Space-Time Evolution Laws of Zonal Disintegration in Deep Underground Caves Based on Coordination Deformation between the Bolt Body and Surrounding Rock

Figure 14

Field monitoring results of fracture distribution in partial deep rock mass: (a) 0.56 m; (b) 5.3 m; (c) 7.1 m; (d) 10.8 m.

(a)

(b)

(c)

(d)