JP4169856B2 - Tree planting method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention, embankments and river original of the river, the banks of the vegetation seawall, other, it relates to green Chemical method of hillside slopes.
[0002]
[Prior art]
For example, in the case of vegetation revetment on river dikes, greening protection on slopes, etc., conventionally, as shown in FIG. 7, plant seeds a are sown on the vegetation surface S, while vegetation for covering protection such as palm mats, vegetation sheets, waragomo, etc. The mat 11 is placed on the vegetation surface S with its sides overlapped with each other, or a sheet with plant seeds is fixed to a palm mat or the like, and the sides thereof are placed on the vegetation surface S with each other overlapped. In addition, the rough rope 12 is arranged vertically and horizontally on the upper surface of the vegetation mat 11, while the vegetation mat 11 is pressed against the vegetation surface S by the retaining skewer 13 to prevent the vegetation surface S from being eroded by running water or submergence. It takes a greening form waiting for germination and growth of seed a.
[0003]
[Problems to be solved by the invention]
However, in the above-mentioned greening method, since the sides of the vegetation mat 11 are overlapped with each other, the installation thickness of the vegetation mat 11 is locally increased at the overlapping portion, and germination and growth of the plant seed a are inhibited. There was an easy problem.
[0004]
Moreover, when the edge part side surface of the vegetation mat 11 is piled up so that it may run against running water, strong water resistance is applied to the overlapping edge surface, and the overlapping edge part of the vegetation mat 11 is easily raised. And once the side is rolled up, the resistance concentrates here, and the vegetation mat 11 is easily peeled off from the vegetation surface S, or the vegetation mat 11 is overlapped along the water flow direction. Even when the vegetation mats are combined, the swirl of water strongly swirls at the end face of the mat, so that the overlapping side portion of the vegetation mat 11 tends to rise up, and there is a problem in terms of preventing erosion of the vegetation surface S.
[0005]
Furthermore, since the vegetation mat 11 is simply pressed vertically and horizontally with the rough rope 12, there is a problem in that the fibers b are easily broken and dispersed, and this tends to run away.
[0006]
The present invention, which was made in view of Such circumstances, an object thereof is to provide an green modified method described above inconveniences Ru is solved at a stroke.
[0007]
[Means for Solving the Problems]
The greening method according to the present invention, which has achieved the above object, fixes the net on both the front and back surfaces of the mat-like fiber, and at least one side of the net is in the same direction from one side of the mat-like fiber. The vegetation mats that are overhanging are installed on the river embankment and the vegetation surface of the riverbank with their end faces butting together, and when the vegetation mats are installed against each other, the overhanging net part of one vegetation mat is in the direction of running water The side of the other vegetation mat that is adjacent to the other vegetation mat is sandwiched toward the downstream side, and a retaining skewer is placed on the side of the other vegetation mat that is sandwiched by the overhanging net portion (claim 1).
[0008]
Further, greening method according to the invention from another aspect, the net is fixed to both surfaces of the mat-like fiber, and at least one side of the net, out tension from one side portion of the mat-shaped fiber in the same direction vegetation mats made by, against its end face to each other placed on vegetation surface of the slope, and, upon butt installation of the vegetation mat toward the overhanging net portion of one of the vegetation mat slope below the slopes The present invention is characterized in that a side portion of the other adjacent vegetation mat is sandwiched and a retaining skewer is placed on a side portion of the other vegetation mat sandwiched by the projecting net portion.
[0009]
According to the above greening method, the vegetation mats are placed on the vegetation surface without matching the vegetation mats, so that germination and growth of the plant seeds are not hindered, and uniform vegetation over the entire vegetation surface is possible. .
[0010]
Also, because the end face of the vegetation mat is abutted, when water flows out, the water flows smoothly over the top of the abutting end face. Peeling from the vegetation surface is effectively prevented.
[0011]
Furthermore, since the nets are fixed to the front and back of the fiber mat, the strength of the vegetation mat itself can be improved, and the movement of the fibers between the nets can be prevented. The back net prevents the fibers from sinking into the vegetation surface.
[0012]
Therefore, according to the present invention, on the erosion of the vegetation surface is reliably prevented is the greening construction method which can uniformly planting vegetation surface is provided.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a vegetation mat 1 for greening. This vegetation mat 1 has nets 3 and 4 fixed to both front and back surfaces of a mat-like fiber 2, and one side of the nets 3 and 4 is attached to a mat-like fiber. 2 is protruded in the same direction from one side portion, and further, for example, one of the nets 4 holds a carrier seed 5 carrying sheet 5.
