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

<div>The relative position relation between the abandoned roadway and fracture position. (a) Fracture of the main roof (type i); (b) fracture of the main roof (type ii); (c) fracture of the main roof (type iii).</div>

Shock and Vibration

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Figure 11

Figure 11: Structural Characteristics Analysis of Overlying Rocks and Prevention Measures with a Long-Wall Face Passing Across Abandoned Roadways: A Case Study 

Figure 11 | Structural Characteristics Analysis of Overlying Rocks and Prevention Measures with a Long-Wall Face Passing Across Abandoned Roadways: A Case Study 