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Pingbian landfill, the total area of geomembrane laying at this construction site is 20,000 square meters. The thickness of the geomembrane used is 2.0mm, the length and width are 50 meters × 6 meters, and the geotextile used is 400g filament geotextile. The total time from excavation to construction of the entire construction site is about 4 months, of which the total time for laying the geomembrane is 25 days. The staff configuration is 2 welding technicians and 8 auxiliary construction personnel. The machines and equipment used are 2 climbing welding machines, 1 extrusion welding machine, 2 hot air guns, 1 rope ladder, and 1 5000W power generation equipment.
In addition to the rigid technical requirements, the construction of the landfill has greater requirements for management, such as the allocation of personnel work positions, the use of auxiliary tools for laying membrane materials, etc. These are all links that affect the progress of the work. Good management can allow construction personnel to have their own division of labor. The entire work process is the three major processes of membrane material handling, membrane material laying, and welding. The more complicated one is not welding, but the laying of membrane materials. Because when we are welding, if the laying overlaps in place and the edge folds are synchronized, it can be said that welding is relatively easy.
The laying of membrane materials in landfills is usually divided into several stages. After the first stage of laying is completed, the garbage can be backfilled. When the garbage fills a certain section or reaches a certain height, it is necessary to cover the garbage to prevent rainwater from entering. To put it more clearly, a layer of geomembrane is covered for each layer of garbage backfilled. Of course, the depth of backfilling is determined according to different on-site conditions.
