Numerical Analyses on Deformation and Failure Characteristics of Surrounding Rock of Gob-Side Entry Retention by Roof Cutting

Figure 14

Fracture development in surrounding rock with varied roadway width (the pink line represents the open cracks and the blue line stands for the slip cracks: (a) 4 m; (b) 5 m; (c) 6 m; (d) 7 m.

(a)

(b)

(c)

(d)