JP3343710B2 - Vegetation base spraying method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a greening technique, and more particularly to a thick vegetation base material for greening and a spraying method thereof.

[0002]

2. Description of the Related Art A vegetation base material mainly composed of bark compost is sprayed onto bare slopes using a mortar gun, and a soil layer is coated on a well-grown pasture or the like to green the slopes. Are known.

[0003]

The above-mentioned vegetation base material and the technique for forming the same have the following problems. <B> To prevent erosion on the slopes, the vegetation base has been created by using organic matter to produce nutrients, and this has been dealt with immediately by greening, which is covered with fast-growing pastures. There is a need to introduce plant ecology close to nature. However, there are few types that are compatible with the soil environment of nutrients, and even those that are compatible with the soil environment of nutrients tend to be weakened by the apostle,
Introduce plant ecology close to nature, for example, due to the fact that plants can easily die due to the exploitation of oxygen and the generation of harmful gases by microorganisms, and the porosity in vegetation bases increases due to the decomposition of fertilizer components by microorganisms. Is difficult, and it has been pointed out that a review of the vegetation environment in which vegetation base materials are used as nutrients has been made. <B> On the basis of the above-mentioned point (b), it has been proposed to use a vegetation base material for the poor. The poorly grown vegetation base material is formed by adding a soil improving material such as bark compost to sand for washing and kneading the mixture with cement as a binder. However, when the amount of cement as a binder is reduced, the growth of the root system is improved, but on the other hand, the setting power of the vegetation base material is reduced and it tends to collapse, and conversely, when the amount of cement is increased, the setting power of the vegetation base material is reduced. On the other hand, the growth of the root system is deteriorated, and it is very difficult to satisfy both the stability of the vegetation base and the growth of the plant. <C> In terms of the transportability of the spraying machine, it is economical if soil and sand containing a large amount of silt and clay can be used, and the water retention is increased, which is desirable as a growth base. However, when the hose is transported by air, silt or clay increases in viscosity and adheres to the inside of the hose to easily cause an obstruction of earth and sand.
As described above, expensive fine aggregate (washing sand) is used in order to secure the transportability, and the cost for forming the vegetation base material is high. <D> Since sand washes do not contain silt or clay, the vegetation base after spraying has a compacted base tissue, and is hard and highly dry, thus lacking suitability as a vegetation base.

The present invention has been made in view of the above points, and an object of the present invention is to provide the following vegetation base material and a spraying method thereof. A spraying method for vegetation base material that improves accidental spraying by avoiding blockage accidents in hoses. Spraying method of vegetation base material with high retention of water and fertilizer, excellent antibacterial properties and excellent adhesion to slopes. A vegetation base spraying method that can create a more natural vegetation base. A vegetation base spraying method that can reduce the cost of vegetation base formation.

[0005]

The present invention, in order to solve the problems], in spraying method vegetation substrate a sediment containing dispersed fertilizer components by blowing in layers to construction vegetation foundation, soil and soil conditioner containing silt or clay a mixture of water absorbent material to reduce the apparent water content of soil, the earth and sand while mixing a water absorbent material and air transport, and wherein the spraying and mud into spray just before spraying the vegetation substrate It is a construction method. The invention also relates to a method of spraying a vegetation base material by spraying a layer of soil and soil in which a soil improvement material is dispersed to build a vegetation base, wherein the soil and sand containing silt or clay and an organic or inorganic soil improvement material are used . On the other hand, a water absorbing material is mixed, the soil and sand are conveyed by air while the water absorbing material is mixed, and muddy water containing clay minerals is added immediately before spraying to form muddy and sprayed, which is a vegetation base material spraying method. is there.

[0006]

Embodiment 1 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

<A> Spraying Apparatus FIG. 1 shows a conceptual view of the spraying apparatus. Reference numeral 10 denotes a stirring tank.
A stirring blade 12 that rotates when driven by a motor 11 is provided. The agitation tank 10 is capable of forcibly kneading soil and sand 20 fed by a belt conveyor, shovel car, or the like, a water absorbing material 21 and a soil improving material such as bark compost. An air pump 31 is interposed in the middle of the transfer hose 30 connected to the bottom of the stirring tank 10. The rotation of the motor 32 causes the air pump 31 to supply air into the transfer hose 30. The earth and sand 20 containing the water absorbing material 21 drawn out from the inside can be discharged from the spray nozzle 40 at the tip of the transfer hose 30. The air pump 31 is a known pump, and the transfer hose 30 includes a known flexible hose, a steel pipe, or the like.

