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Pingbian landfill, the total laying area of geomembrane at this site is 20,000 square meters. The thickness of the geomembrane used is 2.0mm, with length and width of 50 meters × 6 meters. The geotextile used is 400g filament geotextile. The total time from excavation to construction for the entire site is about 4 months, of which the total time for geomembrane laying is 25 days. Personnel configuration: 2 welding technical personnel, 8 auxiliary construction personnel. The machinery and equipment used are 2 climbing welding machines, 1 extrusion welding machine, 2 hot air guns, 1 rope ladder, and one 5000W power generation equipment.
In addition to the hard technical requirements, the construction of landfills also has relatively large requirements for management. The allocation of personnel work positions, the use of auxiliary tools for membrane material laying, etc., these are all links that affect work progress. Good management allows 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. Among them, the more complex one is actually not welding, but membrane material laying. Because when we are welding, if the laying lap is in place and its edge wrinkles are synchronized, welding can be said to be relatively easy.
The membrane material laying of landfills is usually divided into several stages. After the first stage of laying is completed, garbage backfilling can begin. When a certain section is filled with garbage or filled to a certain height, it is necessary to cover the garbage to prevent rainwater from entering. To put it plainly, backfill a layer of garbage and cover it with a layer of geomembrane. Of course, the depth of backfilling is determined according to different site conditions.
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