JP2972078B2 - Retaining wall construction method using blocks with adjustable slope - 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 for constructing a retaining wall using a block for setting a gradient of a retaining wall block used for stabilizing a slope of cut or embankment.

[0002]

2. Description of the Related Art Conventionally, when concrete blocks used for constructing retaining walls, seawall retaining walls, etc. are piled up from a foundation portion, conventionally, the upper surface of the foundation concrete is finished to a slope perpendicular to the angle of the slope, Blocks were stacked on the foundation concrete.

[0003]

However, in such a slope setting method, there are the following problems in order to finish the angle of the upper surface of the foundation concrete to a predetermined angle.

[0004] Conventional slope surfaces of foundations cannot be constructed without a stone or other intervening material between the foundation and the blocks when the blocks are laid because concrete is dropped due to the iron finish and the concrete is not finished smoothly. For this,
At present, the blocks are floating from the foundation, and do not have the structure according to the design document.

[0005] When the foundation is made, it is very troublesome due to the presence of the slope surface.

[0006] When installing the root stone portion of the block on the foundation, it is dangerous because it is installed on a slope, and it is very troublesome to lay an inclusion.

The problem to be solved by the present invention is to provide a retaining wall construction method using a slope-settable block that can cover the construction of a slope in a predetermined range with only one type of block.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a block body on which a retaining wall block is stacked. Is a method of building a retaining wall using a slope setting free block provided with low legs, on a foundation laid with concrete or crushed stone formed on a horizontal surface,
If the slope of the retaining wall is the same as the maximum slope of the block body,
The slope of the retaining wall is higher than the maximum slope of the block body.
In the case of a standing slope, a liner with a thickness corresponding to the slope
Setting the block body by laying a base under the legs on the rear side , then assembling a temporary frame around the front and rear of the block body, casting concrete to fix the block body, A series of retaining walls are constructed by stacking retaining wall blocks on the upper surface of the block body.

[0009]

The slope setting adjustable block of the present invention is laid on a concrete or crushed stone foundation finished in a horizontal plane. Then, since the heights of the legs are different between the front and rear of the bottom surface of the block main body, the block main body is laid in an inclined state. When the gradient is the largest when nothing is laid on the rear leg, and when the gradient is reduced (close to vertical), a rug having a predetermined thickness (for example, steel or composite) is attached to the rear leg. (Made of resin) or an appropriate stone is laid so as to have a desired slope. A predetermined retaining wall is constructed by stacking retaining wall blocks thereon.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to embodiments. FIG. 1 is a front view showing an embodiment of a gradient setting block used in the method of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view thereof.

In these figures, on the bottom surface of the block body 1, two legs 2 project forward and one leg 3 projects rearward. The front leg 2 is high and the rear leg is high. The portion 3 is formed to have a low height. The shape of the legs 2 and 3 viewed from the side is almost a quadrilateral, but the block body 1
The side facing the bottom surface is inclined so as to be substantially the same plane at the time of the maximum gradient. In this example, the maximum gradient is 5 minutes. This is because a standard river wall retaining wall is based on one of three, four, and five minutes, and a road stone wall is based on five minutes. Therefore, even when the maximum gradient is 5 minutes, the block main body 1 can stand alone at the three points of the legs 2 and 3.

The front end portion 2a of the front leg portion 2 is formed in an arc shape so that a portion in contact with a concrete or crushed stone base surface can receive a load without difficulty when the gradient is varied. In the figure, reference numeral 4 denotes a hole for inserting a reinforcing bar, and reference numeral 5 denotes a pin hole for attaching a conical connecting pin on both sides.

Next, a method of constructing a retaining wall using the blocks of this embodiment will be described. As shown in FIG. 4, the block main body 1 is set on a foundation 10 laid with concrete or crushed stone formed on a horizontal plane. At this time, if the slope of the retaining wall is the same as the maximum slope of the block main body 1, the setting is performed as it is. However, in the case of a slope that stands up from the maximum slope, as shown in FIG. Lay the liner base 6 under the rear leg 3. The liner base 6 is made of steel or synthetic resin, but may be replaced by a stone of an appropriate size. Next, a temporary frame 11 is assembled so as to surround the front and rear of the block main body 1, and concrete 12 is cast to fix the block main body 1.

A connecting pin 7 is inserted into the pin hole 5 on the upper surface of the block main body 1, and the connecting pin 7 is used as a guide to stack the retaining wall blocks 13 as shown in FIG. 5 to construct a series of retaining walls. .

The back face of the retaining wall block 13 is formed with a backfilling stone layer in advance, and the backfill concrete is poured into a gap between the backfilling stone and the back face of the retaining wall block 13. And finish the retaining wall.

[0016]

As described above, according to the present invention, the following effects can be obtained.

By providing the legs at the lower part of the block, a set gradient can be set on a concrete or crushed stone flat foundation. Therefore, it is not necessary to finish the iron on the concrete foundation with a trowel, so that labor can be saved and the construction period can be shortened.

[0018] Even if the set gradient is set to 5 minutes, the gradient settable block is self-supporting and stable, so that no other inclusions are required.

After the block is installed, the concrete of the foundation portion is struck, so that the foundation and the block come into close contact with each other to form a structure as expected.

Since the foundation portion and the block stones can be arranged in one step, it can be performed in about half the number of days and labor of the conventional method.

[Brief description of the drawings]

1 is a front view showing an embodiment of a gradient setting universal blocks used in the method of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a side view showing a method of constructing a block according to the present invention.

FIG. 5 is a front view showing an example of a retaining wall constructed using the slope setting free block of the present invention.

[Explanation of symbols]

1 block body, 2 front legs, 3 rear legs, 4
Hole for reinforcing bar insertion, 5 pin hole, 6 liner base, 7
Connecting pin, 10 foundation, 11 temporary frame, 12 concrete, 13 retaining wall block

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁶ , DB name) E02D 29/02 301

Claims (1)

(57) [Claims] 1. A block using a tilt-settable block provided with a leg having a high height on the front side and a low height on the rear side on the bottom surface of the block body on which the retaining wall block is stacked. This is a wall construction method, in which the slope of the retaining wall is the same as the maximum slope of the block body on a concrete or crushed stone foundation laid on a horizontal surface.
If it is the same, the slope of the retaining wall is the maximum of the block body
If the slope is more upright than the slope, the thickness corresponding to the slope
The block main body is set by laying the liner base under the legs on the rear side , and then a temporary frame is assembled so as to surround the front and rear of the block main body, and concrete is poured to fix the block main body. Fixing, stacking a retaining wall block on the upper surface of the block body,
A method for constructing a retaining wall using a slope-adjustable block, comprising constructing a series of retaining walls.