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Geotextile, also known as geotextile, is a permeable geosynthetic material made of synthetic fibers through needle punching or weaving. It has many uses and functions. Let me introduce it to you.
1. The use of geotextiles
Widely used in geotechnical engineering such as water conservancy, electric power, mine, road and railway, including:
(1) Filter material for soil layer separation.
(2) Drainage materials for reservoirs and mine beneficiation, and drainage materials for high-rise building foundations.
(3) Anti-scouring materials for river embankments and slope protection.
(4) Reinforcement materials for roadbeds of railways, highways, and airport runways, and reinforcement materials for road construction in swampy areas.
(5) Anti-frost and anti-freeze insulation materials.
(6) Anti-cracking material for asphalt pavement.
2. The role of geotextiles
(1) Isolation: Polyester staple fiber needle-punched geotextiles are used to isolate building materials (such as soil and sand, soil and concrete, etc.) with different physical properties (particle size, distribution, consistency and density, etc.). Keep two or more materials from being lost or mixed, maintain the overall structure and function of the material, and strengthen the load-bearing capacity of the structure.
(2) Filtration (reverse filtration): When water flows from the fine material soil layer into the coarse material soil layer, the good air permeability and water permeability of the polyester staple fiber needle-punched geotextile are used to allow the water to pass through and effectively intercept the soil particles. Fine sand, small stones, etc., to maintain the stability of water and soil engineering.
(3) Drainage: Polyester staple fiber needle-punched geotextile has good water conductivity, it can form a drainage channel inside the soil, and discharge excess liquid and gas in the soil structure.
(4) Reinforcement: Use polyester staple fiber needle-punched geotextiles to enhance the tensile strength and deformation resistance of the soil, enhance the stability of the building structure, and improve the quality of the soil.
(5) Protection: When the water flow scours the soil, it can effectively diffuse, transmit or decompose the concentrated stress, prevent the soil from being damaged by external forces, and protect the soil.
(6) Anti-puncture: combined with geomembrane to form a composite waterproof and anti-seepage material, which plays the role of anti-puncture.
