Experimental Investigation into the Bedding Plane Slip Effect on the Overlying Strata Behavior in Longwall Top Coal Caving of Soft Coal Seam

Figure 12

Horizontal slip contour plots in the working face with different advance distances: (a) 78 m, (b) 117 m, (c) 160 m, and (d) 315 m.

(a)

(b)

(c)

(d)