[0014]
Specifically, the mat-like fiber 2 in which the fiber b is matted in a porous state (porous state) is placed on the upper part of the long net 4 that holds the seed carrying sheet 5 on the lower surface side. At this time, the width dimension of the mat-like fiber 2 and the long net 4 is set so that one side of the long net 4 extends in the width direction, for example, about 5 to 10 cm from the end A of the mat-like fiber 2. Set.
[0015]
Then, the other one of the long net 3 having the same width as the net 4, covering the mat fibers 2 to align the net 4 in the width direction, and to secure the tripartite 2-4 together As described above, the vegetation mat 1 having a width of about 1 m and a length of about 5 m, for example, is manufactured by sewing the three members 2 to 4 with a thread 6 made of resin or the like and cutting the stitches.
[0016]
Examples of the fiber b include natural fibers such as wood wool, hemp, palm fiber and straw, chemical fibers such as polyester and polypropylene, and biodegradable fibers such as polylactic acid and aliphatic polyester. It is selected and matted into a felt shape or the like with an adhesive or a needle punch, or matted in an unprocessed state and placed on the net 4 , but when matted, Without taking the above procedure, the mat-like fiber 2 is sandwiched between the nets 3 and 4 and fixed at once with a needle punch or the like, or is sewn with a coarse seam with a pitch of 3 to 10 cm. In view of germination and growth of plant seeds, it is preferable that the mat-like fiber 2 has a thickness of about 5 to 10 mm.
[0017]
Further, as the nets 3 and 4, for example, a synthetic resin such as polyethylene or a metal such as a turtle shell metal mesh, or a corrosive fiber is selected. There is no necessity, and when the nets 3 and 4 are of different types, the strength may be different, but it is preferable to have the same level of strength.
[0018]
On the other hand, the seed-carrying sheet 5 is provided with a fertilizer c as needed together with the plant seed a on one side of the corrosive sheet 7 such as water-soluble paper or cotton wool that enables germination and growth of the plant seed. It is formed by adhering and holding with a water-soluble paste d such as polyvinyl alcohol, and in this embodiment, the net overhanging dimension is kept from the edge of the back side net 4 and the seed carrying surface is directed outward, Although it is held on the back side net 4 in advance, it may be retrofitted to the back side net 4 and the seed carrying surface may be held toward the net 4 side.
[0019]
Although not shown in the figure, the seed carrying sheet 5 may be formed by sandwiching fertilizers or soil improvers together with plant seeds between the corrosive sheets, and this may be held on the net 4. Holding the carrier sheet 5 is not an essential requirement.
[0020]
When the vegetation surface S to be planted is a river bank or a river field when the vegetation mat 1 having the above-described structure is planted, the vegetation mat 1 is arranged on one side of the mat-like fiber 2 as shown in FIG. from the net portion 3a which has overhanging in the same direction, the 4a, toward the downstream side of the flow water direction R, and the seed carrying sheet 5 placed toward the vegetation surface S, vegetation surface S of the greening target hillside In the case of the slope, as shown in FIG. 3, the projecting net portions 3a and 4a are installed with the slope facing downward.
[0021]
At this time, as shown in FIG. 4, the end portions A of the vegetation mats 1 are installed so as to face each other. At the time of this butt installation, the other nets adjacent to each other by the projecting net portions 3 a, 4 a of one vegetation mat 1. For example, a pitch of 30 to 100 cm spans the side of the vegetation mat 1 and spans the side of the other vegetation mat 1 sandwiched by the net portions 3a and 4a and the side of the vegetation mat 1 that abuts against the side. Then, a U-shaped retaining skewer 8 is driven.
[0022]
According to the above-mentioned greening method, the vegetation mat 1 is not overlapped and the end faces A and A face each other and are placed on the vegetation surface S, so that germination and growth of the plant seed a are not hindered. A uniform greening vegetation over the entire vegetation surface S can be expected.
[0023]
Further, since the end surfaces A and A of the vegetation mat 1 are abutted with each other, no stepped portion is formed between the adjacent vegetation mats 1 and 1, so that when water is discharged, the water is the upper part of the abutting end surfaces A and A. the now flows smoothly, moreover, Zhang Ri out net portion 3a, 4a by a directing slope below the downstream side or slope of the flowing water direction R, the water flow becomes even more smooth, thus, vegetation running water mat As a result, the peeling of the vegetation mat 1 from the vegetation surface S accompanying the rolling up is effectively prevented.
