Numerical Investigation of the Influence of Roof Fracturing Angle on the Stability of Gob-Side Entry Subjected to Dynamic Loading

Figure 13

Dynamic responses of the entry with different roof fracturing angles: (a) horizontal acceleration of the gangue rib; (b) vertical acceleration of the gangue rib; (c) horizontal acceleration of the coal rib; (d) vertical acceleration of the coal rib.

(a)

(b)

(c)

(d)