Numerical Simulation Research of Smooth Wall Blasting Using the Timing Sequence Control Method under Different Primary Blast Hole Shapes

<div>Crack formation diagram for different PBH shapes and different delay time. (a) The PBH is a round hole, different longitudinal wave multiples. (b) The PBH is a notch hole, different longitudinal wave multiples. (c) The PBH is a round hole, different transverse wave multiples. (d) The PBH is notch hole, different transverse wave multiples.</div>

Shock and Vibration

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Figure 10

Figure 10: Numerical Simulation Research of Smooth Wall Blasting Using the Timing Sequence Control Method under Different Primary Blast Hole Shapes 