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Warp knitting geogrid built from synthetic fiber in high strength

A technology of synthetic fiber and geogrid, applied in warp knitting, road reinforcement, textile and paper making, etc., can solve the problem of low elongation, achieve good elongation, not easy to break, and improve the effect of tensile strength

Inactive Publication Date: 2010-01-06
CHANGZHOU TIANMA GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the warp and weft of the grid are glass fiber strands, the elongation is low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Warp knitting geogrid built from synthetic fiber in high strength
  • Warp knitting geogrid built from synthetic fiber in high strength
  • Warp knitting geogrid built from synthetic fiber in high strength

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] See Figure 1 to Figure 4 , The warp-knitted high-strength synthetic fiber geogrid of this embodiment has a mesh fabric 1 and a reinforcement 2. The net gray cloth 1 is made by warp yarn 11 and weft yarn 12 through the chain thread 13 through the warp knitting machine. There are two warp yarns 11 in each group of mesh gray cloth 1, one weft yarn 12 in each group, and 13 chain threads in each group. There are four; the reinforcement 2 is arranged around the mesh gray cloth 1, and is bonded and fixed on the monofilaments of the warp yarn 11 and the weft yarn 12 of the mesh gray cloth 1 and bonded between these monofilaments, so that the mesh gray cloth 1 becomes and reinforces. Object 2 is bonded into one geogrid.

[0022] The warp yarn 11 and the weft yarn 12 in the mesh gray cloth 1 of the present embodiment are polypropylene fiber bundles, and the braided chain yarn 13 used is a high-strength polyester filament. The knitting chain mode of knitting chain line 13 is no...

Embodiment 2

[0027] The rest are the same as in Example 1, except that the mesh fabric 1 selected in this example is composed of two warp yarns 11 as a group, two weft yarns 12 as a group, and four chain lines 13 as a group. The weight of the reinforcing material 2 accounts for 20% of the total weight of the warp-knitted high-strength synthetic fiber geogrid for the mesh fabric formed by knitting and chaining by a warp-knitting machine.

Embodiment 3

[0029] The rest are the same as in Example 1, the difference being that the mesh fabric 1 selected in this example is made of three warp yarns 11 as a group, three weft yarns 12 as a group, and six chain lines 13 as a group through the warp knitting machine. For the mesh fabric formed by knitting chains, the weight of the reinforcement 2 accounts for 40% of the total weight of the warp-knitted high-strength synthetic fiber geogrid.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The present invention relates to a warp-knitted high-strength synthetic fiber geogrid. It has higher strength and good extensibility, and can be applicable to strengthening requirements of different road surfaces, roadbeds, slope surfaces and roads. The invented warp-knitted high-strength synthetic fiber geogrid has net gray fabric and strengthening material. Said net gray fabric is made up by using warp yarn and weft yarn through a certain pillaring process of warp-knitting machine, said strengthening material is distributed around net gray fabric, said strengthening material and net gray fabric are adhered together so as to form the invented geogrid.

Description

technical field [0001] The invention belongs to a fiber geogrid used for road surface reinforcement, soft ground treatment or slope protection. Background technique [0002] In the construction of roadbeds, dams, slope protection and other projects, reinforcement materials are often used on the soil to transfer the friction between the roadbed and the soil to the reinforcement materials to protect the roadbed and prevent soil erosion when used for slope protection. . [0003] Chinese patent document CN2561822Y discloses a "refined composite grid", which is based on a high-strength polypropylene or polyethylene belt as a force-bearing unit, and is composed of at least two single belts to form a longitudinal belt and a horizontal belt of the grid. , the vertical and horizontal bands are interwoven. However, since the grid is composed of longitudinal belts and horizontal belts, the material strength loss of this yarn belt is large during the weaving process, and the adjustmen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C11/16D04B21/14D06N7/00
Inventor 解桂福敖文亮史建军方文叶翁海宁黄子伟张从勇朱忠裕
Owner CHANGZHOU TIANMA GROUP CO LTD