①lap joint: lap joint width shold be 15cm; ② hot welding: Suitable for thicker geomembrane weld lap width of the substrate to 5CM. (Recommended bonding, soak the glue in water, poor seepage-proof effect.) digging the base into protective layer of mortar in the bottom of the lake(H20-30mm), slope cutting, dense and smooth composite geomembrane and vertical bulkhead, smooth pasted base surface, clear, step transfer of water pipe mouth sealed with sealing geomembrane laying welding and repair welding procedure handover quality acceptance, completion and acceptance of a high-level design: About 0.6m 2, waterproof construction total area is about 800㎡ 3,ceramsite brick built bulkhead, 4, collapse pit set by water
