| 摘要 |
PURPOSE: A device for repairing and reinforcing a pipeline, a repair method of a sewer pipe and a defect inspection method using the same are provided to efficiently repair and reinforce a pipeline even if the pipeline is bent or stepped. CONSTITUTION: A device for repairing and reinforcing a pipeline comprises a cylindrical outer sleeve(100) and multiple inner sleeves(200). The outer surface of the outer sleeve touches the inside a pipeline, and one and the other ends are opened. The inner sleeves are formed in a ring-shape and are inserted into multiple inner sleeve insertion grooves(110) formed on the inner surface of the outer sleeve. |
