Fracturing of the Soft Rock Surrounding a Roadway Subjected to Mining at Kouzidong Coal Mine

Figure 9

Monitoring results from displacement meters at station #2: (a) 130 m from the longwall face; (b) 90 m from the longwall face; (c) 50 m from the longwall face; (d) 10 m from the longwall face.

(a)

(b)

(c)

(d)