Structural Characteristics Analysis of Overlying Rocks and Prevention Measures with a Long-Wall Face Passing Across Abandoned Roadways: A Case Study

<div>The in situ investigation photos and schematic diagram of a serious accident. (a) Advanced coal pillar instability failure; (b) damage of hydraulic support; (c) schematic diagram of a serious accident.</div>

Shock and Vibration

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Figure 3

Figure 3: Structural Characteristics Analysis of Overlying Rocks and Prevention Measures with a Long-Wall Face Passing Across Abandoned Roadways: A Case Study 

Figure 3 | Structural Characteristics Analysis of Overlying Rocks and Prevention Measures with a Long-Wall Face Passing Across Abandoned Roadways: A Case Study 