What Is a Drainage Pipe?
The drainage pipe is mainly responsible for drainage tasks such as rainwater, sewage, and irrigation and drainage of farmland. Drain pipes are divided into plastic drainage pipes, concrete pipes (CP) and reinforced concrete pipes (RCP).
- 1. Longitudinal and lateral drainage and water permeability of expressways;
- 2. Vertical and horizontal drainage on the back and side trenches of various retaining walls of expressways;
- 3. Drainage of tunnels and underpasses;
- 4. Municipal works, water purification plants, sewage plants, garbage dumps and other water supply and drainage;
- 5. Drainage of resting green areas such as golf courses, sports fields, parks;
- 6. Soil and water conservation for hillside development;
- 7. Underground drainage for site preparation works; [1]
- 1 Press vertically to 40% of the outer diameter, and immediately unload, the sample will not crack and delaminate.
- 2The temperature is 0 , the height is 1M, the impact is 10 times with a weight of 1Kg, and there should be no cracks more than nine times.
- 3. The inner wall is even and smooth, the perforated holes are evenly below 1/2 of the trough height, and the number of holes that are above 1/2 of the trough height is not more than 10% of the total.
- 4. Permeable area 45cm2 / M.
- 5. Vertical shrinkage rate is 3.0%.
- 6, bending degree% 2.
- 7. Ring stiffness 6.3KN / m2 [2]
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