JP2832583B2 - Slope protection block and construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope protection block capable of safely constructing a retaining wall or the like and shortening the construction period, and a construction method thereof.

[0002]

2. Description of the Related Art In recent years, blocks for forming retaining walls and the like have become the mainstream in which the size of an outer surface plate is increased so that construction can be performed in a short period of time in response to a shortage of craftsmen. A conventional block is provided with a convex portion and a concave portion which are fitted to the upper and lower surfaces of the block. When constructing the blocks, first, the hanging positions of the hanging brackets are adjusted so that the outer surface plate is substantially parallel to the ground slope with the blocks being lifted, and the blocks are lifted one by one and stacked one by one. From the second stage, the block was supported by a pipe support or the like that was set upright to the slope, and after removing the hanging metal fittings and stuffing and backing, the pipe support was removed.

[0003]

However, the above-described conventional slope protection block and the method of installing the same have the following problems. (A) The conventional slope protection block is constructed such that the concave and convex portions are fitted and piled up at the time of construction, but the block is fixed only by concrete that is packed and backed between the ground and the block. And the like, and the weight of the block. In this case, the bonding strength between the blocks is not sufficient, and there is a danger that the blocks will collapse if a shock such as an earthquake occurs.

(B) The work of attaching the pipe support between the block and the ground is manually performed by an operator, and this work involves a great danger. In addition, there is a danger that the block in the support state before the embedding and backfilling may fall down with a slight impact, and special care is required for the embedding and backing work.

[0005] (c) In the conventional construction method, the stuffing and backfilling work is performed each time the block is laid one step, and the upper block can be laid until the concrete of the stuffing and backfill material is hardened to some extent. Did not. Therefore, there is a problem that the working efficiency is poor and the construction period is prolonged.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to improve the workability in the construction of a retaining wall and the like so that the construction period can be shortened and the work can be performed safely. The purpose is to: Another object of the present invention is to increase the strength of a retaining wall or the like after construction so that the earth wall does not easily collapse in the event of a disaster such as an earthquake.

[0007]

Means for Achieving the Object Means of the present invention taken to achieve the above object are as follows. In the first means, a slope protection block which is stacked to form a retaining wall or the like, wherein the block includes an outer panel,
An embedding member projecting on both left and right sides of the back surface of the outer panel, and formed over the entire height in the height direction of the outer panel;
Including, the embedding member, the connection space forming portion formed between the upper embedding member and the lower embedding member when the block is stacked, and when the block is stacked It is formed so as to protrude from the opposing surface, and has a connecting means for connecting the blocks arranged vertically, and the connecting space forming portion is configured to accommodate the connecting means , The connecting means is provided with a plate-shaped projecting portion.
The projecting part has a bolt hole
Relief piece is formed on the part that slopes inward
A slope protection block , characterized in that:

A second aspect of the present invention is the slope protection block according to the first aspect, further comprising a connection fitting vertically penetrating the embedding member.

In the third means, a drain pipe hole forming portion formed of a thin portion is provided on an outer surface plate.
Or a slope protection block according to the second means.

The fourth means is a method of constructing a slope protection block for forming a retaining wall or the like, and the construction method comprises the steps of: In charge of
That the slope protection block and coupled through a coupling means, comprising the steps stacking a required number, in accordance with the stacking height of the slope protection block, the steps of the rice cylinder-filling and back to a required height, and It is a construction method of a slope protection block.

[0011]

When the slope protection block is constructed, the blocks are connected vertically and / or left and right through connection means such as connection fittings embedded in the embedding member. Even if blocks are stacked in the required number of stages (usually two stages are stacked and backfilled, but not limited to this, three or more stages may be used if the strength is sufficient), each block is fixed to each other So that it does not normally fall even before the packing and backfilling work.

Since the loading and backfilling work is performed after the required number of blocks are stacked, more efficient work can be performed as compared with the case where the loading and backfilling work is performed step by step. Further, since a pipe support for supporting the block is not required, the operation can be simplified. After construction, the fixing power of the block becomes stronger due to the fixing force by the connecting means and the adhesive force of the body filling material such as concrete and back filling material,
The overall strength of the retaining wall, etc. is improved.

The connecting means has a plate-shaped projecting portion, and
The part has a bolt hole, and the tip part has an inner part.
Since the escape piece inclined toward the side is formed, the upper part
The slope protection block is shifted by 1/2 width from the bottom block.
When aligning the connecting brackets,
The connecting means is counteracted by the action of the escape piece provided at the tip.
It is smoothly contacted without biting into the other side.

