Investigation and Control of the Blasting-Induced Ground Vibration under Cold Condition

Figure 9

Comparison examples of blasting vibration waveform in the conventional and frozen rock mass. (a) Vibration waveform example I. (b) Frequency example I. (c) Vibration waveform example II. (d) Frequency example II.

(a)

(b)

(c)

(d)