The understanding landslide types from stress state is critical for rational landslide control. In order to determine the landslide type of Wujiang landslide in the Centianhe expansion engineering

in this study

we have analyzed the geotechnical characteristics of the landslide and the monitoring data of slope deformation. Then

the comprehensive inversion of geotechnical parameters for 4 typical sections was carried out respectively based on the suggested values of the mechanical parameters and the parameters of the laboratory test. What’s more

the calculation models of the 4 typical sections was established and analyzed based on Morgenstern-Price method. The analysis shows that slow creep deformation currently exits in the Wujiang landslide. It is probable that the shallow landslide at the leading edge is likely to fracture and collapse

while the whole landslide is less likely to slide quickly. It is most likely to take the slope toe which is in the weak area firstly to slide and then pull the other landslide to slide during the dam construction and reservoir operations. So it is concluded that the landslide is a retrogressive landslide.