JPS6044455B2 - Thick layered vegetation base formation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention makes it possible to easily form a thick vegetation base by stretching a net with flexible protrusions into which fertilizer bags are inserted on a slope. It is about the method.

Recently, with the knowledge of improving the beauty of the landscape, it has become necessary to green the bedrock or hard soil slopes, which were previously thought to be possible.

Greening of bedrock or hard slopes requires artificially creating a thick vegetation base, and various methods have been tried.

When forming a thick vegetation base, it is necessary to take measures to prevent the vegetation base from sliding down, and the following two methods are generally used for construction.

(a) A method in which a frame is formed as a structure on bedrock or a hard slope, and the frame prevents the vegetation base from sliding down. A method in which the materials that form the vegetation base are adhered to rock or hard soil slopes using an adhesive, and the materials themselves are also adhered to each other to prevent them from sliding.

Method (a) has the advantage that the entire bedrock or hard slope is protected and the vegetation base is completely stabilized, but it requires large-scale construction and is very expensive.

(b) is easy to install because it simply involves spraying the base material, but since cement is the best adhesive, a large amount of cement is used as the adhesive, and the vegetation base becomes alkaline. Also, because it becomes too hard, plants do not germinate and grow vigorously, and in some cases they may not even grow.

In addition to these methods, a commonly used method is to stretch a wire mesh to act as a straddle to prevent the vegetation base from sliding down. In this case, it is necessary for the wire mesh to be located in the center of the vegetation base layer, but in reality, it comes in close contact with the slope, significantly reducing its effectiveness and often causing the vegetation base to slide down.

Furthermore, (a) co-germination, a phenomenon in which the hard-grown vegetation rapidly declines because there is no supply of fertilizer nutrients from the ground after growth was observed.

The present invention has been made in view of the above-mentioned drawbacks, and its objectives are to form a thick vegetation base that is easy to construct and prevent from falling, and to provide a method for supplying fertilizer nutrients over a long period of time. It is in.

The configuration of the present invention will be explained below based on the drawings. FIG. 1 is a sectional view showing a part of the protrusion-attached net-like body of the present invention. 1
The mesh can be made of chemical fibers, animal/vegetable fibers, or metal, but polyethylene mesh and plastic mesh are the most suitable because of their ease of construction, durability, and strength. Appropriate.

In addition, for sites where extremely strong strength is required, a plated metal net or a vinyl-coated net is preferable. All of these nets are commercially available and have the same specifications and accessories as regular nets.

For the protrusion, a net-like vibrator made of flexible plastic, wire mesh, etc. (enlarged view A in Figure 3) or a perforated plastic vibrator 4 (enlarged view B in Figure 2) can be used. Fertilizer bag 2 is a cylindrical bag made of plant or chemical fibers, paper, etc., and is filled with fertilizer, mainly slow-release fertilizer (in some cases, soil conditioners are also filled with the fertilizer). Insert. FIG. 3 is an enlarged view of A and B in FIG. 2, showing two examples: a net-like vibrator and a perforated plastic vibrator.

The protrusions are attached to the net described above in rows at a pitch of 50 to 100 cm, as shown in FIGS. 2 and 4, by hook rings 5 or with wires to complete the protrusion-attached net used in the present invention.

Next, the construction method of the present invention will be explained.

The protrusion-attached net-like body is hung from the shoulder of the slope so that the protrusions are at the bottom and the net is at the top, and is stretched using a generally known method for stretching a net such as a rockfall prevention net.

Once the protrusion attachment net is tensioned, the L-shaped anchor 6
to make the protrusion completely adhere to the slope. Once the above work has been completed, the vegetation base material 8, mainly consisting of seeds and soil, is sprayed onto the projection-attached net with a wet cement gun or a snake pump sprayer to a thickness that matches the site conditions. Form the foundation.

Typical vegetation substrates used are clay loam, sand,
These are peat moss, organic compost, and chemical fertilizers, and these are mixed appropriately and used.

If the slope is very steep, a very small amount of cement may be added to the vegetation substrate described above.

If an asphalt emulsion or vinyl acetate emulsion is sprayed after spraying the vegetation base material, the surface of the sprayed vegetation base material will not cause gallier erosion due to rainwater. Although the configuration of the present invention has been described above, the present invention has the following features:
A net-like structure with protrusions made in advance at a factory or the like is delivered to the site and constructed to the same extent as general rockfall prevention, creating a foundation that prevents the washing away of vegetation base materials and the collapse of slopes.

Therefore, the construction work can be completed quickly and at a very low cost. In addition, since the stretched protrusion attachment net is composed of a chemical fiber net and a vibrator made of polyethylene or the like, it easily adapts to the shape of the slope, and since it does not rot, it can maintain its strength over a long period of time.

Furthermore, in the present invention, when the protrusions stick to the slope and the net becomes floating, if the vegetation base material is sprayed, the net will be located at the center of the thickness of the vegetation base material and will meet the protrusions. It is possible to completely stop the loss of vegetation base material.

Moreover, since the protrusions are filled with fertilizers, mainly slow-release fertilizers, as the plants grow, the fertilizer is gradually replenished, allowing the plants to flourish over a long period of time.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a part of the protrusion-attached net-like body of the present invention. FIG. 2 is a front view of the projection-attached net-like body of the present invention,
3A and 3B are enlarged views of the circular portion of FIG. 2, respectively. FIG. 4 is a sectional view showing the construction method of the present invention. In the figure, 1 is a net, 2 is a fertilizer bag, 3 is a net-like vibe, 4 is a perforated plastic vibe, 5 is a hook ring, 6 is an anchor pin, 7 is a slope, and 8 is a vegetation base material.

Claims (1)

[Claims] 1. A projection-equipped mesh body, in which flexible projections into which a fertilizer bag filled with fertilizer is inserted, is attached to the mesh body, is stretched on a slope with the projections at the bottom, and plant seeds are placed on top of it. A method for forming a thick vegetation base, characterized in that a vegetation base material mainly composed of soil is sprayed, and a net-like body is positioned in the middle of the sprayed base material.