Multivariate Prediction Model of Strength and Acoustic Emission Energy considering Parameter Correlation of Coal or Rock

Figure 7

Curves of stress and AE energy changing with time. (a) M1 ( = 0.012 mm/s). (b) M2 ( = 0.016 mm/s). (c) M3 ( = 0.018 mm/s). (d) M4 ( = 0.020 mm/s). (e) M5 ( = 0.022 mm/s). (f) M6 ( = 0.026 mm/s). (g) M7 ( = 0.028 mm/s). (h) M8 ( = 0.032 mm/s).

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)