Deformation Forecasting of Surrounding Rock Mass Based on Correlation between Frequency and Fracture Scale of Microseismicity

Figure 9

The accumulative variation of dominant frequency of MS signals: (a) date time: 23/12/2013∼26/12/2013, (b) date time: 23/12/2013∼1/1/2014, (c) date time: 23/12/2013∼6/1/2014, and (d) date time: 23/12/2013∼10/1/2014.

(a)

(b)

(c)

(d)