JPH08311892A - Heaping block for retaining wall - Google Patents

Abstract

PURPOSE: To significantly reduce the construction period by heaping up a plurality of stages of blocks so as to be self-retained at the time of construction work. CONSTITUTION: A heaping block 1 for a retaining wall is of nearly a rectangular shape of a prescribed thickness, and is consisted of a wall surface body part 2 whose upper and lower end surfaces 2u, 2d have been formed in flat surfaces, and leg body parts 3 extended backward from the rear surface of the wall surface body part 2. On the upper end surface in the positions where the wall surface body part 2 and the leg body parts 3 are fitted, upper end fitting recessed parts 4 of a given depth are formed, and in continuation therewith both in the front position and in the rear position of the upper end fitting recessed parts 4, upper end fitting projected parts 5, 6 are formed respectively, and also on the lower end surface in the positions where the wall surface body part 2 and the leg body part 3 are fitted, lower end fitting projected parts of a shape capable of being fitted to the upper end fitting recessed parts 4 are formed respectively. Further, both in the front positions and in the rear positions of the lower end fitting projected parts, lower end fitting recessed parts of a shape capable of being fitted to the upper end fitting projected parts 5, 6 are continuously formed respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stacking block used for constructing a retaining wall, and more particularly to a stacking block for a retaining wall which can be stacked on a plurality of stages to be self-supporting during construction.

[0002]

2. Description of the Related Art Conventionally, for construction of retaining walls such as revetment work, earth retaining work, etc., for example, the construction method shown in the front view of FIG. 5 and the sectional view of FIG. 6 has been adopted. First, the embankment 20 is shaved at a constant slope to form an excavation slope 21, and a flat land 22 at the lower end of the excavation slope 21 is provided with a groove 23 along the retaining wall length direction at a predetermined depth. To form. And this groove 2
The base of the retaining wall is made by laying the stones 24 in 3 in a certain thickness and rolling them, and then placing a fresh concrete in the formwork (not shown) divided by the site construction. 25 is formed.

Next, after waiting for the completion of the foundation 25, first, as a first step, for example, a predetermined number of rectangular-shaped stacking blocks 26 are aligned and arranged in a horizontal row on the upper surface thereof, and the back surface thereof. The lining stones 27 are laid on the side, and the gaps between the stacking blocks 26 are filled with the barrel concrete 28 for fixing the stacking blocks 26.

After constructing the first stage in this way,
By constructing the second stage using the same construction method, and then repeating this process, the third and fourth stages are sequentially stacked up to the desired retaining wall height.

[0005]

However, in such a retaining wall construction work, the arrangement of the stacking blocks 26 and the filling of the backside crushed stones 27 and the barrel concrete 28 on the back side thereof are performed for each step. Construction tended to take longer. Since each of the stacking blocks 26 at the time of construction is simply placed on top of each other, it is impossible to stack multiple stages at the same time without fixing with the concrete sill due to the stability of the blocks and the safety of the construction. It was

Therefore, the present invention has been made by paying attention to the above-mentioned problems, and the purpose thereof is to stack a plurality of steps at the time of construction for self-sustaining, and to fill them with concrete and to fix them at the same time. By doing so, it is intended to provide a retaining block for a retaining wall that can significantly reduce the construction period.

[0007]

In order to achieve the above object, the retaining wall stacking block of the present invention is constructed as follows.

That is, the front surface having a predetermined thickness has a substantially rectangular shape, and the upper and lower end surfaces (2u, 2d) are formed into flat surfaces, and the wall surface portion (2) is formed. One or more leg parts (3) extending rearward from the back surface (2b) at substantially the same height as the wall surface part (2) and with an appropriate lateral width.
In the retaining wall stacking block (1), the upper end fitting having a certain depth is fitted to the upper end surface (2u) of the mounting position of the wall surface body portion (2) and the leg body portion (3). A fitting recess (4) is formed, and upper end fitting projections (5, 6) are continuously formed at the front position and the rear position of the upper end fitting recess (4), respectively,

A lower end fitting convex portion having a shape capable of fitting with the upper end fitting concave portion (4) on the lower end surface (2d) at the mounting position of the wall surface body portion (2) and the leg body portion (3). (7) is formed, and at the front position and the rear position of the lower end fitting convex portion (7), the lower end fitting concave portion (8) having a shape capable of fitting with the upper end fitting convex portion (5, 6) is formed. , 9) are continuously formed.

