JPH0521542Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vegetation board used for greening the ground of a natural slope or an artificial slope.

[Prior art and its problems]

Conventionally, vegetation boards used on slopes, etc. as described above include those made by laminating a fiber mesh or wire mesh on the surface of a fiberboard made by intertwining palm fibers and forming it into a board shape, and the above-mentioned vegetation board. There is a vegetation board in which seeds and fertilizers are held in the fiberboard of the vegetation board. To use this for greening a slope, etc., the slope is graded and cleaned, and a vegetation board is laid in advance with seeds and fertilizers of slope protection greening plants sprinkled on it. In addition, when using a vegetation board, the planting board is laid without spreading seeds and fertilizers.
When installing it, it is important to follow the unevenness of the ground and make sure it adheres closely. After laying, the vegetation boards are fixed to the ground with screws, anchors, or adhesives to prevent them from moving due to wind, rain, dirt, etc. When the vegetation board does not contain seeds or fertilizer, a mixture of seeds, fertilizer, soil base material, soil conditioner, coloring agent, water, etc. is sprayed on the slope before the vegetation board is laid. Therefore, it is difficult to work with, and since the specific gravity of seeds is small, the scattering distance is smaller than that of other seeds, which tends to cause uneven scattering, and there is also a disadvantage that uneven scattering can easily occur due to the fatigue of the worker. For this reason, if seeds and chemical fertilizers are held in advance during the manufacturing process of the vegetation board, they can be easily and evenly held. The method of holding the fiberboard is to glue it to the back side of the fiberboard, or to knead it with the fibers during the manufacturing process of the fiberboard and glue it inside the fiberboard, but fiberboard can be a hindrance to the growth of plants. It has a coarse and thin structure that prevents soil erosion by settling on the soil surface or biting into it, so seeds, fertilizers, etc. held in it are absorbed by the vegetation board. It is easy to fall off during handling, and the falling off does not occur evenly, and it is difficult to obtain the expected uniform germination when used in service because the vegetation boards and parts that are handled frequently fall off easily. Ta.

In addition, the net layered on the surface of the vegetation board is used to provide strength to the vegetation board for handling and stretching the vegetation board, and to fix the fiberboard so that it does not move when the vegetation board is laid on the ground. The fiberboard is placed in close contact with the ground or dug into the ground to prevent soil erosion, and also acts as a holding material to hold the fiberboard into the ground to prevent seeds, fertilizers, etc. from being washed away. There is. In order to press down and fix the net, a mesh or a driven anchor is used, or an adhesive is used to fix the net to a driven anchor or an exposed rock surface. When the net is made of fibers, it is difficult to ensure the adhesion of the vegetation board in the depressions when the ground is extremely uneven, so it is necessary to increase the number of hooks and anchors. Although it is often used, those with a quadrilateral mesh have great rigidity in the direction of the sides of the mesh, making it difficult to stretch along the unevenness of the ground, and wire mesh in particular cannot follow concave surfaces and often floats up. .

[Means to solve the problem]

This invention was developed to improve the above-mentioned drawbacks of conventional vegetation boards, and consists of coarsely intertwining coconut fibers and gluing them together with a water-soluble adhesive to form a thin board. On the top surface of the palm pine layer, a fine-diameter hexagonal wire mesh is pasted with adhesive and layered, and on the bottom surface of the palm pine layer, synthetic fibers and natural fibers are kneaded in approximately equal amounts. Then, a thin hydrophilic cotton layer is glued and layered, and then a water-soluble thin paper is glued and layered with the seeds and fertilizer of greening plants sandwiched on the bottom surface, and then formed into a long piece. This is a vegetation board for greening characterized by being rolled up with the wire mesh side facing inside.

〔Example〕

Greening vegetation board of this invention (hereinafter referred to as this vegetation board)
One embodiment will be described based on the drawings.

