库岸高填方路堤稳定性渗流耦合数值分析

The stability of high embankment on reservoir bank based on numerical analysis of fluid-solid coupling

基于水库的水位升降对边坡和高填路堤的稳定性产生一定影响,以福建龙长高速公路何家陂水库影响段高填路堤为工程实例,运用饱和-非饱和渗流理论,利用有限元分析软件Geo-Studio对高填路堤在库水位变化条件下的渗流场进行数值模拟,将得到的渗流结果与传统的极限平衡方法进行耦合,对库区影响段高填路堤进行稳定性分析,并对填料的渗透系数对高填路堤的稳定性影响进行探讨。分析结果较为符合实际。

Based on the stability of high embankment affected by the change of reservoir water level,high embankment of Long chang high way affected by He jia pi reservoir in Fujian province as a case is studied in this paper.Saturated and unsaturated seepage theory has been used to numerically simulate the seepage field of high embankment by Geo-Studio.The limit equilibrium method coupled with the result of seepage field mentioned above,has been used to analysis the stability of the high embankment in the reservoir area.The stability of high embankment affected by the permeability coefficient of fill material is also discussed here.The result of stability analysis is reasonable.