METHOD OF REGENERATING AND REPAIRING EXISTING PIPE LINE

摘要

PROBLEM TO BE SOLVED: To provide a method of regenerating and repairing existing pipe line capable of preventing from making lining work impracticable in a branched supply pipe in the case of treating the branched supply pipe including a bend pipe. SOLUTION: In the method of regenerating and repairing existing pipe line for regenerating and repairing a pipe line including the branched pipe 2 branched from a main pipe 1 buried under a road and having a bend part by resin lining, lining pigs 3 ranging on a supporting member 3A having a larger axis line radius than the radius of curvature of the bend part 2A in the bend pipe is prepared and the lining pig is prevented from moving to the main pipe 1 from the branched position by being caught by the bend part 2 of the bend pipe.