Research on the Reasonable Coal Pillar Width and Surrounding Rock Supporting Optimization of Gob-Side Entry under Inclined Seam Condition

Figure 10

Variation of the displacement of the surrounding rock of the roadway under different width coal pillars. (a) Top plate sinkage. (b) Bottom drum volume. (c) Coal pillar gang approach amount. (d) Solid coal gang approach amount.

(a)

(b)

(c)

(d)