JP3285292B2 - Vegetation net structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vegetation net structure used for vegetation, earth retaining and the like on an inclined surface (slope).

[0002]

2. Description of the Related Art Conventionally, as the above-mentioned vegetation net structure, there is, for example, a structure shown in FIGS. That is, the conventional vegetation net structure shown in FIG. 7 is composed of upper and lower ground tissues 73, which are formed in a mesh shape not interfering with the warp yarn 71 and the weft yarn 72 to inhibit the growth of grass.
74, a single weaving section S connects the upper and lower ground tissues 73, 74, and a double weaving section D forms a flat circular space 75 between the upper and lower ground tissues 73, 74. The structure is laid on the slope, and the soil (mixed soil), which is a mixture of the soil, fertilizer, seed bark (mulch) or bark compost, grass roots, water, etc. (hereinafter simply referred to as mixed soil) is poured into the space 75 described above. Although the surface protection is intended, a substantially triangular space 76 is formed between the slope to be protected and the vegetation net structure when viewed from the side. There was a problem that the growth of the grass roots was insufficient and sufficient slope protection could not be achieved. In addition, since the method of inflow of the mixed soil described above is limited to the left and right lateral directions, there is a problem that the mixed soil is clogged in the middle of the circular space 75 and the inflow work efficiency of the mixed soil is deteriorated. .

On the other hand, the conventional vegetation net structure shown in FIG. 8 has a vertical ground structure 83 formed by meshing a warp yarn 81 and a coco yarn 82 so as not to inhibit the growth of grass. , 84, and the upper and lower ground structures 8 in the single weave section S
3 and 84, and the upper and lower ground structures 83 and 8 are formed by the double weave section D.
A space portion 85 having a substantially semicircular shape is formed between the vegetation net structures 4 so that the lower ground tissue 84 formed in a flat shape (flat shape) comes into contact with the slope. The ground is laid on the surface and the mixed soil is poured into the space 85 to protect the slope.
A substantially inverted triangular space portion 86 between 5, 85 when viewed from the side.
Is formed, so that the growth of the stems and leaves of the grass in the mixed soil in the space portion 86 becomes insufficient, so that there is a problem that sufficient slope protection cannot be achieved. In addition, since the inflow direction of the above-mentioned mixed soil is limited to the left-right lateral direction as in the conventional structure of FIG. 7, the mixed soil is clogged in the middle part of the semicircular space 85 and the inflow work of the mixed soil is performed. There was a problem that efficiency deteriorated. Also, by appropriately processing the left and right end portions of the conventional vegetation net structure shown in FIG. 8, the above-mentioned mixed soil can be flown into the space portion 85 in a meandering sequence. Since the inflow resistance gradually increases as the amount increases, there is a problem that it is difficult to smoothly and quickly flow the mixed soil into the entire vegetation net structure implemented on the slope.

There is also a revetment mat structure in which upper and lower base fabrics made of nylon or polyester are connected to each other with a rope, and concrete or mortar is poured between the base fabrics to form a revetment. The above-mentioned base cloth has no mesh structure and cannot be used for vegetation.

[0005]

THE INVENTION Problems to be Solved] The inventions are, to the slopes
Vegetation net structure into which mixed soil flows after laying
And a warp thread and a weft thread along the slope direction.
That mesh and below the foundation structure that will knotting at stitching means such that the mutually parallel, it is possible to maintain a constant distance between the upper and lower ground structure by the knotting means, the mixed soil from above It can flow smoothly downward and in a short time, and can grow enough grass to improve the slope protection effect.
To reduce the flow resistance of the mixed soil.
It is an object of the present invention to provide a vegetation net structure that can be used.

According to one embodiment of the present invention, the number of weft yarns at the portion where the above-mentioned connecting means and the ground tissue are joined is increased to supplement the number of weft yarns.
By forming the strong part , both (connection means and ground organization)
It is an object of the present invention to provide a vegetation net structure capable of improving the bonding strength of the soil and the strength of the ground structure itself.

