Abstract: According to the actual situation of Baiyun ore slope, the influence of the different anchoring angle and anchorage length of rock bolt on the ore slope stability is simulated by using the FLAC3D software.The safety coefficient F of slope under different anchoring conditions based on the theory of strengh reduction.In view of the relationship between the safety coefficient F and anchoring angle and anchorage length,the optimal anchoring angle change rule and the influence of the anchorage length on the ore slope stability are obtained.So,the research result in this paper can provide reference for the rock bolt installation of Baiyun ore.

Key words: Slope consolidate, FLAC3D, Anchor arrangement, Safety coefficient