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

<div>Stress concentration curve of elements a1 and b1 of TBH wall before TBH initiation for different PBH shapes. (a) Delay time 194 <i>μ</i>s. (b) Delay time 536 <i>μ</i>s.</div>

Shock and Vibration

fig13

Figure 13

Figure 13: Numerical Simulation Research of Smooth Wall Blasting Using the Timing Sequence Control Method under Different Primary Blast Hole Shapes 