How can geotextile builders be matched to achieve good results? At the construction site of laying geotextiles, the allocation of relevant personnel should not be blind, the deployment of construction personnel should be arranged scientifically, and the construction quality inspection should be carried out in strict accordance with the inspection requirements.
construction site inspection requirements for construction personnel geotextiles
1. When laying flowing water, the upstream cloth block at the lap joint should be covered with the downstream cloth block.
2. Slope laying should generally be carried out from the bottom up, the geotextile should be buried in the anchor ditch at the top of the slope and the foot of the slope, the trench depth should not be less than 30cm at the foot of the bank slope, in order to prevent scouring, the geotextile should be unfolded and folded back to make a pressure sleeper, and the pressure pillow should reach below the scouring line.
3. Geotextile laying workers should wear soft-soled shoes to avoid damaging the fabric.
4. After the fabric is laid, it should be avoided from direct sunlight, fill the store or take protective measures.
5. There should be no gaps at the connection between the geotextile and the bank slope structure, and the combination is good.
6. The design and construction unit shall submit all the required technical documents to the acceptance team.
7. On-site visual inspection and acceptance of the appearance quality of the project.
8. Randomly check the quality of joints or splicing points.
9. The acceptance conclusion should be "qualified" or "unqualified", and the main basis for the conclusion should be indicated.
Geotextile laying method in alpine areas
1. The geotextile is best installed mechanically, or manually laid, when laying, attention should be paid to make the rough and burnt side up, and then fix one end with a retainer, use machinery or manpower to tighten, and lay close to the road surface.
2. The transverse lap of the geotextile is about 4 ~ 5 cm, according to the paving direction, the rear end is pressed under the front end, glued with hot asphalt or emulsified asphalt, and fixed with a retainer; When the width of the lap is widened, the interlayer at the lap joint becomes thicker, and the bonding force between the surface layer and the base layer is weakened, resulting in the surface bulging, separation, displacement and other adverse effects, therefore, the part of the takeover width should be cut off.
3. The geotextile should be laid in a straight line as much as possible, when it is necessary to turn, cut the bend of the fabric, superimpose it, spray it with adhesive oil for bonding, if there are folds in the laying process (fold height 2cm), this part of the fold should be cut off, and then lap it along the laying direction, and use the adhesive layer oil to hand over.
4. When laying geotextiles, when laying gabions on it, an appropriate amount of fine yellow sand should be thrown in time to prevent oil sticking to the wheels when vehicles pass through geotextiles, resulting in the cloth being picked up or damaged.