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Shock and Vibration
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Shock and Vibration
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2021
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Article
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Fig 1
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Research Article
Fracture Mechanism in Overlying Strata during Longwall Mining
Figure 1
The mechanical model of the KS: (a) the KS plane structure; (b) the stress state of the PKS; (c) the stress state of the IKS.
(a)
(b)
(c)