Characteristics of Stress Transfer and Progressive Fracture in Overlying Strata due to Mining-Induced Disturbances

Figure 9

Progressive fracture and deformation of the overlying strata during the mining of the working face. (a) Mining up to 4 m, (b) mining up to 8 m, (c) mining up to 20 m, (d) mining up to 40 m, (e) mining up to 100 m, and (f) mining up to 180 m.

(a)

(b)

(c)

(d)

(e)

(f)