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Geofluids
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2021
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Article
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Fig 12
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Research Article
Optimization and Practice for Partition Pressure Relief of Deep Mining Roadway Using Empty-Hole and Deep-Hole Blasting to Weaken Coal
Figure 12
Evolution profile of blasting-induced crack.
(a)
96
μ
s
(b)
177
μ
s
(c)
248
μ
s
(d)
332
μ
s