JPH0444676Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a slope reinforcement structure for reinforcing the slope to prevent it from collapsing when building land is being developed.

[Prior art]

Conventionally, the method shown in Fig. 5 has been adopted as one of the slope reinforcement methods. That is, this slope reinforcement method involves bending a plurality of synthetic resin stretched nets 101 into a substantially U-shape, aligning the rising portions 101a along the slope 100,
The upper and lower bent portions 101b and 101c are buried approximately horizontally in the soil behind the slope 100, and each stretching net 101 wraps around the slope 100, reinforcing it to prevent it from collapsing. be.

[Problems to be solved by the invention] However, although the stretched net 101 buried by the above construction method has high tensile strength, it has low rigidity and is easily deformed. 101a is the fifth
As shown by the dashed line in the figure, there was a problem in that the slope 100 swelled due to the earth pressure from behind and did not form a uniformly smooth surface, which impaired its appearance.

Therefore, as shown in FIG.
Reinforcement methods have also been adopted to flatten 00, but
This reinforcement method requires a large number of sandbags 103 and is troublesome to create, so it is not a good idea.

[Means to solve the problem]

In order to solve this problem, the slope reinforcement structure of the present invention connects rust-proofed wire mesh to both ends of a crimp mesh made of rust-proofed high-hardness metal wire. The crimp net of the reinforcing net is placed along the slope, and the wire nets at both ends are buried substantially horizontally in the soil behind the slope.

[Effect of invention]

In this invention, the crimp net that runs along the slope has a structure in which the vertical and horizontal metal wires are fixed at the intersections and does not shift vertically and horizontally, so it is strong and has excellent rigidity. It has high rigidity and is extremely difficult to deform. Therefore, if such a crimp net is placed along the slope, the wire mesh connected to both ends is buried approximately horizontally in the soil behind the slope, and reinforced while enveloping the soil behind the slope, the crimp Due to its excellent rigidity, the net can withstand the earth pressure from behind the slope with almost no deformation and maintains its flatness, so there is almost no bulge in the slope.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic sectional view showing a slope reinforcement structure according to an embodiment of the present invention, and FIG. 2 is a partial perspective view of a reinforcing net used in the present invention.

In the figure, A is a reinforcing net used in the present invention, and this net A is made by connecting wire nets 7, 7 to both ends of a crimp net 1 via wires 10. This crimp net 1 is made by intersecting high-rigid metal wires 2 bent in a waveform in the vertical and horizontal directions and weaving them into a plain weave.At each intersection, the vertical and horizontal metal wires 2
The peaks and valleys interlock and intersect in a fixed state without shifting from each other. Therefore, the crimp net 1
Of course, when compared with synthetic resin stretched nets,
Even when compared to metal diamond mesh or tortoiseshell mesh, it is much more rigid and extremely difficult to deform. As shown in FIG. 3, the metal wire 2 has a galvanized layer 4 formed on a core wire 3 made of a highly rigid steel wire, etc., and an engineering plastic layer 6 coated on the outer peripheral surface of the core wire with an adhesive layer 5 interposed therebetween. By forming
It is preferable to select and use the engineering plastic layer 6 that has been subjected to anti-corrosion treatment and has good brittleness and impact resistance at low temperatures and a high surface hardness, and the core wire 3 has sufficient strength. Therefore, it is preferable to use a steel wire or the like having a thickness of about 2 to 4 mm. Note that if the mesh size of the crimp net 1 is too large, there is a risk that the strength will be insufficient.
When reinforcing along the mesh, there is a risk of soil falling through the mesh, so the mesh size should be 30 to 60 mm.
Preferably, the size is approximately square.

On the other hand, the wire meshes 7, 7 of this embodiment have meandering metal row lines 8 which have been subjected to the same anti-corrosion treatment as the metal wire 2.
is intertwined with the adjacent metal row lines 8 at the bends and woven into a diamond-shaped mesh, and the slope 1
It is preferable to use a material having a large mesh thickness that can sufficiently intertwine with the soil behind 00, for example, a material having a mesh thickness of about 10 to 25 mm. These wire meshes 7, 7 may have the same dimensions and the same area, but as shown in FIG. 1, the wire mesh that is located on the upper side when buried in the soil behind the slope 100 is located on the lower side It may be narrower in width and have a smaller area than wire mesh. As the wire meshes 7, 7, in addition to the diamond wire mesh described above, various wire meshes such as a tortoise shell mesh can be used.

