目前,我国共建有8万多座水库。它增强了江河综合防洪能力,提高了水资源调控水平,在防洪、灌溉、供水、发电等方面发挥了巨大作用。这些水库大多数建于上世纪50年代末到70年代初,限于当时的技术经济条件,有相当一部分水库存在不同程度的病险问题, At present, China has built more than 80,000 reservoirs. It enhances the comprehensive flood control ability of rivers and improves the level of water resources regulation and control, and plays a significant role in flood control, irrigation, water supply and power generation. Most of these reservoirs were built in the late 1950s to the early 1970s and were limited to the technical and economic conditions prevailing at the time. A considerable part of the reservoirs were experiencing varying degrees of risk problems.