| 摘要 |
PURPOSE:To stick reliably a synthetic resin pipe on the inside of an existing pipe, by a method wherein a lining material constituted of the resin pipe whose form is changed so that a section becomes small and a heat-resistant film tube covering the resin pipe is pulled into the existing pipe while holding the lining at a temperature range of the resin pipe under a softened state, a film tube is pulled out and an expanding jig is pressure-fed within the resin pipe. CONSTITUTION:A lining material 2 is constituted of a resin pipe 3 which is formed of thermoplastic resin and changed its form so that a section becomes small and a heat-resistant film tube 4 covering the resin pipe 3. When the lining material 2 is inserted into an existing pipe 1 through a pulling-out port 10 of a sealing part 8, the resin pipe 3 of the lining material 2 is softened with a temperature of the inside of the existing pipe 1 and the lining material 2 is arranged by running along a form of the existing pipe 1. Then when pressurizing water is fed through a pressurizing water feed port 7 while pulling out the film tube 4 through a pulling out port 10 of the sealing part 8 and an expanding jig 11 is pressure-fed within the lining material 2, a pressing part 3a of the resin pipe 3 which is in a softened state is expanded outside with the pressing force of the expanding jig 11 and the resin pipe 3 can be stuck completely on the inside of the existing pipe 1 without an adhesive agent. |
