JPS605733B2 - Greening method for slopes etc. - Google Patents

Description

[Detailed description of the invention] The present invention relates to the construction of greening work carried out in samurai construction etc.
This is about creating a growth base on a slope or wall surface (herein referred to as a slope, etc.).

In the conventional greening method, thick-layer greening is applied to soilless slopes, and the goal is to cover the entire surface with vegetation.

For example, materials containing seeds, fertilizers, fertilizers, soil conditioners, curing agents, and binders are sent through a spraying machine;
It is being sprayed onto the ground where wire mesh, etc. have been laid.

The thickness of this spraying is usually about 4 to 15 mm. The disadvantages or difficulties of conventional methods are as follows.

(i) On locally uneven slopes or overhangs, direct sunlight can cause damage such as high temperatures and dryness, and depending on the wind direction, rain cannot be absorbed.
Poor plant growth or barren surfaces are occurring.

Originally, the thicker the layer, the better the conditions for plants.
There is a limit to the stability of the customer itself due to spraying in the above-mentioned areas, and it is also economically difficult.

(ii) The goal is to achieve full coverage of vegetation, including native plants,
When exotic plants and woody plants are introduced at the same time, differences in their individual growth rates and forms tend to cause countermeasures among the plants, resulting in stronger plants remaining.

Sometimes, only one species of vegetation exists. This makes it difficult to form the desired variety of vegetation communities. In addition, as plants grow denser, the amount of sunlight on the lower leaves and the ground surface drastically decreases, making photosynthesis impossible, which not only shows signs of poor growth, but also makes it difficult for native plants to invade and establish themselves. Cheap.

(iii) If the entire surface of a thick-walled roof is constructed with a smooth finish, rainfall and snow will concentrate on the extreme slopes of the ridges and valleys of the ground, causing soil erosion. There are some easy drawbacks.

(M) In the thick scrap soil spraying method using cement, the bleeding phenomenon that occurs during spraying causes the surface to fall below zero.
At a depth of about 5 cm, the concentration of cement particles can solidify and prevent plant germination.

This may be due to the difficulty in achieving a uniform surface finish due to artificial spraying.

M There are many types of plants commonly used on slopes that exhibit the property of rising as they grow.

This has the disadvantage that cracks tend to occur in the soil surface at an early stage as a result of the top plate system developing and rising to the ground surface.
Therefore, an object of the present invention is to provide a method for greening slopes, etc., which can eliminate the drawbacks of the above-mentioned conventional techniques and suitably green slopes, etc.

The greening method according to the present invention uses a vegetation net that has been laid in advance when constructing a thick-layer greening method in which greening growth base materials containing fertilizers, fertilizers, soil conditioners, curing agents, etc. are sprayed onto slopes, etc. A tubular body containing a vegetation bag containing plants, soil, and fertilizer is temporarily fixed to a wire mesh or a ground surface, and after spraying, the tubular body is removed, leaving the vegetation bag behind. It is supposed to be done.

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

There are three steps in the greening method according to the present invention, firstly,
A tubular body in which a vegetation bag containing plants, soil, fertilizer, etc. is temporarily fixed is temporarily fixed to a previously laid vegetation net, wire mesh, or ground surface in a well-fitting manner.

Second, perform the customer's spraying. In this case, spraying of plastic soil cement, mortar, concrete, etc. is carried out depending on the slope environment, the goals of the vegetation appearance, and the stability of the soil.Thirdly, the tubular body is removed, leaving the vegetation bag. It has been found that the above problem can be solved by this method.As the material, it is possible to use conventionally known afforestation growth base materials including plants, fertilizers, soil conditioners, curing agents, etc. can.

