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Advances in Civil Engineering
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2020
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Article
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Tab 2
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Research Article
Research on the First Breaking Mechanism of the Main Roof of Coal Seam with High Dip Angle
Table 2
First weighting interval of the main roof of the working face.
Support location
First weighting interval (m)
Lower part
32.2
Middle lower part
30.7
Middle part
28.5
Middle upper part
31.3
Upper part
33