Segment for rehabilitating an existing pipe and a rehabilitating pipe assembled using segments

摘要

A segment comprises an inner plate having an inner circumferential surface that is planar or curved at a prescribed curvature, two side plates provided upright on each side edge of the inner plate, and two end plates provided upright on each end edge of the inner plate. The inner plate and the side and end plates are integrally formed of plastic and an outer circumferential part facing the existing pipe or the inner circumferential surface of the inner plate or both thereof is covered by a rehabilitating plate made of a resin sheet. The segments are coupled in the circumferential direction and in the pipe longitudinal direction and a filler material is poured into each segment to constitute a rehabilitating pipe. The segments provided with the rigid resin sheets thereon make the rehabilitating pipe strongly resistant to external shock and corrosion. The rehabilitating pipe thus functions not merely as a repairing pipe, but rather also as a self supporting pipe.