KR101732153B1 - textile geogrid for ground reinforcement - Google Patents

Abstract

BACKGROUND OF THE INVENTION Field of the Invention [0002] The present invention relates to a textile geogrid for reinforcing a ground, comprising a plurality of intersections formed by intersecting a plurality of unit wefts and unit tilt in a lattice pattern at intervals, a ground yarn for weaving unit lattice and unit tilt, Wherein the ground yarns extend parallel to both sides along the longitudinal direction of each unit tilt, and the circumference of the unit weft yarns at the intersections is formed by the unit yarns, the unit yarns and the covering yarns covering the ground yarns, And a second ground yarn connecting the first ground yarns on both sides of the unit warp in a zigzag-shaped quadrangular pattern, wherein the first ground yarn is formed by weaving the first ground yarn and the second ground yarn, 2 The ground yarn has the same weaving pattern for the entire unit weft and the unit warp. .
As a result, the weaving process of the unit weft yarn and the unit yarn can be greatly simplified, and the product can be produced quickly, which is very useful in mass production.

Description

Textile geogrid for ground reinforcement {textile geogrid for ground reinforcement}

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a textile geogrid for reinforcing a ground, and more particularly to a textile geogrid that is capable of reducing deformation and separation phenomena due to external stress by further improving the binding strength with respect to the contact fixing positions of warp and weft, Textile geogrid for soil reinforcement.

Generally, various kinds of reinforcing materials for reinforcing soil are being developed when civil engineering works are carried out.

Geosynthetics, which is produced by using polymeric synthetic resin solution, is widely known as a representative civil engineering reinforcement material using a fiber material. This is because it is a geitextile having permeability characteristic, Geomembrane and reinforcement are developed with geogrid, geonet and geocomposite. In the early days, it was mainly used to prevent the scouring of tofu and was used for filtration. In recent years, , It is used for various purposes such as preventing cracks, protecting geotechnical structures and absorbing impacts.

Among the above geosynthetics, geogrids are classified into rigid plastic geogrid, which is manufactured in a sheet form, and textile geogrid, which is produced in a soft and woven form, and plastic geogrid is known as a sheet made of polyethylene or polypropylene The textile geogrid is produced by weaving a synthetic fiber in a lattice form and coating a resin solution (polyvinyl chloride, acrylic, latex, rubber, or the like) on the outside (outer surface) Coated on the surface of the substrate).

The geogrids are divided into two types. One is generally forming a warp by gathering a plurality of strands of warp yarns, collecting a plurality of strands of weft to form a weft yarn, and using a conventional warp knitting machine, (Coating) a resin solution coating layer on the outside of a net made like this, and the other is formed by further knitting a ground yarn at the intersection of several strands of warp yarns and weft yarns, And coating (coating) the solution coating layer.

Fig. 1 shows a textile geogrid of Utility Model Registration No. 20-0296423 registered as a prior art. However, in the above configuration, the ground yarn 34 is wound around the outer peripheral surface of the warp yarn 32 to reinforce the widening of the warp yarn 32 so that the warp yarn is not loosened. Only the warp yarns are reinforced, 30 or the weft yarn 30 and the warp yarns 32 can not be expected to be reinforced so that the contact points where the weft yarns 30 and the warp yarns 32 cross each other are easily separated when the vertical load is generated.

Registration Utility Model No. 20-0296423 (November 14, 2002)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the conventional art, and it is an object of the present invention to provide a method of manufacturing a warp- And to provide a geotextile geotextile which can reduce the development of the geotextile.

In order to accomplish the above object, the present invention provides a geotextile geogrid for reinforcing a ground, comprising: a plurality of intersections formed by intersecting a plurality of unit wefts and unit tilt in a lattice pattern at intervals, A ground yarn for weaving a warp yarn and a covering member for covering the unit yarn, a unit warp, and a ground yarn, wherein the ground yarn extends parallel to both sides along the longitudinal direction of each unit warp, And a second ground yarn connecting the first ground yarns on both sides of the unit wedge in a zigzag pattern in a zigzag pattern, wherein the first ground yarn is formed by weaving a weft yarn around the unit weft , The first ground yarn and the second ground yarn are divided into a unit weft yarn and a unit yarn yarn It characterized in that it contains the same weaving pattern.
The second ground yarn is weaved in a state of wrapping around the first ground yarn at one side of the unit tilt to form a second knot loop and then proceeds to the other first ground yarn through the unit tilt in the diagonal direction to form a third knot loop .
And a second knot loop and a third knot loop of the second ground yarn at the intersection of the unit weft yarn and the unit yarn loop are formed with respect to the first ground yarn between each unit weft yarn.