[0024]
Furthermore, as the vegetation mat 1, the strength is increased by the nets 3 and 4 fixed to the front and back of the mat-like fibers 2, and the movement of the fibers b between the nets 3 and 4 is also reliably prevented. Since the net 3 on the front side prevents the dispersion and runoff of the fibers b, and the net 4 on the back side prevents the sinking of the fibers b, the erosion of the vegetation surface S due to running water or submergence is caused by this vegetation. The mat 1 is surely prevented, and thereafter the greening of the vegetation surface S is suitably achieved by waiting for the germination and growth of the plant seed a.
[0025]
In addition, when the seed carrying sheet 5 is not held on the vegetation mat 1, it is preferable that the seed carrying sheet 5 having various configurations described above is installed in advance on the vegetation surface S. However, greening due to germination and growth of local seeds can be expected. Therefore, it may take a greening form in which the seed-carrying sheet 5 is not installed at all. In addition, it is also preferable to cover the vegetation surface S with the vegetation mat 1 after the plant seeds, fertilizers, and the like are sprayed on the vegetation surface S in advance.
[0026]
In the embodiment, the retaining skewer 8 has a U-shape, but the simple retaining skewer shown in FIG. 7 is sufficient, and a rough rope is provided above the vegetation mat 1 as necessary. May be arranged vertically and horizontally.
[0027]
Furthermore, as the vegetation mat 1, net portions 3a and 4a are projected on one side in the width direction of the vegetation mat 1, but the net portions are projected on both sides and four sides in the width direction of the vegetation mat 1. In this case, as shown in FIG. 5, the net portions 3a and 4a of one vegetation mat 1 that abuts the end A are folded back, and the net portions 3a and 4a of the other vegetation mat 1 are covered with this. However, as shown in FIG. 6, a vegetation mat 1 </ b> A having no net overhang may be prepared separately, and the vegetation mats 1, 1 </ b> A may be placed in contact with each other.
[0028]
In addition to this, although not shown in the drawings, a vegetation mat with net portions projecting on both sides in the width direction and a vegetation mat with net portions projecting on both sides in the longitudinal direction are prepared. If the vegetation mats are installed next to each other, the four sides of the vegetation mat can be extended and connected to each other by a net portion.
[0029]
Alternatively, the four sides of the vegetation mat can be connected by the projecting net part by installing a vegetation mat with projecting net parts on the four sides and a vegetation mat without projecting the net part next to each other. In this case, if the vegetation mat is a regular square, it is preferable that the orientation of the vegetation mat is not limited.
[0030]
【The invention's effect】
As described above, in addition to increased strength of the vegetation mat itself moves dispersing and erosion of the fiber, and, together with the sinking of the fibers can be reliably prevented, germination and growth of plants seeds are not inhibited, In addition, the vegetation mat is hardly peeled off from the vegetation surface by running water or the like, and therefore a greening method suitable for the greening surface and the erosion prevention surface is provided.
[Brief description of the drawings]
FIG. 1 is a perspective view of a vegetation mat used in a greening method according to the present invention , showing a net on a surface side and a part of a seed carrying sheet.
FIG. 2 is an explanatory diagram of installation of a vegetation mat having a vegetation surface such as a river bank.
FIG. 3 is an explanatory diagram of installation of a vegetation mat having a hillside slope as a vegetation surface.
FIG. 4 is an explanatory diagram of the end butting installation of the vegetation mat.
FIG. 5 is an explanatory diagram of end butting installation of a vegetation mat used in another embodiment.
FIG. 6 is an explanatory diagram of end butting installation of a vegetation mat used in yet another embodiment.
FIG. 7 is an explanatory diagram of installation of a vegetation mat used in a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Vegetation mat, 2 ... Matt-like fiber, 3, 4 ... Net, 3a, 4a ... Overhang net part, 8 ... Stop skewer, A ... End face, S ... Vegetation surface , R ... Flowing water direction .

Claims (2)

The net is fixed to both surfaces of the mat-like fiber, and at least one side of the net, the formed Ru vegetation mat by overhang from a side portion of the mat-shaped fiber in the same direction, its end face Install the vegetation mats against each other with the projecting net of one vegetation mat facing the downstream side in the direction of running water. A greening method characterized by sandwiching a side portion and placing a stop skewer on the sandwiched side portion of the other vegetation mat by the projecting net portion . A vegetation mat that has nets fixed on both the front and back sides of the mat-like fiber and at least one side of the net is projected from one side of the mat-like fiber in the same direction , but the end surfaces of the vegetation mats face each other. placed on vegetation surfaces of slopes Te, and when abutting the installation of the vegetation mat, the projecting net portion of one of the vegetation mat toward the inclined lower face of slope, sandwiching the side portions of the adjacent other vegetation mat, A greening method characterized in that a retaining skewer is placed on the side of the other vegetation mat sandwiched by the projecting net.

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