Abstract: This paper presents the comprehensive stability evaluation results of a landslide in Qingxi, Chongqing City. The site geological conditions, geotechnical properties, potential contributing and triggering factors were investigated in detail. It is concluded that the Qingxi landslide was the results of the combination actions of heavy precipitations, river erosion and human activities. The weak zone formed by the daylighting sandstonemudstone weak zones and the unloading at the front of the slide are the main triggering factors. The limit equilibrium analysis under various conditions indicate that the stability of the site slope under the adverse effect of the heavy rain, raise of reservoir water level and human activities was compromised and the stability state changed to instable. The analytical results provided the basis for the slope stability mitigation measures.

Key words: Stability Evaluations, Deformation Characteristics, Landslide Prediction, Mitigation Measures