1.To isolate the construction materials with different physical properties, so that no loss or mixing between two or more materials, maintain the overall structure and function of materials, so that the structure has a strong load bearing capacity.
2.When water flows from fine soil layer to coarse soil layer, good air permeability and water permeability of needle-punched geotextile are utilized to make water flow pass through and effectively retain soil particles, fine sand and small stones to maintain the stability of water and soil engineering.
3.Needle-punched geotextile is a good water-conducting material, which can form a drainage channel inside the soil to remove excess liquid and gas from the soil structure.
4.Use needle-punched geotextiles to enhance the tensile strength and strain performance of soil, enhance the stability of buildings, and improve the quality of soil mass.
5.Effectively diffuse, transfer or decompose concentrated stress to prevent soil from being damaged by external forces.
6.Needle-punched geotextile is combined with other materials (mainly asphalt or plastic film) to form impervious partition layer in the soil layer (mainly used for highway repaving, repair, etc.)
7.Needle punched geotextiles can be widely used in water conservancy, hydropower, roads, railways, ports, airports, sports venues, tunnels, coastal beaches, reclamation, environmental protection and other fields, playing the role of isolation, filtration, drainage, reinforcement, protection, closure and other functions