CONSTRUCTION METHOD FOR REPAIRING TUNNEL STRUCTURE, AND TUNNEL STRUCTURE

摘要

PROBLEM TO BE SOLVED: To restore watertightness of a tunnel structure by discharging a repairing material from a repairing-material injection pipe, when the tunnel structure causes water leakage.;SOLUTION: In the repair of the tunnel structure 1 which is equipped with shotcrete 3 and lining concrete 4 and 6, the prepared repair-material injection pipe 2, which has a repairing-material discharge part 2e to be ruptured by pressure of injection of the repairing material, is pre-embedded in at least one of the inside of the shotcrete 3, the inside of the lining concrete 4 and 6, and a place between the shotcrete 3 and the lining concrete 4 and 6; the tunnel structure 1 is constructed; when a less watertight place 12 appears in the tunnel structure 1, the repairing material is injected into the injection pipe 2; the discharge part 2e is ruptured; the repairing material is discharged from the injection pipe 2; and the place 12 is repaired.;COPYRIGHT: (C)2003,JPO