Estimation of Rock Burst Grades Using Rock Mass Strength

Figure 5

Appearances after rock bursts at different measurement locations. (a) Point 1. (b) Point 2. (c) Point 3. (d) Point 4. (e) Point 5. (f) Point 6. (g) Point 7. (h) Point 8. (i) Point 9. (j) Point 10. (k) Point 11. (l) Point 12. (m) Point 13. (n) Point 14. (o) Point 15. (p) Point 16. (q) Point17. (r) Point 18.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)

(k)

(l)

(m)

(n)

(o)

(p)

(q)

(r)