In the case where the outer surface plate is provided with a drainage pipe hole forming portion formed of a thin portion, it can be easily and easily broken with a hammer or the like as necessary.
The drain pipe hole can be easily formed.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings. 1 is a perspective view of a block according to an embodiment of the present invention as viewed from below, FIG. 2 is a front view of the block shown in FIG. 1, and FIG. 3 is a plan view of the block shown in FIG.

Reference numeral B denotes a slope protection block,
And an embedding member 2 and a connection fitting 3 as connection means. The outer panel 1 is formed in a rectangular shape. A plurality of block patterns 10 are formed on a surface 11 of the outer panel 1 by grooves 14.
.. Are provided in a three-stage so-called break joint shape. Further, a drain pipe hole forming portion 13 formed of a semicircular thin portion is provided on one end side of the back surface 12 of the outer panel 1 in the lateral direction.

On the back surface of the outer panel 1, the embedding member 2 is provided at two places protruding rearward. The embedding members 2 and 2 are plate-like bodies having substantially the same thickness as the outer surface plate 1 and have substantially the same height. In addition, a thick portion 20 is formed over the entire height at the tip portion of the embedding members 2, 2 to further enhance the fixing force during construction. At the bottoms of the embedding members 2, 2, there is provided a notched connection space forming portion 22.

The connection fittings 3 are embedded in the embedding members 2 and 2 through the upper surface 21 and the top surface of the connection space forming part 22. The tips of the upper and lower protruding portions of the connection fittings 3 and 3 are formed in a semicircular shape, and approximately 45 ° inward each.
The inclined escape piece 30 is provided. Further, a bolt hole 31 is provided near the tip.

The upper and lower protruding lengths of the connection fittings 3 and 3 are set to be the same, the upper surface 21 protrudes upward, and the connection space forming portion 22 side is housed therein.
Then, when the slope protection block B is constructed and shifted laterally by a half width and overlapped with a break joint at the time of construction of the slope protection block B, the two bolt holes 3 1 , 3 1 of the connecting metal fittings 3, 3 facing each other are aligned. It is. Reference numeral 32 is an insertion hole for a hanging bracket.

The dimensions of each part of the slope protection block B in this embodiment are as follows. The dimensions are not limited to these, but are set variously depending on the construction place and construction scale. The length of the outer plate 1 is 900 mm, the width is 1200 mm, the thickness of the outer plate 1 is 110 mm at the maximum, the depth from the outer plate 1 to the embedding member 2 is 700 mm, and the protrusion length of the connection fitting 3 is 80 mm.

(Operation) FIG. 4 is an explanatory view showing an embodiment in which the construction state is viewed from the side, and FIG. 5 is an explanatory view showing an embodiment in which the construction state is viewed from the front. The operation and construction method of the present embodiment will be described with reference to FIGS. The base metal fitting 5 is installed on the ground 6 in accordance with the slope of the slope 4 of the construction part, and the base concrete 7 is
Is installed. Using a special hanging metal fitting (not shown), the slope protection block B is obliquely lifted by a crane according to the slope of the slope 4 and placed on the base concrete 7. Then, the base metal member 5 and the connection metal member 3 are tightened and fixed in the connection space forming part 22 with bolts 8 and nuts 9 (shown in FIG. 5).

After the installation of the first-stage slope protection block B is completed, the second stage is similarly replaced with a bolt 8 and a nut 9.
Secure using. At this time, the upper side slope protection block B is shifted by 幅 width from the lower side slope protection block B so that the connection fitting 3 is fitted. As a result, the upper and lower connecting fittings 3, 3 that come into contact with each other are smoothly brought into contact with each other without being bitten to the opposite side by the action of the escape pieces 30, 30 provided at the distal end, as shown in FIG.

When the second-stage fixing of the slope protection block B is completed, the backfilling material, such as the chestnut stone 42, is inserted between the slope protection block B and the block upper surface to a position 30 to 40 cm lower than the block upper surface.
Concrete as a filling material is driven around the embedding member 2.
This makes it easier to work on the back of the block. Hereinafter, the slope protection blocks B are similarly piled up, and the retaining wall is constructed.

As described above, since the slope protection block B is fixed to the other slope protection block B by the connecting bracket 3 and the bolts 8 and the nuts 9, the block B is usually stacked even before the loading and backing work. Then you will not fall. Therefore,
The work on the back side of the slope protection block B such as the work of stuffing and backing can be performed safely. Also, block B for slope protection
Are stacked in the required number of stages, and then the packing and backfilling work is performed, so that the work can be performed more efficiently than in the conventional case where the packing and backfilling work is performed for each block. Also, since reinforcing members such as pipe supports are not required,
Work can be simplified.

