选取香水水利枢纽工程的黏土心墙石渣坝的横剖面作为研究对象,利用GeoStudio的耦合分析功能对其进行非饱和渗流场一应力场的耦合分析及边坡抗滑安全系数的计算,得到相应的非饱和渗流场分布、水平和竖向位移分布、抗滑安全系数值。通过与非耦合情况下的应力场及渗流场对比,表明边坡位移在深层区变化缓慢,在浅层坡面位移变化比较大。与非耦合情况下的边坡抗滑安全系数值对比,表明上游坡脚稳定性不够,应采用放缓边坡以及铺石压坡等方法提高边坡稳定性。进而说明耦合分析更具有实际意义。
The transverse section of clay core rock-debris dam of Xiangshui hydraulic complex engineering is selected as the research object. The method of coupling analysis of GeoStudio is used to analyze the unsaturated seepage field-stress field and calculate the factor of safety against sliding in the clay core rock-debris dam. By this coupling analysis, heads of unsaturated seepage field and the value of safety factor against sliding are resolved. The horizontal and vertical displacement are showed with time. It shows that the slope displacement changes slowly in the deep zone and changes of displacement in the shallow slope is relatively large by comparing with the stress field and the seepage field in the non-cou- pling analysis conditioru It also shows that stability of the upstream slope base is not enough by comparing with the stability of the slope in the non-coupling analysis condition. The methods of gentle slope or paving stone and pressing slope should be adopted to improve the stability of the slope. Then it explains that the coupling analysis has more practical significance.