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

<div>The tangential tensile stress nephogram at the time of 536 <i>μ</i>s (unit: 10<sup>11</sup> pa). (a) The PBH is a round hole. (b) The PBH is a notch hole.</div>

Shock and Vibration

fig14

Figure 14

Figure 14: Numerical Simulation Research of Smooth Wall Blasting Using the Timing Sequence Control Method under Different Primary Blast Hole Shapes 