Home > categories > Construction & Real Estate > Geomembranes > What are the precautions for the construction of the slope area of the cesspit?
Question:

What are the precautions for the construction of the slope area of the cesspit?

nan

Answer:

The construction method of geotextile/geomembrane: 1 flatness: ±2cm/m2, flat and straight; 2 compactness: 95%, after grinding, pave geomembrane on the surface; 3 vertical and horizontal gradient: Longitudinal and transverse slope should be above 2%, boundary and structure of the landfill bottom must be beneficial to diversion of leachate; 4 cleanness: No roots, rubble, gravel, concrete particles, such as sharp edges shall appear within vertical depth of 2.50cm . Climate requirements while paving: 1. Temperature: 5 - 40℃ is appropriate. Taking into account thermal expansion and cold contraction of the geomembrane, according to experience, when the weather is cold, geomembrane pavement should be tight; in hot weather should be loose; but it should be noted that, in summer, high temperature should be avoided at noon. 2 wind and rain: If the wind scale is over force 4 wind or it's raining, the construction should be stopped; When wind is lessened, it is proper to hold down geomembrane with sandbag so as to facilitate construction. Construction and installation of HDPE geomembrane: 1 construction and installation process of HDPE geomembrane. 2 tailor and transportation: According to the records of laying base measurement , cutting large bundle number of geomembrane should be marked and recorded and then carried to construction site according to their number.

Share to: