METHOD OF REPAIRING REVETMENT IN COAST, HARBOR AND THE LIKE

摘要

PURPOSE:To improve work efficiency to reduce a construction period and to make it possible to execute repairing work of a revetment with safety and certainty by pouring chemicals into a hole bored the hollow of the rear side of the revetment from the ground surface to cover a gap with a waterproof seal, and executing backfilling. CONSTITUTION:An injection pipe 9 is erected into a hole bored to the hollow 5 of the rear side of revetment blocks 2 from the ground surface, and the end thereof is set to the level of a gap 6. After that, water absorbing porima is poured by means of an injection pump 10 to form a cut-off film into the gap 6. Then, isocyanate compound is injected to form a solidified film, and cement milk is also injected to form a cut-off seal with high strength. After the completion of the seal, the backfilling of mortar and the backfilling of earth, etc. are carried out. According to the constitution, the execution is possible is dependent of whether there exists the seawater or not, and water stop agent is injected from the ground surface, so that work efficiency is improved, and a construction period can be reduced to repair with safety and certainty.