Zobrazeno 1 - 2
of 2
pro vyhledávání: '"Chunyang Quan"'
Publikováno v:
International Journal of Coal Science & Technology. 8:1336-1350
When mining extra-thick coal seams, the main cause of strong ground pressure are the high-level thick and hard strata, but as yet there is no active and effective control technology. This paper proposes the method of subjecting hard roofs to ground f
During extra-thick coal seam mining, the high-level thick and hard strata are the main reason for the presence of a strong ground pressure in the working face; however, there is no active and effective control technology for high-level hard strata. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a081735fcb01ee2bac0d04dd39b9ea01
https://doi.org/10.21203/rs.3.rs-73625/v2
https://doi.org/10.21203/rs.3.rs-73625/v2