JPH02236314A - Stabilizing method for slope - Google Patents

Abstract

PURPOSE:To enhance the strength of slopes by spraying soil cement mixed with plant seeds over the slopes, and having the seeds germinate. CONSTITUTION:Seeds are mixed into soil cement prepared by mixing cement, water and soil (humus soil, fertilizer or fibrous substance may be added), and sprayed over slopes with spraying devices to have the seeds germinate and the soil cement harden. This makes it possible to reinforce the slopes and prevent the seeds from being washed away with rain, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for stabilizing slopes such as slopes.

[Jumei's technology] Slope stability varies depending on geology, weather, slope conditions, etc., but methods for stabilizing slopes include collapse prevention, ground improvement, drainage, and slope protection.

Known methods for stabilizing slopes include spraying cement on slopes and planting plants on slopes. [Problem to be solved by the invention 1 Among the above-mentioned examples, the method of spraying cement onto slopes is an economical method that can be applied even on steep slopes in order to prevent weathering and collapse of the slope and to increase its stability. However, after construction, the surface of the needle is painted in a cement-gray color, making it look unsightly and unbalanced with the surrounding area, and in some places, construction is prohibited due to aesthetic reasons.

On the other hand, the vegetation construction method of planting plants on the slope has the effect of not creating any imbalances with the surrounding reeds, like the cement spraying method described above.

There are various methods for this vegetation construction method, but the seed spraying method is the most commonly used. The external seed blowing method is easy to apply, and seeds suitable for the site can be selected.
It is widely used because the landscape after construction resembles that of nature and it is easy to maintain and repair, but it is impossible to spray seeds on steep slopes, hard soil, or bedrock. Another problem with the seed spraying method is that it takes several days for the seeds to germinate, take root, and protect the slope, and during that time they are often washed away by rain. Furthermore, this seed spraying method had one problem: it was inferior to the cement spraying method in terms of increasing the strength of slopes.

The present invention was invented in view of the above-mentioned problems of the conventional method, and its purpose is to achieve the advantage of the seed spraying method that the landscape after construction is the same as that of nature. However, even when roots grow, the slope can be protected and the seeds will not be washed away, and the strength of the slope will be improved and stabilized by the gradual reinforcement of the slope by vegetation and hardening of soil cement. The purpose is to provide a slope stabilization method that can be used to stabilize slopes. [Means for Solving the 9 Problems] In order to achieve the above object, the stabilization method of the slope surface of the present invention sprays soil cement F mixed with plant seeds onto the slope surface to cause the seeds to germinate. ．． Furthermore, humus soil may be mixed into the soil cement.

Also, fertilizer may be mixed into soil cement. Furthermore, a4I quality may be mixed into the soil cement.

[Effect] Seeds mixed with soil cement are sprayed onto the slope using a spraying device, causing the seeds to germinate and hardening the soil cement. The soil cement strengthens the slope, and the soil cement also strengthens the slope by allowing the germinated plants to spread their roots. In addition, the open soil cement is hardened to a certain extent until it germinates and takes root, which prevents the seeds from being washed away by rain. The water allowed for effective germination, and as the germinated plants grew, the reinforced slope was able to maintain a natural state in harmony with its surroundings. By mixing one or more of humus soil, fertilizer, or fibrous material into soil cement, it has become possible to successfully germinate seeds.

[Examples] The present invention will be described in detail below based on Examples. Soil cement is a mixture of soil, cement and water. One or more seeds are mixed in this soil cement,
When soil cement is sprayed onto a slope, seeds are also sprayed at the same time. In addition, it is preferable to use local soil as the soil mixed into soil cement (i.e., fill) so that the color of the soil does not look out of place with other parts.
If soil cannot be procured locally, in other cases soil may be transported to the site from other areas. Furthermore, if the soil is not suitable for plant growth, add soil. Furthermore, it is preferable to mix humus soil, fertilizer, and fibrous materials such as beets and fiber waste as necessary. When one or more of these soil, humus soil, fertilizer, fibrous material, etc. are mixed, it is more preferable to mix seeds into these materials in advance.

Therefore, soil cement mixed with the above seeds is sprayed onto the slope, and as the soil cement gradually hardens, the seeds germinate. In this case, the soil, water, or soil in the soil cement,
The presence of humus soil, fertilizer, and fibrous substances such as beets and fibers will allow the seeds to germinate well and take root, and the soil cement will harden to some extent before germination, so it will not be exposed to rain, etc. This prevents the seeds from washing away even when it rains. Then, as the soil cement hardens and the germinated plants grow, the soil cement improves the slope and increases its strength.The strength of the slope also increases as the plants stretch, which in turn helps the plants grow. This can be considered a natural 1'-theory that harmonizes with the surrounding landscape.

In addition, in order to improve the adhesion of seeds during normal seed spraying, it is possible to mix a very small amount of cement as binggu, but in this case, the cement only serves as binggu for seed adhesion. First, since the slope is only protected by vegetation, it cannot be used because it does not physically reinforce the slope like the soil cement of the present invention, and the reinforcement strength of the slope is weak. [Effect of the invention 1 In the present invention, as described above, soil cement mixed with plant seeds is sprayed onto the slope surface to cause the seeds to germinate, so the slope can be improved and reinforced with soil cement. At the same time, the soil cement can be strengthened by the roots of the germinated plants, which has an excellent reinforcing effect on the slope.In addition, the soil cement hardens to a certain degree from the time it germinates until it takes root, so it is protected from rain. It is possible to prevent seeds from drifting away, and the water in the soil cement allows for effective germination. Furthermore, as the germinated plants mature, the reinforced slope It is possible to maintain a natural state in harmony with the surroundings.

Further, by mixing one or more of humus soil, fertilizer, or fibrous material into the soil cement, seeds in the soil cement can be successfully germinated.

Agent: Patent Attorney Choshichi Ishida

Claims (4)

[Claims] (1) A slope stabilization method characterized by spraying soil cement mixed with plant seeds onto the slope and causing the seeds to germinate. (2) The slope stabilization method according to claim 1, characterized in that humus soil is mixed into the soil cement. (3) The slope stabilization method according to claim 1 or claim 2, characterized in that fertilizer is mixed into the soil cement. (4) The slope stabilization method according to claim 1, 2, or 3, characterized in that a fibrous material is mixed into the soil cement.