Stability Analysis and Confidence Level Evaluation of Backfill Mining under High and Steep Rock Slopes

Figure 7

Safety factors of HSRS for seismic conditions: (a) open-stope method using simplified Bishop method; (b) backfill method using simplified Bishop method; (c) open-stope method using Fellenius method; (d) backfill method using Fellenius method; (e) open-stope method using simplified Janbu method; (f) backfill method using simplified Janbu method.

(a)

(b)

(c)

(d)

(e)

(f)