Research Article

Dynamic Surface Subsidence Characteristics due to Super-Large Working Face in Fragile-Ecological Mining Areas: A Case Study in Shendong Coalfield, China

Figure 11

Dynamic extension and distribution of surface crack due to SLWF, (a) advanced 0.52 H; (b) advanced 0.85 H; (c) advanced 1.12 H; (d) advanced 1.37 H; (e) advanced 2.18 H [19, 37].
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