Use range
1, Blind ditch of highway subgrade; blind ditch of road surface and blind ditch of central green belt;
2, municipal roadbed blind blindgirl and the central green belt blind ditch;
3, water conservancy project slope protection;
4, landscaping rainwater collection;
5, the tunnel project ditch drainage;
6, the rainwater discharge below the stadium;
7, landfill rainfall collection and discharge;
8, railways, airports, underpass and farmland irrigation and other rainwater discharge.
Precautions
Pipe itself is a plastic material, thermal expansion and contraction coefficient is higher, so it is not easy exposure to the sun, the temperature is too easy to affect its ring stiffness, it is recommended to store in a cool place, and covered with waterproof board or tarpaulin. Use straight or tee and other accessories to connect, in the installation, must be open part of the hole up, and no hole on the bottom. Pipe in the embedding must first shop a layer of seepage proof geotextile, and then backfill with gravel, gravel diameter of not more than 5cm. In the top of the gravel can be laid a layer of filter geotextile, in order to filter sediment, sediment into the tube to prevent clogging. If the crushed stone height is greater than 1.5 times the pipe diameter, you can not filter geotextile.
