Study of Instability Mechanism and Roof Caving Mode of Cementing Filling Stope: The Case Study of a Nonferrous Metal Mine in China

Figure 17

Displacement cloud diagram of the model during mining process. (a) Steady state of the roof. (b) Arch caving of roof filling body. (c) Initial stage of plug subsidence of overlying gneiss. (d) Late stage of plug subsidence of overlying gneiss.

(a)

(b)

(c)

(d)