[0007] One embodiment of the invention, constituting child reinforcing portion by adding a warp yarn number of sites stitching means is oriented
Accordingly, an object of the present invention is to provide a vegetation net structure capable of reinforcing the bonding strength of the bonding means and the strength of the ground structure itself.

One embodiment of the present invention according to claim 4 is as follows .
By using a twisted yarn such as twine (two or more yarns having an appropriate strength) as the above-mentioned bonding means, the strength of the structure can be improved by the bonding means itself. An object of the present invention is to provide a vegetation net structure that does not require the use of a reinforcing rope or the like when fixing the vegetation net structure to a so-called heaven above the slope.

[0009]

In order to solve the problems] The value for the vegetation of this inventions
The cut-out structure is a plant where mixed soil flows in after laying on the slope.
A raw net structure, with the upper and lower ground textures formed in a mesh shape not interfering with the warp yarn and the weft yarn along the slope direction of the above-mentioned slope to prevent vegetation. the upper and lower local organizations and a knotting means for knotting alternately above and below the local tissue to be mutually parallel at a predetermined distance, the
The binding means is disposed in the warp direction of the ground structure .

[0010] In one embodiment of the present invention, the reinforcing portion is formed by increasing the number of weft yarns at the portion where the connection means and the ground structure are connected .

In one embodiment of the present invention, the number of warp yarns at the portion where the binding means is oriented is increased to enhance the reinforcing portion.
It is what constituted .

[0012] Monodea In one embodiment of the invention, which is set to the stitching means into twisted yarns, such as TWAIN
You .

[0013]

[Operation and effect of the invention] According to the inventions, spread to the slopes
Vegetation net structure into which mixed soil flows after installation
The vertical and horizontal textures formed by meshing the warp yarns and weft yarns along the slope direction of the above-mentioned slope are formed parallel to each other at a predetermined interval so as to be parallel to each other at a predetermined interval. Since the spaces are alternately joined by the above-described joining means, the spacing between the upper and lower ground structures can be kept constant by this joining means, and when the mixed soil flows in after laying on the slope, Has the effect of allowing this mixed soil to flow smoothly from top to bottom in a short time, and does not form an unnecessary space that inhibits the growth of grass. From grass roots and seeds mixed into grass roots, stems,
There is an effect that sufficient growth of the leaves can be achieved and the slope protection effect can be improved. In addition, when the vegetation net structure is stored, the upper and lower ground tissues can be folded in contact with each other, so that the vegetation net structure can be stored compactly. I
If the above-mentioned connecting means is used in the warp direction of the ground texture,
Since it is arranged in the direction of inclination, the flow resistance of the mixed soil is reduced.
Can be

According to one embodiment of the present invention, a reinforcing portion is formed by increasing the number of weft yarns at a portion where the above-described connecting means and the ground structure are joined, and the weft yarn density at the portion is increased. This has the effect of increasing the bonding strength between the bonding means and the ground structure and the strength of the ground structure itself with the weft yarn.

According to one embodiment of the present invention, the number of warp yarns at the portion where the above-mentioned connecting means is oriented is increased to enhance the reinforcing portion.
Since the warp yarn density at the portion is increased, there is an effect that the bonding strength of the bonding means and the strength of the ground structure itself can be reinforced by the warp yarn .

According to one embodiment of the present invention, as the above-mentioned binding means, a twisted yarn such as twine (a plurality of twisted yarns having an appropriate strength) is used.
There is an effect that the strength of the structure can be improved by the connecting means itself, particularly, the supporting strength for supporting the upper and lower ground structures at predetermined intervals.

