Research Article
Study on Reasonable Roadway Position of Working Face under Strip Coal Pillar in Rock Burst Mine
Figure 14
Vertical stress diagram of coal pillars in different width sections: (a) 4 m, (b) 5 m, (c) 8 m, (d) 10 m, (e) 13 m, and (f) 15 m.
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(b) |
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(e) |
(f) |