The welding construction must be synchronized with the geomembrane one after another. The slope geomembrane is laied from up to down in a whole and cannot be splited joint. The upper left shoulder slope and anchorage capacity, and the lower end to the bottom of the pit left head slope root distance of not less than 1.8m, membrane end alignment with hot wedge welder connection. The slope shoulder is welded with extrusion welding. The seam should try to avoid the corner groove in the corner, and try to minimize the irregular shape. If it can not avoid the corner ditch, you must use a squeeze welding machine welding seam. In the crossed welded seams, it must be used to weld the welding machine welding. The length of welding shall not less than 20cm. Before welding, the welding seam should be trimmed to the exposed welding seam, and then the welding machine can be used to fill up the welding machine with the hand wheel.
According to standards, the geomembrane can be divided into three standard, national standards, national standards II, American Standard (that is urban construction standards). The manufacturers generally use the calendering process is to produce the GB, but the transverse strength is difficult to achieve. Now some big manufacturers began to use the three layer membrane-blowing film equipment. This process can fully compensate for the defects of the calendering process, and it can be a perfect production abroad standard type A, type 2 GB, American Standard, the three standard, full compliance.
