Geomembrane and geotextile have good mechanical, hydraulic and corrosion resistance
Geomembrane and geotextile have good mechanical, hydraulic, and anti-corrosion properties. The high quality textured geomembrane plays a waterproof role, that is, to prevent the expansion and deformation of the dike core expansive soil caused by external water intrusion, and prevent the dike core from losing water and the shrinkage of the dike core expansive soil to cause disease; the polyester nonwoven geotextile factory price mainly plays a role of drainage, that is, the local foundation When the capillary water rises to the bottom of the geotextile, the water can be discharged in the horizontal direction without clogging, forming a horizontal drainage layer.
Before laying, trim the lower support layer and manually remove hard protrusions such as broken surfaces and stones.
Lay the geotextile along the cross-sectional direction, and manually flatten the geotextile to make the geotextile smooth and moderately elastic. Use 10 cm long geotextile bamboo sticks to fix the four corners of the polyester nonwoven geotextile for sale. The geotextile is folded back 1 meter at the side slope, and the remaining part is wrapped along the trimmed side slope after filling, and fixed at a distance of 20 cm from the edge of the roadbed with a bamboo stick. Two adjacent geotextiles overlap by 30 cm. When overlapping, the high-end geotextile is placed on the surface of the low-end geotextile to prevent the geotextile from folding.
Before welding, wipe the lap surface of the high quality LDPE geomembrane seam clean without dust, oil and water droplets; preheat the welder for about 5 minutes to start welding, insert the welder between the upper and lower membranes, and perform welding in the reverse direction. At the same time, the welded parts are pressed tightly with a pressing roller, and the welding speed is 0.8~1.0m/min. The overlapping width of the two layers of geomembrane is about 5 cm, placed in the upper left and lower right corners.
Strict quality control of welded high quality environmental geomembrane is the key to testing the anti-seepage effect. Organize relevant technical personnel to conduct weld inspection and acceptance, and proceed to the next process after passing the inspection; otherwise, mark the missing weld joints with a colored pen and repair the welding in time until the design and construction requirements are met.
The anchoring of the geomembrane is related to the formation of a closed impermeable body. wholesale polyester nonwoven geotextile anchoring can only be carried out after the inspection and approval of the supervisor and before the construction of the steel wire cage. Anchor the geomembrane on the water-facing side of the concrete toe-protecting wall of the swimming pool, then spread the geomembrane flat, fill with 20 cm of gravel material, and then perform gabion construction on the geomembrane. The length of the geomembrane outside the gabion is about 3~4m, and it is welded with the wholesale HDPE geomembrane laid on the bottom of the artificial lake. The connection between the upstream geomembrane of the rubber dam and the concrete apron is also anchored, and its structure is the same as that of the geomembrane and the concrete toe wall.