JP2679966B2 - Rockfall prevention 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 rockfall prevention method applied to an inclined surface such as a road where rockfall is likely to occur.

[0002]

2. Description of the Related Art Heretofore, as a method of preventing the occurrence of falling rocks on an inclined surface, there has been known a method in which the entire inclined surface is covered with a wire mesh, and the occurrence of falling rocks is prevented by such a wire mesh.

[0003]

However, in such a conventional means, standing trees (natural forests, planted trees) on the inclined surface must be cut off because a wire net is stretched over the entire inclined surface. For this reason, not only is the construction work considerably troublesome, but it also causes environmental damage and impairs aesthetics.

The present invention has been made by paying attention to such a point, and the purpose thereof is that construction can be carried out without needing to cut a standing tree, and the occurrence of rockfall without environmental damage or deterioration of aesthetics. The purpose is to provide a rock fall prevention method that can prevent the rock fall.

[0005]

In order to achieve such an object, the present invention provides a plurality of wire ropes on an inclined surface where standing trees and floating stones are scattered, avoiding the standing trees.
And stretched in a mesh shape so as to pass over the floating stones, the ends of these wire ropes are locked to the inclined surface via anchors, and the intersections of the respective wire ropes are fastened with a cross clip. Dig holes in multiple places on the slope,
Fill each of these holes with a solidified material, insert an anchor into each of these solidified materials and fix them, and lock the wire rope by these anchors along the topography of the inclined surface to press the floating stones. It was done.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In the figure, for example, reference numeral 1 denotes an inclined surface along a road in a mountainous area.
At the same time, floating stones 3, which are the source of rockfall, are scattered.

On such an inclined surface 1, a large number of wire ropes 4 ... Are laid in a mesh shape vertically or horizontally or diagonally so as to avoid standing trees 2 ...
The ends of these wire ropes 4 ...
Lock through. Then, each crossing portion of each wire rope 4 ... Is fastened with a cross clip 5.

In addition, for example, at a suitable place on the inclined surface 1, the depth is
A hole having a diameter of 0.5 to 1.5 m and a diameter of 5 to 15 cm is dug, and a cylindrical plastic container 8 filled with a solidifying material 7 such as mortar or cement is inserted into the hole as shown in FIG. The anchor 6 is inserted into the inside, and this is solidified and fixed by the solidified material 7.

The intersections of the wire ropes 4 ... Are locked by these anchors 6 ...
The floating stones 3 are pressed down by the wire ropes 4 so that they are closely attached along the terrain.

According to such a rockfall prevention construction method, the initial start of the floating rock 3 which is the source of rockfall is suppressed by the wire ropes 4 ... Therefore, rockfall energy is not generated,
The inclined surface 1 is stable, and rockfall can be reliably prevented for a long period of time.

Further, it is not necessary to fell the standing trees 2 ... In particular, the construction work is simple and the construction cost is reduced, and since the standing trees 2 can be left as they are, environmental damage is not caused and the nature is protected. Useful and standing trees 2
Since the wire ropes 4 are hidden to some extent by ..., the appearance can be kept good.

In such a rockfall prevention method, the construction is easy and the removal is easy,
For example, when constructing a road or a structure below the cut slope, it may be used as a temporary installation on the slope.

[0013]

As described above, according to the present invention, it is possible to suppress the initial start-up of floating stones and reliably prevent the occurrence of falling rocks, and it is not necessary to fell standing trees, so that the installation is simple. Moreover, there is an advantage that the environment is not destroyed and the appearance is not deteriorated.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a rock fall prevention device to which a rock fall prevention method according to an embodiment of the present invention is applied.

FIG. 2 is a plan view of the rock fall prevention device.

[Explanation of symbols]

 1 ... Inclined surface 2 ... Standing tree 3 ... Floating stone 4 ... Wire rope 5 ... Cross clip 6 ... Anchor 7 ... Solidifying material 8 ... Plastic container 9 ... Anchor

Claims (2)

(57) [Claims] 1. A plurality of wire ropes are stretched in a mesh shape so as to avoid the standing tree and pass over the floating stones on an inclined surface where standing trees and floating stones are scattered. While locking the terminal to the inclined surface via an anchor, fasten the intersection of each wire rope with a cross clip, further dig holes in the inclined surface at a plurality of locations, and fill the solidified material in each of these holes, A rock fall prevention method characterized in that anchors are inserted into and fixed in the solidified material, and the wire ropes are locked by these anchors along the topography of the inclined surface to press the floating stones. 2. The rock fall prevention method according to claim 1, wherein a container filled with a solidifying material is inserted into the hole of the inclined surface, and an anchor is inserted into the solidifying material in the container to fix the container.