WATER CHANNEL REPAIR METHOD

摘要

PROBLEM TO BE SOLVED: To provide a water channel repair method capable of surely repairing an existing water channel without need of installing a bypass water channel without causing dilution of a backfill material and material separation even if the backfill material is directly laid on a repair site where water is flowing. SOLUTION: The water channel repair method comprises the steps of laying a molded body 2 for water channel in the existing water channel 1, injecting a plastic grout obtained by mixing and stirring a solution A consisting of cement milk and a solution B consisting of a suspension including a plasticizer into a gap 4 formed between the existing water channel 1 and the molded body 2 for water channel to stop water flow in the gap 4 and then injecting the plastic grout into the gap 4 remaining unfilled to fill the gap 4. COPYRIGHT: (C)2006,JPO&NCIPI