JPH0544217A - Slope stabilizing work - Google Patents

Abstract

PURPOSE:To stabilize sloped ground for a long periods of time by preventing the sliding and degradation of the ground by a method in which vegetative mats and bars with plants cultivated in advance are arranged on the sloped ground in such a way as to integrally root the plants to the ground. CONSTITUTION:Plant-rooted bars 5, in which trees or plant seeds 4 are grown on the end portion of a bag filled with vegetative base or drain and the inside or outside is reinforced with reinforcing nets as needed, or plant-rooted mats 7 in which the seeds 4 are grown on the ends of the sections filled with vegetative base or drain, partitioned by many partition plates are arranged in forming a banking 9, or the bars 5 are inserted into holes in the cut slope. The ground is integrated with the roots of the plants and the sloped ground can thus be stabilized for long periods by increased reinforcing range by the growth of plant roots.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope stabilization method for restraining slopes by restraining debris by using plant roots to stabilize slopes.

[0002]

2. Description of the Related Art Conventionally, as a method of stabilizing a slope, a soil retaining pile is used to hold the soil, a polymer net is spread every time the soil is filled to stabilize the soil, or a soil containing seeds is sprayed on the surface of the slope. It was common to use vegetation for stability or anchors or siding for stability.

[0003]

However, such a conventional construction method has the following problems.
The method using soil retaining piles is a method of striking piles on the slope and entwining bamboo etc. to remove the topsoil and stabilize the soil, but it has a drawback that the slope deteriorates due to corrosion over time. In addition, the method of greening is a method of spraying the soil containing soil and vegetation base material with seeds on the surface of the slope and planting it early to stabilize the slope by growing roots, but woody plants with many roots Being overwhelmed by herbs,
In addition, the growth was slow and it took time to stabilize, so it was impossible to avoid the loss of topsoil. In addition, it took a long time for roots to penetrate into the soil from the surface of the slope, and it was not always possible to stabilize the entire slope.

A method of stabilizing slopes using geotextiles such as polymer nets is to arrange geotextiles in layers in the ground for reinforcement. Geotextile is expensive and its effect is great, but there is a drawback that the surface is deteriorated by receiving ultraviolet rays, it cannot be said that the surface can be permanently stabilized, and it is necessary to green the surface Met. The use of a large amount of chemical products such as polymer nets has not only polluted the environment but also the problem of disposal at the time of future land use. There are various construction methods for achieving stability with anchors and closing plates, but they use iron, concrete, resin, etc. and have the risk of corrosion or deterioration.

[0005]

Means for Solving the Problems A method for stabilizing slopes according to the present invention is to place mats or rods of roots that have been previously grown on slopes at predetermined intervals on the slope of the embankment, or to cut slopes. It is characterized in that holes are formed and rod-shaped bodies are arranged at predetermined intervals to stabilize the slope for a long period of time as the root grows.

A preferred embodiment of the slope stabilization method according to the present invention is that mats or rods of roots are grown and produced in advance. In embankment, the mats or rods are formed at predetermined intervals in the embankment process. Disposing the body, and inserting rod-shaped bodies into the holes at predetermined intervals on the cut slope.

[0007]

According to the present invention, the root mat is integrated with the ground by arranging the mats or rods of the roots grown and produced in advance in the ground of the slope and rooting the root in the ground. Then, the ground is restrained with roots to prevent slipping and collapse. Of course, roots are plants, and the number of roots grows as they grow.
The area to be restrained is also large, and the stability of the slope can be maintained together even if the weathering of the natural ground advances.

[0008]

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

In FIG. 1, a vegetation substrate 2 and a drain 3 are put in a bag 1. In FIG. 2, seeds and trees 4 are sown or planted on the ends of the bag 1 to grow, and roots are grown in the bag to form root-like rods 5. 3 to 5 show that the vegetation base material 2 and the drain 3 are put between a large number of partition plates 6, and seeds and trees 4 are added to the end portions.
Is sown or planted to grow mats 7 for planting roots.
The inside or outside of the rod-shaped body 5 shown in FIG. 6 is reinforced with a reinforcing net 8 or the like. At the stage of constructing the embankment 9 shown in FIG. 7, the rooting mat body 7 or the rod-shaped body 5 is arranged. Cut 1 shown in FIG.
The rod-shaped body 5 is arranged in the hole 11 drilled on the slope 0. A method to reinforce the slopes as the plants grow together with the ground.

[0010]

As described above, according to the present invention, the following effects can be obtained. () Is a conventional defect.

[0011] Root growth reinforces, and elongation extends the reinforce range and reinforces the effect over time.
(In the method using the structure, the members deteriorate with the passage of time, so periodic inspection and repair are required.) The members of the structure deteriorate with the passage of time, but plants grow over a long period of time and expand reinforcement. Keep going and become stable forever. We use the binding force of the roots of plants and use those that naturally live, so we do not use substances that pollute the natural world. Since no artificial substance is used, the environment is not polluted and there is no concern about deterioration of the reinforcing member. Since it is grown in advance, it will not be overwhelmed by overgrowth of grass.

[Brief description of drawings]

[Figure 1]

FIG. 2 is an explanatory view showing an example of a rod-shaped body according to the present invention.

[Figure 3]

[Figure 4]

FIG. 5 is an explanatory view showing one embodiment of the mat body according to the present invention.

FIG. 6 is an explanatory view showing one embodiment in which a rod-shaped body according to the present invention is reinforced.

FIG. 7 is a construction diagram for embankment according to the present invention.

FIG. 8 is a construction diagram in the case of cut soil according to the present invention.

[Figure 9]

[Figure 10]

FIG. 11

[Fig. 12]

FIG. 13 is a schematic view of a conventional reinforcing method.

[Explanation of symbols]

 1 bag body 2 vegetation base material 3 drain (aeration, water supply, drainage) 4 seeds and trees 5 rods 6 partition plate 7 rooting mat body 8 reinforcing net (reinforcement body) 9 embankment 10 cut soil 11 drilled holes

Claims (4)

[Claims] 1. A partition board is spread at a predetermined interval, and a growth substrate is laid between them at a constant thickness to form a multilayer base layer,
A plant body with good root growth is planted or sown and grown to make a root-developed mat body with roots. A slope stabilization method that is reinforced by roots. 2. A rod-shaped root of a root that has been developed by forming a base layer in which a tube or tube is filled with a growth substrate, and planting or sowing a plant with good root growth at the end to grow the root. Slope stability characterized by reinforcing rods by root growth by arranging rods at predetermined intervals near the slope in the process of forming a body and constructing embankments or cut slopes, or inserting rods into drilling holes Construction method. 3. The slope stabilizing method as described above, wherein a mat body or a rod-shaped body reinforced by a reinforcing material such as a wire mesh, a net or a geotextile is used as the base layer. 4. The slope stabilizing method using the mat body or rod body having a tubular body for ventilation or water supply in or around the mat body or rod body.