Improving the Stability of Subsurface Structures in Deep Metal Mines by Stress and Energy Adjustment: A Case Study

Figure 5

Typical ground failures in deep mining of northwestern Jiaodong. (a) Rockfall, −870 m level, located at SSDF zone. (b) Extruding deformation, −785 m level, located at MRF zone. (c) Rockburst, −980 m level, located at JJF zone. (d) Support failures, −1070 m level, located at ZPF zone.

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