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According to the present invention having the above-described structure, since the first ground yarn and the second ground yarn are woven in the same weave pattern with respect to the whole weft yarn and the unit yarn, the process of weaving a unit yarn and a unit yarn is greatly simplified It is possible to produce the product quickly, which is very useful for mass production.

In addition, the ground yarn may be constituted by a first ground yarn forming a first knot loop for directly or indirectly binding each unit yarn and unit yarns, and a second ground yarn forming a second knot loop and a third knot loop, It is possible to stably maintain the binding force and the tensile force, which are not separated from each other by the ground yarn, even when the soil pressure of the ground is biased on the inclination or weft of the geogrid, and thus the soil pressure can be efficiently dispersed .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing a textile geogrid construction according to the prior art; FIG.
FIG. 2 is a plan view of a textile reinforced geogrid according to an embodiment of the present invention.
3 is a partial enlarged view of Fig.
4 is a perspective view showing the structure of a unit tilt made of synthetic fiber yarn.
5 is a perspective view showing a knot structure of the first ground yarn and the second ground yarn constituting the ground yarn of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 2 to 5 attached hereto.

As shown in the drawing, the textile reinforcing textile geogrid according to the present invention includes a plurality of warp yarns 100 arranged parallel to each other in an oblique direction at predetermined intervals, and a plurality of warp yarns 100 parallel to the warp yarns 100 A weft yarn 300 that binds the weft yarns 100 and the weft yarns 200 and a weft yarn 300 that weaves the weft yarns 100 and the weft yarns 200 and the ground yarns 300 into an integral structure (Not shown) for coating with a resin coating liquid to form a coating layer (not shown).

The geogrids have a structure in which a plurality of warp yarns 100 and weft yarns 200 intersect with each other in a lattice pattern to form a plurality of intersections C, and the fabric is produced by a weaving machine for weaving synthetic fiber yarns. The synthetic fiber yarn is preferably a high strength polyethylene yarn.

Of course, the synthetic fiber yarn may be any material as long as it has a reference physical property with a certain strength suitable for ground reinforcement.

Specifically, the warp yarns 100 are formed by knitting a plurality of strands of a yarn 101 having a thickness of 1000 deniers into a single unit yarn 110. The unit slope 110 may be formed to have a size of 7000 denier or 24000 denier.

The warp yarns 100 according to the present invention are fabricated from 3 to 5 unit warp yarns 110 each consisting of a plurality of synthetic fibers and each unit yarn 110 is twisted 30 to 40 times per 1 m .

The reason why the warp yarns 100 are twisted 30 to 40 times is that the space between the bundled yarns 101 of 1000 denier is removed so that the tensile strength due to the tightening strength due to close contact can be greatly improved , And the straightness can be stably maintained without bending deformation with respect to the longitudinal direction.

In addition, when the number of twists of the warp yarns 100 is less than 30, the tensile strength of the warp yarns 100 decreases as the strength of the warp yarns is reduced. When the number of twists is more than 40, The contact force to the portion where the weft yarns 200 intersect is greatly reduced. Therefore, it is preferable that the number of twists of the warp yarns 100 is set to 30 to 40 per 1 m.

The weft yarns (200) are arranged in parallel in a weft direction intersecting with the warp yarns (100) at a predetermined interval.

The weft yarn 200 is made of the same or similar material as the warp yarn 100 described above, and a detailed description thereof will be omitted.

However, the weft yarn 200 need not be twisted like the warp yarns 100, but may be formed of a unit yarn 210 having a plurality of strands gathered in a yarn of 1000 denier.

The ground yarn 300 binds the unit warp yarns 110 to 3 to 5 and the unit weft yarns 210 to 3 to 5 and connects the unit warp yarns 110 to the unit weft yarn 210 So as not to fluctuate.

The ground yarn 300 according to the present invention is formed by weaving the weft yarns 300 in parallel to each other along the longitudinal direction of the unit warp yarns 110 and wrapping the unit weft yarns 210 at the intersections C, A first ground yarn 310 forming a loop 311 and a second ground yarn 320 connecting the first ground yarns 310 on both sides of the unit tilt 110 in a zigzag- .

In other words, the first ground yarn 310 is disposed parallel to both sides of the unit tilting 110, and the intersection C is formed at an exaggeration extending parallel to the moving direction of the unit tilting 110, The unit weft yarns 210 are knitted. At this time, the first ground yarn 310 can firmly weave the unit yarn 210 by the structure of the first knot hook 311 that wraps around the unit knitted fabric 210 in a one-turn winding manner.
This configuration of the first knot hook 311 can prevent loosening or flow of connection points where the unit yarns 210 and the first ground loom 310 are in contact with each other, And it is possible to stably maintain the separation distance between the weft yarns 200 arranged at regular intervals.

