How to lay the geomembrane better?

Release time:

2024-09-03

When laying geomembranes, attention should be paid to ensuring the accurate and flat position of the geomembrane; controlling the welding quality; properly handling the corners; and setting up a waterproof layer to ensure the construction quality and performance of the geomembrane.

When laying geomembranes, the following points should be noted to ensure the construction quality and performance of geomembranes:

‌ 1.Ensure that the position of the geomembrane is accurate and flat, and avoid distortion, wrinkles and other phenomena. During the laying process, it should be smooth and solid, and wrinkles should be minimized to ensure the effectiveness and aesthetics of the geomembrane.

‌ 2.Control the welding quality and ensure that there are no leaks or false welds during the welding process. At the same time, the welding temperature and speed should be controlled to avoid damage to the geomembrane. The welding form generally adopts double weld overlap, and extrusion welding is only used in repairs and in places where welding equipment cannot reach.

3.Properly handle the corners to avoid hollowing, warping and other phenomena. The corners can be treated by burying pipes, anchoring and other methods.

‌4.Set up a waterproof layer to prevent water penetration from affecting the geomembrane. It can be set up with waterproof coatings, waterproof rolls and other materials.

‌5.Choose a suitable laying direction, minimize the stress on the joints as much as possible, and reasonably arrange the position of each piece of material to minimize the joints. There shall be no transverse joints on the slope with a slope greater than 10% and within 1.5m of the slope foot.

‌6.Ensure the conditions of the construction site, including the flat surface of the foundation of the landfill, no unevenness, no sharp particles, and no various hard debris that may damage the HDPE geomembrane. There shall be no harmful debris within a surface depth of 25mm.

7‌.Carry out quality inspection and acceptance in a timely manner to ensure the quality of the geomembrane and the firmness of the welded joints, and meet the quality requirements of the project.

‌8.Pay attention to construction safety, and pay attention to fire prevention and electric shock prevention when using welding machines and other equipment. During the construction process on the site, the safety regulations of the construction party must be followed, and safety vests, safety belts and safety helmets must be worn as required. Smoking is prohibited in places where biogas is generated.

9‌.Choose the appropriate construction time, and try to choose suitable temperature and dry weather for construction to ensure the continuity of the geomembrane splicing and prevent it from being damaged.

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