JPH116155A - Greening method for slope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the strength until vegetation grow up and decompose completely finally so as not to require the after treatment, by preparing a biodegradable plastic packaging bags for respective greening materials and cutting them to mix with the greening base materials and spraying them onto a slope to reclaim it. SOLUTION: A packaging bag 20 is brought in an execution site as a base material for growing plants, seeds, a preventing material against errosion, fertirizer, or the like as greening materials for a slope, are contained in the bag. In this time, a biodegradable plastic bag is used for the packaging bag 20. Respective materials 10 are put on a belt conveyor 14a and vacant packaging bags 20 are cut in pieces by a shredder 18. The shredded pieces is transferred to a mixer 16 by the belt conveyor 14a and mixed with the materials 10. This mixture is fed in a spray device 12 through a belt conveyor 14c and sprayed on the slope face. The shredded biodegradable plastic material is gradually decomposed in the earth without hindrance against the growth of the plants after it has been sprayed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope revegetation method, and more particularly, to a slope revegetation method taking into account measures against industrial waste after construction.

[0002]

2. Description of the Related Art In a slope (including slope) greening method, for example, necessary materials such as seeds, a growth base material, a fertilizer and water are stirred and mixed at a construction site, or water is added to the mixed material to form a slurry greening. A base material is prepared and sprayed on a slope by a spray device, thereby fixing the greening base material and greening the slope. However, after this construction,
Packaging bags of various materials such as growth base materials are left as industrial waste. Usually, these packaging bags are sized to accommodate an amount that can be carried by an operator in consideration of transportation convenience. Therefore, a large number of material bags are required for large-area slope construction, and as a result, a large amount of packaging bags remain after construction. Conventionally, most of these packaging bags are made of general-purpose polyethylene, polypropylene, or the like.

[0003]

However, in recent years,
Environmental issues have been taken up as major social issues,
In particular, regarding the disposal of hard-to-decompose ordinary plastic packaging bags by incineration or landfill, it has been pointed out that there is a risk of environmental pollution such as generation of harmful substances due to incineration and remaining undegraded in nature. Therefore, in various fields, a method for safely treating and recycling industrial waste, a method for suppressing the generation of industrial waste itself, and the like are being studied. In view of such a current situation, even in the field of the slope revegetation method that contributes to the improvement of the natural environment, the original purpose may be lost if the construction adversely affects the environment. Therefore, in performing the slope greening method, it is extremely significant to take measures to suppress the generation of industrial waste or to safely reuse it.

[0004] In view of the above situation, an object of the present invention is to safely reuse a packaging bag of construction material in a slope greening method without adversely affecting the environment. It is a further object of the present invention to reuse packaging bags of construction material in a manner that contributes to the slope greening method.

[0005]

Means for Solving the Problems To achieve the above object, a slope greening method according to the present invention is directed to a slope greening method in which a greening base material containing various materials such as a growth base material is sprayed on the slope to form the greenery. Forming a packaging bag of each of the materials from biodegradable plastic, cutting the empty packaging bag after removing the material into cut pieces, mixing the cut pieces into the greening base material, and then forming the greening group. Spray the wood. In the slope greening method according to the present invention, it is preferable that the packaging bag is cut into strips, short fibers, or rings. Further, in the slope greening method according to the present invention, it is preferable that the greening base material mixed with the cut pieces is spray-formed using a mortar concrete spraying machine or a slurry pump.

[0006]

A cutting piece of a packaging bag made of a biodegradable plastic is mixed with a greening base material and sprayed together with the greening base material. After the construction, the cutting fragments contribute to the securing of the physical strength of the greening base material as a linking material in the period until the plant is established, and are eventually completely decomposed by microorganisms in the soil.

[0007]

FIG. 1 is a diagram showing an example of an embodiment of the present invention. Individual construction materials 10 used for slope greening
Has growth base materials, seeds, erosion control materials, fertilizers, etc.
Each of these is brought into the construction site in a state of being contained in the packaging bag 20. A mixture of these is a greening base material. In the present invention, the packaging bag 20 is made of a biodegradable plastic. Each construction material 10 is transferred to the belt conveyor 1
4a, empty packaging bags 20 are shredded into shredders 18.
And cut into pieces. The shredder 18 is installed near the belt conveyor 14a. The cut pieces of the packaging bag 20 are conveyed from the shredder 18 to the mixer 16 by the belt conveyor 14a. Alternatively, as in another embodiment shown in FIG. 2, the paper is conveyed from the shredder 18 to the mixer 16 by another belt conveyor 14b. In the mixer 16, the construction material 10 transported by the belt conveyor 14a or 14b and the cut pieces 20 of the bag are mixed and stirred. After preparing the greening base material by mixing the cutting pieces of the packaging bag and the individual construction materials, the greening base material is transferred to the belt conveyor 14c.
To the spraying device 12 for spraying on the slope.

