Abstract The dam in Jiangkou water power station is a double-curvature arch dam.These are many soft intercalated layers and caverns, among them, K8 cavern is biggest.

• 摘要 江口水电站大坝为混凝土双曲拱坝，坝址区的软弱夹层较多，并有溶洞发育，其中以K8溶洞规模最大。