<B> The muddy spray nozzle 40 has a liquid supply hose 5 in addition to the transfer hose 30.
0 is connected. In the middle of the liquid supply hose 50, the motor 5
A liquid supply pump 52 with 1 is inserted, and the liquid supply pump 52 can supply the muddy water 60 in the liquid storage tank 53 into the spray nozzle 40. The spray nozzle 40 can mix and discharge the earth and sand 20 containing the water absorbing material 21 supplied from the transfer hose 30 and the muddy water 60 supplied from the liquid supply hose 50. The muddy water 60 is sprayed by the spray nozzle 40.
In some cases, the negative pressure suction force generated in the inside may be used, or the flow may be supplied by flowing down using potential energy. still,
The mixing position of the earth and sand 20 including the water absorbing material 21 and the muddy water 60 is not limited to the inside of the spray nozzle 40, and the two hoses 30 and 50 are joined and mixed at a position immediately before reaching the spray nozzle 40. You may. The point is that the muddy water 60 can be discharged simultaneously with the earth and sand 20 including the water absorbing material 21. The muddy water 60 is a slurry of a swellable clay mineral that functions as a binder and a water retention material, and may be, for example, a hydrated montmorillonite or the like. Muddy water 60
The reason for mixing and stirring with water for use in 3 to sufficiently absorb water and swelling and then supplying the solution is to increase the viscosity and water content of the vegetation base material and to improve the adhesion to the slope 71. In order to improve the erosion resistance and to exhibit a high water supply capacity.

<C> Sediment In general, sand is used as soil for vegetation base material when air is conveyed. In the present invention, inexpensive mountain sand can be used as the soil 20 instead of expensive sand. Mountain sand contains silt and clay, and has a relatively high water content. Water is squeezed out during air transport and thickens, and is easily clogged in a hose, making it unsuitable for air transport. In addition, it has been considered difficult to use sea sand effectively due to its fine sand particles. However, the water absorbing material 21 described later
This type of earth and sand that was difficult to transport by using
0 air transportation becomes possible. Of course, this does not deny that the earth and sand 20 is washing sand.

<D> Water-absorbing material The water-absorbing material 21 is an additive for absorbing water and reducing the water content of the earth and sand 20. For example, a known inorganic water-absorbing material such as a clay powder in a dry state or a material having a high water-absorbing performance is used. Super absorbent resin can be used. As the water absorbing material 21, for example, verculite,
Zeolite, silica, perlite, various calcined ash, stone powder and the like can be used. Examples of the superabsorbent resin include a crosslinked product of polyacrylate, a hydrolyzate of a starch / acrylonitrile graft copolymer, a crosslinked product of (meth) acryloyloxyethyltrialkylammonium salt, and a crosslinked product of (meth) acrylamidopropyltrialkylammonium salt. object,
A crosslinked product of polyacrylamide-2-methylpyrropansulfonic acid salt and the like can be mentioned. The water absorbing material 21 not only functions to reduce the water content of the earth and sand 20 but also functions as a moisture and fertilizer holding member.

[0011]

Next, a method of spraying the vegetation base material will be described.

<A> Dewatering step of earth and sand The earth and sand 20 and the water absorbing material 21 are put into the stirring tank 10 in which the stirring blades 12 rotate, and the fertilizer, seeds and the like are added and mixed. The water-absorbing material 21 stirred and mixed together with the earth and sand 20 in the agitation tank 10 absorbs pore water existing between soil particles constituting the earth and sand 20 and moisture attached to the surface of the earth and sand 20, and apparently of the earth and sand 20. Reduces moisture content.

<B> Conveyance of soil and secondary agitation When most of the water content of the earth and sand 20 is absorbed by the water-absorbing material 21 by agitation in the agitation tank 10, air supply by the air pump 31 is started and air in the agitation tank 10 is started. Water-absorbing material 2 that has been stirred and mixed in
1 is transported via the transport hose 30. During transportation, the earth and sand 20 and the water absorbing material 21 in the transportation hose 30.
Are mixed again with stirring, so that the apparent water content of the earth and sand 20 further decreases. The earth and sand 20 that has changed to a substantially smooth state with a decrease in the water content is air-conveyed toward the spray nozzle 40.

