How is the composite geomembrane lapped?

How to join the overlapping edges of the composite geomembrane two fabrics and one membrane? The joint problem is common in the construction of composite geomembrane. The solution of composite geomembrane joint is an important part of the project construction, which directly endangers the service life of the project operation. According to the quality inspection, the choice of thermal welding is ideal. The thermal welding method is to heat and melt the geomembrane and the surface to melt the surface, and then synthesize it according to the working pressure. It is good to lay small particles of sand or clay on the surface of the composite membrane as a safety protection layer. Both sides of the geomembrane are embedded with a certain membrane layer and a non-adhesive layer.
After the composite geomembrane is laid, it must be compacted with sandbags to prevent wind blowing. There must be no waste, water, dust, etc. on the edge of the joint. Before welding, the two sides of the single-layer film at the joint should be adjusted so that the steel rod overlaps within a certain width of the optical fiber, so that the steel rod is flat and wrinkle-free. When welding, professional technicians with certain welding work experience are preferred, and special welding machines are used for welding. Adjust the temperature and speed, (can also be glued). In strict accordance with the engineering construction technical standards, several quality control tasks such as preparation, laying, splicing, testing and backfilling shall be done.