Research on Mechanisms and Control Measures of Surrounding Rock Disaster in Large Section Roadway with Top Coal under the Influence of Tectonic Stress

Figure 7

Distribution characteristics of plastic zone in surrounding rock of roadway with different width. (a) 3.5 m; (b) 4.0 m; (c) 4.5 m; (d) 5.0 m; (e) 5.5 m; (f) 4.0 m; (g) 4.5 m; (h) legend.

(a)

(b)

(c)

(d)

(e)

(f)

(g)