Macro-Micro Response Characteristics of Surrounding Rock and Overlying Strata towards the Transition from Open-Pit to Underground Mining

Figure 4

Subsidence displacements after each excavation step of the similar material model.

(a) First excavation step

(b) Third excavation step

(c) Fifth excavation step

(d) Sixth excavation step

(e) Eighth excavation step

(f) Tenth excavation step