| 摘要 |
<p>PROBLEM TO BE SOLVED: To perform reproducing and repairing construction work for the embedded drain attaching pipe communicating with a sewerage main pipe from a drainage basin or a rainwater basin without performing digging-up work. SOLUTION: A cylindrical repairing material 5 impregnated with a synthetic resin and a cylindrical reversal rubber 4 are mounted on a reversal guide 2, and the reversal rubber 4 and the repairing material 5 are reversely inserted in a drain attaching pipe from the reversal guide 2 by the action of a high pressure fluid on the reversal rubber 4 so that the repairing material 5 becomes the outside of the reversal rubber 4. The repairing material 5 is cured in the state brought into contact with the inner peripheral surface of the attaching pipe under pressure by the expanding pressure force of the reversal rubber 4 and, after the repairing material 5 is provided in the attaching pipe in a cured state, the reversal rubber 4 is pulled out.</p> |
