| 摘要 |
PROBLEM TO BE SOLVED: To shorten working time required for pipeline repairing by shortening time required for discharging water by relatively enlarging a diameter of a water discharging hose relative to an inner diameter of the pipeline.SOLUTION: A pipeline repairing method for inner lining of a cylindrical inner lining material onto an inner peripheral face of a pipeline laid down in an approximately horizontal direction to flow water therein. This pipeline repairing method includes a water stop process in which a water stop member is installed on an upstream side of a part to be repaired in the pipeline, a water discharge hose laying down process which lays a water discharge hose along a lower end of an inner peripheral face of a part to be repaired, an inner lining material drawing-in process in which an inner lining material is drawn in the part to be repaired while passing it through an upper side of the water discharge hose under a condition that a reverse U-shape section is held in the part to be repaired, a water discharging process in which the water stopped by the water stopping member is discharged to a downstream side of the part to be repaired through the water discharging hose, and an expanding process in which the inner lining material is expanded in a radial direction by pouring a fluid into the inner lining material. |
