JPH05339954A - Construction method for block stacked retaining wall and stacking block - Google Patents

Abstract

PURPOSE:To perform automatic formation of a drain hole by a method wherein one drain hole formed extending through blocks, stacked in a vertically and laterally adjoining state, and through synthesization of half-division grooves is freely formed without being constrained by the length and the width of a block. CONSTITUTION:A foundation angle regulating surface 2 is formed on a continuous footing 11 and the laying surface of stacked blocks 4 is formed according to the inclination angle of a sheathed ground 3. A through-hole 5 is formed throughout a portion ranging from the central part of the bottom of the stacked blocks to the midpoint of the upper edge of a back and half-division grooves 6 are formed in the two sides of the block and throughout a portion ranging from the midpoint of the side of the upper surface of the block to the lower edge of a front. Stacking is executed in a way that back filling at each stage is effected as synthesization of the half-division grooves 6 and intercommunication of the through-holes 5 are combined together. This method forms a drain whole by stacking itself of the blocks and improves the efficiency of both a work and a cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a block retaining wall for protection of slopes such as retaining soil on excavated slopes on excavated roads, revetment of canals and rivers, and a loading block used for the same. 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 with 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 space 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 drain 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 the construction of this retaining wall in the 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 section from the sloping ground to support the slope.

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

In particular, in the case of a rectangular parallelepiped block which is piled up at an inclination 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 problems, the present invention penetrates or combines a plurality of blocks which are vertically, horizontally and adjacently adjacent to each other 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 piled up, the blocks to be piled up 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. By forming a predetermined through hole forming portion, the water draining hole of the retaining wall is formed by the combination thereof.

[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 drain hole discharges rainwater and the like, it must naturally descend by a certain angle. However, the descending angle of the drain 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.

[0012] As the length from the backfill ground to the slope, that is, the length of the stay becomes 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 is penetrated through a plurality of blocks which are vertically and horizontally adjacent to each other and particularly vertically penetrated,
Alternatively, if they are formed by combining them, the vertical width of the block does not restrict the descending angle of the water drain hole,
It is possible to secure a free descending angle of the water draining 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 midpoint of the upper edge of the back surface, and further penetrating from the midpoint 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.

These 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 in the center of the bottom surface of the block 4C stacked on the block 4 and the adjacent block 4A. From the part to the 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 edging edge in a frame type, 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. Needless to say, 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 the cavities 7 provided in the stacking blocks are inserted and the blocks are arranged, the retaining walls are supported as supporting reinforcing bars of the wall body. .

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

[0023]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, it is possible to surely perform the water draining hole which has conventionally required a complicated construction and a curing period by using a vinyl pipe or the like by stacking the blocks themselves, and yet the width of the block is narrow. Since a very strong retaining wall can be constructed by taking a wide area, there is an effect of improving 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 composite / communication relationship of water drainage holes by omitting a structure such as a front pattern and a cavity.

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 groove 7 Block cavity 8 Backfill 9 Filter Front of S block

Claims (3)

[Claims] 1. A block for constructing a slope for forming a slope by 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 back 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 combining them together. 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 back 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 portion of the block bottom surface of the block loaded on the block and the adjacent block to the rear surface. Through-holes, each of which has a block having half-hole grooves configured to communicate with a through-hole penetrating to the midpoint of the edge, provided on each side of the block so that the through-hole formation portion communicates with the slope from the backfill layer 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