Tri-dimension Composite Geonet for Drainage Tri-dimension composite genet for drainage is a new type of geosynthetics,also called 3d Composite Drainage Geonet or Three Dimensional Composite Drainage Net. It’s made of a tri-dimension geonet coated with geotextile on both sides. Network core consists of a tri-dimension thick vertical rib and a rip on top and bottom .The material is same as Grass Reinforcement Mesh. It can drain underground water quickly, also there is a pr…