HCMP tolerances

Pipes corrugated culvertHCMP length tolerance ±0.5% of design length.

In coupling band junctions, gap between individual pipe sections may not exceed 30 mm.

HCMP tolerances
Item U.M. Allowed values
Nominal size deviation Nominal size % ±1,5
Bore distortion as laid actual bore % ±2,0

 

HCMP/P tolerances
Item U.M. Allowed values
68h13 (D1) reference span / height deviation Nominal equivalent size % ±2,0
125h26 (D1) reference span / height deviation Nominal equivalent size % ±5,0
Internal span/height distortion as laid Actual span % ±2,0