Paving first: Considering the decrease of joints and the convenience of construction, select the appropriate width of composite geomembrane with single edge of 10cm spared and neat scrapped edge. The debris on the ground before paving geomembrane shall be clear out, the size of slope cutting site, the flatness and compactness shall be qualified by supervising engineers before pavement. Joint： sweat soldering method is adopted in general.
Some adopt cement nails to fix, some directly pave them on the ground or surface of the structure. Geotextile has a lot of use.
