Investigation of Burn Cut Parameters and Model for One-Step Raise Excavation Based on Damage Evolution Mechanisms

<div>Cut blasting processes of four burn cut models: (a)–(d) spiral cut blasting process, (e)–(h) diamond cut blasting process, (i)–(l) triangular prism cut blasting process, and (m)–(p) doliform cut blasting process.</div>

Geofluids

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Figure 12

Figure 12: Investigation of Burn Cut Parameters and Model for One-Step Raise Excavation Based on Damage Evolution Mechanisms 