Use of the Equivalent Mining Height Method for Understanding Overlying Strata Movement and Stress Distribution in an Isolated Coal Pillar

<div>Situation of fracture development before filling mining. (a) Fracture development of overlying strata before mining. (b) Fracture development of overlying strata in mining. (c) Fracture development of overlying strata after mining.</div>

Shock and Vibration

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Figure 5

Figure 5: Use of the Equivalent Mining Height Method for Understanding Overlying Strata Movement and Stress Distribution in an Isolated Coal Pillar 