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

Figure 11

Distribution of the plastic zone in the mining gateway with different coal pillar widths: (a) 3 m, (b) 5 m, (c) 7 m, (d) 8 m, and (e) 10 m.

(a)

(b)

(c)

(d)

(e)