The composite geomembrane should be wide

Product quality inspection of composite geomembrane materials. Composite geomembrane is a type of double-cloth and one-membrane composite geomembrane. Each performance index has been tested before application, and each index meets the requirements of the standard and design scheme.

The composite geomembrane has corresponding anti-cracking and anti-piercing capabilities, but when the water head is relatively large, the sharp gravel and tree roots under the film will usually crack. During the anti-seepage construction of Wanxiuqiao Reservoir, the dry masonry and sand gravel cushions on the original dam surface were excavated to the clay layer, and the slope was excavated according to the size of the design plan, backfilled and tamped under the slope, leveled and watered, The dry bulk density is not less than 1.65t/resistance. Manually excavate non-slip grooves, clean up surface rocks, tree roots and other solid and sharp objects, and spray herbicides and other drugs. The finished slope should be leveled, compact and smooth to avoid the composite geomembrane being penetrated. After the flatness requirements of the design plan are realized, the engineering inspection and acceptance by the supervision engineer is used as the composite geomembrane paving face.

The geomembrane is pieced together on the spot. In order to facilitate project construction and ensure the quality of patchwork, the composite geomembrane should be as wide as possible to reduce the patchwork amount of the dam slope. Before the construction of the project, the composite geomembrane should be cut in the special field of the warehouse according to the width of the composite geomembrane and the length of the site, pieced together into blocks of the required size, rolled on the steel pipe, and transported to the working surface for paving.

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