Abstract: The case history of a landslide at Shiqian Springs Road in Guizhou is presented in this paper. The site environmental geology conditions, geotechnical information of the subsurface conditions are analyzed based on the site specific investigation dada. The stability analyses along different soil strata are performed by using block failure method. The factor of safety of the site is obtained as a result of the analysis and the mitigation measures are proposed. The investigation results indicate: The slope is located on a daylight site. During the long construction period and under prolonged heavy precipitation, the unit weight of the surficial soil is increased and the shear strength of the sliding surface is also reduced, therefore, the geological hazards, such as landslide, might be triggered.

Key words: Engineering Geology, Landslides , Failure Mechanism, Stability Analysis, Mitigation Measures