Evolution path of mining-induced stress field in full-mechanized caving mining
In this paper, the evolution path of mining-induced principal stress field in top coal is studied based on the in-situ stress field on the 12309 working face of Wangjialing Coal Mine. The results show that vertical stress is bigger than minimum horizontal stress but smaller than maximum horizontal...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Safety in Coal Mines
2021-05-01
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| Series: | Meikuang Anquan |
| Subjects: | |
| Online Access: | https://www.mkaqzz.com/cn/article/id/7454 |