| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe which can be used as a reusable (repetitively usable) pipe etc. in a forepoling construction method. SOLUTION: The pipe used in the forepoling construction method for installing the pipe in the natural ground from a tunnel cavity and removing the pipe exposed in the tunnel cavity includes: a pipe constituting body 110 wherein a plurality of unit pipes 11A are arranged continuously in the direction along the center G of the pipe in a manner that the end faces of the unit pipes 11A face each other; and a covering body covering the outer peripheral surfaces of the mutually adjacent discrete unit pipes of the pipe constituting body 110 astride the outer peripheral surfaces 11H. The covering body is a heat-shrinkable tube 11J which is arranged astride the outer peripheral surfaces of the mutually adjacent discrete unit pipes of the pipe constituting body and is heated to connect the unit pipes to each other. COPYRIGHT: (C)2011,JPO&INPIT
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