Small coal pillar technology in fully-mechanized top-coal caving face of multi layer hard roof and extra thick coal seam
In order to study the stability of small coal pillar roadway protection and its characteristics of blocking disasters in adjacent goaf areas at the same layer, the mining of extra-thick coal seams with hard roofs in the Carboniferous mining area in Datong Mining Area was used as the engineering back...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Coal Science and Technology
2024-03-01
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| Series: | Meitan kexue jishu |
| Subjects: | |
| Online Access: | http://www.mtkxjs.com.cn/article/doi/10.13199/j.cnki.cst.2023-0599 |