Lateral pipe-lining method and flange-pressing implement for lateral pipe-lining material used in the method

摘要

A lateral pipe (31) that intersects a main pipe (30) is lined using a lateral pipe-lining material (1) having a tubular resin-absorbing material (2) impregnated with a curable resin and having a flange (3) formed at one end thereof. The flange of the lateral pipe-lining material is disposed on an expandable flange-pressing implement (70), and an adhesive (82) is applied onto the flange (3). Hot water is fed to the flange-pressing implement (70) to expand and press the flange (3) against the periphery of the lateral pipe opening of the main pipe (30). The hot water thus fed also heats and cures the adhesive (82) on the flange to secure it to the periphery of the lateral pipe opening of the main pipe (30). The drainage performance of the main pipe (30) can be improved because a gap does not form between the flange of the lateral pipe-lining material and the periphery of the lateral pipe opening of the main pipe, and neither underground water nor earth or sand flows into the main pipe.