Page 344 - Trenchless Technology Piping Installation and Inspection

Monetary
Repair
Accepted Tolerance Penalties Repair Types Requirements No deduction, Removal of wrinkles Repair if exceeding Generally assuming adequate (fins) and coat area 5 percent of 5 percent of thickness is with approved epoxy nominal diameter nominal diameter achieved. material. Trim to of existing pip

Probable Cause Undersized or deteriorated localized section of existing pipe. The corrugated pipe may have been measured incorrectly at the inside diameter or high point of the corrugations, rather than the center of the corrugations.

Defects Wrinkles/fins/ folds (LW)/(LF)

300