湘江长沙综合枢纽左岸二期围堰稳定分析  

The stability analysis of the second stage cofferdam on the left bank of Changsha Xiangjian

作　　者：周俊[1] 刘晓平[1] 林积大[1] 周千凯[1] 凌威[1] 

机构地区：[1]长沙理工大学水利工程学院,湖南长沙410004

出　　处：《交通科学与工程》2012年第1期69-73,共5页Journal of Transport Science and Engineering

摘　　要：采用GEOSTUDIO边坡稳定及渗流分析程序,对围堰在设计洪水位时、过水工况及降雨条件下纵向边坡渗流和稳定情况进行了分析.分析结果表明:防渗心墙对围堰和边坡具有良好的防渗作用,它增强了围堰和基础边坡的稳定性.在降雨和过水情况下,堰体内渗流场发生明显改变,应对背水坡结构进行优化或采取适当安全预防措施.The seepage stability is analyzed using the GEOSTUDIO slope stability and seepage analysis program, the cofferdam seepage stability of the slope longitudinal is an- alyzed under the situation of design flood in a rain fall conditions. The calculated results show that the impervious core wall has good anti-seepage effect on the cofferdam and slope, it can increase the stability of cofferdam and the slope base. In rainfall and over- flow cases, seepage field within the weir body changed obviously, the structure of downstreamslope should be optimized or take proper safety precautions.

关 键 词：抗滑稳定分析 渗流 降雨 GEOSTUDIO 围堰 

分 类 号：TV641[水利工程—水利水电工程]