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

<div>The diagram of stress concentration on the hole wall of the empty hole due to the longitudinal wave. (a) Empty hole subjected to uniformly distributed horizontal forces. (b) Hole wall stress. (c) Hole edge stress.</div>

Shock and Vibration

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Figure 1

Figure 1: Numerical Simulation Research of Smooth Wall Blasting Using the Timing Sequence Control Method under Different Primary Blast Hole Shapes 