Single Perforated Corrugated Pipe

 Single Perforated Corrugated Pipe

Structural Features:

• Perforations are only on the upper or lower half of the pipe (typically round or slotted holes).

• Standard hole spacing (e.g., 50mm intervals), hole diameter 6-12mm.

Key Functions:
✅ Directional Drainage:

• Holes facing upward: Collect surface seepage (e.g., subgrade drainage).

• Holes facing downward: Drain accumulated water from base layers (e.g., retaining wall drainage).
  ✅ Anti-Clogging Design:

• Single-side perforations reduce sediment intrusion risk (compared to fully perforated pipes).

Typical Applications:

• Longitudinal drainage trenches for roads/railways

• Perimeter drainage systems for building basements

• Subsurface drainage in landscaping/greenery zones

International Standards:

• ASTM F405 (Polyethylene corrugated pipe)

• EN 13476-3 (Structured wall drainage pipes)