Simulation Study of the Roof Fracture Pattern of a Horizontal Sublevel Caving in a Steeply Inclined Thick Coal Seam

Figure 13

Rock’s plastic zone distribution. (a) The upper section advances 10 m. (b) The upper section advances 50 m. (c) The upper section advances 100 m. (d) The lower section advances 10 m. (e) The lower section advances 50 m. (f) The lower section advances 100 m.

(a)

(b)

(c)

(d)

(e)

(f)