geocomposite subsoil drain Manufacturers

Composite geomembrane is widely used in irrigation projects and is a new type of anti-permeability material used to treat roadbed diseases. Due to its excellent anti-permeability, excellent frost resistance, convenient structure and low engineering cost, it is expected to be widely used in road disease management in the future.

Everyone knows that impervious geomembrane can also be mixed with asphalt.

Composite geomembrane is a composite impermeable material, woven or non-woven fabric is used as reinforcement material, and polyethylene is used as impermeable material. Most of the materials are one cloth and one film, and two cloth and one film. Laying impermeable membrane procedure: When laying the impermeable membrane, please make sure that there is no gap in the corner. If there are gaps, they should be filled in time during construction, and the laying order should be determined according to the specific conditions of the moisture content of the laying site. If there are pores, the air should be vented at the air bubble, and the anti-permeable membrane at the vent should be cleaned for subsidies.

The purpose of geomembrane is to use its anti-permeability effect. Geomembrane should be impermeable to the molecular structure and manufacturing process. However, due to the unevenness and defects in manufacturing, the commonly used geomembrane must not leak. It's just that it is relatively difficult to permeate and what is more important is whether the geomembrane can maintain its anti-seepage performance under the action of long-term water head when it contacts the actual soil (or other materials). Due to the uneven contact surface, rough soil particles, large local deformation of the soil, etc., the geomembrane may be broken or torn under the action of high water head, and its anti-seepage performance will be lost or weakened. Therefore, corresponding anti-seepage tests are also required.

There are two ways to lay composite geomembrane on the upstream dam surface of the earth dam. The other is laying perpendicular to the dam axis (horizontal laying). There are 7 anti-slip tooth grooves on the upstream slope, and the tooth groove spacing is 5-10m. The bottom of the tooth groove is 1m wide and 0.8m deep. This project adopts the horizontal laying method, and the composite geomembrane must be folded 50cm and stretched at the upper end of the grazing.