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

<div>Elements of the TBH wall stress concentrate curve before TBH initiation when the delay time is 194 <i>μ</i>s. (a, c, e) The PBH is a round hole. (b, d, f) The PBH is a notch hole.</div>

Shock and Vibration

fig11

Figure 11

Figure 11: Numerical Simulation Research of Smooth Wall Blasting Using the Timing Sequence Control Method under Different Primary Blast Hole Shapes 