为了修复被 1998年长江流域历史罕见特大洪水破坏的水闸 ,对水闸主要破坏症状进行了分类 ,指出其破坏症状主要有裂缝破坏、冲刷、磨损及气蚀破坏和渗漏破坏三大类 ,然后分析了各类破坏的成因及产生的部位 ,最后给出了各类破坏的主要修复方法 ,并结合法泗节制闸存在的问题给出了其整险加固的具体措施 In order to repair the sluice damaged by rare and extraordinary flood in the Yangtze River Basin in 1998, the main damage symptoms of the sluice were classified. The damage symptoms were mainly divided into three categories: crack damage, erosion, abrasion, cavitation damage and seepage failure, and then analyzed The causes of all kinds of damage and the resulting parts, and finally gives the main methods of repair of all types of damage, combined with the problems existing in the Sifang gate, gives its concrete measures of consolidation and reinforcement