JPS6229622A - Planting construction on face of slope - Google Patents

Abstract

PURPOSE:To properly use an economical net and prevent filling from being dropped, by arranging fertilizer bags laterally in line on the whole face of slope to fix them with anchor pins, and by spreading a net on the fertilizer bags to cover the net with soil. CONSTITUTION:Fertilizer bags 2 are arranged laterally in line, and the respective fertilizer bats 2 are fixed on the face 1 of slope with anchor pins 3. After that, on the group of fertilizer bags 2, a sediment-drop-proof net 4 made of metal, nylon, or polyester is spread. Then, the net 4 is spread one the whole face of slope, and the thickness of soil is adjusted according to the soil of the face 1 of slope, to cover the net 4; and when the soil is not poor, then the net 4 is covered with the soil so that the net 4 may be slightly seen. By this method, an economical net can be used, and (according to the soil), the net can be properly used.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates primarily to a vegetation construction method applied to the greening of cut slopes of mountains.

Conventional technology and its problems As a method of greening a cut slope, for example, a method is known in which a metal or synthetic resin net is stretched over the slope and seeds, fertilizers, etc. are spread over it. There is. This vegetation construction method is frequently used because it takes less time to construct than conventional carpentry methods or bag-laying methods, and it also has the effect of preventing slope surface collapse and scattering base material from collapsing. However, in order to improve workability, this method requires a power spraying machine, and if the area of the slope becomes large, a large spraying machine is required, and it takes a lot of time and effort to transport it and maintain the machine. The drawback was that it was time consuming.

In addition, as another vegetation construction method, a construction method using a net (made of nylon or polyester) that is integrally provided with a container for storing a rod-shaped fertilizer bag is known (Utility Application 1986-1983).
09). In this construction method, fertilizer bags are placed in the net in advance, the net is stretched over the slope, and soil is covered on top of the net. However, with this construction method, the net itself is relatively expensive, and the same net must be used for mountains with high greening value (good mountains) even for rough mountains that do not require complete greening (bad mountains). When constructing on slopes with poor soil quality (hard, clay, gravel, etc.), the embankment must be made thicker, but the nets made of nylon or polyester do not have enough strength to support thick embankments. It had drawbacks such as being prone to falling.

Purpose of the Invention The present invention has been made in order to eliminate the drawbacks of the conventional vegetation construction method using rod-shaped fertilizer bags, and is an inexpensive method that does not require a net with a storage section for storing the rod-shaped fertilizer bags. The purpose of this invention is to propose a vegetation construction method that can use nets, can be used differently depending on whether the mountain is good or bad, and can prevent embankments from falling even on slopes with rough soil quality.

Structure of the Invention The slope vegetation construction method according to the present invention is a slope vegetation construction method that uses a stick-shaped fertilizer bag filled with a water-permeable bag body with vegetation fertilizer and a net for preventing landslides. The fertilizer bags are arranged sideways in a row, each fertilizer bag is fixed with an anchor pin, the net is stretched over the fertilizer bag, and then soil is covered over the net. It is.

Hereinafter, the method of this invention will be explained in detail with reference to the drawings.

Figure 1 is a front view showing a state in which a bar-shaped fertilizer bag is attached to the slope surface to be constructed, where (1) is the slope surface and (2) is the fertilizer bag. That is, in the method of this invention, a rod-shaped manure bag (2), which is a water-permeable bag filled with vegetation fertilizer, is fixed to the entire slope (1). The fertilizer bags (2) usually have a length of about 1 to 2 TrL, and are arranged sideways in a row, and each fertilizer bag is fixed to the slope (1) with an anchor pin (3).

Next, as shown in a sectional view of the slope in FIG. 2, a net (4) for preventing landslides is stretched over the group of fertilizer bags. This net may be made of metal, nylon, or polyester, but nylon or polyester is generally used. Appropriate fasteners may be used to secure the net. After the net (4) is stretched over the entire slope so as to cover the fertilizer bags, the construction is completed by covering the net with soil. At that time, the soil is applied with varying thickness depending on the soil quality of the slope (1). If the soil is not particularly bad, the thickness may be such that the net (4) is slightly visible.

On the other hand, when applying the method of this invention to a slope with poor soil quality such as hard, clay, or gravel, first fix the fertilizer bag (2) to the entire slope in the same manner as described above, and then attach a metal bag to the slope. Set up a net. The reason for using a metal net is that nylon,
This is because polyester nets have a weak ability to support thick embankments. That is, in the case of a slope with poor soil quality, it is necessary to make the embankment thicker as described above, so that the embankment is required to have a strength that can prevent it from falling. In the case of a metal net, the above-mentioned requirements are satisfied, so in the case of a slope where the soil quality is poor and thick embankment is required, a metal net is used instead of a nylon or polyester net.

As explained in detail, the method of this invention involves fixing rod-shaped fertilizer bags on a slope in a row, then stretching a net to prevent landslides over the fertilizer bags, and then placing the net on top of the net. Since the construction method is to cover the fertilizer bags with soil, it takes some time to fix the fertilizer bags, but a cheap net can be used, which has the effect of lowering construction costs compared to the conventional construction method that uses a net with a fertilizer bag storage part. has. Another advantage is that you can use different nets depending on the mountain. In general, in the case of slopes with poor soil quality that require thick embankments, metal nets can be used, which have a great effect on preventing landslides, so this method can be easily applied to slopes with poor soil quality. have

[Brief explanation of the drawing]

FIG. 1 is a front view showing a state in which a fertilizer bag is attached to a slope to be constructed, and FIG. 2 is a longitudinal sectional side view showing a state in which a net is stretched over the same slope. 1... Slope, 2... Fertilizer bag, 3... Anchor pin, 4...
···Net.

Claims (1)

[Claims] In a slope construction method that uses stick-shaped fertilizer bags filled with water-permeable fertilizer for vegetation and a net to prevent landslides, the fertilizer bags are arranged horizontally in rows over the entire slope, and each fertilizer is A slope vegetation construction method characterized by fixing a bag with an anchor pin, stretching the net over the fertilizer bag, and then covering the net with soil.