边坡群稳定性耦联分析方法在三峡库区的应用

针对库区边坡群地质资料、水文信息等数据缺乏的问题,提出了一种库区边坡群稳定性分析方法。该方法首先利用遥感信息技术提取相关库区边坡群岩土整体特征;然后,依据某一个边坡变形破坏的实际监测数据,反算整个边坡群的详细地质信息数据;最后,使用库区边坡稳定性耦联分析模型,跟踪和预测边坡群各个边坡体的变形情况。将提出的方法应用于三峡库区一个典型边坡群的稳定性分析,结果表明预测的滑坡体位移大小和方向与野外观测结果基本吻合,预测的主要滑坡趋势轨迹方向与实际趋势形态吻合良好。

Application of coupling analysis method for slopes stability in Three Gorges Reservoir Region

Aiming at the lack of geological and hydrological data, a stability analysis method for the reservoir slopes is proposed. First, the overall geotechnical properties of the slopes are extracted using the remote sensing technology, and then the detailed geological data for the slopes is derived through an inversion model based on the monitoring data of a certain slope with deformation and failure. Finally, the deformation of each individual slope can be traced and predicted by the coupling analysis model. This method has been applied to the stability analysis of typical slopes in the Three Gorges Reservoir Region, and the results show that the predicted displacement and direction of the landslide mass basically agrees with field observation. The predicted trajectory direction of the main landslide tendency also agrees well with observation.