Research Article
Stress Evolution Law of Surrounding Rock with Gob-Side Entry Retaining by Roof Cutting and Pressure Release in Composite Roof
Figure 11
Dynamic distribution of vertical stress during mining: (a) 10 m; (b) 30 m; (c) 60 m; (d) 80 m (unit: Pa).
(a) |
(b) |
(c) |
(d) |