非稳定渗流场对黏土心墙坝坝坡及心墙稳定的影响分析  

Analysis of Influence of Unsteady Seepage Field on Stability of Clay Core Wall Dam Slope and Core Wall

作　　者：袁浩瀚 焦延涛 YUAN Hao-han;JIAO Yan-tao(North China University of Water Resources and Electric Power,Zhengzhou 450045,China)

机构地区：[1]华北水利水电大学

出　　处：《价值工程》2019年第34期248-250,共3页Value Engineering

摘　　要：应用三维非稳定饱和-非饱和渗流有限元法建立xx水库枢纽区的三维有限元模型,对极端工况条件下(v=4.42m/d)坝体的非稳定渗流场进行了计算分析,结果表明1d内库水位由校核洪水位骤降至汛限水位,不会对坝坡及心墙的稳定造成不利影响。The three-dimensional unsteady saturated-unsaturated seepage is used to establish a three-dimensional finite element model of the xx reservoir pivot area.The unsteady seepage field of the dam under extreme conditions(v=4.42m/d)is calculated and analyzed.The results show that the water level in the reservoir within one day is suddenly reduced to the limit water level by the check flood level,which will not adversely affect the stability of the dam slope and the core wall.

关 键 词：三维非稳定饱和-非饱和渗流有限元法 非稳定渗流场 坝坡 

分 类 号：TV641[水利工程—水利水电工程] TV223