In addition, when the vegetation net structure is fixed to the so-called heaven on the slope by using the above-mentioned twisted yarn such as twine, there is an effect that it is not necessary to use a reinforcing rope as before.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. The drawing shows a vegetation net structure. In FIG. 1, this vegetation net structure is mixed soil after laying on a slope.
Is a net structure for vegetation into which
A number of warp yarns 1 and a large number of weft yarns 2 along the inclination direction are interlaced to form a mesh that is stabilized and fixed, and is formed into a mesh shape that does not hinder vegetation by forming imitation weaving or leno weaving. Upper ground structure 3 formed and lower ground structure 4
The upper and lower structures 3 and 4 extend in the direction of the warp yarn 1 such that the upper and lower structures 3 and 4 are parallel to each other at a predetermined interval L (a minimum of 5 cm) in the vertical direction. Twisted yarns 5 such as twine as a connecting means, preferably, are alternately connected by a strong rope.

Here, as the warp yarn 1 and the weft yarn 2, monofilaments of polyethylene, polypropylene or polyolefin can be used as synthetic fibers, and when corrosion is required after casting, hemp or the like is used. In this example, the ground textures 3 and 4 were formed in a mosaic weave using 1,000 denier polypropylene monofilament yarn among the various materials described above. The density of the warp yarn 1 was set to 52.5 yarns / inch, and the density of the weft yarn 2 was set to 22 yarns / inch.

As the twine 5 described above, a woven yarn obtained by combining a plurality of nylon or polyester yarns can be used. In this embodiment, a high-strength nylon twine 210 denier / 6 × 3 Was used. In addition, this twine 5 is composed of each weft 2 of the ground organization 3 and 4.
Specifically, the connecting portion 5a entangled so as to pass from above the weft thread 2 to below the next weft thread 2 and further pass over the next weft thread 2 and the upper ground structure 3 There is provided an interval holding portion 5b which connects the end of the connecting portion 5a and the end of the connecting portion 5a in the lower ground tissue 4 to secure the above-mentioned predetermined interval L.

Further, the above-mentioned space holding portions 5b, 5b are formed at predetermined intervals A in the warp direction, and a plurality of twines are formed at predetermined intervals B in the weft direction of the upper and lower ground structures 3, 4. 5 ... are arranged.

Further, by increasing the number of weft yarns 2 at the portion corresponding to the end in the above-mentioned joint portion 5a, reinforcing portions 6 having a large weft yarn density are formed in the upper and lower structures 3 and 4, and
The number of warp yarns 1 in the region where the twine 5 is oriented is increased, and reinforcing portions 7 having a high warp yarn density are formed in the upper and lower structures 3 and 4. Here, the weft high-strength nylon yarn 840 denier × 3 at the transfer portion of the twine 5 was used as a reinforcing yarn over four.

FIG. 1 shows only the double-woven portion of the vegetation net structure. However, the left and right ends of the vegetation net structure are woven in a single layer, and upper and lower tissues 3 and 4 are joined. Needless to say, when laying the vegetation net structure on the slope, the lower end is cut in the field, and the cut lower end of the lower ground structure 3 and the lower end of the lower ground structure 4 are joined to each other, and mixed. It is configured so that soil does not flow out.

The illustrated embodiment is configured as described above, and the operation will be described below. To perform slope protection using the above-described vegetation net structure, a vegetation net structure is first laid on the slope as shown in FIG. From the double-woven portion, that is, the portion where the two 3 and 4 are not joined and the opening corresponding to the predetermined interval L is provided, the soil, fertilizer, seed, bark (humus) or bark compost, grass roots, water, etc. Of mixed soil (mixed soil) C.

The above-mentioned mixed soil C passes between the upper and lower ground structures 3 and 4 held at a predetermined interval L by the interval holding portion 5b of the twine 5 along the slope of the slope as shown by arrows in FIG. It flows down smoothly from above to below. After a certain number of days have passed after the completion of such enforcement, the seeds and grass roots contained in the above-mentioned mixed soil C are changed from the grass roots to the grass roots as shown in FIG.
Stems and leaves grow from the mesh portions of the upper and lower tissues 3 and 4 to complete vegetation.

