| 摘要 |
PURPOSE:To improve cutting-off ability of a sheath material joining part, by a method wherein a joint between the corrugated pipe at the forward end of an anchor cable and the straight pipe is sheathed with a thermal shrinkable shrink pipe, and the shrink pipe is thermally shrinked for contact bonding. CONSTITUTION:After a corrugated pipe 2 at the forward end of an anchor cable is connected to a straight pipe 3, a synthetic resin series shrink pipe 4 having thermal shrink characteristics is attached on the outer periphery of a connection part, and a cut-off material 53 is located between the shrink pipe 4 and the corrugated pipe 2. After the both ends of the shrink pipe 4 are thermally shrinked by means of a simple burner, when the whole area of the shrink pipe 4 is heated, the shrink pipe 4 is shrinked as it compresses a joint pipe 1 for contact bonding. This improves cutting-off ability of the joint, and enables prevention of corrosion of an anchor cable 5. |
