SPLIT CONDUIT, METHOD FOR SPLITTING CONDUIT, AND CONDUIT SPLITTING PIPE

摘要

PROBLEM TO BE SOLVED: To split an original conduit, e.g. a city water pipe, buried in the ground into a plurality of large diameter conduits being arranged uniformly in the original conduit, and to carry out the splitting work inexpensively.;SOLUTION: An original conduit 1 is internally provided with a plurality of split through holes 5 having the outside diameter slightly smaller than the inside diameter of the original conduit 1, and a split conduit 4 having a small through hole 6 is inserted around the split through holes 5 to obtain a split conduit. Inner surface of the original conduit 1 is preferably lined.;COPYRIGHT: (C)2005,JPO&NCIPI