Palm pine layer 1 made of approximately 200 to 300 g/m ² of coconut fibers coarsely intertwined and lightly adhered with water-soluble glue such as starch glue to form a plate shape of approximately 1 to 3 mm thick. Wire diameter approx. 0.3 with vinyl coating on top
A tortoise-like wire mesh 2 of about 20 to 40 mm, which is braided with ~0.5 mm soft iron wire, is glued with a stretchable rubber adhesive. The bottom surface of the palm pine layer 1 contains approximately
A cotton layer 3 made of coarsely pounded cotton material of 10 to 30 g/m ² and formed to have an apparent thickness of about 2 to 3 mm is adhered.
The cotton material is a mixture of approximately 50-50 natural fibers such as degreased cotton and synthetic fibers such as acetate. Surfactants may also be added to further enhance hydrophilicity. At the bottom layer of this vegetation board, water-soluble thin paper 4 is adhered to the lower surface of the cotton layer 3. The thin paper 4 is made of plain paper or crepe paper. Seeds 5 of slope protection plants and chemical fertilizers 6 are spread and sandwiched between the cotton layer 3 and the thin paper 4. Each layer is adhered to each other, but the strength of the adhesion must be as light as possible to the extent that each layer does not peel off during the production, distribution, and service processes of this vegetation board, causing problems with work. is desirable. This vegetation board constructed in this way has a width of approximately 1 to 2 m and a length of approximately 1 to 2 m for ease of handling.
It is formed into a long sheet of 10 to 60 meters. The long sheet-like vegetation board is wound into a scroll shape so that the wire mesh side, which will be the top surface when it is used and expanded, is on the inside.

When using this vegetation board for greening a slope, first level the slope. Leveling the ground does not have to be flat; it is enough to remove floating stones and extreme unevenness. Next, clean the slope to remove anything that will hinder its growth when the seeds land and take root. Next, fix the rolled end of the scroll-shaped vegetation board to the ground at the top of the slope, unroll and unroll the vegetation board downwards on the slope, press it down so that it follows the unevenness of the ground, and press it down as required. Drive eyeliners or driving anchors into the ground from above the vegetation board at the required points, connecting them to the wire mesh 2,
Fix it to the ground. The density of the eyeliners or driven anchors is determined so that the stretched vegetation board is as close to the ground as possible, and that the vegetation board does not float or vibrate due to the wind and inhibit the growth of plants. This is determined by taking into consideration the ability to withstand sliding loads. The palm pine layer of this vegetation board has the role of preventing ground erosion and preventing plants from falling until slope protection greening plants are generated. That is, when the ground becomes muddy due to rain, the palm pine layer 1 buries itself in the ground to some extent and acts as a resistance to rainwater flowing on the ground, reducing the flow velocity and making complicated detours in the flow path, thereby preventing ground erosion. At the same time, it prevents the seeds from being washed away, and since it covers the ground with appropriate water content, it prevents the ground from drying out. Also, since the palm pine layer 1 is a vegetable fiber, it will turn into humus and be used as fertilizer when slope protection plants grow thick over time and its role in preventing land erosion becomes unnecessary. The intertwining of the palm pine layer 1 is coarse, allowing sufficient passage for plant germination, and when the plants grow, the adhesive that binds the intertwined palm fibers is washed away by rain and the intertwining occurs. Since it is loose, it does not hinder the enlargement and growth of plants.

The wire mesh 2 provided on the palm pine layer 1 serves as reinforcement for the palm pine and prevents the fragile palm pine from deforming during handling of this vegetation board. Since it is large and shaped like a tortoiseshell, it can be expanded and contracted in any direction, allowing it to be laid so that it blends well with the ground, even where the ground is uneven. In addition, the wire mesh 2 has appropriate rigidity, and by pressing and fixing it at appropriate intervals with eyeliners or driven anchors, the palm pine layer, earth, sand, rocks, etc. under the wire mesh 2 can be held down to the ground, causing them to float or collapse. You can prevent this from happening. In addition, the wire mesh 2, driving anchors, etc. resist the falling of snow when the vegetation has not grown sufficiently, and the underlying palm pine layer 1 or the plants growing there do not fall. In addition, since the wire mesh 2 is made of a thin vinyl-coated wire, the wire mesh remains healthy until some vegetation grows, but over time, the vinyl coating deteriorates and the wires corrode as the slope protection plants grow and flourish. It no longer has any resistance, and it does not impede the growth of woody plants that fly into this area.

