Research on the Deformation and Failure Characteristics and Control Technology of Mining Area Rises under the Influence of Mining Stress

Affected by mining stress, roadways surrounding rock face problems such as serious deformation and failure difficult support. In this study, with the II2 area rise in Taoyuan Coal Mine taken engineering background, evolution laws of plastic zone rises during advance process working were explored aid FLAC3D software. The results suggested that increase significantly when distance between track is less than 20 m. Based on finding, it was further determined stopping line II8222 should be at least m away from rise. Furthermore, accordance characteristics under influence paper conducted a simulation four support schemes rises, quantitatively analyzed mechanical response roadway these schemes. revealed scheme “bolt-mesh-spray-cable + grouting bolt” can effectively deal stress face. Meanwhile, an application carried out. By monitoring surface displacement rock, found controlled, remarkable effect achieved. short, proposed greatly improved stability safety stress.