Study of the Fracture Law of Overlying Strata under Water Based on the Flow-Stress-Damage Model

Figure 6

Distribution of plastic deformation in overlying strata at different mining upper limits: (a) mined upper limit of -715 m, (b) mined upper limit of -710 m, and (c) mined upper limit of -705 m.

(a)

(b)

(c)