Key Parameters of the Roof Cutting and Pressure Relief Technology in the Pre-Splitting Blasting of a Hard Roof in Guqiao Coal Mine
The phenomenon of crushing the support of the hard roof of a coal seam occurs occasionally during the coal mining process. However, making the hard roof fall is difficult due to its good integrity and high strength. A vast area of unsupported, suspended roof can easily form in the goaf, inducing the...
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| Principais autores: | , |
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| 格式: | Artigo |
| 语言: | Inglês |
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MDPI AG
2024-12-01
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| 丛编: | Applied Sciences |
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| 在线阅读: | https://www.mdpi.com/2076-3417/14/24/11779 |
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