Study on roof control above backfilling area for gob-side entry retaining in 22301 workface of Tunlan Coal Mine
The stability of the roof above the filling body is a key factor affecting the effect of gob-side entry retaining. In view of the problem of roof separation control of gob-side entry retaining at 22301 working face with large mining height in Tunlan Coal Mine, by analyzing the stress characteristics...
| Published in: | Meikuang Anquan |
|---|---|
| Main Author: | |
| Format: | Article |
| Language: | Chinese |
| Published: |
Editorial Office of Safety in Coal Mines
2021-12-01
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| Subjects: | |
| Online Access: | https://www.mkaqzz.com/cn/article/id/7768 |