陡峭建基面溢洪道挑坎动力稳定性分析  

Dynamic Stability Analysis of Spillway Flip Bucket of Steep Foundation

作　　者：张继勋[1] 任旭华[1] 王超[1] 陶冉冉[1] 

机构地区：[1]河海大学水利水电学院,江苏南京210098

出　　处：《水电能源科学》2012年第1期124-126,23,共4页Water Resources and Power

基　　金：中央高校科研业务经费基金资助项目(2009B07714);国家自然科学基金资助项目(50978083)

摘　　要：以建于陡峭建基面上的溢洪道挑坎为研究对象,针对工程运行中的水流脉动问题和可能的地震作用,利用三维有限元和刚体极限平衡理论相结合的方法,研究了挑坎的动力稳定性。计算结果表明,建于陡峭建基面上的溢洪道工程侧向稳定是抗滑稳定的薄弱环节,提出的加固措施对提高工程的抗滑稳定效果较好,为类似工程的设计与建设提供了借鉴和参考。Taking the flip bucket of spillway built on steep foundation surface for an example, combination of 3D finite element method with rigid body limit equilibrium theory is adopted to study dynamic stability of flip bucket by consid- ering flow pulsation problem and seismic effects in engineering operation. The results show that the lateral stability is the weak link of stability against sliding for flip bucket of spillway built on steep foundation surface; the proposed reinforcement measures have good effect for improving project stability against sliding, which provides reference for design and construction of similar projects.

关 键 词：溢洪道 挑坎 脉动压力 动力稳定性 

分 类 号：TV74[水利工程—水利水电工程] TV651.1