Stability and control of room mining coal pillars—taking room mining coal pillars of solid backfill recovery as an example
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DOI: 10.1007/s11771-017-3515-8
Abstract: The stability of room mining coal pillars during their secondary mining for recovering coal was analyzed. An analysis was performed for the damage and instability mechanism of coal pillars recovered by the caving mining method.… read more here.
Keywords: mining coal; coal; room mining; coal pillars ... See more keywords
Risks Induced by Room Mining Goaf and Their Assessment: A Case Study in the Shenfu-Dongsheng Mining Area
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DOI: 10.3390/su10030631
Abstract: A large area of room mining goaf has been left throughout the history of coal mining worldwide. However, because the pillars cannot perpetually retain stability, the sudden collapse of a large area of goaf can… read more here.
Keywords: area; room mining; mining; mining goaf ... See more keywords