Earth-work fabric of inter woven flat monofilament and split film yarn and its use

Abstract

The present invention relates to earth-work fabric technology, and is especially one kind of earth-work fabric with interwoven flat monofilament and split film yarn. The earth-work fabric is made with synthetic resin as raw material and has stereo opened netted structure with flat monofilament as warp yarn and split film yarn as weft yarn. The earth-work fabric has initial speeded water draining effect, and can form solidified colloidal earth layer in the earth side to produce friction resistance to other earth, reduce earth motion and form water draining passage in the interwoven parts.

Description

technical field [0001] The invention relates to the technical field of engineering fabrics. Background technique [0002] There are many types of existing engineering fabrics (such as: geotextiles, etc.), and the technology for its preparation and application has been reported in periodicals and patent documents. As reported in the patent us9922613, a geotextile fabric for strengthening earth walls, embankments, etc. is disclosed, and the weaving structure and material of this geotextile are disclosed. Most of the patents report the improvement of various geotextile raw materials, such as patent us2002007336 and so on. For geotextiles used for anti-silting, etc., there are fewer reports. [0003] In the actual application of existing geosynthetic woven fabrics, split-filament woven fabrics or filament woven fabrics are mostly used to achieve the purpose of filtration and drainage, and to perform reverse filtration on water-containing sand. [0004] Split membrane yarn wov...

AI Technical Summary

Problems solved by technology

[0006] The defect of the woven fabric made of split-filament yarn or filament woven fabric for geosynthetics is that in the manufacturing process, the split-filament woven fabric is mostly produced by a circular weaving machine, and the weaving principle is free-state tension. The tension and weft weaving process cannot guarantee the stable pore size and uniform density structure of the fabric produced; although some of them are manufactured by shuttleless flat looms, they also use the interweaving technology of flat membrane yarn and split membrane yarn. Lack of hardness, no supporting effect, the pore size of the fabric and the uniform density structure stability defects have not been overcome, and ordinary split silk woven fabrics, when the pore size is large, water and soil will be lost at the same time, and when the pore size is small, it is easy to lose weight under strong pressure. Deformation causes clogging

However, due to the large number of pores per unit area and most of them are micropores, it is easy to stagnate and block when dealing with silt soil, and the drainage capacity decreases; after the pore size is enlarged, due to the direct permeability of the pores, the self-adhesive force of the soil cannot be used, forming Drainage and sand retention layer, causing sand run-off, also cannot effectively treat muddy soil

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