JP2920856B2 - Precast retaining wall assembly 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 precast retaining wall assembly block.

[0002]

2. Description of the Related Art This type of retaining wall is usually constructed of cast-in-place concrete. However, since the cast-in-place construction requires a great deal of labor for setting up concrete placement, a long concrete curing period is required after casting. . For this reason, an L-shaped precast concrete retaining wall member is factory-manufactured, and a precast L-shaped retaining wall to be carried into the site is constructed.

[0003]

The construction method using the L-type precast concrete retaining wall member has an advantage that the back surface can be back-filled immediately after the installation of the block, so that the construction speed is fast, but one block is large. It is heavy and it is limited by loading into the site and using large hoists, etc.
There is a problem in workability.

[0004] The present invention has been proposed in view of the above-mentioned problems of the prior art, and the object thereof is to achieve both a reduction in construction costs and a drastic simplification of construction, thereby improving work safety. An object of the present invention is to provide a precast retaining wall assembly block that can be secured and does not stain the retaining wall.

[0005]

In order to achieve the above-mentioned object, a precast retaining wall assembly block according to the present invention comprises a precast retaining wall for forming a retaining wall by laminating hollow blocks having hollow portions penetrating vertically. In the wall building block,
A concave portion having a vertical rib and a horizontal rib is provided on the left and right outer surfaces of each of the hollow blocks, a vertical front bulging portion is provided at a front end of the concave portion, and a vertical rear bulging portion is provided at a rear end of the concave portion. A projecting portion is protruded, and when the hollow blocks are stacked in the vertical direction and the width direction to form a concrete body between hollow blocks adjacent to each other in the width direction, the inside of the rear bulging portions facing each other is formed. A vertical drainage material that also serves as a vertical frame is disposed on the side surface, and a spring water treatment section for treating back spring water is formed between the rear bulging portions.

[0006]

According to the present invention, there is provided a precast retaining wall assembly block for constructing a retaining wall by laminating a cavity block having a cavity portion vertically penetrated as described above. A concave portion having a rib is provided, a vertical front bulging portion protrudes from a front end of the concave portion, a vertical rear bulging portion protrudes from a rear end of the concave portion, and the hollow block is vertically moved. And vertical drainage material that also serves as a vertical frame over the inner surface of the rear bulging portion facing each other when the concrete body is formed between hollow blocks adjacent in the width direction by being assembled in the width direction. In the construction, the vertical drainage material that also serves as the abandoned formwork eliminates the need for a formwork on the back side, eliminating the need for crushed stones required for drainage. Is greatly simplified.

In addition, since the vertical drainage material also serves as a vertical frame over the inner surface of each of the rear bulging portions, the work of arranging the vertical drainage material also serving as the vertical frame and the casting of the concrete body are performed. The work can be performed from the inside of the hollow block before filling with the filling material, and the work is protected from danger due to the boulders from the back side and the safety of the work is ensured.

In addition, a vertical drainage material that also serves as a mold frame is disposed vertically over the inner surface of each of the rear bulging portions, and a spring water treatment section for processing rear spring water between the rear bulging portions. After the construction, the backwater is treated by the spring treatment section after the construction, so that little water flows out to the front of the retaining wall and the retaining wall is not stained.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. A is a hollow block for forming a retaining wall, and the hollow block A
Has a rear width smaller than the front width, a concave portion 1 provided on the outer surface, a front bulging portion 2 perpendicular to the front of the concave portion 1 protruding, and a sealing groove 3 perpendicular to the bulging portion 2. Is provided. A vertical rear bulging portion 4 also protrudes from a rear portion of the concave portion 1, and further, a connection guide pin hole 5 and a block suspension anchor 6 are provided.

A vertical rib 7 is provided outside the center of the concave portion 1, and a pair of upper and lower horizontal ribs 7 'connected to the vertical rib 7 are provided at upper and lower ends of the concave portion 1, respectively. Water draining recesses 8 are provided on the front and rear of the top wall. Thus, a plurality of blocks A having different lengths are stacked on the foundation concrete 9, and a concrete body is formed between the blocks A adjacent to each other in the width direction. Each block A is filled with the crushed stone 10 to form a retaining wall. If necessary, a guide rail support 11 is erected on the uppermost block A 'via a foundation concrete 12.

FIGS . 5 and 6 show the joints of the blocks A adjacent to each other in the width direction .
A watertight packing 13 is fitted between the seal grooves 3, and a vertical drainage material 14 also serving as a vertical frame is disposed over the inner surfaces of the opposing rear bulges 4, 4. A spring treatment section for treating back spring is formed between the sections 4, and a concrete body 15 is cast between the recessed sections 1 to integrate the blocks A. In the figure, reference numeral 16 denotes a waterproof concrete, and reference numeral 17 denotes a foundation board.

A vertical rib 7 is disposed outside the center of the block A in the concrete body 15. The longitudinal ribs 7 increase the shear resistance generated during block sliding. Also, at the time of construction, the vertical formwork / vertical drainage material 14 disposed over the inner surfaces of the rear bulging portions 4 and 4 eliminates the need for a formwork on the back side and eliminates the need for crushed stone. The construction is greatly simplified. Also, after the construction, the back spring is treated by the spring treatment section, so that little water flows out to the front of the retaining wall, and the retaining wall is not stained.

