Abstract:

Since water storage in the Three Gorges Reservoir area,reservoir water level fluctuated between 145 m and 175 m.Reservoir water level fluctuation is one of the important factors that cause slope to unstability.This article,according to rainfall and reservoir water level fluctuation to Gongjiafang4# slope, through monitoring its deformation and the regional rainfall by automated remote monitoring,studied the influence of rainfall and water level fluctuation on the slope by data sorting and analysis.The results showed that in the monitoring period,both rainfall and reservoir water level fluctuation jointly acted on the slope deformation aggravating in some time series.In some other time series,rainfall or the reservoir water level fluctuation was the dominant factor on the slope deformation aggravating.Slope deformation with 10 days rainfall was the best correlation. Monitoring indicated that the slope was still in deformation stage.Based on the deformation monitoring of the slope，it can quantitatively analyze and describe the slope motions.This study has significance on other similar landslide in the Three Gorges Area