龙滩水电工程左岸B区边坡压脚工程效果分析  

EFFECT OF PRESSING FOOT PROJECT ON THE LEFT BANK SLOPE OF LONGTAN HYDROPOWER STATION

作　　者：刘艳辉[1] 刘大安[2] 李守定[2] 程东幸[2] 

机构地区：[1]中国地质环境监测院,北京100081 [2]中国科学院工程地质力学重点实验室,北京100029

出　　处：《工程地质学报》2006年第2期239-244,共6页Journal of Engineering Geology

基　　金：中国科学院知识创新工程重要方向项目(KZCX2-SW-134);中国科学院工程地质力学重点实验室项目(04-6)资助

摘　　要：龙滩水电工程左岸蠕变体B区边坡的变形和稳定是工程安全的关键。根据边坡地质与稳定性分析,边坡的整体稳定性主要取决于坡脚岩体的稳定性,因此,B区边坡治理采取了压脚的工程措施。本文采用数值模拟方法(三维离散单元法)分析了压脚前后B区边坡的整体稳定性,结果表明B区边坡压脚工程可有效控制边坡岩体的变形。同时,数值分析结果也与边坡地表和深部位移动态监测结果一致,证明了压脚工程的显著效果。The deformation and stability of left bank slope B in Longtan Project is the key to safety of the project.Geologic and stability analyses indicate that overall stability of the left bank slope B depends on stability of the slope foot. Therefore, pressing slope foot is taken to stabilize the slope. Numerical simulation method of 3DEC （3D Discrete Element Code ） is used to analyze stability of slope B in this paper. The results show： the pressing foot project can actively control the deformation of slope B. Numerical simulation results also match well with monitored displacement of the slope, which proves effectiveness of the pressing foot project on stabilizing the slope.

关 键 词：龙滩工程 边坡压脚 动态监测 

分 类 号：TD824.72[矿业工程—煤矿开采]