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

Figure 13

The method of backfilling abandoned roadway on Panel LW3101. (a) Backfilling method, (b) borehole peep photos i, (c) borehole peep photos (ii), (d) photo about the entrance of this abandoned roadway, (e) photo about mining face i , (f) photo about mining face (ii), and (g) work resistance.