<C> Discharge The muddy water 60 supplied through the liquid supply hose 50 by the operation of the liquid supply pump 52 merges with the earth and sand 20 including the water absorbing material 21 supplied through the transfer hose 30 in the spray nozzle 40, and A vegetation base material 70, which is a mixture of the water absorbing material 21, the fertilizer and the muddy water 60, is sprayed on the bare ground of the slope 71 with a predetermined thickness. The earth and sand 20 is conveyed while reducing the apparent water content in consideration of the conveyance property. However, at the time of spraying, the earth and sand 20 are muddy and adhere to the bare ground of the slope 71. In particular, since the water-absorbing material 21 and the muddy water 60 containing the clay mineral swollen by water absorption are mixed in the vegetation base material 70, the adhesion of the slope 71 to the bare ground becomes higher and the water retention is good. Become. The vegetation substrate 70 is muddy water 6
The antimicrobial activity of the aluminum component contained in the organic compound 0 suppresses the decomposition activity and propagation of microorganisms to prevent the corrosion of bark compost, and provides a base material equivalent to black soil in terms of soil quality. As for the types of plants that can be vegetated, only fast-growing species grow in a nutrient-rich environment, and plants close to nature that can withstand poor nutrients are under pressure and disappear. A new plant society cannot be created. In this respect, in the vegetation base material 70 containing clay and having high water retention and a poor nutritional environment, it is possible to create a diverse plant society in which various types of plants are mixed.

[0015]

[Embodiment 2] The embodiment in which only the earth and sand 20 is transported has been described above.
Alternatively, a mixture of processed fiber and vegetable fiber may be used. The processed fiber has a length of about 5 to 50 mm and 3
Acrylic fiber having a fineness of 0 to 50 d can be used, and bark compost, peat moss, or the like is desirably used as the plant fiber. In addition, as for the processed fiber and the vegetable fiber which can be mixed into the above-mentioned earth and sand 20, for example,
It is disclosed in Japanese Patent Publication No. 110722 and detailed description is omitted.

[0016]

As described above, the present invention has the following effects. <A> By mixing and mixing a water-absorbing material with difficult-to-transport soil including silt and clay, it is possible to convey soil and air by spraying, and it is possible to add muddy water containing swelling clay minerals and spray it in muddy state when spraying . This not only enables air transport of earth and sand containing silt and clay, but also has good adhesion to bare ground after spraying and high erosion resistance. <B> Because the vegetation base material is mainly made of inexpensive earth and sand including silt and clay, it is possible to construct the vegetation base material for the poor at low cost. <C> The water-absorbing material mixed into the soil can not only improve the transportability by absorbing the moisture of the soil to reduce the apparent water content, but also be effectively used as a holder for water and fertilizer. <D> There are many types of natural plants that are suitable for poor nutrition, so that plants can be selected from various types according to the purpose of planting. <E> By mixing and spraying a swelling clay mineral on a vegetation base material, the action of microorganisms can be suppressed, and the adverse effects (death of plants) due to microorganisms can be eliminated.

[Brief description of the drawings]

Fig. 1 Conceptual diagram of spraying method of vegetation base material

Claims (2)

(57) [Claims] 1. A spray method vegetation substrate a sediment containing dispersed fertilizer component construction vegetation base by blowing in layers, a mixture of water absorbent material to soil and soil conditioner containing silt or clay soil A method for spraying vegetation base material, wherein the apparent water content is reduced, the soil and sand are conveyed by air while the water absorbing material is mixed, and muddy and sprayed immediately before spraying. 2. A method for spraying a vegetation base material by spraying a layer of soil and soil in which a soil improvement material is dispersed to build a vegetation base, wherein the soil and sand containing silt or clay and an organic or inorganic soil improvement material are used.
A method for spraying soil and sand while mixing the water-absorbing material with the water-absorbing material, adding muddy water containing clay minerals immediately before spraying to form muddy soil, and spraying. .