JPH0548821B2 - - Google Patents

Description

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

[Prior Art] Slope stability varies depending on geology, weather, slope conditions, etc., and methods for stabilizing slopes include collapse prevention, ground improvement, drainage, and slope protection.

As conventional slope stabilization methods, a method of spraying cement onto a slope and a method of planting plants on a slope are known.

[Problem to be solved by the invention] Among the conventional methods mentioned above, the cement spraying method on slopes is an economical method that can be applied even on steep slopes in order to prevent weathering and collapse of slopes and improve its stability. However, after construction, the slopes are painted with a gray color similar to cement, creating a disproportion with the surrounding area, which not only looks bad, but also has restrictions on construction due to aesthetic reasons.

On the other hand, the vegetation method of planting plants on the slope has the effect of not creating a disproportionate effect on the surrounding landscape, unlike the above-mentioned cement spraying method. There are various methods for this vegetation construction method, but the most commonly used is the seed spraying method.
The seed spraying method is widely used because it is easy to apply, seeds suitable for the site can be selected, the landscape after construction is similar to nature, and maintenance and repair is easy. It was impossible to spray seeds on the 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 a problem in that 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 problems of the conventional methods described above, 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. , it is possible to protect the slope even before the roots take root and prevent seeds from drifting away, and furthermore, the strength of the slope can be improved and stabilized by synergistic reinforcement of the slope by vegetation and hardening of soil cement. To provide a slope stabilization method.

[Means for Solving the Problems] In order to achieve the above object, the slope stabilization method of the present invention is based on the method of stabilizing a slope by adding plant seeds in advance to contaminants such as soil, humus, fertilizer, and fibrous materials. The method is characterized in that the mixed substance containing seeds in advance is mixed into soil cement, which is a mixture of local soil and cement, and is sprayed onto a slope to cause the seeds to germinate.

[Operation] Spray seeds mixed with soil cement onto a slope using a spraying device, germinate the seeds, harden the soil cement, reinforce the slope with soil cement, and allow the germinated plants to take root. Also, soil cement hardens to a certain extent until it germinates and takes root, preventing the seeds from being washed away by rain. The water in the cement allows for effective germination, and the growth of the germinated plants allows the reinforced slope to blend naturally with its surroundings.

In addition, since soil cement, which is a mixture of local soil and cement, is sprayed, there is no difference between the areas where soil cement has been sprayed and other soil areas at the site. In addition, plant seeds are mixed in advance with contaminants such as soil, humus, fertilizer, and fibrous materials, and this pre-mixed contaminant is mixed into soil cement, so that the plant seeds are directly mixed into the cement. It is now possible to germinate in a favorable germination environment where it is difficult to touch the ingredients and protected from contaminants such as soil, humus, fertilizer, and fibrous materials.

[Examples] The present invention will be described in detail below based on Examples. Soil cement is soil mixed with cement and water. One or more types of seeds are mixed in this soil cement, and when the soil cement is sprayed onto the slope, the seeds are also sprayed at the same time. In addition, the soil mixed in with the soil cement (ie, soil) should be local soil so that the color of the soil does not look out of place with other parts. In addition, in order to mix plant seeds into soil cement, instead of mixing plant seeds directly into soil cement, it is necessary to use soil suitable for plant growth, humus soil, fertilizer, peat, etc.
Plant seeds are also mixed in advance with fibrous substances such as fiber waste, and one or more types of these substances are mixed into soil cement. By doing this, compared to mixing plant seeds directly into soil cement,
Plant seeds are less likely to come into direct contact with cement components, allowing them to germinate while being protected from contaminants.

Thus, soil cement mixed with the above-mentioned seeds is sprayed onto a slope, and as the soil cement gradually hardens, the seeds germinate. In this case, the presence of soil, water, soil, soil, humus, fertilizer, peat, fiber waste, and other fibrous substances in the soil cement will allow the seeds to germinate well and take root, and will also allow the seeds to germinate. During this time, the soil cement hardens to some extent, which prevents the seeds from washing away even when it rains. Then, when the soil cement hardens and the sprouted plants grow, the soil cement improves the slope and increases its strength.
The strength of the slope is also increased by the roots of plants, and furthermore, the growth of plants can create a natural landscape that harmonizes with the surrounding landscape.

In addition, during normal seed spraying, a very small amount of cement may be mixed in as a binder to improve seed adhesion; Since it only serves to protect the slope with vegetation alone, 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.

[Effects of the Invention] In the present invention, soil cement mixed with plant seeds is sprayed onto the slope as described above, and the seeds are germinated, so that the slope can be improved and reinforced with the soil cement. Slopes can also be reinforced by the germinated plants putting down roots, which has an excellent reinforcing effect on slopes.Also, the soil cement hardens to a certain degree between the time it germinates and the roots take root. It can prevent seeds from being washed away by rain, etc., and the water in the soil cement allows for effective germination. Furthermore, as the germinated plants grow, the reinforced slope It is possible to maintain a natural state in harmony with the surroundings.

In addition, since soil cement, which is a mixture of local soil and cement, is sprayed, there is no difference between the areas where soil cement has been sprayed and other soil areas, and a finish that is in harmony with the local conditions can be achieved. , plant seeds are mixed in advance with contaminants such as soil, humus soil, fertilizer, fibrous materials, etc., and this pre-mixed contaminant with seeds is mixed into soil cement, so it can be said that it is mixed in soil cement. Plant seeds can germinate in a favorable germination environment where they are unlikely to come into direct contact with cement components and are protected from contaminants such as soil, humus, fertilizer, and fibrous materials.

Claims (1)

[Claims] 1. Plant seeds are mixed in advance into mixed materials such as soil, humus, fertilizer, and fibrous materials, and this mixed material containing seeds is mixed into soil cement, which is a mixture of local soil and cement. A slope stabilization method characterized by spraying onto the slope to cause seeds to germinate.