Installation and construction of HDPE geomembrane shall be in accordance with the specific site condition and climatic conditions, properly pre-place 2%-5% extension volume; level surface mounting of base, remove the roots, stones and other sharp objects; trim round internal and external corners with its fillet radius equal to or more than 50cm; welding seam surface must be clean; welding seam should adopt displacement installation to avoid cross-wire welding, T-shape installation is available; using the side ditch anchoring landfill or bead seal installation; welding uses double track thermal melting, monorail hot melt, squeezing welding rod welding; seam take junction width is 10cm-15cm.
