| 摘要 |
PROBLEM TO BE SOLVED: To obtain an aseismatic construction method for a manhole connection part of an existing pipe for providing aseismic capacity without damaging buried structures such as an underground cable and a buried pipe for various fluids present near the circumferential wall of the manhole and without affecting the strength of the manhole. SOLUTION: The aseismatic construction method for the manhole connection part of the existing pipe provides the manhole connection part 6 of the existing pipe, where the existing pipe 2 is fitted in the pipe hole 5 of the circumferential wall 4 of the manhole 3, with aseismic capacity. The aseismatic construction method includes a process for cutting off the end of the existing pipe 2 fitted in the pipe hole 5 of the circumferential wall 4 of the manhole 3 to a position within a range which does not exceed an outer circumferential wall surface 10 in the vicinity of the outer circumferential wall surface 10 of the circumferential wall 4 from the inner circumferential wall surface 9 side of the circumferential wall 4 of the manhole 3, a process for forming an elastically deformable elastic cut-off tubular part 12 with a thickness approximately equal to the thickness of the existing pipe 2 at the inner wall of a part where the existing pipe 2 is cut off in the pipe hole 5 of the circumferential wall 4 of the manhole 3, and a process for arranging a lining pipe 13 inside the existing pipe 2 and the elastic cut-off tubular part 12. COPYRIGHT: (C)2009,JPO&INPIT
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