Elastic filter geotextile and preparation method thereof

Abstract

The invention discloses an elastic anti-filter geotextile and a preparation method thereof. The elastic anti-filter geotextile is formed by sequentially superimposing three layers of an upper elastic fiber composite geotextile, an elastic non-woven fabric and a lower elastic fiber composite geotextile, wherein Elastic fiber composite geotextiles are composed of warp yarns, weft yarns and elastic fibers that overlap and interweave each other to form a well-shaped structure. Elastic fibers are woven between adjacent warp yarns and adjacent weft yarns, and warp yarns, weft yarns And the elastic fibers leave pores between each other. The invention adopts a scientific composition structure and weaving process, so that the filter geotextile has elasticity, makes it have a certain self-adaptive ability, and ensures that the pores will not be too large during elastic deformation, and solves the inelasticity of the filter geotextile Ability and easy aging, cracking and other issues.

Description

technical field [0001] The invention relates to an anti-filter geotextile, in particular to an elastic anti-filter geotextile and a preparation method thereof, which can be used for self-adaptive deformation while preventing engineering seepage damage during engineering construction. Background technique [0002] With the continuous construction of national infrastructure in our country, there is a new type of material used in engineering after wood, steel, and concrete—geotextiles. Among them, filter geotextiles are widely used in foundation pit engineering, road subgrades and edges. Slope engineering, sewage treatment, landfill and other projects, and played a vital role in the prevention and control of seepage damage. The engineering function of the filter geotextile is to keep the soil particles under the action of osmotic pressure from being lost while allowing the liquid (such as groundwater) to penetrate, especially in hydraulic engineering, it can effectively prevent...

AI Technical Summary

Problems solved by technology

However, the existing filter geotextiles cannot meet the above requirements, and have the following disadvantages: 1. The mechanical strength is poor, especially the tensile strength and deformation ability are poor, and aging, cracking and other adverse phenomena are prone to occur in various use environments; 2. The weaving process is single, the structure is simple, no elasticity and adaptive deformation ability

[0004] Therefore, in order to meet the existing construction requirements and lower maintenance costs in the later period, for the problems of inelasticity and easy aging and cracking of filter geotextiles, there is an urgent need for an elastic filter with a scientific structure and a certain adaptive deformation ability. Geotextile

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