Study on Deformation Response Law of Surrounding Rock in Solid Backfill Mining Stope

Figure 9

Total deformation nephogram of surrounding rock under different advancing lengths of working face. (a) working face advancing 30 m, unfilled: (b) working face advancing 30 m, backfill 20 m; (c) working face advancing 60 m, backfill 30 m; (d) working face advancing 80 m, backfill 70 m.

(a)

(b)

(c)

(d)