Further, the shapes of the upper end fitting concave portion (4), the upper end fitting convex portion (5, 6), the lower end fitting convex portion (7), and the lower end fitting concave portion (8, 9) are truncated. It is a pyramid, the side surfaces (4f, 4b) of the upper fitting recess (4) and the upper fitting projection (5, 6).
And the side surfaces (5s, 6s) of the lower end fitting convex portion (7) and the side surfaces (8s, 9s) of the lower end fitting concave portion (8, 9). The feature is that they are arranged so as to be continuous.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific examples of a retaining wall stacking block according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing the whole of this embodiment,
FIG. 2 is a side view showing a notched vertical section of a main part of the present embodiment, and FIG. 3 is a vertical cross-sectional perspective view showing a fitting state of the main part. The retaining wall stacking block 1 (hereinafter abbreviated as “block”) is mainly composed of a wall surface portion 2 and a leg portion 3. The front surface of the wall body 2 has a substantially rectangular shape (a rectangular shape in this embodiment) and is formed to have a constant thickness, and a flat surface is formed on an upper end surface 2u and a lower end surface 2d thereof. .

The leg body portion 3 is arranged so as to extend rearward from the rear surface 2b side of the wall surface body portion 2, and its form has the same height as that of the wall surface body portion 2 and has a predetermined shape. It has a lateral width and is formed by projecting at a right angle to the wall surface body portion 2 having a constant length. In this embodiment, the leg bodies 3 are attached at two places with a constant space. In addition, this leg part 3
In accordance with the width of the wall body 2, the number of the wall bodies 2 is appropriately increased or decreased. Further, the extension length of the leg body portion 3 is also appropriately selected depending on the size of the wall surface body portion 3 in consideration of its stability.

Next, the feature of the present invention is that fitting means are formed on the upper and lower end surfaces 2u, 2d of the mounting positions of the wall surface portion 2 and the leg portion 3, which will be described.

First, in the vicinity of the base of the leg portion 3 of the upper end surface 2u, an upper end fitting concave portion 4 having a constant depth and having a space shape recessed into a truncated quadrangular pyramid is formed. Further, an upper end fitting convex portion 5 protruding in a truncated quadrangular pyramid shape is formed at a front position (front direction) of the upper end fitting concave portion 4 so as to be continuous with the upper end fitting concave portion 4. Further, at the rear position of the upper end fitting concave portion 4, an upper end fitting convex portion 6 having an abutting surface 6s in which the upper rear end of the leg portion 3 projects obliquely rearward is formed so as to be continuous therewith. .

Here, "continuous" means that the side surfaces (5s and 4f, 4b and 6s) of the upper end fitting convex portion 5, the upper end fitting concave portion 4, and the upper end fitting convex portion 6 which face each other, respectively. Means that they are arranged in series. The same applies to the following.

Next, in the vicinity of the base of the leg portion 3 of the lower end surface 2d, a shape which can be fitted in correspondence with the upper end fitting convex portion 5, the upper end fitting concave portion 4 and the upper end fitting convex portion 6 is formed. The fitting portion configured in the above is formed. That is, a lower end fitting convex portion 7 having a shape (a truncated quadrangular pyramid) that can be fitted to the upper end fitting concave portion 4 is formed, and the upper end fitting convex portion 7 is located in front of the lower end fitting convex portion 7. 5, a lower end fitting concave portion 8 having a shape (a truncated quadrangular pyramid) that can be fitted with 5 is continuously formed. Further, at the rear position of the lower end fitting convex portion 7, a lower end fitting concave portion 9 having a contact surface 9s in which the lower rear end of the leg portion 3 is obliquely removed rearward is formed so as to be continuous with the lower end fitting convex portion 7. ing.

In the above-mentioned fitting portion (4-9),
Of course, the arrangement on the upper end surface 2u and the lower end surface 2d may be reversed. The shape of these truncated quadrangular pyramids is selected from the viewpoint of formability and ease of fitting and disengaging, and is not limited to this shape.

[Retaining Wall Construction and Operation of this Embodiment] This embodiment constructed as above is constructed as follows.
First, the base block 10 in which the fitting portion 11 conforming to the shape of the lower end fitting portion (7 to 9) is formed on the top surface of the base block 10 is arranged in the groove 23 described in the conventional method. Then, as the first step, in the fitting portion 11 of the basic block 10,
The lower end fitting portion (7 to 9) of the block 1a is fitted and fixed.

Next, the fitting portions (4 to 6 and 7 to 9) are fitted to the upper end surface 2u of the block 1a, and the second stage block 1b is placed. Further, the third-stage block 1c is placed on the upper end surface 2u of the second-stage block 1b by the same method.

2 and 3, the front side surface 7f of the lower end fitting portion (7 to 9) and the slope 8s continuous with the front side surface 7f are the front side surfaces of the upper end fitting portion (4 to 6). Four
The rear side surface 7b and the sloping surface 9s continuous with the rear side surface 7b contact the upper end fitting portion (4 to
6) It abuts on the rear side surface 4b and the inclined surface 6s continuous with the rear side surface 4b. Since the blocks 1 are brought into contact with each other in this manner, the block 1 placed on the upper part is prevented from swinging in the front-rear direction and can be held in a self-supporting manner.

In this way, a plurality of stages (3 in this embodiment)
It is possible to maintain the columns independently at one time (see FIG. 4). Further, by increasing the protruding length of the leg portion 3, it is possible to maintain the self-supporting state over three steps.

When an appropriate number of steps are self-supported, a lining stone slab (not shown) and a body lining concrete are provided between the back surface 2b of the wall body 2 and the cutting surface 21 as in the conventional method. By filling (not shown), a plurality of blocks (1a to 1c) can be fixed at one time.

[0024]

[Effects] Since the present invention is configured as described above,
It is possible to stack multiple stages of blocks and keep them self-supporting without filling the back-filled quarry stones and body-filled concrete for each stage, and then simultaneously perform the multiple-staged back-filled stones and body-filled concrete filling. Therefore, the retaining wall construction period can be significantly shortened.

Further, since fitting portions are formed on the upper end surface and the lower end surface of each block and the blocks are stacked in accordance with the fitting parts, it is not necessary to position and stack the blocks one by one, which also shortens the construction period. it can.

[Brief description of drawings]

FIG. 1 is a perspective view showing the whole of the present embodiment.

FIG. 2 is a side view showing a notched vertical section of a main part of the present embodiment.

FIG. 3 is a vertical cross-sectional perspective view showing a fitting state of main parts of the present embodiment.

FIG. 4 is a side view showing a part of a construction example of the present embodiment in a notched vertical section.

FIG. 5 is a front view showing a retaining wall according to a conventional construction method.

FIG. 6 is a vertical sectional view showing a retaining wall according to a conventional construction method.

[Explanation of symbols]

1 ... Retaining wall stacking block 2 ... Wall surface part 2b ... Rear surface 2u ... Upper end surface 2d ... Lower end surface 3 ... Leg part 4 ... Upper end fitting recess 5 ... Upper end Fitting convex part 6 ... Top fitting convex part 7 ... Bottom fitting convex part 8 ... Bottom fitting concave part 9 ... Bottom fitting concave part 10 ... Basic block 11 ... Fitting part

Claims (2)

[Claims] 1. A wall surface body portion (2) having a front surface of a substantially rectangular shape having a predetermined thickness and upper and lower end surfaces (2u, 2d) formed into flat surfaces, and a wall surface body portion (2) of the wall surface body portion (2). In a retaining wall stacking block (1) comprising one or more leg bodies (3) extending rearward from the back surface (2b) at substantially the same height as the wall surface body portion (2) and with an appropriate lateral width. An upper end fitting recess (4) having a constant depth is formed on the upper end surface (2u) of the mounting position of the wall surface body (2) and the leg body (3), and the upper end fitting is formed. The upper end fitting protrusions (5, 6) are continuously formed at the front position and the rear position of the fitting recess (4), and the wall body (2) and the leg (3) are attached. A lower end fitting convex portion (7) having a shape capable of fitting with the upper end fitting concave portion (4) is formed on the lower end surface (2d) of the position, and A lower end fitting concave portion (8, 9) having a shape capable of fitting with the upper end fitting convex portion (5, 6) is continuously formed at a front position and a rear position of the fitting convex portion (7). Retaining wall stacking block. 2. The shape of the upper fitting recess (4), the upper fitting projection (5, 6), the lower fitting projection (7), and the lower fitting recess (8, 9) is truncated. It is a pyramid, the side surfaces (4f, 4b) of the upper fitting recess (4) and the upper fitting projection (5, 6).
And the side surfaces (5s, 6s) of the lower end fitting convex portion (7) and the side surfaces (8s, 9s) of the lower end fitting concave portion (8, 9). 2. The retaining wall stacking block according to claim 1, wherein the retaining blocks are arranged so as to be continuous.