三峡水库区万州独生基滑坡稳定性分析

Stability analysis of dushengji landslide in Wanzhou,the Three Gorges Reservoir area

独生基滑坡位于重庆市万州区长江右岸。为百安坝斜坡松散堆积层沿下伏软弱层面滑动的滑坡体。属于降雨及地表生活排水诱发、人类工程活动加剧变形而形成的新滑坡。论文在分析和研究滑坡区地质环境背景、平剖面形态、特征及诱发因素的基础上,采用传递系数法计算了滑坡体各工况及荷载组合条件下的稳定系数。通过计算,滑坡在天然状态、加载及暴雨条件下均处于不稳定状态。最后根据滑坡特征、主要诱发因素及其稳定性,针对滑坡体失稳特征,通过防治方案对比,初步拟定以抗滑桩工程进行治理,以保证滑坡体的稳定。

Dushengji Landslide, lying on the right bank of the Yangtze River in Wanzhou area of Chongqing City, which is made up of loose rock-soil piling up on the Bai＇anba Slope, was induced by human activities, rainstorm and life water to come into a new landslide. On the basis of studying the geological background of landslide area, plane and profile forms and features, inducing factor, adopting the method of the transmit coefficient, the stability coefficients of landslide at the natural, rainstorm, co of the loads, etc. conditions are calculated. The result shows that it is unstable. At last, based on the characteristics, main trigger factor and the stability of Dushengji Landslide, aiming at the unstable characteristics, through the contrast of controlling scheme, the anti-sliding pile project is drawn out in order to ensure stability of the Dushengji Landslide.