Thus, after laying on the slope, the mixed soil C
In the inflow vegetation net structure,
The upper and lower ground structures 3 and 4 formed in a mesh shape by crossing the warp yarn 1 and the weft yarn 2 along the oblique direction are parallel to each other at a predetermined interval L. Since the portions 3 and 4 are alternately connected by the above-mentioned connecting means (see Twine 5), the distance L between the upper and lower ground structures 3.4 can be kept constant by this connecting means, and When the mixed soil C flows in after being laid on the surface,
Has the effect of smoothly flowing in a short time from above to below, and does not form an unnecessary space that inhibits the growth of grass. This has the effect of achieving sufficient growth of grass roots, stems and leaves from seeds and seeds, thereby improving the slope protection effect. In addition, when storing the vegetation net structure, the upper and lower ground tissues 3 and 4 can be folded in contact with each other, so that they can be stored compactly. And above
The binding means should be in the direction of the warp yarns 1
Since it is arranged in the direction of inclination, the flow resistance of the mixed soil is reduced.
Can be

In addition, the number of the weft yarns 2 at the portion where the above-mentioned connecting means (see Twine 5) and the ground structures 3 and 4 are connected (in this embodiment, the portion corresponding to the end of the connecting portion 5a). And the reinforcing portion 6 is formed to increase the weft thread density at the portion, so that the bonding strength between the bonding means (see Twine 5) and the ground structures 3, 4 and the ground structures 3, 4 There is an effect that the strength of itself can be enhanced by the weft yarn 2.

Further, the above-mentioned connecting means (see Twine 5 )
There was added a number of warp yarn 1 of the site to be oriented, reinforcing portion
7, and the warp yarn density at the portion was increased, so that the bonding strength of the bonding means (see Twine 5) and the ground structure 3,
4 has the effect that the strength of the warp yarn 1 itself can be reinforced by the warp yarn 1 .

Further, as the above-mentioned connecting means, twine 5
(Twine, which is made by combining a plurality of yarns to have an appropriate strength), the strength of the structure by the connecting means itself, especially the strength of the support that supports the upper and lower ground structures 3, 4 at a predetermined distance L There is an effect that improvement can be achieved. Furthermore, when the above-mentioned twine 5 is used, when the vegetation net structure is fixed to the upper part of the slope, the so-called heaven, there is an effect that it is not necessary to use a reinforcing rope or the like as before.

FIG. 4 shows another embodiment of the vegetation net structure. In the previous embodiment shown in FIG. 1, two adjacent spacing members 5b, 5b in the twine 5 are arranged in parallel with each other. However, in the embodiment shown in FIG. 4, the two interval holding portions 5b, 5b of the twine 5 are arranged so as to intersect in an X shape when viewed from the side. Even with such a configuration, substantially the same operation and effect as in the previous embodiment can be obtained. Therefore, in FIG. 4, the same portions as those in the previous figure are denoted by the same reference numerals, and detailed description thereof will be omitted.

FIG. 5 shows still another embodiment of the vegetation net structure. In each of the preceding embodiments shown in FIGS. 1 and 4, the length of the connecting portion 5a of the twine 5 is substantially equal to a predetermined interval A. In the embodiment shown in FIG. 5, the length of the joint 5a in the twine 5 is set to be relatively short, and the end of the joint 5a in the upper ground structure 3 and the lower ground are set. Two space holding portions 5b, 5b connecting the ends of the connection portions 5a in the tissue 4 are arranged so as to intersect in an X-shape when viewed from the side, and are formed vertically with a predetermined space E therebetween. 5 in each organization 3 and 4
The number of the weft yarns 2 is increased only at the portion where the a is provided, and the reinforcing portion 6 having a higher weft yarn density is formed. Here, the connecting portion 5a of the above-described twine 5 has upper and lower ground structures 3,
The yarn 4 has a leno weave, and the twine structure of the connecting portion 5a prevents the twine 5 from shifting. The above-mentioned predetermined interval L, that is, the height, is set by a trigonometric function based on the length of the interval holding portions 5b, 5b as floating weave portions. Even with such a configuration, substantially the same operation and effect as those of the previous embodiments can be obtained. Therefore, in FIG. 5, the same parts as those in the previous figure are denoted by the same reference numerals, and detailed description thereof will be omitted.

