JP2000054392A - Filling material, cage mat, and greening method using cage mat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a vegetation base material from being washed away to favorably plant trees on a stable slope face by constituting a filling material used to fill gaps among a plurality of stones fed in a netted cage, of vegetable fibers formed in lumps. SOLUTION: A filling material 4 is made of corrosive vegetable fiber, a coconut fiber-made sheet material for instance. The sheet material is wound up and cut in a specified length, and a vegetation base material is attached to one face of the sheet material. Then, netted cages 1 are stacked in tiers along the cut face of a slope face 7a. A plurality of stones 3 and the filling materials 4 are filled in the cages 1. Further, the same works are repeated to stacked cages 1 in tiers and form a cage mat 10. Seeds, fertilizer, and water- retaining materials are held in the coconut fibers by winding the sheet material, and the sheet materials are held by stones 3. Hence, the vegetation base material is prevented from being washed away. Condensation water on the stones 3, rainwater, etc., are effectively absorbed and the vegetation layer is prevented from drying to enable vegetation to fix and grow favorably.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended to stably maintain slopes such as hillsides, embankments, and shores of rivers, slopes formed by the construction of roads, and riversides that are not normally immersed in water. And a greening method using a car mat.

[0002]

2. Description of the Related Art Conventionally, in order to stabilize the above-mentioned slopes and riverbeds and at the same time to achieve greening, a square net-shaped cage body having an open upper portion is stepwise stacked and installed on the slopes. The baskets made of juxtaposition are placed side by side so as to be buried in riverbeds, etc., and a plurality of stones of a predetermined size (for example, cobblestones, hereinafter referred to as cobblestones) and potentially local plants are placed in the net cages. The so-called cage mat method of forming a vegetation layer between each cobblestone by filling a locally generated soil including buried seeds and root stocks, or an artificial vegetation base material mixed with plant seeds and fertilizers is adopted.

[0003]

In the conventional car mat construction method, the cobblestone layer exists in the net cage, so that the collapse of the slope and the erosion of the surface layer of the slope due to spring water are effectively prevented. In addition, the erosion of the surface layer due to running water such as floods is effectively prevented, and stabilization of slopes and riverbanks is suitably achieved. Because the vegetation layer is soft between each cobblestone, the locally generated soil and vegetation base material are washed away by rainwater, etc., and along with this, many voids are formed between each cobblestone and the drying of the remaining vegetation layer is reduced. This makes it difficult for plants to settle and grow, and there is a problem that greening is not achieved as expected.

The present invention has been made in consideration of the above points, and an object of the present invention is to prevent the vegetation base material from flowing out while maintaining appropriate water permeability, and to improve the slope and It is an object of the present invention to provide a filling material, a car mat, and a tree planting method using a car mat in which greening such as a stabilization slope is suitably achieved in addition to stabilization of a shore.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, a filling material to be used by filling a plurality of filling stones in a gap between a plurality of filling stones to be put into a net cage is used. It is composed of a vegetable fiber molded into a shape.

[0006] Therefore, the lump-shaped plant fiber is firmly sandwiched by the clogging stone and does not run off, and the lump-shaped plant fiber well captures the flying seeds and drifting seeds of the surrounding vegetation, and provides effective growth. It becomes a base and can easily introduce surrounding vegetation.

The filling material according to the second aspect is the first aspect.
The filling material described above is formed by winding a sheet material made of vegetable fiber.

[0008] Therefore, the seeds, fertilizers and the like can be easily carried on the vegetable fibers by involving them.

[0009] Further, the filling material according to claim 3 includes seeds,
One or more selected from root stocks, fertilizers, and water retention materials are carried on vegetable fibers.

[0010] Therefore, by supporting the fertilizer and / or the water retention material on the vegetable fiber, the germination and growth of the captured flying or drifting seeds can be promoted, and the introduction of the surrounding vegetation can be more reliably performed. In addition, when early greening is required, greening is possible without waiting for invasion of surrounding vegetation by supporting seeds such as grass and wild grass. Further, by supporting a root plant of an aquatic plant at the water's edge, the greening can be maintained even when the car mat is submerged.

Further, the car mat according to the fourth aspect is filled in a cage made of a net, a plurality of stuffing stones which are put into the car body through an upper opening of the car body, and a gap between the stuffing stones. And a filling material according to any one of claims 1 to 3.

[0012] Therefore, the car mat is stabilized by the heavy stuffing stone, the slope and the shore are effectively protected, and the greening is easily achieved by the vegetation based on the lumps of plant fiber as a growth base. You. Moreover, the vegetation using the filling material as a growth base can effectively utilize the moisture condensed on the filling stone and grow well.

According to a fifth aspect of the present invention, there is provided a tree planting method, wherein a mesh basket body having an opening at an upper part is installed in an area to be greened, a plurality of stuffing stones are put into the cage, and a gap between the respective stuffing stones is provided. To
The filling material according to any one of claims 1 to 3 is filled.

