Research on a Numerical Simulation and Prediction Model of Floor Mining Failure Depth in the Chenghe Mining Area

Figure 8

Floor failure range with different burial depths under the working face width of 160 m.

(a) Burying depth 100 m

(b) Burying depth 200 m

(c) Burying depth 300 m

(d) Burying depth 400 m

(e) Burying depth 500 m

(f) Burying depth 600 m