Study on pressure relief range of overlying strata and accurate gas extraction of adjacent strata in superimposed mining of coal seam
Aiming at the mining problem of No.9 coal seam with strong outburst danger in Xinyuan Coal Mine, we proposed that to mine No.3 coal seam as the upper protective layer first, by analyzing the failure mechanism of roof and floor after coal seam mining, the maximum depth of No.3 coal seam floor failure...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Safety in Coal Mines
2025-05-01
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| Series: | Meikuang Anquan |
| Subjects: | |
| Online Access: | https://www.mkaqzz.com/cn/article/doi/10.13347/j.cnki.mkaq.20241759 |
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