Stability and Control Measures of Zhaoshuling Landslide, Badong County, Three Gorges Reservoir

The safety of the Zhaoshuling landslide, one of the most important landslides in the Three Gorges Reservoir, is directly related to that of Yanjiang Road which is located along the Changjiang River, and is also important to the land use of the Badong County, a new established county. This paper first describes the essential features of the Zhaoshuling landslide, and then presents the simulation of landslide stability using 3D finite element method for water stress coupling, and the forecasting of the landslide stability trend and permeability features after the Three Gorges Reservoir is in operation. The research shows that the change in the reservoir water is the major factor to affect the stability of the landslide. After the Three Gorges Reservoir is in operation, some parts of the landslide will turn instable. In this sense, this paper offers some principles and counter measures to prevent and treat the landslide.