Features of polyester non-woven fabric

Polyester non-woven fabrics have five major characteristics. It can stabilize and limit the displacement of civil engineering during long-term use, and can transfer or distribute the local stress on the soil to a larger area, and increase the frictional resistance between the soil and the geotextile. Mainly used in engineering construction, such as highways (including temporary roads), railways, embankments, earth-rock dams, airports, sports fields, etc., to strengthen the weak foundation while isolating and filtering. It can also strengthen the stability of the slope of the piled soil or excavated steep slope, and is used for the reinforcement of the backfill of the retaining wall.　　 Isolation. Polyester non-woven fabric can separate different soil structures to form a stable interface, separate each layer structure, and play its own characteristics and overall role as required. It is mainly used for the isolation between railway ballast and subgrade, and the separation between subgrade and subgrade. The isolation between weak foundations and the isolation layer between surface foundations and foundations such as roads, railways, airports, parking lots, etc. In soil-rock mixed dams, it can be used to isolate different dam materials. The earth-rock dam is built on the rock foundation or pebble foundation with developed cracks, which can be used as the isolation between the dam body and the foundation.　　Protective effect. Polyester filament geosynthetic material has protective and anti-scouring effects on soil or water. It is mainly used to produce geotextiles placed on rivers, rivers, lakes, and coastal slopes. It can prevent erosion in water and prevent garbage, waste, and waste. Pollution of groundwater or environment by the diffusion of harmful substances such as liquid; it can prevent water surface evaporation or dust in the air from polluting water surface and road reflection cracks; it can temporarily protect shore or grassland to prevent soil erosion and promote plant growth; prevent surface water from infiltrating underground and The migration of water in the soil causes dry shrinkage or thermal expansion to alkalize the cultivated land.　　 filtration effect. Polyester non-woven fabric allows water to pass through, and can effectively prevent the passage of soil particles, thereby preventing soil loss from causing soil damage. It is mainly used to produce the filter layer of the clay core wall or the clay inclined wall of the earth-rock dam. Or the filter layer of various drainage bodies in the embankment, the filter layer of the dam surface of the ash storage dam or the ore storage dam, the downstream revetment of the sluice, the sea temperature or the filter layer under the slope protection. The filter layer of the drainage system in the backfill of the retaining wall, the filter layer around the drainage concealed pipe or the gravel drainage ditch, the filter layer of the water well, pressure relief well or inclined pipe in the water conservancy project, and the ballast of roads, airports, and railways And the isolation layer of geotextile between artificial rockfill and the foundation.　　 drainage effect. The polyester filament polyester non-woven fabric can form a drainage channel in the soil, collect the water in the soil, and discharge it along the plane of the material. It is mainly used for vertical or horizontal drainage inside earth dams, drainage behind the impervious geomembrane in earth dams or embankments or under the concrete cover, drainage behind retaining walls, and drainage around various buildings. It can also be used to eliminate water seepage around the tunnel and reduce the external water pressure on the lining.