白鹤滩水电站左岸边坡动力稳定数值计算分析  

Analysis of Dynamic Stability of Numerical Method for Slope of Left Bank at Baihetan Hydropower Station

作　　者：戴妙林[1] 李同春[1] 徐建荣[2] 徐建强[2] 徐建军[2] 

机构地区：[1]河海大学水利水电学院,江苏南京210098 [2]华东勘测设计研究院,浙江杭州310014

出　　处：《水电能源科学》2012年第1期127-130,31,共5页Water Resources and Power

基　　金：国家自然科学基金资助项目(51079044);水利部公益性行业科研专项经费基金资助项目(201001035)

摘　　要：针对白鹤滩水电站左岸边坡存在多个潜在滑动块体的问题,建立了左岸边坡的三维有限元计算模型,采用拟静力法、动力时程安全系数分析法和动力降强法研究了左岸边坡的主要块体和整体的动力稳定性。结果表明,以C3-1为底滑面的潜在滑动块体的动力稳定性能满足设计规范要求,而以LS337为底滑面的块体#1-1、#2和#3的动力稳定安全系数偏小,整体稳定安全系数亦偏低,需采取必要的加固措施。There are several potential sliding blocks in the slope of left bank at Baihetan Hydropower Station. By using quasi-static, dynamic time-history safety coefficient analysis and strength reduction methods, three-dimensional FEM calculation model of the slope is established to analyze the dynamic stability of the key blocks and the whole slope. The re- sults show that the dynamic stability of potential sliding blocks with C3-1 as bottom slide face can meet the design require ment both the dynamic stability safety factors of block #1, # 2 and #3 and its whole stability safety factors with LS337 as bottom slide surface are less than that required. So the necessary reinforcing measures should be taken.

关 键 词：白鹤滩水电站 边坡 动力稳定性 时程分析 降强法 

分 类 号：TU457[建筑科学—岩土工程]