三峡库区巴东某滑坡基于监测数据的变形特征与因素分析

Deformation Characteristics and Factor Analysis of a Landslide Based on Monitoring Data in Three Gorges Reservoir Area

利用湖北省三峡库区巴东某滑坡监测数据,分析其变形特征,并根据滑坡内地下水位变化,分别分析滑坡变形与大气降水和库水位变动的关联,确定其相关性。结果表明,降雨量和库水位变化是引起滑坡阶跃型变形的主要因素,滑坡前缘地下水位受库水位波动影响明显,地下水位与库水位间高度相关;地下水位变动明显滞后于库水位变动,滞后时间10—15天。

Taking advantage of a landslide monitoring data of the Three Gorges Reservoir area in Badong county,Hubei province,its deformation characteristics is analyzed,and according to the change of the underground water level,the relevance of landslide deformation,atmospheric precipitation and reservoir water level fluctuation was analyzed respectively.At last,their correlation were determined.The results show the change of rainfall and reservoir water level is the main factor that causes the step type deformation of the landslide.The groundwater level at the leading edge of the landslide is obviously affected by the fluctuation of reservoir water level.The groundwater level is highly correlated with the reservoir water level.The variation of groundwater level is obviously lagged behind the change of reservoir water level,and the delay time is10-15days.