| 摘要 |
<p>PURPOSE:To drastically shorten the construction period by injecting a weak electric conductive resin into the soil in the vicinity of the repaired part of a pipe and hardening the weak electric conductive resin by applying a voltage. CONSTITUTION:A weak electric conductive resin 5 which is prepared by mixing the electric conductive material with the liquid resin which is hardened by heating is injected by an injector 3 into the soil 2 in the vicinity of the leaking part of a pipe 1, and a voltage is applied on the weak electric conductive resin 5, and the leaking part is sealed by the hardening by the heating due to the generated heat. Therefore, an underground-buried pipe can be repaired perfectly or nearly perfectly eliminating the excavation of the soil, and the construction period can be shortened.</p> |
