对蓄水运用中的大坝进行加固处理,往往比新建工程更加困难,不但在设计施工中有些复杂的技术问题,而且还得考虑在加固施工期间原工程的安全与效益。双牌水库是六十年代初期建成蓄水的。在正常运行十多年后,始发现和查明坝基中有缓倾角软弱夹层问题,溢流坝有沿夹层向冲刷坑 Reinforcement of dams used in water storage is often more difficult than new construction. Not only are some complicated technical problems involved in the design and construction, but also the safety and benefits of the original project during reinforcement construction have to be considered. Shuangpai reservoir was built in the early 1960s. After more than ten years of normal operation, we found and found that there is a gentle dip in the dam foundation,