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Advances in Civil Engineering
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2020
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Article
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Fig 7
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Research Article
Numerical Study of Damage to Rock Surrounding an Underground Coal Roadway Excavation
Figure 7
Vertical stress nephogram: (a) 100 steps, (b) 300 steps, (c) 500 steps, (d) 1000 steps, (e) 3000 steps, and (f) 5000 steps.