaining wall.

[0010]

The external force acting on the wall of the retaining wall is the weight of the wall itself and the earth pressure. If rainwater or the like that permeates the foundation ground is not discharged, the wall is pressed against the wall and collapses. Therefore, a drain hole for discharging permeating rainwater is required on the slope of the wall.

Since the drainage hole discharges rainwater and the like, it must naturally descend by a certain angle, but the descending angle of the drainage hole formed in one block is such that the through hole passing through the diagonal line is This is the limit, and if the blocks themselves are installed in a supine position when piled up, the descending angle of the water draining hole is reduced by that amount, and eventually they become horizontal or supine.

As the length from the backfilled ground to the slope, that is, the length of the stay is longer with respect to the thickness of the block, the diagonal angle of the side surface of the block becomes closer to horizontal and the drainage angle cannot be maintained. become unable.

One water drain hole penetrates a plurality of blocks which are vertically and horizontally adjacent to each other, and particularly vertically penetrates,
Alternatively, if the blocks are formed synthetically, the vertical width of the block does not restrict the descending angle of the drainage hole,
It is possible to secure a free descending angle of the drainage hole that takes into account the elevation angle when the blocks are stacked.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a cloth foundation that adjusts the foundation angle so that a block slope is formed corresponding to a predetermined retaining wall inclination angle. Built in-situ or in parallel with preconditioned basic blocks.

Reference numeral 2 denotes a foundation angle adjusting surface of the cloth foundation 1, which constitutes a laying surface of the loading block 4 in accordance with the inclination angle of the soil retaining ground 3.

The stacking block 4 is provided with a through hole 5a penetrating from the central portion of the bottom surface to the middle point of the upper edge of the rear surface, and further pierces from the middle point of the side edge of the upper surface of the block to the lower edge of the front surface. Split hole grooves 6a, 6b are formed on both side surfaces.

The half-divided hole grooves 6a and 6b are formed in the block 4A adjacent to the block 4 and the half-divided hole grooves 6c and 6b.
The holes 6d provided in 4B are combined with each other to form one through hole, and the through hole is formed at the center of the bottom surface of the block 4C stacked on the block 4 and the adjacent block 4A. From the part to a through hole 5b penetrating to the midpoint of the upper edge of the back surface.

On the front surface S of the block 4 constituting the retaining wall slope, if necessary, a pear-skin pattern is applied in the frame-shaped edging edge, or the retaining wall slope is a pseudo-stone wall by a stone wall type pattern or combination. The stone wall-shaped unevenness is formed so that

The relationship between the block 4 and the blocks 4A, 4B, and 4C is established as a chain between the blocks, except for the bottom row, the top row, and the row of blocks on both sides. Of course, the drainage holes of this structure may be provided only in a specific part without being chained to the whole, or the drainage holes may be formed not only in two stages but also through blocks of several stages.

Block 4, block 4A, block
Regarding the adjoining relationship between the blocks 4B, the blocks 4C, etc., it is more efficient if the blocks are accurately joined by providing a fitting portion with appropriate unevenness on the joining surface.

Anchorings are planted and arranged at a predetermined interval on the cloth foundation 1, and after inserting the cavities 7 provided in the stacking blocks to arrange the blocks, the retaining walls are supported as supporting reinforcing bars of the wall body. .

The block stacking arrangement is such that, while combining the synthesis of the above-mentioned half-grooves 6 and the communication of the through-holes 5, crushed stones, crushed stones, etc. are backfilled between the sloping ground and the blocks for each step and compacted water. A filter is provided in the opening on the ground side on the back side of the drainage hole to prevent the debris from being sucked into the drainage hole and clogging the hole.

[0023]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, it is possible to surely perform a drainage hole which has conventionally required complicated construction and a curing period with a vinyl pipe or the like by stacking the blocks themselves, and yet the width of the block is narrow. Since it is possible to construct a very strong retaining wall by taking a wide area, there is an effect of increasing efficiency in terms of both work and cost.

[0024]

[Brief description of drawings]

FIG. 1 is an overall explanatory view showing a construction state of block stacking with a retaining wall as a side section.

FIG. 2 is a perspective perspective view of a block stacking portion showing a composition / communication relationship of drain holes by omitting the structure of a front face, a cavity, and the like.

FIG. 3 is a single perspective view of a basic stacking block.

[Explanation of symbols]

 1 Fabric foundation 2 Foundation angle adjustment surface 3 Soil retention ground 4 Stacking block 4A, 4B, 4C Adjacent block 5a, 5b Through hole 6a, 6b, ... Half groove 7 Block cavity 8 Backfill 9 Filter Front of S block

Claims (3)

[Claims] 1. A block for forming a slope by forming a cloth foundation for adjusting a foundation angle so that a block slope is formed corresponding to a predetermined retaining wall inclination angle, and stacking on the cloth foundation to form a slope, When the stacking is completed, a predetermined through hole forming part is formed according to each position to be built up so as to form a drain hole that descends from the rear surface of the upper block with a drain angle and communicates with the slope of the lower block. And constructing a water retaining hole for the retaining wall by the combination of the two. 2. A through hole penetrating from the central portion of the bottom surface of the block to the midpoint of the upper edge of the rear surface is further formed, and further penetrates from the midpoint of the side edge of the upper surface of the block to the lower edge of the front surface to form a recess, thereby adjoining the adjacent loading block. One through hole is formed by combining with the half hole groove provided, and the through hole is formed from the central part of the block bottom surface of the block to be stacked on the block and the adjacent block to the rear surface. A block having on both sides a half-groove groove configured to communicate with a through hole penetrating to the midpoint of the edge, and a through hole forming portion provided in each block communicates with the slope from the backfill formation The method for constructing a block stack retaining wall according to claim 1, wherein the slope is formed by stacking on a cloth foundation so as to be combined with 3. A through hole penetrating from a central portion of the bottom surface of the block to a middle point of an upper edge of the back surface, and a half-hole groove which is recessed and penetrates from a middle point of a side edge of the upper surface of the block to a lower edge of the front surface on both sides. Stacking block characterized by being provided