Microseismic Response Characteristics Induced by Mining Activities: A Case Study

Figure 6

Curves of vibration velocity-time and amplitude spectrum-frequency with vibration energy = 39932.22 J. (a) Vibration velocity-time (sensor 6#). (b) Amplitude spectrum-frequency (sensor 6#). (c) Vibration velocity-time (sensor 9#). (d) Amplitude spectrum-frequency (sensor 9#).

(a)

(b)

(c)

(d)