Since the outbreak of the novel coronavirus pneumonia, two hospitals have been built in Wuhan. Currently, Huoshenshan Hospital has been completed, and up to now, 80% of the construction of Leishenshan Hospital has been finished. The 1,518 prefabricated houses have all started to be assembled and renovated. In terms of wastewater treatment during the construction of Leishenshan Hospital, it is not "temporary" : fully enclosed operation, and after three-level liquid chlorine disinfection, it is pumped into the municipal pipeline network. Under the entire base, HDPE anti-seepage membranes are laid in accordance with landfill standards. The geotextile used by the hospital is 600g/ square meter polypropylene filament geotextile, and the HDPE anti-seepage membrane is 2.0mm double rough surface anti-seepage membrane.

Polyester long-fiber non-woven geotextile has excellent heat resistance and light resistance. Even after short-term exposure to an environment of nearly 20℃, its performance remains almost unchanged. A large number of experiments and practices have proved that polyester long-fiber non-woven geotextiles have long-term corrosion resistance to various natural soils, moisture and microorganisms. It can isolate soil layers composed of different components and properties for a long time and prevent them from mixing.

1. It can play an isolation role; It has frost resistance and meets the load-bearing requirements for construction.

2. It has excellent reverse filtration performance and anti-corrosion performance; Water can permeate in all directions without accumulating pressure. At the same time, it can prevent soil erosion, which is conducive to stability and anti-corrosion performance.

3. It has reliable drainage performance; Due to its fluffy structure, it can effectively control the drainage of the geotechnical engineering surface.

4. It has excellent protective performance; Due to its excellent puncture resistance, extensibility and fluffiness, it can effectively protect the waterproof layer from potential mechanical damage.

5. It has reinforcing properties; The fluffiness and high strength improve the overall stability of the project and enhance its strength.

Rough-surfaced HDPE geomembrane has excellent temperature adaptability, weldability, weather resistance, and good anti-aging, chemical corrosion resistance, environmental stress cracking resistance and puncture resistance. HDPE geomembrane has excellent temperature adaptability, weldability, weather resistance, and good anti-aging, chemical corrosion resistance, environmental stress cracking resistance and puncture resistance. Therefore, it is particularly suitable for use as a leak-proof material in underground engineering, mining engineering, landfill sites, sewage or waste residue treatment plants. Rough-faced HDPE geomembrane is a new type of anti-seepage material. Single rough-faced and double rough-faced HDPE geomembranes increase the friction coefficient and anti-slip function, making them more suitable for steep slopes and vertical anti-seepage, and improving the stability of the project.

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