Green coal mining technique integrating mining-dressing-gas draining-backfilling-mining
Aiming to address the following major engineering issues faced by the Pingdingshan No. 12 mine: (1) difficulty in implementing auxiliary lifting because of its depth (i.e., beyond 1000m); (2) highly gassy main coal seam with low permeability; (3) unstable overlying coal seam without suitable conditi...
| Main Authors: | , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Elsevier
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/40305 |