Research Article
Numerical Simulation Research of Smooth Wall Blasting Using the Timing Sequence Control Method under Different Primary Blast Hole Shapes
Figure 12
Stress concentration curve of elements of the TBH wall before TBH initiation when the delay time is 536 μs. (a, c, e) The PBH is a round hole. (b, d, f) The PBH is a notch hole.
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