Moreover, even if a greening growth base material that does not contain plants is sprayed to create a striped plant growth base using only the vegetation bags, the tubular body 6 is a flexible rope-like material, and the 2
The size should be about 0 to 5 mm, and it should be made of a durable material that is resistant to water and sunlight. Moreover, a reusable tubular body is used. A vegetation bag body 7 is temporarily fixed to this tubular body 6. The bag is made of a net-like material, and plants including seeds, fertilizers, etc. are placed inside the bag. As for the types of plants, plants that grow slowly, including trees, are usually included. The vegetation net or wire mesh to be laid on the slope should be of the same type as the mud blowing vegetation method or the mortar spraying method. In the case of wire mesh, for example, a rhombic wire mesh 14, 52 x 52 side should be used, and the anchor bolts should be 9
to the ground 1 to fix the wire mesh 8.

Next, regarding the spraying of the soil 10, based on the conventional thick layer spraying, the adhesive or sticky agent is strengthened so that the growth conditions such as a steep slope are not satisfied.

For example, increasing the amount of cement or clay content, such as plastic soil cement spraying. In addition, on straight walls, mortar or concrete will be sprayed to prevent weathering. After spraying the soil 10, the tubular body 6 is removed leaving the vegetation bag body 7, and the groove 1 is
form 1.

The grooves 11 provide favorable conditions for the growth of the plants 12. The temporary fixing arrangement of the tubular body 6 on which the vegetation bag body 7 is temporarily fixed on the slope is as follows.
As shown in the figure, on a smooth surface, the tubular bodies 6 are placed on contour lines, and the spacing between the tubular bodies 6, which are temporary structures of the vegetation bags 7, is adjusted according to the height of the plants.

A surface with a ridge 4 or a valley 5 is sloped in the direction of the ridge part 4 so that rainwater and the like can flow over the entire surface. The tubular body 6 obtained by temporarily disassembling the vegetation bag body 7 can adopt a method in which it has a continuous shape from the shoulder 2 to the foot 3, or a method in which it does not have a continuous shape. According to the present invention, the following advantages can be obtained.

(i) Even if the thickness of the soil is reduced, the growing point of the plant is located inside the soil and is protected and able to withstand adverse conditions from the outside. Direct damage from avalanches and falling rocks from outside the slope can be avoided. (ii)
After the tubular body is removed, the shape becomes a groove, which disperses surface water such as rainfall and removes excess water to the outside of the slope.

At the same time, it is supplied to the vegetation bag to improve growing conditions. (
lil) For initially slow-growing species such as woody plants,
The curing effect is enhanced by storing it in the vegetation bag.

(M) If a permanent fertilizer is placed at the position where the tubular body is removed at the shoulder of the slope, it will dissolve as water flows down and be absorbed directly into the plants, reducing waste. In addition to soilless bedrock, existing mortar and concrete surfaces can be considered, as well as building walls, road surfaces such as soundproof walls on expressways, and even some overhangs.

[Brief explanation of the drawing]

1A and 1B show a first embodiment of the method for greening slopes, etc. according to the present invention; FIG. 1A is a plan view, and FIG. FIG. 2 is a plan view showing the arrangement of a rope-shaped tubular body to which a vegetation bag is temporarily attached. 1... Earth, 2...
...Shoulder of the slope, 3...0 Bottom of the slope, 4...Ridge,
5...- Valley part, 6... Tubular body, 7......
Vegetation bag body, 8... wire mesh, 9... anchor bolt, 10... customer, 11... groove, 12...
…plant. Figure 1 Figure 2

Claims (1)

[Scope of Claims] 1. When constructing a thick layer of soil revegetation work in which afforestation growth base materials containing fertilizers, soil, soil conditioners, curing agents, etc. are sprayed onto slopes, etc., the use of pre-laid vegetation nets or A tubular body containing a vegetation bag containing plants, soil, and fertilizer is temporarily fixed to a wire mesh or the ground surface, and after soil is sprayed, the tubular body is removed, leaving the vegetation bag behind. A greening method for slopes, etc., characterized by: 2. A method for greening slopes, etc., as set forth in claim 1, characterized in that plants are mixed in the greening growth base material in advance and sprayed onto slopes, etc.