Preparation of composite geomembrane precautions?
Composite geomembrane used to pay attention to matters: 1, the construction staff must wear non-staple or rubber shoes, to prohibit any trampling on the geomembrane. 2, after the film should be timely protective layer construction, to prevent heat shrinkage caused by geomembrane deformation and ultraviolet radiation caused by geomembrane aging. 3, prohibit contact with polyolefins can cause changes in chemical properties, so as not to permanent deformation of geomembrane. 4, the machine must not directly crush the geomembrane surface.
1, laying the ground to be flat, not allowed to have stones, bricks and hard objects, to avoid uneven subsidence, cracks, anti-seepage within the turf, roots have to clear. 2, composite geomembrane laying do not pull too tight, should leave a certain amount of expansion and contraction to adapt to the matrix deformation. 3, composite geomembrane construction can be embedded using embedded: cover thickness should not be less than 30cm, according to different circumstances, can also be used anchor nails fixed. 4, composite geomembrane laying in the filling, should avoid the stones, heavy objects directly hit the composite geomembrane, the best side of the construction, while laying, while covering the protective layer. 5, composite geomembrane lap should avoid the slope, preferably in the flat or embankment at the bottom. 6, composite geomembrane in the laying should avoid dragging, hard pull, to avoid sharp objects stabbed.
(1) the use of buried must be used: cover thickness should not be less than 30cm (2) refurbishment system should be anti-seepage system: cushion, impermeable layer, the transition layer, the protective layer of the composition of the composite geomembrane The (3) soil to be solid, to avoid uneven subsidence, cracks, anti-seepage within the turf, root to clear. And the surface of the membrane with a small particle size of sand or clay as a protective layer. (4) laying the geomembrane do not pull too tight, both ends of the soil into the corrugated part of the soil is better, especially with the rigid material anchoring, should leave a certain amount of expansion and contraction. (5) construction, should avoid the stones, heavy objects directly hit the geomembrane, the best side of the construction, while laying the film, while covering the protective layer. Annangh /