After the installation, the fixing force of the connecting metal 3 and the bolts 8 and the nuts 9 and the adhesive force of the stuffing and backfilling material such as concrete are combined, so that the mutual fixing force of the slope protection block B becomes stronger. As a result, the overall strength of the retaining wall is improved. Also, since a plurality of small block patterns 10, 10,... Are represented on the surface 11 of the outer panel 1, the appearance is almost the same as that obtained by stacking small blocks by a craftsman when constructed. Later aesthetics are improved.

In addition, drainage pipes (not shown) during construction
Is provided, if the drainage pipe hole forming portion 13 is hit with a hammer, it can be easily and easily broken, so that the pipe hole can be formed easily. The block patterns 10, 1
Due to the action of the grooves 14 forming 0..., Rain can easily propagate and can smoothly flow downward. In the present embodiment, the block patterns 10, 10,.
Is provided, but the pattern is not limited to this, for example, simply planar, wavy irregularities, various picture patterns, etc.
Various patterns can be provided, a visual effect suitable for the installation location can be made, and the installation location can be beautified.

The semicircular concrete thin portion provided at the end on the block side is provided for passing pipes, pipes and the like, and can be easily broken with a hitting tool such as a hammer. The present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the claims.

[0028]

The present invention has the above configuration and has the following effects. (A) Even if the blocks are stacked in the required number of stages, since the blocks are fixed to each other, the blocks do not usually fall down even before the loading operation and the backing operation. Therefore, work on the back side of the block, such as work for packing and backing, can be performed safely.

(B) Since the stacking and backfilling work is performed after stacking the required number of blocks, more efficient work can be performed as compared with the conventional case where the block packing and backfilling work is performed for each block one stage. . Further, since a pipe support for supporting the block is not required, the operation can be simplified. Therefore, it is possible to shorten the construction period of the construction of the retaining wall and the like as compared with the related art.

(C) After the construction, the fixing force by the connecting means and the adhesive force of the body-filling material and back-filling material such as concrete are combined, so that the fixing force between the blocks becomes stronger, and as a whole the retaining wall and the like are obtained. Since the strength of the steel is improved, it is possible to prevent collapse even in the event of a disaster such as an earthquake.

(D) The connecting means has a plate-shaped protruding portion, a bolt hole is provided in the protruding portion, and a relief piece inclined inward is formed at the tip portion .
Then, when the upper slope protection block is shifted by 1/2 width from the lower slope protection block so as to match the connection fittings, the upper and lower connection means in contact with each other are operated by the action of the escape piece provided at the tip end. It is smoothly contacted without biting into the opposite side.

(E) In the case where the outer surface plate is provided with a drainage pipe hole forming portion formed of a thin portion, the pipe can be easily and easily broken with a hammer or the like as necessary. Holes can be easily formed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a block according to the present invention as viewed from below.

FIG. 2 is a front view of the block shown in FIG. 1;

FIG. 3 is a plan view of the block shown in FIG. 1;

FIG. 4 is an explanatory view showing a construction state as viewed from the side.

FIG. 5 is an explanatory view showing the construction state as viewed from the front.

[Explanation of symbols]

 B Block for slope protection 1 Outer surface plate 2 Embedding member 3 Connection fitting 10 Block pattern 11 Front surface 12 Back surface 13 Drain pipe hole forming portion 20 Thick portion 21 Upper surface 22 Connection space forming portion 30 Relief piece 31 Bolt hole 32 Insertion hole

Claims (4)

(57) [Claims] Claims: 1. A slope protection block which is stacked to form a retaining wall or the like, comprising: an outer panel (1); and a left and right side of a back surface (12) of the outer panel (1). An embedding member (2, 2) that is protruded and formed over the entire height of the outer surface plate (1), and wherein the embedding member (2, 2) is formed by stacking the blocks. When the upper embedded member
(2) and a connecting space forming portion (22) formed between the lower embedding member (2) and a projecting surface formed from a surface facing when the blocks are stacked, and Connecting means for connecting the arranged blocks; andthe connecting space forming portion (22) is configured to accommodate the connecting means, and the connecting means includes a plate-shaped projecting portion. And the protruding part has
Bolt holes are provided, and the tip end faces inward
Characterized in that a slanted escape piece (30) is formed.
That, slope protection for the block. 2. The slope protection block according to claim 1, wherein the connection means includes a connection fitting vertically penetrating the embedding member. Wherein the outer surface plate, characterized in that the drain pipe hole forming portion formed by the thin wall portion is provided, according to claim 1 or 2 slope protection block according. 4. A method of constructing a slope protection block for forming a retaining wall or the like, the construction method comprising: connecting a slope protection block according to claim 1, 2, or 3 to a construction section. And a step of stacking the required number of steps, and a step of filling and backfilling to a required height according to the stacked height of the slope protection block, for slope protection. Block construction method.