Abstract: With the rapid development of the economy, the construction of infrastructure has become more and more improved, and the artificial transformation of the original landform has been aggravated. Breaking the original balance of the slope might lead to a series of increasing slope geological hazards. This paper presents a case history of a landslide in Liuyang City. The landslide in the gravelly clay soils is focused on the analysis and study of the impact of the change of landslide soil parameters on the overall stability of the landslide based on the gradual failure of the landslide body. Based on the data collection, detailed onsite survey and laboratory testing, this paper uses ABAQUS numerical simulation software to establish a geological model, and compares the simulation results of different landslide soils from three aspects: plastic sliding area, displacement and stability. The impact of parameter changes on the landslide stability is thoroughly investigated.

Key words: Silty Clay with Gravel, Sliding Zone, Parameters, Numerical Simulation, Stability