Geotextile, also known as geotextile, is a kind of permeable geosynthetics which is made of synthetic fiber by needling or weaving. The finished product is cloth like, with a general width of 4-6 meters and a length of 50-100 meters. Geotextiles are divided into woven geotextiles and non-woven geotextiles. Geotextile has excellent filtration, drainage, isolation, reinforcement, seepage prevention, protection, light weight, high tensile strength, good permeability, high temperature resistance, freezing resistance, aging resistance and corrosion resistance.