Abstract: Based on geological conditions of a high rock slope, the potential failure mode of the slope is evaluated, which belongs to the sliding failure along the structural plane. Then, the stability analysis model is established, and the rigid M-P method is utilized to analyze the stability of the high rock slope. Furthermore, the high rock slope was reinforced by using ground anchors. The stability was also assessed after the reinforcement. The analytical results show that, after the excavation, the high rock slope was unstable under the three working conditions, namely, natural state, heavy rain, and earthquake conditions. Moreover, the potential failure characteristics was analyzed, the stability of different potential sliding body was evaluated, and the most dangerous sliding body was determined. After the reinforcement, the high rock slope met the safety requirements of the relevant specifications. The construction recommendations are proposed when the slope was excavated and reinforced, which can provide the construction reference for similar the high rock slope.

Key words: Slope Engineering, Stability, Factor of Safety, Ground Anchors