For large-area geotextiles, double-seam welding machine is mainly used for welding, and some parts must be repaired and reinforced by extrusion welding machine. Geomembrane is qualified if it is laid strictly according to the requirements on the slope and plane joints
Check that the bottom surface of the joint is smooth and firm. If there are foreign bodies, they should be properly disposed of in advance. Check whether the overlap width of the weld is appropriate, and the geomembrane at the joint should be flat and moderately tight. Use a hot air gun to weigh the weight of the two geomembranes Stack Parts are bonded together. The distance between connection points should not exceed 80 mm。 Control the temperature of the hot air without destroying the geomembrane.
Geomembrane basically has no horizontal direction in slope welding. How can it be considered qualified? The laying of geomembrane at the slope and plane joint strictly follows the requirements, that is, it is qualified. The geomembrane of the bottom anti-seepage system is laid with bentonite waterproof blanket, and the capping geomembrane anti-seepage system is directly placed in the soil of industrial waste residue. Before laying the geomembrane, the basement should be comprehensively inspected, and the foundation should be solid and flat, with a vertical depth of 25mm without roots. Organic soil, stone, concrete blocks and steel bars may affect the construction fragments of geomembrane.
Tensile deformation caused by temperature change should be considered when laying geomembrane. Due to the low strength of the coating at the weld, the width of the overlap joint between the coating and the coating should not be less than 15 cm。 Under normal circumstances, the joint layout direction should be arranged along the slope direction.
The above is the specific instruction about geomembrane in strict accordance with the requirements for slope and plane joints.
Post time: May-13-2025
