JPH057491B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a greening method, and more particularly to a greening method that prevents rainwater from accumulating within a frame.

[Conventional technology]

Traditionally, the frame construction method used for slope greening is the so-called soil method, in which impermeable concrete is sprayed onto the slope to create a frame structure, and greening base material is sprayed into the frame to achieve greening. Concrete construction method is known.

Furthermore, Japanese Patent Application Laid-open No. 63-217019 discloses a slope protection method in which a net is installed horizontally within a water-impermeable concrete frame.

[Problem to be solved by the invention]

However, the impermeable concrete frame used in the so-called soilcrete construction method is formed of frames with four equal sides, but because it is an impermeable frame, water accumulates at the bottom of the frame and erodes the ground. There were drawbacks such as water flowing over the frame during heavy rain and washing away the greening base material, and a drainage pipe installed at the bottom of the frame becoming blocked and not draining water. Furthermore, since the impermeable frame is made of concrete, greening cannot be done, and the frame is clearly distinguishable from the other, making it look artificial and unnatural.

On the other hand, the concrete frame in the slope protection method of JP-A No. 63-217019 is impermeable, so not only does it have the above drawbacks, but it also requires a lot of effort to install other nets. Although anti-corrosion treatments such as matting are applied, corrosion is unavoidable, and as the corrosion progresses, the greening base material is washed away on steep slopes, and the connecting materials that fix the net corrode and the net sag.
When installing the net and spraying concrete, there were problems in construction, such as the net being destroyed by the spray hose.

[Purpose of the invention]

Therefore, the purpose of the present invention is to prevent rainwater from accumulating inside the frame, preventing the frame and the ground from being eroded by running water, preventing the greening base material from being washed away, and allowing plants to take root on the frame itself. Our goal is to provide greening methods.

[Means to solve the problem]

The present inventor has arrived at the present invention as a result of intensive studies to achieve the above object, and the greening method according to the present invention involves spraying water-permeable concrete in which water-permeable fibers are mixed into the ground. The present invention is characterized in that a lattice-like frame is made, and greening is achieved by spraying a greening base material into the lattice-like frame and the inside of the frame.

In addition, the greening method according to the present invention includes spraying permeable concrete mixed with permeable fibers into the ground to create a lattice-shaped frame, and in the lattice-shaped frame, horizontal partition frames and vertical partition frames are installed. The method is characterized in that one or both of these frames are made, and a greening base material is sprayed onto these frames and the inside of the frame to achieve greening.

Furthermore, the greening method according to the present invention is characterized in that the lattice frame, horizontal partition frame, and vertical partition frame in the above-mentioned greening method are reinforced with at least rust-proof wire mesh, rust-proof reinforcing bars, and reinforcing fibers.

〔Example〕

Hereinafter, an example of the greening method of the present invention will be explained based on the accompanying drawings.

Fig. 1 is a perspective view of the main part showing a state in which a slope has been greened by an example of the construction method of the present invention, Fig. 2 is a sectional view of the main part of the same, and Fig. 3 is a lattice-like frame produced using the same method. FIG. 4 is a perspective view of main parts showing a state in which horizontal and vertical partition frames are added to the lattice-like frame described above.

(Arrangement of reinforcing bars) In the greening method of the present invention, first, rust-proofed reinforcing bars 1 are arranged in a grid pattern along the slope 2 (see Figure 3), and the reinforcing bars 1 are placed at predetermined positions. Secure with an anchor. The rust-proofed reinforcing bars are reinforcing materials, and may be used as a set of two, or as a set of three or more, or as a single reinforcing bar. The reinforcing bars were rust-proofed using a known method.

(Production of lattice-shaped frame body) Next, water-permeable concrete 3 mixed with water-permeable fibers is sprayed to cover the reinforcing bars 1 to form a lattice-shaped frame body 4 as shown in FIG. 3.

The water-permeable fibers used in the present invention include those that exhibit water permeability because their fibrous properties are corrosive;
Any material that is not corrosive but itself exhibits water permeability can be used. Examples of the former include, for example, rice straw, wheat straw, katak, leaves and stems of other plants cut into short lengths, and examples of the latter include vinylon fiber. In addition, rice straw, wheat straw, kaya, vinylon fibers, etc. may be used in bundles, and furthermore, they may be used as straw products such as straw ropes.

In addition to the above, in the present invention, in addition to the above, radish, tubers, pumpkins, carrots, bamboo shoots, green onions, cucumbers, eggplants, etc., as well as fruits that do not deform during concrete construction, such as tangerine peel, may be used. You can also do it. In addition, when using radish etc., it is preferable to use one with relatively low sugar content. If sugar enters the concrete and there is a risk of inhibiting the hardening of the concrete, make concrete by adding polymeric resins such as cellulose polymers or rubber latex to the concrete or water to be added to the concrete. This makes it possible to eliminate harmful effects by creating a state in which it is difficult to react with the sugar content of the fibrous body.

The size of the water-permeable fiber body is not particularly limited, but is preferably 50 to 5 mm, more preferably 30 to 20 mm.
mm.

