Determining reasonable position of roadway for close coal seam
To study the layout of the short-distance thick underlying coal seam stopping roadway in Yanzishan Mine, a mechanical model of the remaining coal pillars in 4216 and 4218 of No. 4 sides of the overlying coal seam through theoretical calculation, and clarified the transfer law of the principal stress...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Emergency Management Press
2022-08-01
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| Series: | 矿业科学学报 |
| Subjects: | |
| Online Access: | http://kykxxb.cumtb.edu.cn/cn/article/doi/10.19606/j.cnki.jmst.2022.04.013 |