Rehabilitating pipe segment and existing pipe rehabilitation method using same

摘要

A rehabilitating pipe segment of the invention is comprised of first and second segment halves (3, 4) that are linked together to provide a variable-width segment (2). The first segment half (3) has an internal surface plate (301), a convex plate (302) extending parallel to the internal surface plate, and a side plate (303) extending perpendicular to the internal surface plate. The second segment half (4) has an internal surface plate (401), an internal plate (402) extending parallel thereto and forming a concavity (407), and a side plate (403) extending perpendicular to the internal surface plate. The convex plate (302) and a braking rubber (5) are fitted into the concavity (407) so as to link the first and second segment halves (3, 4) together to provide the variable-width segment (2). When tension of a specified amount or greater acts on the variable-width segment, the first and second segment halves (3, 4) move relative to each other in the pipe length direction against the braking force of the braking rubber (5). The rehabilitating pipe segment is used to assemble a rehabilitating pipe (8) having earthquake resistance.