FIG. 6 shows still another embodiment of the vegetation net structure. In this embodiment, the length of the connecting portion 5a of the twine 5 is slightly longer than that of the previous embodiment shown in FIG. In addition, the width of the reinforcing portion 6 having a large weft thread density is also set slightly longer.

Even with this configuration, the same operation and effect as those of the previous embodiment shown in FIG. 5 can be obtained. Therefore, in FIG. 6, the same parts as those in FIG. Description is omitted.

In correspondence with the structure of the present invention and the above embodiment, the warp yarn and the weft yarn of the present invention are the warp yarn 1 and the weft yarn 2 made of the polypropylene monofilament of the embodiment.
In the same manner, the upper and lower ground textures correspond to the upper ground texture 3 and the lower ground texture 4 which are formed by imitation weaving and leno weaving, and the binding means is a nylon or polyester twine 5 However, the present invention is not limited to the configuration of the above-described embodiment.

The thickness of the warp yarn 1, the weft yarn 2 and the twine 5 to be used may be appropriately selected according to the required strength. Further, the predetermined intervals A, shown in the above embodiments,
B and E are preferably about 5 cm. Furthermore, when corrosion is required after casting, it is recommended to use natural fibers that are hard to stretch and have strength such as hemp for warp yarns and weft yarns.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part showing a vegetation net structure of the present invention.

FIG. 2 is an explanatory diagram when performing slope protection using the vegetation net structure of the present invention.

FIG. 3 is an explanatory view when the vegetation is completed.

FIG. 4 is a perspective view of a main part showing another embodiment of the vegetation net structure of the present invention.

FIG. 5 is a perspective view of an essential part showing still another embodiment of the vegetation net structure of the present invention.

FIG. 6 is a main part perspective view showing still another embodiment of the vegetation net structure of the present invention.

FIG. 7 is a schematic explanatory view showing a conventional vegetation net structure.

FIG. 8 is a schematic explanatory view showing another example of a conventional vegetation net structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Warp yarn 2 ... Weft yarn 3 ... Upper ground structure 4 ... Lower ground structure 5 ... Twine (twist yarn)6,7 ... Reinforcing part  L: predetermined interval

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hisatomi Fujii 95-4 Rofukuji, Kashiba City, Nara Prefecture (56) References Jikai Sho 62-91913 (JP, U) (58) Field surveyed (Int.Cl . ^7, DB name) E02D 17/20 102 E02D 17/20 103 D03D 1/00 D03D 11/00 A01C 1/00

Claims (4)

(57) [Claims] 1. Vegetation into which mixed soil flows after laying on a slope
A vertical net structure formed in a mesh shape not interfering with vegetation by intersecting a warp yarn and a weft along the slope direction of the slope , and organization and a knotting means for knotting alternately above and below the local tissue to be mutually parallel at a predetermined distance, nets for vegetation is disposed in the warp direction of the ground structure of the knotting unit structure body. 2. The vegetation net structure according to claim 1, wherein a reinforcing portion is formed by increasing the number of weft yarns at a portion where the connecting means and the ground tissue are joined. Wherein the upper Kise' forming means vegetation net structure configured claims 1 or 2, wherein the reinforcing portion by adding a warp yarn number of sites to be aligned. 4. The vegetation net structure according to claim 1, wherein said binding means is set to a twist yarn such as twine.