水库水位波动对动水压力滑坡稳定性的影响

The Influence of Reservoir Water Level Fluctuation on the Stability of Hydrodynamic PressureLandslide

为研究水库水位波动对不同渗透系数情况下滑坡稳定性系数的影响,文章以水库库区滑坡为例,基于饱和—非饱和渗流理论和有限元分析,模拟了库水位变化对滑坡稳定性的影响。结果表明:水库水位上升到160 m时,边坡稳定系数最大;水位下降到130 m时,稳定性系数最小,边坡的滑动段受到静水压力和扬压力的综合影响较大。研究结果为类似工程边坡治理提供参考。

The purpose of this paper is to study the influence of reservoir water level fluctuation on landslide stability coefficient under different permeability coefficient.Taking the landslide in reservoir area as an example,based on saturated-unsaturated seepage theory and finite element analysis,the influence of reservoir water level variation on landslide stability is simulated.The results show that the slope stability coefficient reaches the maximum when the reservoir water level rises to 160 m.When the reservoir water level falls to 130 m,the stability coefficient is the smallest.The sliding section of the slope is greatly affected by hydrostatic pressure and uplift pressure.The research results provide reference for similar engineering slope treatment.