As an anti-seepage material, geomembrane or composite geomembrane has good water impermeability, and can replace clay core wall, anti-seepage inclined wall and anti-silo due to its advantages of lightness, ease of construction, low cost and reliable performance. Geomembrane geomembrane is widely used in hydraulic engineering and geotechnical engineering.
The composite geomembrane is a geotextile attached to one or both sides of the membrane to form a composite geomembrane. Its form has one cloth and one film, two cloths and one film, two films and one cloth, etc.
The geotextile is used as the protective layer of the geomembrane to protect the impermeable layer from damage. In order to reduce ultraviolet radiation and increase anti-aging performance, it is best to use the buried method to lay.
During construction, sand or clay with a smaller diameter should be used to level the base surface, and then lay the geomembrane. The geomembrane should not be stretched too tightly, and the buried soil body at both ends is corrugated, and then a layer of about 10cm transition layer is laid on the geomembrane with fine sand or clay. A 20-30cm block stone (or prefabricated concrete block) is built as an impact protection layer. During construction, try to avoid the stones hitting the geomembrane directly, preferably while laying the membrane while carrying out the construction of the protective layer. The connection between the composite geomembrane and the surrounding structures should be anchored by expansion bolts and steel plate battens, and the connection parts should be painted with emulsified asphalt (thickness 2mm) to prevent leakage.
Post time: Sep-22-2022