Stitch bonded fabrics are composed of directional or random fibers and are a new generation of environmentally friendly materials. It is called cloth because of its appearance and certain properties. A web structure is formed and then reinforced by mechanical, thermal bonding or chemical methods.
High-density polyethylene geomembrane (HDPE geomembrane) laying construction steps. Chinese name High-density polyethylene geomembrane lap process. Flatness ±2cm/m2, smooth and straight. Compaction degree 95%. Climate requirement 5-40℃ Cleanliness. No tree roots within the vertical depth of 2.50cm.
The power station consists of a composite geomembrane face rockfill dam, a spillway, a spillway, a diversion tunnel and a water diversion and power generation system.
After the dam body is filled and the reservoir bottom is compacted to meet the design requirements, and the composite geomembrane impermeable body protective layer is prepared according to the design requirements, the construction technology of the composite geomembrane impermeable body is: the composite geomembrane is in place and the paving is straight → Butt joint, bottom fiber butt joint (stitching) → membrane material butt joint, hot melt pressure welding → inflation pressure (or negative pressure method) → surface fiber butt joint (sewing) → reserved capacity.
The welding quality of the composite geomembrane directly affects the anti-seepage characteristics of the composite geomembrane, so the construction of the geomembrane welding is very important. In this project, the welding of composite geomembrane is usually carried out on the spot by the manufacturer sending professional construction technicians.
