1. Separation
It can isolate building materials of different physical properties (such as soil and sand , soil and concrete…), to keep two or
more materials from being lost or mixed ,maintain the overall structure and function of materials , enhance carrying capacity .
2. Filtration
When water flows from fine soil into coarse soil, good air permeability and water permeability of geotextiles can make water flow
through, and effectively prevent soil particles, fine sand, small stone, etc., so as to keep soil and water engineering stable
3. Drain away water
good water conductivity ,drainage channels can be formed inside the soil to drain excess liquid and gas from soil.
4. Reinforcement
Enhance the tensile strength and deformation resistance of soil , increase the stability of the building structure ,improve soil
quality
5. Defense
When the water flow scour the soil ,it can effectively disperse the water flow force , prevent the soil from being damaged by
external forces ,and protect soil
6. Puncture resistance
Combined with geomembrane , become waterproof and anti-seepage material , play the role of puncture prevention .
7. Good resistant to heat and cold temperature, anti-aging ,anti-corrosion ,