The cotton layer 3 below the palm pine layer 1 serves as a matrix for holding seeds, fertilizers, etc. in this vegetation board. Since the fibers of the cotton layer 3 bonded to the palm pine layer 1 are finely entangled, the adhesion force is much stronger than when seeds 5, fertilizer 6, etc. are bonded directly to the palm pine layer 1. In addition, the cotton layer 3 is hydrophilic, flexible, and has a fine mesh, so when this vegetation board is laid on the ground, it wraps the seeds 5 and fertilizer 6 from above and adheres to or buries into the ground by rainwater. Directly prevent the loss of the population. That is, the seeds 5 and fertilizer 6 are reliably protected by both the cotton layer 3 and the coconut layer 1. Further, the natural fibers of the cotton in the cotton layer 3 become fertilizer as humus when the plants grow and there is less risk of soil erosion or washing away of the plants. The cotton synthetic fibers in the cotton layer 3 remain even after the natural fibers turn into humus, and after the seeds attached to the main vegetation board have grown, they become entangled with the roots of the seeds that fly in, preventing them from being washed away. The cotton fibers in the cotton layer 3 are fine, the cotton layer is thin, the fibers are weakly intertwined, and the mesh is relatively coarse, so that the germination or rooting of plants will penetrate through them and will not inhibit their growth. The cotton layer 3 also serves to prevent the ground from drying out similarly to the above-mentioned palm pine layer 1.

Seeds 5, fertilizers 6, etc. are mixed and spread on the underside of the cotton layer 3 during the production process of this vegetation board, so they can be applied evenly and the amount of spraying can be well controlled, so when spraying seeds on site. This will greatly improve the unevenness of mixing and spreading of seeds, fertilizers, etc. and variations in the amount of spraying caused by worker fatigue.

Since thin paper 4 is glued and layered on the bottom surface of the cotton layer 3 with seeds 5, fertilizers 6, etc. sandwiched between them, the seeds, fertilizers, etc. are not scattered and scattered when the vegetation board is handled during distribution or use. Since there is no more waste, it is possible to carry out seeding and fertilization as planned. The strength of thin paper itself is extremely low, so it does not provide any resistance when laying the vegetation board on uneven ground and pressing down on it to make it follow the uneven ground. can be made in accordance with At this time, seeds 5, fertilizer 6, etc. may fall from the tear in the paper, but the landing area is the area where greening is to be done, so there is no need to avoid the tearing of the thin paper and the falling of seeds and fertilizer at this time. . Thin paper 4 is water-soluble, and once exposed to rain after this vegetation board is laid down, it will dissolve, the paper structure will be dismantled, and the coating power will disappear, preventing seeds from rooting and
It will not impede germination and growth. The dissolved residue of thin paper 4 decays and becomes fertilizer. If the thin paper 4 is particularly made of elastic crepe paper, the force applied to the paper that is inadvertently generated when the vegetation board is handled is alleviated, which is effective in preventing damage.

In addition, in addition to the seeds 5 and fertilizer 6, it is also possible to hold or sandwich soil conditioners, PH reducing agents, curing agents, etc. within the cotton layer 3 and between the cotton layer 3 and the thin paper 4. By using this vegetation board, which comes with the following materials, it is possible to spread soil conditioners, etc. evenly and appropriately at the same time.

In addition, the top layer wire mesh 2 is coarse, and the palm pine layer 1 below it is unlikely to be an obstacle to seed germination, rooting, or growth, and the cotton layer 3 and thin paper 4 are no hindrance to plant growth. The palm pine layer 1 and the cotton layer 3 have the role of protecting seeds 5, fertilizer 6, and young vegetation, so the growth and density of vegetation may be undesirable due to the influence of weather, soil, etc. In some cases, it is possible to obtain additional vegetation by scattering seeds and fertilizers on top of the original vegetation board.

Also, if the base soil is particularly poor, it is best to lay additional soil and then lay the main vegetation board on top of it.

[Effect of idea]

As described above, the vegetation board of the present invention has excellent characteristics such as being able to perform slope greening work extremely easily and efficiently while maintaining stable quality.

[Brief explanation of the drawing]

The drawing is a side sectional view of a vegetation board showing an embodiment of the present invention. 1... Palm pine layer, 2... Wire mesh, 3... Cotton layer, 4... Thin paper, 5... Seed, 6... Fertilizer.

Claims (1)

[Scope of utility model registration request] A thin wire hexagonal wire mesh 2 is attached with adhesive to the top surface of the palm pine layer 1, which is formed into a thin plate by coarsely intertwining coconut fibers and gluing them together with a water-soluble adhesive. A thin hydrophilic cotton layer 3, in which synthetic fibers and natural fibers are kneaded in approximately equal amounts, is bonded and layered on the bottom surface of the palm pine layer 1, and greening is further applied to the bottom surface of the cotton layer 3. Seeds 5 of plants for cultivation and fertilizer 6 are sandwiched, water-soluble thin paper 4 is glued and layered, formed into a long piece, and rolled up with the wire mesh side inside. Vegetation board for greening.