Within the range of the first: the process first week dam geomembrane taken while digging, side shop, while tamping, while retaining the zone circulating jobs. Second: the base surface cleaning base surface must be in accordance with design requirements cleaned up, which is critical to ensure that the latest anti-seepage effect Geomembrane, especially sharp stones, roots and other debris to be thoroughly cleaned, the base surface is not allow local bump phenomenon, the cleaned substrate surface or use a ram plate tamper rammer tight, making it dense and smooth. Third: geomembrane laying laying, must while laying the upper and lower. Between the film and the film and the film and the substrate surface to flatten snapping, but not the film is stretched too tight custom Geomembrane, generally slightly loose a little, but you can not leave bubbles in the film at the end. Because before geomembrane relatively thin and very light, later laid, not laid in the protective layer can easily be moved with the wind, so the area should not be a laying of large, the best side to side laying protective layer of soil cover material. Provide information, according to the manufacturer of composite geomembrane width 1.0 ~ 1.9m, 1.9m width of the projects selected to reduce the joint use of materials. Fitting hot sticky, adhesive, lap and other methods, the project design uses adhesive seam width 50mm. If it is found geomembrane puncture or tear the place, be sure to use three times the area of ??subsidies damaged geomembrane good adhesive. The protective layer and surface protection, by 10cm thick protective layer of geomembrane material must be sieved soil, does not allow more than the particle size greater than 6mm impermeable geomembrane manufacturers, geomembrane or easily punctured. The protective layer of soil material must use the pounding dense, ensure the dry bulk density of 1.5 or more, and sampling and testing at any time. The protective layer and backfill stone masonry retaining surface, be sure to light up Geomembrane avoid crashed geomembrane. Try no welds. The specific requirements of HDPE geomembrane HDPE impermeable membrane welding longitudinal seams: the uphill sections of the downhill section in the next, and there is enough overlap length ≥15cm, slope HDPE impermeable membrane must be in the film library at the end laying impermeable membrane GCL area after acceptance of laying artificial certain direction, the "push shop" impermeable membrane laying of slope with sand bags will be positive and timely, film direction exhibition should take together is substantially parallel to The maximum slope line. Squeeze the impermeable membrane to prevent the wind pulling. HDPE impermeable membrane welding preparation: experimental welding requirements: 1, the test of the weld is a production of welding the same surface and environmental conditions. 2, welding equipment and welding personnel only after the successful completion of the pilot welding, to the next step of production of welding. 3, seams without oil, dust, surface HDPE geomembrane lap segment should not contain sediment and other debris, it is necessary to clean up before welding when debris. 4, experimental welding on HDPE impermeable membrane samples to test and adjust the welding equipment. 5, experimental welding frequency control: according to the ambient temperature changes, every day, at least twice, once before the formal job, once in the Edison Group (FIG) | Best Geomembrane | Anti Neijiang seepage geomembrane material provided by the new Edison Company. Edison New Materials Co., Ltd. (www.fangshenmo.com) in Shandong Lingxian west industrial area. Scraps and development in the wave of market economy, the current Edison new material has a high profile in the site construction materials, and enjoys a good reputation. Edison new materials made of the whole network business alliance certification, marking our service and management level has reached a new height. Edison new material all the staff willing to work with insight and common development for a better future.