Abstract: A twodimensional numerical model for a slope stability project was established by using the finite difference software FLAC. The stability concern was mitigated by ground anchors and the slope before and after the reinforcement were numerically analyzed. The analytical results indicate that the natural slope was marginally stable under the normal conditions but it might be unstable under the heavy precipitations. After the installation of ground anchor, the factors of safety under both normal and extreme conditions are greater than 1.25. The potential slip surface was able to be eliminated.

Key words: Shear Strength Reduction Method, Slope Stability, Safety Factor, Numerical Analysis, Ground Anchor Reinforcement.