The second ground yarn 320 is a component that interweaves first ground yarns 310 woven adjacent to both sides of the unit tilt 110. That is, the second ground yarn 320 binds the first ground yarn 310 adjacent to the unit weft yarn 210 and indirectly presses and fixes the unit yarn 110.

Specifically, the second ground yarn 320 is knitted in a state of wrapping around the first ground yarn 310 on one side of the unit yarn 110 to form a second knot loop 321, The first ground yarn 310 is knitted with the structure that the third ground yarn 322 is formed by advancing to the first ground yarn 310 through the first ground yarn 110.

That is, the second ground yarn 320 has a structure in which the first ground yarns 310 woven in parallel to one side and the other side of the unit slope 110 are woven in a zigzag-shaped four-line pattern.
Particularly, since the first ground yarn 310 and the second ground yarn 320 are woven in the same weave pattern with respect to the whole unit yarn 210 and the unit yarn 110, It is possible to greatly simplify the weaving process of the unit warp yarns 110 and to produce the product quickly, which is very useful for mass production.

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The second ground yarn 320 is uniformly in contact with the unit ground yarns 110 in the process of weaving the first ground yarn 310 on one side and the first ground yarn 310 on the other side, The quality of the product due to the strengthening of the binding force can be further improved.
The second knot hook 321 and the third knot hook 322 of the second ground yarn 320 at the intersection C of the unit weft yarn 210 and the unit warp yarn 110 are wound around each unit yarn 210 The first ground yarn 310 is sandwiched between the first ground yarn 310 and the first ground yarn 310.

The ground yarn 300 according to the present invention includes a first ground yarn 310 forming a first knot loop 311 which directly or indirectly binds the unit yarns 110 and the unit yarns 210, The second ground yarn 320 in which the second knot hook 321 and the third knot hook 322 are formed enables the ground pressure of the ground to be biased evenly on the warp 100 or weft yarn 200 of the geogrid The binding force and the tensile force which are not separated from each other by the ground yarn 300 can be stably maintained at the same time, so that the soil pressure can be efficiently dispersed.

The cover member is a component that covers the warp yarn 100, the weft yarn 200, and the ground yarn 300 with a resin coating solution to form an integral unitary structure.

The resin coating of the covering member may be prepared by impregnation, spraying, brushing, or the like.

Since the structure of the cover member is well known in the art, a detailed description thereof will be omitted.

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According to the present invention, the first ground yarn 310 and the second ground yarn 320 are woven in the same weave pattern with respect to the entire unit yarns 210 and the unit yarns 110, It is possible to greatly simplify the weaving process of the weft yarns 210 and the unit warp yarns 110 as well as to produce the products quickly, which is very useful in mass production.

The ground yarn 300 may include a first ground yarn 310 forming a first knot loop 311 that directly or indirectly binds the unit yarns 110 and the unit yarns 210, The second ground yarn 320 having the first knot hook 321 and the third knot hook 322 is formed so that even when the soil pressure of the ground is biased to bias the geogrid 100 or the weft yarn 200, 300, the binding force and the tensile force which are not separated from each other can be stably maintained at the same time, and the soil pressure can be efficiently dispersed.

100: Slope 101: Yarn
110: unit warp 200: weft
210: unit weft 300: ground yarn
310: first ground yarn 311: first knot ring
320: second ground yarn 321: second knot ring
322: Third knot ring

Claims (5)

A plurality of intersections formed by intersecting a plurality of unit wefts and unit slopes at intervals in a lattice pattern, a ground yarn weaving the unit weft and the unit tilt in a lattice form, and a ground yarn covering the unit weft yarn, A textile reinforcement geogrid comprising a covering member,
The ground yarn includes a first ground yarn extending parallel to both sides along a longitudinal direction of each unit tilt and forming a first knot loop in a state of wrapping around the unit weft yarn at an intersection, And second ground yarns connecting the first and second ground yarns in a zigzag type quadrangular pattern,
Wherein the first ground yarn and the second ground yarn have the same weave pattern with respect to all of the unit weft yarns and the unit yarns,
The second ground yarn is woven in a state of wrapping around the first ground yarn of one side of the unit tilt to form a second knot loop and then proceeds to the other first ground yarn through the unit tilt in a diagonal direction to form a third knot loop ,
Wherein a second knot loop and a third knot loop of the second ground yarn are formed with respect to the first ground yarn between the unit weft yarns at intersections of the unit weft yarns and the unit yarns.
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