Research on failure mechanism and support technology of fractured rock mass in an undersea gold mine

The surrounding rock control has been a difficult problem for fractured mass in hard mines. This article describes case study of the failure mechanisms and support design technology drifts Xinli Gold Mine. Based on field investigation, geology characteristics, types, influencing factors, their types were analyzed. classification, physical mechanical parameters obtained by using Q, RMR, GSI systems. zoning rock, stability analysis schemes carried out based classification results. pretension is designed China underground mine experiences verified numerical simulation. RS2 was used to compare plastic zone under pre- post-support conditions. significantly reduced after installed, which indicates that can effectively rock. In view difficulties excavation mass, short proposed ensure success drift mass. application shows are effective.