| 摘要 |
PROBLEM TO BE SOLVED: To provide an earthquake-proof structure of a buried pipe for preventing breakage of the pipe buried into the ground, in particular, a pipeline in the vicinity of a place restrained by a fixed constructed structure due to earthquake and preventing occurrence of functional disorder. SOLUTION: This earthquake-proof structure of the buried pipe is constituted in such a way that the pipe buried into the ground constituted by providing an anti-corrosive internal pipe on an inner side of a rigid external pipe is provided with an integrated structure constituted by providing a cavity between an internal wall of the external pipe and an external wall of the internal pipe and filling and sealing soft elastic filler into a cavity corresponding to a section where the pipe buried into the ground is restrained by the underground fixed constructed structure and a section including a position in its vicinity, the anti-corrosive internal pipes connected by a flexible annular connection member are introduced into an inner side of the rigid buried pipe restrained by the underground fixed constructed structure by leaving a cavity on their outer sides, then a first annular sealing member for sealing the cavity is mounted in a cavity up to a position deviated further from an outer side face position of the constructed structure and a second annular sealing member being similar to it is mounted in a cavity at an inner side face position of the constructed structure, and a liquid-like raw material for generating the soft elastic filler is poured and filled into a cavity between the first annular sealing member and the second annular sealing member and is integrally solidified and elasticized for manufacture. COPYRIGHT: (C)2007,JPO&INPIT
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