关键词: 白云大坝, 渗漏量, 低压缩区, 面板

Abstract: The primary analysis shows that low compression region is not set in the banks of dam, especially in the steep slope below left bank peripheral joint, transition material is unable to form effective protection for cushion material, and silt or silt layer is not set in blanket upstream face slab are the main reasons of exceptional leakage of Baiyun dam. Measures are taken to treat the leakage after emptying reservoir, which include repairing the cushion material, re-pouring reinforced concrete face slab which has subsided and been broken largely, and replacing the watertight seal of left bank peripheral joint and face slab vertical joint. After treatment, the leakage of Baiyun dam is largely reduced, which indicates the treatment is successful.

Key words: Baiyun dam, leakage, low compression region, face slab