Abstract: A left cut slope in ChangJi Expressway is evaluated in this project. The factors that might affect the slope stability are: slope angle, height of slope; cohesion, internal friction angle, and elastic modulus. The sensitivity of these factors to the slope stability are analyzed by using strength reduction method in the finite element analysis. The analytical results indicate that the sensitive parameters that sequentially listed as follow: slope angle, slope height; internal friction angle; cohesion and elastic modulus. The slope angle and slope height are the factors that are most affecting the slope stability.

Key words: Mountain Highways, Slopes, Stability Parameters, Sensitivity