The best method is using buried laying. During construction, first of all, level out the base surface with smaller sand or clay, and then pave geomembrane. Don't stretch geomembrane too tightly, both ends embedded in the soil section is corrugated and finally pave a layer of about 10cm transition layer with fine sand or clay on paved geomembrane. Block 20-30cm stone (or concrete precast block) as scour prevention layer. It is better to avoid the stones to hit on geomembrane, and it is better to carry on the construction of the protective layer while pavement of geomembrane.
