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Simulation of directional crack propagation by energy-absorbing blasting in deep gob-side entry retaining under different lateral pressure coefficients

Fig 5

Diagram of Single-Hole Shaped Charge Blasting and Slot Formation Process (a) 8μs (b) 30μs (c) 60μs (d) 120μs (e)300μs (f) Physical Test Results [25].

Fig 5

doi: https://doi.org/10.1371/journal.pone.0336444.g005