Formation Mechanism and Detection Method of Overburden Abscission Layer in Mining Coal Seam Under Thick Sandstone
In order to study the development characteristics and formation location of mining overburden in thick coal seam under thick sandstone, the overburden movement caused by mining of thick coal seam at 2301 working face in a Datong mine is taken as an example. Theoretical calculation formula ultrasonic...
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| Hovedforfatter: | |
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| Format: | Artigo |
| Sprog: | Chinês |
| Udgivet: |
Editorial Office of Safety in Coal Mines
2020-11-01
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| Serier: | Meikuang Anquan |
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| Online adgang: | https://www.mkaqzz.com/cn/article/id/7040 |
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