When laying geosynthetics , first fill the surface layer of the soil that has been crushed to the specified compaction standard, the distance between the adjacent two layers of geosynthetics is not less than 3.0m, and the longitudinal overlap of the geosynthetics is 0.3m. The geosynthetics must be tightening and fixing when laying, and then filling earth on it.

The composite geomembrane adopts two nonwovens and one membrane (the upper and lower parts are permeable nonwovens, the middle part is waterproof geomembrane ). The composite geomembrane or the corresponding standard composite geomembrane. Its weight is not less than 600g/m2, and the CBR bursting strength is not less than 2.5kN/m

The outstanding advantages of the composite geomembrane are integrating anti seepage and drainage, high tear strength, simple and convenient construction, large friction coefficient and good aging resistance It can solve the problem of subgrade drainage and tumbling mud The composite geomembrane uses plastic film as the anti seepage substrate and composited with nonwovens Its anti seepage performance mainly depends on the plastic film

Slope greening