ENVIRONMENTALLY-FRIENDLY COMBINED NON-EXCAVATION REPAIR METHOD TO REPAIR THE ENTIRE LEAK PORTION WITHOUT EXCAVATION

摘要

PURPOSE: An environmentally-friendly combined non-excavation repair method is provided to repair the entire pipeline without excavation b sealing up a manhole, a pipeline, and branch pipes.;CONSTITUTION: An environmentally-friendly combined non-excavation repair method is as follows. The amounts of leakage at the upper and lower parts of a sewer pipeline(100), a manhole, and branch pipes in a repair area are measured. When the amounts of leakage are large, non-excavation precise partial repair for a damaged pipeline is carried out. If the water leakage is not stopped, first repair liquid is filled in the pipeline at high pressure. After 40 minutes or an hour, the repair liquid remaining in the pipeline is sucked into a tank. Second repair liquid is additionally injected into the pipeline to be infiltrated into a damaged portion of the pipeline and mixed and hardened with sand and soil or materials in clearances. The repair liquid remaining in the pipeline is sucked into the tank to be stored. The sewer pipeline, the manhole, and the branch pipes are cleaned. The repair liquid staying on the bottom of the pipeline is eliminated.;COPYRIGHT KIPO 2011