| 摘要 |
PROBLEM TO BE SOLVED: To improve reinforcement and cut-off effect of an existing pipeline by covering the outer periphery of a sheetlike base which is cylindrically wound and held in an expansion state with a sheet impregnated with hardening resin and watertightly joining the interval between the edge part of the sheet and the inner periphery of the pipeline by a partition member. SOLUTION: A covering body 10 for repair is fitted to an expanding machine 50 by inserting an expansion part 52 into the inside of the base part 23 of the covering body 10 for repair in a state in which the expansion part 52 is shrunk. Then, the expansion part 52 is expanded by compressed air and the covering body 10 for repair is pressed in contact with the base part 23 to fix the covering body 10 for repair to the expanding machine 50. The covering body 10 for repair is maintained in the state. Then, both the covering body 10 for repair and the expanding machine 50 are moved to a repair part and the expansion part 52 is furthermore expanded by compressed air to expand the base part 23 of the covering body 10 for repair. The sheet 30 impregnated with hardening resin and partition members 40 inserted on the sheet 30 are pressed on the inner peripheral face 1a of a pipeline 1 by the base part 23. |
