HDPE geomembrane laying


HDPE geomembrane laying

1. Before the laying of HDPE geomembrane, the corresponding qualified inspection and acceptance documents for civil works should be obtained.

2. Before cutting the HDPE film, the relevant dimensions should be accurately measured, and then cut according to the actual size. Generally, it should not be cut according to the size shown in the figure. It should be numbered one by one and recorded in detail on the special form.

3. When laying HDPE geomembrane, the stress should be the least, and the raw materials should be saved as much as possible under the premise of ensuring the quality. It is also easy to guarantee quality.


4. The joint width of the joint between the film and the film is generally not less than 10 cm, and the weld alignment direction is usually parallel to the maximum slope, that is, arranged along the slope direction.

5. Usually in corners and deformed areas, the length of the seam should be as short as possible. Except for special requirements, in the range of 1.5 m from the slope or stress concentration area on the slope with slope greater than 1:6, no weld seam is allowed.

6. During the laying of HDPE geomembrane, artificial folds should be avoided. When the temperature is low, it should be tightened and leveled as much as possible.

7. After the HDPE geomembrane is laid, the walking and moving tools on the membrane surface should be minimized. Any objects that can cause damage to the HDPE membrane should not be placed on the membrane or carried on the membrane to avoid the membrane. Cause accidental damage.

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