摘要
应用FLAC3D对泰安抽水蓄能电站进、出水口围堰防渗结构进行了三维流-固耦合分析。同时,研究了基础开挖对围堰和基础边坡稳定性的影响。计算结果表明,高压喷射灌浆防渗心墙对围堰和基础边坡具有良好的防渗作用,增强了围堰和基础边坡的稳定性。开挖过程对围堰和基础边坡的影响是局部的,对围堰和基础的整体稳定没有产生更大的影响及引起坡脚的破坏,表明开挖侧面预留平台宽度是合理的。
Based on the general principle of 3D hydro-mechanical coupling of finite differential equation,FLAC3D is applied to analyze the 3D saturation-unsaturation flow for the hydro-mechanical coupling of the embankment of Taian Pumped-storage Station. At the same time,the effect of foundation excavation on the stability of embankment and slope of the foundation is studied. Computational result indicates that the core wall is very good for preventing seepage and enhancing the stability of the embankment and slope of foundation. The effect of excavating process on the stability of embankment and slope of the foundation is only local. Nearly no serious breakage of embankment and foundation occurs,and the designed width of the flat roof is rational.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第8期1275-1279,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金杰出青年基金B类(50229901)
面上基金(40272120)
国家重点基础研究发展规划(973)项目(2002CB412705)资助课题
关键词
泰安抽水蓄能电站
围堰
稳定性
流-固耦合
渗流
岩石力学
rock mechanics,saturation-unsaturation flow,seepage,FLAC,hydro-mechanical interaction,embankment