Therefore, since the car mat is constructed while the greening target area is being leveled, the car mat can be installed according to the terrain at the site.

According to a sixth aspect of the present invention, in the tree planting method, a plurality of stuffing stones are put into the cage through an upper opening of the net cage, and a gap between the stuffing stones is inserted into the cage. Any of the filling materials described above, and the cage filled with the filling stone and the filling material is installed in a greening target area.

Therefore, since the car mat is prepared in advance, it is only necessary to install the car mat in a leveled greening target area on site, and the work time is short and the workability is good.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment will be described with reference to FIGS. In these figures, reference numeral 1 denotes a mesh basket body, for example, a wire made of a zinc iron wire is welded in a lattice shape, bent into a square shape so as to form an opening 2 at an upper portion, and a reinforcing wire or the like is appropriately welded. For example, the height dimension is 500 mm, the depth dimension is 1000 mm,
The width of the net is generally about 2000 mm, but in addition, as the embodiment of the net-made cage 1, a configuration in which a wire netting braided wire mesh plate is bent into a square shape can also be used. The size of the mesh of the grid is 100 to 150 m.
m.

Reference numeral 3 denotes a plurality of filling stones which are put into the basket 1 through the opening 2 of the basket 1, and reference numeral 4 denotes a plurality of column-shaped filling materials filled between the filling stones 3. And, for example, a diameter φ1
A sheet material 5 of 10 mm to 160 mm and made of corrosive vegetable fiber, for example, coconut fiber, for example, as shown in FIG. Cut to size. A vegetation base material 6 is attached to one side, the center, and the other side of one surface of the sheet material 5. The vegetation base material 6 includes plant seeds, specifically, an artificial vegetation base material in which plant seeds are mixed with a soil improving material, and organic compost,
An artificial vegetation substrate in which at least one of chemical fertilizer, vegetable fiber, and water retention material is mixed is selected. Numeral 10 denotes a basket mat composed of a net cage 1, each filling stone 3, each filling material 4, and a vegetation base material 6.

Next, a greening procedure using the net cage 1 will be described. First, as shown in FIG. 1, the position shift dimension D of the upper and lower mesh baskets 1, 1 stacked in a stepwise manner.
In consideration of the height of the net cage 1 and the height of the net basket 1, the area to be greened on the slope 7a of the embankment 7 is cut in a step-like manner. In consideration of the corresponding volume, the greening target area (in the example shown, two rows of the net cage 1) is cut, and the cut surface is made of, for example, palm fiber having a thickness of about 10 to 20 mm. A suction-prevention mat 9 having an aqueous property is laid.

Next, the net-shaped baskets 1 are buried in the cut portion of the Kawahara 8 in two rows and juxtaposed by a large heavy machine such as a backhoe. At this time, a plurality of stuffing stones 3 are put into the lower layer in the mesh basket 1 and a plurality of columnar filling materials 4 are filled between the respective stuffing stones 3. 1 is repeated up to the upper layer, and the basket 1 made of the net is filled with a plurality of stuffing stones 3 and the filling material 4 to form the car mat 10. Then, on the car mat 10 on the side of the side face 7a which is juxtaposed, the net-made basket 1 is stacked stepwise along the cut surface portion of the side face 7a, and the same construction work as described above is performed. Further, the above-mentioned construction work is repeatedly performed on the net-shaped cage body 1 stacked in a step-like manner, and the cage mats 10 are configured and sequentially installed. As described above, since the car mat 10 is constructed while leveling the greening target area, the car mat 10 can be installed according to the situation such as the terrain at the site.

The net cage 1 depends on a large heavy machine such as a backhoe, but may be installed manually.

Since the seeds, fertilizer, and water retention material are supported by the coconut fiber by the winding of the sheet material 5, and the sheet material 5 is sandwiched between the packing stones 3, as shown in FIG. As a result, it is possible to prevent the layer (vegetation layer) of the vegetation base material 6 from flowing out, and to effectively absorb moisture and rainfall condensing on the stuffed stone 3, as shown in FIG. 2 (B). Germinates and grows well. For this reason, the drying of the vegetation layer can be further prevented, the plants can be firmly established and grown, and the Kawahara 8 and the slope 7a can be suitably planted and greened. In addition, when early greening is required, by supporting seeds such as grass and wild grass, early greening can be realized without waiting for invasion of surrounding vegetation. Furthermore, by supporting a root plant of an aquatic plant at the water's edge, it is possible to maintain greening even if the car mat is flooded.

On the other hand, since the mat 9 laid on the slope 7a and the sheet material for preventing the vegetation base material 6 from flowing away are made of corrosive coconut fiber, for example, they are weathered due to aging. In addition, it is decomposed and corroded and homogenized with the vegetation substrate 6.

In the case of the above-described embodiment, the material constituting the net cage 1 does not matter, but a plastic net or a wire net is preferable in terms of strength and cost.

Although the net cage 1 is not provided with a net lid, it is a matter of course that a net lid may be provided.

