PIPE LINE INTERNAL PERIMETER SURFACE BACKING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a shortening method in hardening process time in a pipe line internal perimeter surface backing method lining internal perimeter surface of pipe line buried in the underground with a backing material impregnating hardening resin.;SOLUTION: A pipe line internal perimeter surface backing method lining internal perimeter surface of pipe line 20 buried in the underground with a backing material 11 impregnating hardening resin includes a hardening step hardening the hardening resin impregnated in the backing material 11 while pressing the backing material 11 for the internal perimeter surface of the pipe line 20, and a temperature monitoring step monitoring temperature of the backing material 11. In the temperature monitoring step, the hardening step is terminated after identifying that the temperature of the backing material 11 turns downward from rising.;SELECTED DRAWING: Figure 6;COPYRIGHT: (C)2019,JPO&INPIT