Stability law and control technology of small coal pillar in super high water backfilling face with deep mining depth
In order to explore the reasonable coal pillar size of the backfilling working face, taking Shandong Yineng Coal Mine as the engineering background, a structural mechanics model of “backfilling body-coal pillar-backfilling body” was constructed. The damage level is determined by studying the intern...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Safety in Coal Mines
2021-06-01
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| Series: | Meikuang Anquan |
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| Online Access: | https://www.mkaqzz.com/cn/article/id/7510 |