In addition, a plurality of net cages are arranged side by side, and then the filling stone and the filling material are filled. However, the cage mat filled with the filling stone and the filling material is sequentially stepped. You may make it pile up and install it. In this case, since the car mat is created in advance, it is only necessary to install the car mat in the greening target area on site, and the working time can be reduced.

Although the column-shaped filling material is used, the filling material may be spherical or massive, and corrosive coconut fiber sheet material is used for the filling material. It is easy to inhabit and has a water purification effect. Furthermore, since the sheet material of the filling material uses natural fiber such as coconut fiber, it is environmentally friendly. In addition, since the filling material is deformed in accordance with the gap between the filling stones, the filling material can be easily inserted into the gap, without changing the usage amount of the filling stone,
It can be easily constructed. In addition, since the filling material is firmly held by the filling stone, it does not flow away.

In addition, when the vegetation base material is mounted, it is preferable to place a fertilizer in the center of the filling material and a plant seed in the periphery of the filling material in order to facilitate germination.

Further, the car mat of the present invention can be applied not only to the slope but also to the shore and the like.

[0030]

As described above, according to the first aspect of the present invention, the filling material used for filling the gaps between the filling stones to be put into a plurality of net cages is made from the plant fiber formed into a mass. Because it was composed, the lump vegetable fiber was firmly sandwiched by the cuffs and did not run off, and the lump vegetable fiber was
It catches flying seeds and drifting seeds of the surrounding vegetation well, becomes an effective growth base, and can easily introduce the surrounding vegetation.

The filling material according to the second aspect is the first aspect.
Since the filling material described is formed by winding a sheet material made of vegetable fiber, the seed material, fertilizer, and the like can be easily carried on the vegetable fiber by involving it.

Further, the filling material according to claim 3 is characterized in that:
Since one or more selected from root stocks, fertilizers, and water retention materials are carried on the plant fiber, the germination and growth of the captured flying or drifting seeds can be promoted, and the introduction of surrounding vegetation can be further ensured. In addition, when early greening is required, by supporting seeds such as grass and wild grass, early greening can be realized without waiting for invasion of surrounding vegetation. Furthermore, by supporting a root plant of an aquatic plant at the water's edge, it is possible to maintain greening even if the car mat is flooded.

Further, in the basket mat according to the fourth aspect, a plurality of stuffing stones are put into a net cage body, and the filling material according to any one of the first to third aspects is provided in a gap between the stuffing stones. Since the filling is carried out, the car mat is stabilized by the heavy stuffing stone, the slope and the shore are effectively protected, and the greening is easily achieved by the vegetation based on the growth base of the massive plant fiber. Moreover, the vegetation using the filling material as a growth base can effectively utilize the moisture condensed on the filling stone and grow well.

Further, in the greening method according to the fifth aspect, a net cage body having an open upper portion is installed in a greening target area, a plurality of stuffing stones are put into the cage body, and a gap between each of the stuffing stones is inserted into the cage. Since the filling material is filled with the filling material according to any one of claims 1 to 3, a car mat can be constructed while leveling the greening target area, and the car mat according to the situation such as the topography of the site. Can be installed.

In the greening method according to the sixth aspect, a plurality of stuffing stones are put into the cage from the upper opening of the net cage,
Since the gap between each of the filling stones is filled with the filling material according to any one of claims 1 to 3, and the cage filled with the filling material and the filling material is set in the greening target area, A car mat can be created, and in the field, it only needs to be installed in a leveled greening target area, and the work time can be reduced,
Workability can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a greening procedure of a slope.

2 (A) is an enlarged view of a part of FIG. 1, and FIG. 2 (B) is (A)
FIG. 4 is an enlarged view of a part when the time changes.

FIG. 3 is a perspective view showing a procedure for producing a filling material.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Net basket body, 2 ... Opening, 3 ... Filling stone, 4 ... Filling material, 5
... sheet material, 6 ... vegetation base material.

Claims (6)

[Claims] 1. A filling material made of plant fibers formed in a lump, which is used by filling in gaps between filling stones to be put into a plurality of net baskets. 2. The filling material according to claim 1, wherein a sheet material made of vegetable fiber is wound. 3. The filling material according to claim 1, wherein at least one selected from a seed, a root stock, a fertilizer, and a water retention material is supported on vegetable fibers. 4. A basket made of net, a plurality of stuffed stones charged into the cage through an upper opening of the cage, and a gap between the stuffed stones is filled. A car mat characterized by comprising a filling material as described in (1). 5. A cage made of a net having an opening at an upper part in an area to be greened, a plurality of stuffing stones are put into the cage, and a gap between the stuffing stones is inserted into a gap between the respective stuffing stones. A tree planting method characterized by filling a filling material between crabs. 6. The filling material according to any one of claims 1 to 3, wherein a plurality of stuffing stones are put into the cage from an upper opening of the basket made of mesh, and a gap between each of the stuffing stones is filled with the filling material. A greening method, wherein the cage body filled and filled with the filling stone and the filling material is installed in a greening target area.