The reinforcing net A is provided at both ends of the vertical metal wires 2 of the crimp net 1 and the metal row lines 8 of the wire nets 7, 7.
The ends of the wires 10 and 10 on the side of the crimp mesh are respectively
The wires 10, 10 are connected in a foldable manner by winding them around the wire 10, and the wires 10, 10 are stretched horizontally along the slope 100.

In the slope reinforcement structure of the present invention, the reinforcing net A as described above is bent into a substantially U-shape at the connection part, the crimp net 1 is made to follow the slope 100, and the wire nets 7 at both the upper and lower ends are bent. , 7 are buried approximately horizontally in the soil behind the slope 100, and the earth and sand behind the slope are covered with upper and lower wire meshes 7, 7.
and crimp net 1, wrapped from three sides,
It is reinforced to prevent it from collapsing.

When the slope 100 is reinforced with such a structure, the crimp net 1 along the slope 100 has high rigidity and is extremely difficult to deform as described above, so the earth pressure from behind the slope 100 is reduced. maintains flatness against Therefore, since almost no bulge occurs on the slope 100, there is almost no damage to the appearance, and moreover, both the metal wires 2 of the crimp net 1 and the metal row lines 8 of the wire net 7 are subjected to anti-rust treatment. Therefore, there is no need to worry about early deterioration due to rusting.
The slope 100 can be satisfactorily reinforced for a long period of time. In this case, if the height of the crimp net 1 is too large, the pressure-receiving area may become too large and bulge may occur, so the height (width) W of the crimp net 1 should be approximately 30 to 150 cm. is preferable, and the length is preferably about 2 to 8 m.

Furthermore, if the wire meshes 7, 7 are diamond mesh with a large mesh thickness as described above, they will deeply intertwine with the earth and sand behind the slope 100 and sufficiently prevent the earth and sand from sliding, which has the advantage of further increasing the reinforcing effect. be.

FIG. 4 is a partially cutaway perspective view showing another embodiment of the present invention, in which a large number of water-permeable tubes are connected to the meshes of rhombus nets 7, 7 connected above and below the crimp net 1. Drainage strip material 1 made by covering with non-woven fabric
0, and the tip of the drainage strip 10 is placed on the slope 10.
It is made to protrude from 0 and is integrated with the rhomboid nets 7, 7. When the drainage strips 10 are inserted and arranged in this way, the drainage performance is improved, and it is possible to prevent the embankment from becoming soft due to water content, and the drainage strips 10 are arranged in diamonds. Since the nets 7, 7 are protected by the metal rows 8, there is no need to worry about them being crushed by large stones or the like.

[Effect of idea]

As is clear from the above explanation, in the slope reinforcement structure of the present invention, the crimp net along the slope has high rigidity and is extremely resistant to deformation, so it is resistant to earth pressure from behind the slope. In contrast, it is possible to reinforce the slope while maintaining a flat surface with a good appearance.
There is no need for the troublesome work of making sandbags that is required when stacking conventional sandbags, and the crimp mesh and wire mesh that make up the reinforcing mesh are both rust-proofed, so they will last for a long time. The effect is that the surface can be reinforced satisfactorily.

[Brief explanation of the drawing]

Figure 1 is a schematic sectional view of a slope reinforcement structure according to an embodiment of the present invention, Figure 2 is a partial perspective view showing an example of a reinforcing net used in the present invention, and Figure 3 is a crimp net. FIG. 4 is a partially cutaway perspective view showing another embodiment of the present invention, and FIGS. 5 and 6 are schematic sectional views showing a conventional slope reinforcement structure. Explanation of symbols, A... Reinforcing net, 1... Crimp net, 2... Highly rigid metal wire, 7... Wire mesh, 10
0...Slope.

Claims (1)

[Scope of utility model registration request] The crimp net of the reinforcing net is formed by connecting a wire mesh treated with rust prevention treatment to both ends of a crimp net made of a highly hard metal wire treated with rust prevention treatment, along the slope, A slope reinforcement structure characterized in that the mesh bodies at both ends are buried substantially horizontally in the soil behind the slope.