The characteristics of polyester non-woven fabrics and the introduction of 5 major functional principles

1. Reinforcement. 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, increasing 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 weak foundations, 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.
2. Isolation. Geotextile can separate different soil structures to form a stable interface, separate each layer of structure, and play its own characteristics and overall functions according to requirements. It is mainly used for isolation between railway ballast and subgrade, subgrade and soft foundation The isolation between the roads, railways, airports, parking lots, etc. and the isolation layer between the foundation and foundation. 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.
Three 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 The migration of water in the soil causes dry shrinkage or thermal expansion to alkalize the cultivated land.
Fourth, the filtering effect. Geotextile 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 clay core walls of earth-rock dams or filter layers of clay inclined walls, earth-rock dams or dikes The filter layer of various drainage bodies inside, the filter layer of the dam surface of the ash storage dam or the ore storage dam, the filter layer of the downstream revetment of the sluice, the sea temperature or the lower part of 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.
5. Drainage function. Polyester filament non-woven geotextile can form a drainage channel in the soil, collect the water in the soil, and discharge it along the plane of the material. 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.