Instability energy mechanism of super-large section crossing chambers in deep coal mines
The stress concentration and failure at chamber intersections in coal mine are intense, especially in deep-buried, super-large section conditions. In this paper, the plastic radius of super-large section chamber under unequal pressure was corrected on the basis of the size effect. Then, stress and f...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-09-01
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| Series: | International Journal of Mining Science and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095268622000660 |