Analysis of overburden structure and support working resistance of working face in fully-mechanized top coal caving with large mining height in ultra thick coal seam
In order to grasp the overburden structure and support working resistance of working face in fully-mechanized top coal caving with large mining height in ultra thick coal seam, this paper study the ultra thick coal seam in Tongxin coal mine.The fracture and combining form of the overburden strata in...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Emergency Management Press
2017-02-01
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| Series: | 矿业科学学报 |
| Subjects: | |
| Online Access: | http://kykxxb.cumtb.edu.cn/article/id/46 |