SEWER PIPE REPAIR METHOD AND CABLE PIPE INSTALLATION METHOD USING HDPE(HIGH DENSITY POLY ETHYLEN) LINER

摘要

PURPOSE: A repair method for a non-excavation type sewer pipe is provided to repair and reinforce a damaged sewer pipe without the waste of the cost and manpower for the road excavation. CONSTITUTION: The repair method for a non-excavation type sewer pipe comprises the steps of: washing and water-stopping a sewer pipe(10); inserting a footing liner(50a) and an internal liner(50b) into the sewer pipe(10); sealing up both cutting planes of the footing liner(50a) and the internal liner(50b); cutting off both ends of the internal liner(50b) with a water-stopping packing and injecting water into the internal liner(50b); and filling up a space between the footing liner(50a) and the internal liner(50b) with grout.