In the drawing, reference numeral 18 denotes a water collecting groove provided in front of the retaining wall, and 19 denotes a core reinforcing bar arranged in the concrete body, and the core reinforcing bar 19 prevents slippage of each block A. You. Reference numeral 20 denotes a suction prevention material. Note that FIG.
Shows the case where the blocks A are laid so that the front surface of the retaining wall becomes a vertical surface, and FIG. 12 shows the case where the front surfaces of the retaining walls are laid in a stepwise manner. The stairs can be greened using the filled filling 21.

In the drawing, the same parts as those of the above embodiment are denoted by the same reference numerals. Also, since the back width of the block A is shorter than the front width, the inner curve portion can be constructed by utilizing the difference. 8 to 10 show another embodiment of the present invention, in which the front surface of the block A is formed on a rough surface in which a number of concave grooves and ridges are alternately arranged. The same parts as those in the above embodiment are denoted by the same reference numerals.

[0015]

According to the precast retaining wall, a retaining wall is constructed by laminating hollow blocks having hollow portions penetrating vertically.
Since the hollow block is lightweight, it is easier to handle one unit block than the conventional L-shaped block, and is excellent in workability. According to the present invention, in the precast retaining wall, a concave portion having a vertical rib and a horizontal rib is provided on the left and right outer surfaces of each of the hollow blocks, and a vertical front bulging portion protrudes from a front end of the concave portion. When a vertical rear bulging portion is projected from the rear end of the concave portion, and the hollow blocks are stacked in the vertical direction and the width direction to form a concrete body between adjacent hollow blocks in the width direction. Since the vertical drainage frame and vertical drainage material are disposed along the inner surface of the rear bulging portion facing each other, the construction on the rear side can be made unnecessary by the vertical drainage material and dual drainage material during construction. In addition, the crushed stones necessary for drainage can be eliminated, and the construction cost can be reduced, and the construction can be greatly simplified.

Further, since the vertical drainage material also serves as a vertical frame along the inner surface of each of the rear bulging portions, the work of arranging the vertical drainage material also serving as the vertical frame and the casting of the concrete body are performed. Work can be performed from inside the hollow block before filling with filling material, and you can protect yourself from danger due to boulders from the back side,
Work safety can be ensured.

Further, a vertical drainage material that also serves as a mold frame is disposed along the inner surface of each of the rear bulging portions, and a spring water treatment section for processing back spring water between the rear bulging portions. After the construction, the back spring can be treated by the spring treatment section after construction, so that little water flows out to the front of the retaining wall and the retaining wall is not stained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a precast retaining wall assembly block according to the present invention.

FIG. 2 is a plan view of the block.

FIG. 3 is a side view of the block.

FIG. 4 is a front view of the block.

FIG. 5 is a plan view showing a body concrete portion.

FIG. 6 is a perspective view of FIG. 5;

FIG. 7 is a longitudinal sectional view of a lower portion of a retaining wall.

FIG. 8 is a plan view showing another embodiment of the retaining wall assembly block according to the present invention.

FIG. 9 is a side view of FIG.

FIG. 10 is a front view of FIG. 8;

FIG. 11 is a longitudinal sectional side view showing one embodiment of a precast gravity retaining wall constructed by the block of the present invention.

FIG. 12 is a longitudinal sectional side view showing another embodiment of the gravity type retaining wall.

[Explanation of symbols]

 A Hollow block for retaining wall configuration 1 Recessed portion 2 Front bulge 3 Seal groove 4 Rear bulge 5 Connection guide pin hole 6 Block suspension anchor 7 Vertical rib 7 'horizontal rib 8 Drain recess 9 Basic concrete Reference Signs List 10 Crushed stone 11 Guide rail support 12 Foundation concrete 13 Waterproof packing 14 Vertical drainage material that also serves as a waste formwork 15 Body concrete 16 Waterproof concrete 17 Foundation board 18 Water collecting groove

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hiroshi Okada 4-16-15 Sendagaya, Shibuya-ku, Tokyo Inside Fujita Co., Ltd. 72) Inventor Hideki Yoshikawa 921-418, Iimu, Asa-cho, Hiroshima, Hiroshima Pref., Japan (56) References JP-A-53-140805 (JP, A) JP-A-52-45106 (JP, A) JP-A-3-128733 (JP, U) JP-A-61-10337 (JP, U) 50-35723 (JP, B2) (58) Fields investigated (Int. Cl. ⁶ , DB name) E02D 29/02

Claims (1)

(57) [Claims] 1. A precast retaining wall assembly block for forming a retaining wall by stacking hollow blocks having hollow portions penetrating vertically, a recessed portion having a vertical rib and a lateral rib on the left and right outer surfaces of each of the hollow blocks. A vertical front bulge at the front end of the concave portion, a vertical rear bulge at the rear end of the concave portion, and assembling the hollow blocks in the vertical and width directions. When the piled concrete portions are formed between the hollow blocks adjacent to each other in the width direction and stacked, vertical vertical drainage materials are also disposed over the inner surfaces of the rear bulging portions facing each other. A precast retaining wall assembly block, wherein a spring treatment section for treating back spring is formed between the rear bulges.