Research on Surrounding Rock Stability Affected by Surrounding Rock Pressure and Rock Fracture under Blasting Vibration Load Action

Figure 4

Displacement fields of the lateral tunnel. (a) Excavation 5 m. (b) Excavation 20 m. (c) Excavation 35 m. (d) Excavation 45 m.

(a)

(b)

(c)

(d)