| 摘要 |
PROBLEM TO BE SOLVED: To provide an earthquake-resisting construction method for a manhole connecting section of an existing pipe, which has proper workability, and which can impart sufficient strength to an alternative leading end portion of the existing pipe constituted in a leading end-removed portion of the existing pipe. SOLUTION: The leading end portion of the existing pipe 2 fitted into a pipe hole 5 is cut off to a position within a range which does not go beyond an outer peripheral wall surface of a peripheral wall 4, near the outer peripheral wall surface; and a steel pipe 17 is inserted in a diameter-reduced state into a flexible tubular lining material 15 impregnated with an unhardened hardening resin. The tubular lining material, into which the steel pipe 17 is inserted, is inserted through the pipe hole 5, and disposed in the pipe hole 5 by having an end thereof inserted into the leading end of the existing pipe 2; a diameter of the steel pipe 17 inserted into the tubular lining material 15 is enlarged to expand the tubular lining material 15 in a cylindrical shape; and an end thereof is brought into pressure contact with an inner peripheral surface of the leading end of the existing pipe 2, so as to harden the tubular lining material 15. An elastically-deformable elastic cut-off pipe-like portion 20 is provided between an outer periphery of the tubular lining material 15 and an inner peripheral surface of the pipe hole 5. COPYRIGHT: (C)2011,JPO&INPIT
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