Abstract: This paper presents a case history of effectively monitoring, predicting and mitigating the landslides of large highway slopes. The conventional limit equilibrium method and finite element method using strength reduction are used in the stability evaluation and the results are compared with the monitoring data. In the stability analysis, the limit equilibrium method was performed by using the commercial software GeoStudio. And the finite element simulation was conducted using ABAQUS software. The results indicate that, the precipitation has a strength effect of the stability of highway slopes. The deformation of the highway slopes can be estimated using the combination of limit equilibrium and finite element methods.

Key words: Slopes, Slope Stability Analysis, Strength Reduction in Finite Element Analysis, Safety Assessment