A kind of warp-knitted polyester glass fiber three-dimensional slope-fixing soil grid and its preparation method

Abstract

The invention relates to a warp-knitted polyester glass fiber three-dimensional slope protection soil fixation grating and a preparation method thereof, and in particular relates to a multi-grid grating formed by weaving polyester fiber yarns and glass fiber yarns and a preparation method thereof. Transverse gratings of the grating are formed by arranging glass fiber yarns and polyester fiber yarns; longitudinal gratings of the grating are glass fiber yarns; joints of transverse gratings and longitudinal gratings of grids are bound by polyester wires; after the grating is heated, the glass fiber yarns of the transverse gratings of the grids are upwards bent and protruded from binding points on two sides to form a three-dimensional state of the grating; and a solidification layer formed by waterproof adhesive emulsion is arranged on the surface of the grating. The grating in the preparation method is easy in production and manufacture and high in efficiency; in a construction paving process, the stability of the length and the width of the grating is good; a large area of gratings are paved; the construction difficulty is low; the warp-knitted polyester glass fiber three-dimensional slope protection soil fixation grating is used on the surface of a slope body, and a slope fixing effect is good; and even if the grating is corroded by rainwater for a long time and is immersed in water, the grating still has enough strength.

Description

technical field [0001] The invention belongs to the field of water and soil conservation, and in particular relates to a warp-knitted polyester glass fiber three-way slope-fixing soil grid and a preparation method thereof. Background technique [0002] With the rapid development of highways and high-speed railways, the protection of soil and vegetation on hillsides and road slopes is becoming more and more important. If the mining of various mineral deposits is not protected in time, it will cause many disasters such as landslides and mudslides, which will cause great losses to the country and the people. [0003] The soil quality of hillsides and road slopes will become soft after soaking in rainwater. The soil that becomes soft after being soaked by rainwater on the slope is very easy to slide under the action of the sliding force and the scouring force of rainwater, forming a landslide. Severe landslides can lead to road interruptions and road damage. As a new type of ...

AI Technical Summary

Problems solved by technology

Its disadvantages: First, the production is cumbersome and the efficiency is low

First of all, the plastic should be turned into plastic strips through a plastic extruder, and then the plastic strips are welded piece by piece according to the requirements. The welding is all done by hand, so the production efficiency is low; the second is that it is not convenient for construction.

The welded finished cells are small units, each with an area of ​​only a few square meters. In the construction of large slope protection, they need to be connected one by one. Not only is the construction troublesome during the butt joint process, but also the strength of the butt joints will be greatly affected. The third is that the plastic itself (usually polypropylene or polyethylene) will have a significant decrease in strength after a long time, which will lead to a decrease in the strength of the entire slope protection body; the fourth is plastic The cell is a mesh structure welded by plastic tape, the width of the plastic tape is the height of the cell

In its plane, there are no vertically arranged yarns to play a reinforcing role. During the construction and laying process, its length and width stability is poor, and it is difficult to grasp. Large-scale laying makes construction difficult; fifth, the production cost is high.

[0005] The current three-dimensional plastic mesh is also made of plastic (polypropylene or polyethylene), and the plastic filaments extruded by a plastic extruder are continuously and irregularly tiled, and finally passed through a mold to hot-roll out uneven pits. shape, the difficulty of processing is relatively simple, but because of its network structure, it is easy to deform when subjected to external tension, and it is very easy to break when the external tension is large, which cannot provide enough strength for soil reinforcement and slope protection, which is easy to cause The slope is not firm

In addition, the three-dimensional plastic mesh is also made of polypropylene or polyethylene, and its aging resistance is poor. After a long time, the strength will decrease significantly, which will reduce the strength of the slope protection body.

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