Numerical Study on Soft Coal Pillar Stability in an Island Longwall Panel

<div>Relationship between the deformation of the surrounding rock and coal pillar width during roadway driving and extraction periods. (a) The roadway driving period. (b) The extraction period.</div>

Advances in Civil Engineering

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Figure 10

Figure 10: Numerical Study on Soft Coal Pillar Stability in an Island Longwall Panel 