Rehabilitation methods of the existing pipe culverts, and the jig, etc.

摘要

PROBLEM TO BE SOLVED: To provide a reclamation method of an existing pipe conduit capable of accurately and quickly forming a bore hole to be communicated with a main pipe in a connecting part of the main pipe and an installation pipe.;SOLUTION: In a magnet arranging process, in the connecting part 5 of the main pipe 1 and the installation pipe 2, a waiting side magnet piece 8 is arranged in a position being the center of the installation pipe 2. In a repairing process, a reclamation material 6 is arranged over the whole periphery of its inner peripheral surface for repairing the main pipe 1. In a magnet attracting process, a probing side magnet piece 9 is attracted via the reclamation material 6 to a position corresponding to the connecting part 5 of the installation pipe 2 blocked by the reclamation material 6 by using magnetic force of the waiting side magnet piece 8. In a hole boring process, the bore hole is formed in the reclamation material 6 in a state of adjusting its probing side magnet piece 9 to a central position with the probing side magnet piece 9 as a mark.;COPYRIGHT: (C)2008,JPO&INPIT