Compared with the geomembrane, what are the differences between the GCL and the geomembrane?

The unique function of GCL is different from geomembrane:

       1. Under the geomembrane of the primary lining of the landfill; 2. Under the geomembrane of the secondary lining of the landfill; 3. Under the geomembrane of the landfill and on the clay layer, that is, three Liner of various components; 4. under the geomembrane of the landfill cover layer; 5. adjacent to the geomembrane in the vertical cutoff wall; 6. placed on the geomembrane to prevent the coarse particles from putting the geomembrane Puncture; 7, used as the second layer of underground water storage lining.