[0008] The simplest method of implementing the present invention can be dealt with simply by adding a shredder to a conventional spraying plant. For example, a shredder may be installed in the vicinity of a place where the bagged growth base material is put into the belt conveyor, and the worker may open the growth base material bag and place it on the belt conveyor, and then shred the empty bag. .

[0009] The cut and mixed biodegradable plastic is gradually decomposed in the soil after being sprayed with the greening substrate. Therefore, the growth of the plant is not hindered at all, and the water circulation in the soil and the soil environment are not adversely affected. As the biodegradable plastic used in the present invention, any of a natural polymer type and a chemically synthesized type can be used, but those which are easily decomposed by soil bacteria are desirable. As long as it is decomposed in a period of one to two years until the plant is established, the purpose of use can be sufficiently satisfied.

As a method of cutting the packaging bag, there is a method of cutting into a square or rectangular strip. With such a shape, it can be efficiently mixed with the greening base material. The smaller the cutting size, the faster the disassembly.

As another cutting method, there is a method of cutting a packaging bag into short fibers. Mixing the short fiber, that is, the strip cut into the greening base material has an effect of increasing the strength of the greening base material as a connecting material. In particular, when short fibrous cut pieces are mixed, a fiber structure is formed in the greening base material after the construction, whereby the fibers are entangled in the base material to increase the bonding force. As a result, effects such as improvement of the erosion resistance of the greening base material and prevention of sliding of the greening base material on a steep slope are obtained.

The cutting dimension is not particularly limited as long as it does not interfere with the smooth transfer to the spraying device and the spraying operation.
As an example, when cutting into a strip shape, a width of less than about 1 cm is practical, and a width of less than about 5 mm is preferable. Further, a thread formed by cutting into a thinner shape than a band shape can also be used.

Further, as shown in FIG. 3, if the shape or size of the empty bag 20 is appropriate, the bag can be cut laterally to form a ring-shaped cut piece 22.

The present invention can be applied to the construction of a greening base using a mortar concrete spraying machine which blows a greening base material by compressed air. In this case, it is preferable that before the greening base material containing the cut pieces is put into the spraying machine, the mixture is kneaded with a mixer or the like and sufficiently mixed with other compounding materials before spraying.

As another embodiment, a greening base material including the cut pieces can be sprayed using a slurry pump. Slurry pumps include squeeze pumps and plunger pumps. In this case, the cut pieces and the greening base material were mixed with water in a tank and stirred in a muddy state.
The slurry is pumped and sprayed by a slurry pump. in this case,
Although the pumping force is relatively weak, it is possible to spray without clogging by reducing the size of the cutting pieces. In the case of a mud-like or slurry-like greening base material, the erosion resistance and strength of the base material can be improved by mixing short green fiber-processed base material, and the run-off of the formed base material can be prevented.

[0016]

According to the present invention, the packaging bag of each material of the greening base material is made of biodegradable plastic, which is cut, mixed with the greening base material and applied, so that the mixed cut pieces are reduced. It contributes to the improvement of the physical strength of the greening substrate until the plant is established, and is eventually completely decomposed. In this way, the unused packaging bag can be safely and effectively reused. Needless to say, not only is there no toxic gas generated by incineration and there is no residue in the soil, but also the disposal work and disposal cost of industrial waste, which were conventionally required, are eliminated.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of an embodiment of the present invention.

FIG. 2 is a diagram showing another example of the embodiment of the present invention.

FIG. 3 is a diagram illustrating an example of a method for cutting a packaging bag according to the present invention.

[Description of sign]

 DESCRIPTION OF SYMBOLS 10 Greening base material 12 Spraying apparatus 14a, 14b, 14c Belt conveyor 16 Mixer 18 Shredder 20 Packaging bag 22 Cutting pieces

Claims (6)

[Claims] 1. A slope revegetation method in which a revegetation base material including each material such as a growth base material is sprayed on a slope to form a packaging bag of each material from a biodegradable plastic. Cutting the empty packaging bag into cut pieces, mixing the cut pieces into the greening base material, and spraying and forming the greening base material. 2. The slope greening method according to claim 1, wherein the packaging bag is cut into strips. 3. The method according to claim 1, wherein the packaging bag is cut into short fibers. 4. The slope greening method according to claim 1, wherein the packaging bag is cut into a ring shape. 5. The slope revegetation method according to claim 1, wherein the greenery base material mixed with the cut pieces is spray-formed using a mortar concrete spraying machine. 6. The slope according to any one of claims 1 to 4, wherein the greening base material mixed with the cut pieces is mixed with water to be muddy, and spray-formed using a slurry pump. Greening method.