Further, it is preferable that the water-permeable fiber body has a certain hardness without being deformed in the concrete until the concrete hardens. This is because concrete can be used whether it is soft or hard.

Preferred water permeable fibers in the present invention are rice straw or wheat straw cut into short lengths.

In the present invention, the mixing ratio of the concrete components used in the above-mentioned frame is: per 1 m ² of concrete, 20 kg to 50 kg of water permeable fibers, 300 kg to 500 kg of cement,
Other additives preferably range from 0 kg to 20 kg.

When the frame made as above is large,
Rust-proof reinforcing bars 5 and 6 are placed inside the frame, and concrete is sprayed in the same manner as above to provide a horizontal partition frame 7 and a vertical partition frame 8 (see FIG. 4). Furthermore, a partition frame may be further provided within the frames 7 and 8.
Furthermore, although both of the frames 7 and 8 may be provided as shown, it is also possible to provide only one of them.

The frame of the present invention is preferably reinforced with reinforcing fibers, and examples of the reinforcing fibers include steel fibers and nylon fibers.

Further, the frame of the present invention may contain additives such as freeze-thaw preventive agents (for example, AE agents, polymer latex, etc.) as necessary.

The lattice-like shape of the frame of the present invention may be any shape as long as it is approximately equilateral, and may have some portions that are not equilateral.

(Spraying of greening base material) After manufacturing the lattice frame 4, horizontal and vertical frames 5, 6 as described above, wire mesh 9A is laid on the frames 4, 5, 6, and anchored. Fix it. This wire mesh may also be subjected to anti-rust treatment. Next, greening base material 9 is sprayed onto and into the frames 4, 5, 6.

In the present invention, the greening base material mainly includes humus soil (for example, peat moss having water-retaining properties), binder (resin or cement), seeds, and the like.

In addition, if it is possible that the fertilizer content may be uneven in the greening base material, plant growth can be appropriately managed by adding the minimum necessary amount of solid fertilizer such as ultra-slow-release coded fertilizer. .

As shown in FIG. 1, plants 10 are grown on the greening base material formed as described above. That is, not only on the greening base material on the frames 4, 5, 6,
Vegetation is also grown on the green base material inside the frame without distinction.

〔Effect of the invention〕

According to the present invention, the following effects are achieved.

(1) Because water-permeable fibers are mixed into the concrete, the water-permeable fibers corrode or due to their own properties, the concrete becomes effective material, and the lattice frame itself becomes water permeable. For this reason, precipitation (rainwater) is drained without stagnating inside the frame, so there is no root rot of plants, and the ground is not eroded, so slope collapse is eliminated.
In addition, since precipitation flows through the concrete without running down the surface of the greening base material, it does not damage the greening base material.

(2) In addition, plant roots can easily penetrate into the pores created by the corrosion of the water-permeable fibers or their own properties, and the roots can firmly take root in the concrete, preventing the greening base material from being eroded. can.

(3) Furthermore, the water-retaining properties of the pores provide a greening function, and the greening base material having the pores can be anchored by plant roots, allowing the entire surface to be greened.

(4) Also, since the frame is a concrete frame and does not corrode like netting, it is stable for a long time, and becomes even more stable when plant roots firmly take root.

(5) Since water does not accumulate between the frame and the ground, the frame does not deteriorate due to freezing and thawing. In other words, the frame has the function of retaining water and has performance suitable for vegetation, but since water is not retained within the frame, the permeability function relieves stress against freezing and thawing, making it durable against freezing. There is a nature.

According to the present invention, in addition to the above-mentioned effects, the design of the frame unique to the present invention can be changed freely, so that it can be designed to meet various requirements such as slope slope, topography, and environmental conditions.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the main part showing a state in which a slope has been greened by an example of the construction method of the present invention, Fig. 2 is a sectional view of the main part of the same, and Fig. 3 is a lattice-like frame produced using the same method. FIG. 4 is a perspective view of main parts showing a state in which horizontal and vertical partition frames are added to the lattice-like frame described above. 1: Rust-proof reinforcing bars, 2: Slope, 3: Concrete,
4: Lattice frame, 5, 6: Rebar, 7: Horizontal frame,
8: Vertical frame, 9: Greening base material, 10: Plant.

Claims (1)

[Claims] 1 Water-permeable concrete mixed with water-permeable fibers is sprayed onto the ground to create a lattice-shaped frame, and a greening base material is sprayed into the lattice-shaped frame and the frame for greening. A greening method characterized by measuring. 2. Spray permeable concrete mixed with permeable fibers into the ground to create a lattice frame, and create either or both of a horizontal partition frame and a vertical partition frame on the lattice frame; A greening construction method characterized by spraying a greening base material into these frames and the frames to achieve greening. 3. The greening method according to claim 1 or 2, characterized in that the lattice frame, the horizontal partition frame, and the vertical partition frame are reinforced with at least rust-proof wire mesh, rust-proof reinforcing bars, and reinforcing fibers.