JPH0819680B2 - Slope greening 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 greening method for stabilizing and greening a natural slope facing a road, a residential land or a river, especially a steep slope of 45 ° or more.

[0002]

2. Description of the Related Art The conventional slope revegetation method has a gradient of 0 ° to 45 ° depending on the geology.
Tree planting is implemented. When the slope is 45 ° to 70 °, the soil spraying method, the framing method and the soil revegetation method are used. Greening is difficult on steep slopes of 70 ° or more, and concrete walls, concrete spraying work, etc. are being carried out. However, recently, as shown in FIG. 4, a construction method using a concrete block a having a soil space b for supporting soil has been performed. This construction method, as shown in FIG.
The concrete blocks a are piled up, and the soil c is placed in the soil space b for planting.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
There are the following problems. <B> Since the weight of the concrete block a is large,
Construction is difficult, especially on steep slopes. <B> Since the area occupied by the skeleton itself of the concrete block a is large, the green area of the slope becomes small. <C> Since the soil space c is small and the soil volume is small, the growth of plants is poor and the plants often die.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and can be easily constructed even on a steep slope, and can increase the green area and the amount of soil. The purpose is to provide a greening method for slopes that can be done. That is, according to the present invention, a vertical frame is constructed in the vertical direction along a slope, and a plurality of the vertical frames are arranged in parallel on the slope at predetermined intervals to form a horizontal frame composed of a perforated plate having a substantially L-shaped cross section. A plurality of horizontal frames are installed between the vertical frames, and at this time, the horizontal frames are installed so that the horizontal frame and the slope form a substantially U-shape with the upper side of the slope open. This is a slope revegetation method characterized by soil and planting.
In addition, in the above-mentioned greening method, it is characterized in that an adhering body of plant seeds is installed inside the horizontal frame perforated plate substantially parallel to the slope.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. <A> Construction of vertical frame (Fig. 2) As shown in Fig. 2, a vertical frame 1 is constructed in the up-down direction along the slope of the greening target ground, and the vertical frame 1 is arranged at predetermined intervals on the slope. Place multiple in parallel. The vertical frame 1 is a reinforced concrete column constructed by cast-in-place or precast concrete, a steel column, or the like, and is fixed to the slope by an anchor 11. If it is necessary to prevent the slope from collapsing, lock bolts and earth anchors should be used.

<B> Structure of Horizontal Frame (FIG. 3) The horizontal frame 2 is, as shown in FIG. 3, a perforated plate processed into a substantially L-shaped cross section. As the perforated plate, a wire mesh plate, expanded metal, or a plate having holes formed in a steel plate or the like can be used. The surface of the L-shaped perforated plate that is installed substantially parallel to the inclined surface should have a small hole size so that the soil does not fall through the hole. When a wire mesh plate or the like is used for the perforated plate, an L-shaped steel protruding in a direction orthogonal to the perforated plate is joined to both ends, and an anchor bolt insertion hole for fixing the L-shaped steel to the vertical frame 1 Open 22. When a steel plate or the like is used as the perforated plate, both ends of the steel plate are bent in the orthogonal direction as described above to open the anchor bolt insertion hole. A wire mesh plate or the like may be directly fixed to the vertical frame 1 with anchor bolts, or an L-shaped steel 21 may be joined to a perforated steel plate.
Various other structures can be adopted for the joint portion between the horizontal frame 2 and the vertical frame 1.

<C> Installation of horizontal frame (FIGS. 1, 2, and 4) The horizontal frame 2 is arranged laterally between the vertical frames 1 as shown in FIG. 2, and anchor bolts are provided in the insertion holes 22 at both ends. Insert it and drive it into the side surface of the vertical frame 1 to fix it. At this time, as shown in FIG. 1, the horizontal frame 2 is installed so that the horizontal frame 2 and the slope form a substantially U-shape with the upper side of the slope open. At this time, as shown in FIG. 4, the plant seed adherent 4 may be installed inside the horizontal frame perforated plate substantially parallel to the slope. The seed adhering body 4 is obtained by adhering plant seeds to a sheet-like body or a net-like body made of water-soluble paper or straw. In this way, by preliminarily installing the seed adhering body 4 in front of the soil, seeds can be easily sown on the inner side of the front surface of the horizontal frame. Further, it is possible to prevent the soil from spilling through the holes of the horizontal frame 2 and prevent the soil from collapsing.

<D> Soil and Planting (FIG. 1) After the horizontal frame 2 is installed, as shown in FIG. 1, the soil 3 is placed in the space surrounded by the horizontal frame 2 and the slope. As described above, the horizontal frame 2 and the soil 3 are repeatedly installed, and in order to stabilize the soil 3, the construction is sequentially performed from the lower side of the slope to the upper side, and the construction is performed up to the upper side of the required slope. In addition, by adjusting the installation interval in the vertical direction of the horizontal frame 2, the amount of soil can be adjusted,
The installation interval should be selected according to the type of plant to be planted.
After the horizontal frame 2 is installed and the soil 3 is completed, planting is carried out on the entire slope formed by the horizontal frame 2 and the soil 3. In this case, the horizontal frame 2
It is advisable to plant trees and the like in the vertical intervals of and to plant grass in front of the horizontal frame 2. In addition, after performing the visit soil 3,
The operation of sowing the plant seeds on the inner side of the front surface of the lateral frame 2 is somewhat complicated, but if the seed adhering body 4 is installed in advance, the operation can be omitted.

[0009]

Since the present invention has been described above, the following effects can be obtained. <A> Since the horizontal frame is formed of a perforated plate such as a wire mesh, it is lightweight and easy to install even on a steep slope.

<B> Since the horizontal frame is perforated, it is possible to plant even on the front surface of the horizontal frame, and the green area of the slope increases.

<C> A wide soil space is secured between the horizontal frame and the slope, and since the horizontal frame is perforated, the soil is continuous over the entire slope. Therefore, the amount of guest soil can be increased, and a favorable plant growth environment can be created.

<D> By installing the seed adhering body in front of the soil, the seeds can be easily sown on the inner side of the front surface of the horizontal frame. Further, it is possible to prevent the soil from spilling from the horizontal frame hole and prevent the soil from collapsing.

[Brief description of drawings]

[Fig.1] Illustration of the soil after planting

[Fig. 2] An explanatory view of a method of installing a vertical frame and a horizontal frame.

FIG. 3 is an explanatory diagram of a horizontal frame.

FIG. 4 is an explanatory view of a state in which a seed adhering body is installed.

FIG. 5 is an explanatory view of a conventional concrete block.

FIG. 6 is an explanatory diagram of a conventional greening method using a concrete block.

Claims (2)

[Claims] 1. A vertical frame is constructed vertically along a slope,
Moreover, a plurality of the vertical frames are arranged in parallel on the slope at a predetermined interval, and a horizontal frame composed of a perforated plate having a substantially L-shaped cross section is installed in a plurality of stages in the horizontal direction between the vertical frames. By the horizontal frame and the slope,
A slope revegetation method characterized in that a horizontal frame is installed so as to form an approximately U-shape with an opening on the upper side of the slope, and the soil is planted by making soil inside the approximately U-shape. 2. Inside the horizontal frame perforated plate that is substantially parallel to the slope,
The slope greening method according to claim 1, wherein a plant seed adherent is provided.