Numerical Simulation of Acoustic Emission Events in Supporting Roadways under Different Dynamic Loads

Figure 6

Distribution state diagram of acoustic emission at 45° upper left of the model. (a) State distribution diagram of four-power dynamic load energy acoustic emission. (b) State distribution diagram of five-power dynamic load energy acoustic emission. (c) State distribution diagram of six-power dynamic load energy acoustic emission.

(a)

(b)

(c)