Zobrazeno 1 - 2
of 2
pro vyhledávání: '"Haozhou Cheng"'
Publikováno v:
International Journal of Mining Science and Technology, Vol 31, Iss 1, Pp 43-50 (2021)
In the Kaiping Coal field, mining of five coal seams, located within 80 m in the Kailuan Group, #5, #7, #8, #9 and #12 coal seam, is difficult due to small interburden thickness, concentrated stress distributions, high coal seam metamorphism, and com
Externí odkaz:
https://doaj.org/article/c75b4410df82426eac524c0a69298f23
Background: After China's economy entered a new normal, the economic growth slowed down, energy market demand shrank, and the coal industry suffered from serious overcapacity. In this context, the Chinese government carried out supply-side structural
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::865d3404e5a72e57fd0d8c1a7e49e042
https://doi.org/10.21203/rs.3.rs-53435/v1
https://doi.org/10.21203/rs.3.rs-53435/v1
