JPH0527531Y2 - - Google Patents

Description

[Detailed description of the invention] <<Industrial application field>> This invention is a slope that is laid on the slope of a river bank or revetment to prevent the bank or revetment from scouring and to strengthen the slope. Regarding construction materials.

《Conventional technology》 This type of slope construction material is
As exemplified in Japanese Patent No. 11485, there is a so-called chain block structure in which a common reinforcing bar is inserted when forming a large number of weight blocks and the weight blocks are connected via the reinforcing bar.

Furthermore, Japanese Patent Application Laid-Open No. 60-212523 discloses a structure in which each of the weight blocks is movably connected to a flexible steel cable, so that the spacing between the weight blocks can be adjusted during construction. .

<<Problem to be solved by the invention>> The chain block described above can improve the work of laying heavy blocks to a certain extent. By the way, as shown in the latter publication, such chain blocks or heavy blocks are often installed on slopes to strengthen the slopes by laying net members to prevent scour. It may also be laid in double or triple layers.

However, in the conventional structure in which a large number of weight blocks are connected by rope-like materials such as reinforcing bars or steel cables, the work of laying the net members must be done in advance, and when the net members are laid in double or triple layers, In this case, the distance between each block had to be adjusted.

This invention solves the above problems, and its purpose is to be able to lay a large number of heavy blocks on the slope by unwinding, and also to complete the installation of the wire mesh to prevent scouring at the same time. Our goal is to provide slope construction materials that are designed to meet the needs of our customers.

《Means for Solving the Problems》 In order to achieve the above purpose, this invention is a method that is installed on the slope of a river bank or revetment to prevent scouring of the bank or revetment, and to strengthen the slope. In the slope construction material, the slope construction material is
A plurality of weight blocks are formed integrally with a wire mesh having a predetermined width and length to prevent scour, sandwiching them from above and below the wire mesh, and between the weight blocks at least one of the weight blocks of other slope construction materials is placed. It has a space for the upper or lower body.

<<Operation>> According to the above configuration, if the slope construction material is wound up in advance on a large reel and is fed out from the reel when construction is to be carried out on the slope, the material can be laid continuously on the slope one after another. . That is, the slope is covered with weight blocks and a wire mesh between the blocks to prevent scour.

In addition, this slope construction material has a gap between the weight blocks, in which at least the upper or lower half of the weight block of another slope construction material can fit, so it is not a single layer but a vertical or horizontal space. It is possible to lay two or more layers, and in this case, the laying density becomes high.

<<Example>> Hereinafter, an example of this invention will be described in detail using the drawings.

1 to 3 show a preferred embodiment of this invention.

In the figure, this slope construction material 10 includes a wire mesh 12 formed to have a predetermined length and width, and a wire mesh 2.
A large number of precast concrete heavy blocks 14 are formed at predetermined intervals vertically and horizontally with the top and bottom of the block in between.
It is made up of.

The method for forming this slope construction material 10 is to arrange a number of rows of lower dies for forming the weight blocks 14 vertically and horizontally at predetermined intervals, and in this state, place a wire mesh 12 on the top surface of each lower dies. Then, by engaging the upper mold and pouring concrete inside, a large number of weight blocks 14 having a hexagonal cross section can be molded integrally with the wire mesh 12 with the upper and lower sides of the wire mesh 12 being sandwiched, keeping constant intervals vertically and horizontally. can. In addition, weight block 1
The interval between the four blocks is set to a size that can accommodate at least the upper or lower half of the weight block of another slope construction material.

The slope construction material 10 thus produced is wound up in advance on a large reel 16 for winding, as shown in FIG. 2, and the reel 16 is rotated from above the bank 18 at the construction site. Then, the slope construction materials 10 are paid out and sequentially laid on the slope 18a of the bank 18. The installation work is completed by cutting off the wire mesh 12 at the rear end.

As described above, in order to lay the slope construction material 10 on one side of the slope 18a, once the width of the wire mesh 12 has been laid, the slope construction material 10 can be laid in the same way on the side of the wire mesh 12 with a slight overlap. Then, the laying work is performed while unwinding from the reel 18.

Further, the vertical and horizontal intervals of each weight block 14 are as follows.
(At least the size that accommodates the upper or lower half of the heavy block of other slope construction materials) Since the pitch is constant, when laying the slope construction materials 10 in duplicate, the pitch must be shifted by that distance. The laying work is performed by overlapping the slope construction material 10 on top of the slope construction material 10 that has already been laid.

In this case, the upper and lower weight blocks 14 are arranged alternately, and the wire mesh 12 on the lower side (the exposed part located between the weight blocks 14) is attached to the upper weight block 14. As a result, it becomes pressed down. And weight block 1
The installation density of No. 4 is doubled, and the installation condition becomes more stable.

In the slope construction material 10 laid as described above, the exposed portion of the wire mesh 12 functions to prevent scour, and the weight blocks 14 strengthen the slope 18a.

In this embodiment, precast concrete was used as the weight block 14, but it is also possible to use waste plastic, which has a relatively large specific gravity, and integrally mold it on the wire mesh using an appropriate molding method. Of course.

<<Effects of the invention>> As explained in detail using the examples above, the slope construction material according to this invention has the following effects.

If you wind up the slope construction material on a large reel in advance and unwind it from the reel when constructing on the slope, the material will be laid continuously on the slope one after another.
Construction is easy and the construction period is shortened. In this case, in this invention, unlike the conventional structure in which the weight blocks are connected to each other using chain-like connecting members, multiple weight blocks are integrally molded into a wire mesh to prevent scour, so that the slope By covering the top with a wire mesh section between the weight blocks, it is possible to perform not only strengthening treatment but also reliable prevention of scour.

In addition, this slope construction material can be laid not in a single layer but in double or more vertically or horizontally, and in this case, at least between the weight blocks above or below the weight block of other slope construction materials. Since the space between the halves is set, the laying density is even higher, allowing for high-density laying.

[Brief explanation of drawings]

Figures 1 to 3 show one embodiment of this invention, with Figure 1 being a perspective view of the slope construction material, and Figure 2 being a cross section showing the slope construction material being laid on the slope of an embankment. 3 are partially enlarged sectional views. 10... Slope construction material, 12... Wire mesh, 14...
Weight block, 18a... slope.

Claims (1)

[Scope of Claim for Utility Model Registration] A slope construction material that is laid on the slope of a river bank or revetment to prevent scouring of the bank or revetment and to strengthen the slope. , a plurality of weight blocks are integrally molded so as to be sandwiched from above and below the wire mesh for scour prevention having a predetermined width and length, and at least a weight block of other slope construction material is placed between the weight blocks. A slope construction material characterized by having a gap into which the upper or lower half of the body can fit.