江口水电站椭圆型双曲拱坝设计特点

Design Characteristics of Ellipsoidal Double-curvature Arch Dam in Jiangkou Hydropower Station

介绍了拱坝体形优化、坝肩抗滑稳定分析、基础处理、泄洪消能系统、混凝土材料、大坝混凝土温控等方面的设计特点,并分析了原型观测资料,验证了大坝的安全性。江口水电站的实践证明,椭圆型双曲拱坝具有节省混凝土、缩短工期和受力特性好的优点。

Here, the design characteristics of arch dams are introduced in detail, such as the dam form optimizing, stability against sliding of dam abutment, foundation treatment, flood discharging and energy dissipation system, concrete materials, concrete temperature control and so on, the prototype observation data are analyzed, and the safety of dam is verified. It is proved from the practice in Jiangkou dam that the ellipsoidal double-curvature arch dam has the advantages as saving concrete, curtailing engineering time limit, better stressing characteristics and so on, so it is worth spreading.