PROBLEM TO BE SOLVED: To provide a pipe line regeneration engineering method and a liner for regenerating a pipe line by which the reinforcement (lining) of an existing superannuated pipe line such as a city water pipe, a sewage pipe and a gas conduit which are mainly berried underground can be carried out in a short time.;SOLUTION: The liner 1 for regenerating the pipe line where a fluid supply/discharge joint 20 which is attachable and detachable to/from at least either of both ends is inserted in a sewage pipe (existing pipe) 100, and a heating pressurization process or the like is performed.;COPYRIGHT: (C)2012,JPO&INPIT
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