Hard Permeable Pipe, also called plastic blind ditch pipe, drainage collector pipe, corrugated drainage pipe, or curved mesh permeable pipe, is a high-efficiency underground drainage material designed for long-term water collection and discharge projects. The pipe body is usually manufactured from high-density polyethylene (HDPE) or PVC material with excellent corrosion resistance, aging resistance, and compressive strength.
Unlike ordinary drainage pipes, the upper 2/3 section of the Hard Permeable Pipe is designed with uniform permeable holes, while the lower 1/3 remains solid without perforation. This unique structure allows groundwater to enter rapidly from the upper side while preventing secondary leakage at the bottom, significantly improving drainage efficiency and protecting soil stability.
This type of Flexible Permeable Pipe is widely used in railway engineering, highway subgrade drainage, airport runway projects, retaining walls, tunnel waterproof systems, golf courses, sports fields, landfill leachate collection systems, landscaping projects, and slope protection engineering. Due to its lightweight structure and high water flow rate, it has gradually replaced traditional gravel blind drains and concrete drainage systems in modern civil engineering.
The corrugated structure provides superior ring stiffness and impact resistance, allowing the pipe to maintain stable drainage performance even under heavy soil pressure and complex geological conditions. The excellent permeability and anti-clogging capability make it particularly suitable for soft soil foundations, mountainous areas, and high groundwater environments.
| Model | Inner Diameter mm | Outer Diameter mm | Ring Stiffness KN/m² | Opening Area % | Water Flow Capacity L/min | Length m |
|---|---|---|---|---|---|---|
| HPP50 | 50 | 65 | 8 | 18 | 120 | 50 |
| HPP80 | 80 | 98 | 10 | 20 | 240 | 50 |
| HPP100 | 100 | 120 | 12 | 22 | 360 | 50 |
| HPP150 | 150 | 175 | 16 | 24 | 650 | 30 |
| HPP200 | 200 | 230 | 18 | 25 | 980 | 20 |
| HPP250 | 250 | 285 | 20 | 26 | 1320 | 20 |
| Item | Test Standard | Result |
|---|---|---|
| Tensile Strength | ASTM D638 | ≥18MPa |
| Elongation At Break | ASTM D638 | ≥350% |
| Compression Resistance | ASTM D2412 | Excellent |
| Low Temperature Resistance | -20℃ | No Cracking |
| Chemical Resistance | Acid Alkali Salt | Excellent |
| UV Resistance | ASTM G154 | Qualified |
| Impact Strength | ASTM D2444 | High |
| Water Permeability | GB/T Standard | Excellent |



Hard Permeable Pipe is extensively used in modern civil engineering and infrastructure drainage systems.
Hard Permeable Pipe has a special perforated upper structure and solid lower structure, which improves groundwater collection efficiency while preventing secondary leakage and soil erosion.
Yes. HDPE Hard Permeable Pipe has excellent chemical resistance and is widely used in landfill leachate collection and environmental protection projects.
Common sizes include 50mm, 80mm, 100mm, 150mm, 200mm, and 300mm. Customized diameters are also available.
Yes. The corrugated reinforced structure provides excellent ring stiffness and compression resistance suitable for deep burial applications.
Under normal engineering conditions, the service life can exceed 50 years due to the anti-aging and corrosion-resistant properties of HDPE and PVC materials.