1 前言 随着运行年限的增长,水工建筑物的老化及病害现象日益加重,尤其是一些设计不合理、建筑材料本身不满足设计要求、施工质量差、运行条件改变和管理中存在问题的工程设施,更是未老先衰,出现混凝土碳化、裂缝、渗漏、冻融破坏、冲损、空蚀等状况,其中有不少损坏现象发生在底板、消力池、护坦、 1 Introduction With the growth of operating life, the aging of hydraulic structures and diseases are worsening, especially some of the unreasonable design, construction materials do not meet the design requirements, poor construction quality, operating conditions change and management problems Facilities, it is not old before the first decline, there concrete carbonation, cracks, leakage, freeze-thaw damage, red damage, cavitation and other conditions, of which there are many damage occurred in the floor, stilling pool,