Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Heather Dougherty"'
Publikováno v:
International Journal of Mining Science and Technology, Vol 31, Iss 1, Pp 103-110 (2021)
Longwall gateroad entries are subject to changing horizontal and vertical stress induced by redistribution of loads around the extracted panel. The stress changes can result in significant deformation of the entries that may include roof sag, rib dil
Externí odkaz:
https://doaj.org/article/a250d3e120e644b4928d7f0899c703a3
Publikováno v:
International Journal of Mining Science and Technology, Vol 30, Iss 1, Pp 3-9 (2020)
Longwall mining has a significant influence on gas wells located within longwall chain pillars. Subsurface subsidence and abutment pressure induced by longwall mining can cause excessive stresses and deformations in gas well casings. If the gas well
Externí odkaz:
https://doaj.org/article/62cbf1fc444a4c388193bd63bb5e3098
Publikováno v:
International Journal of Mining Science and Technology, Vol 29, Iss 1, Pp 35-43 (2019)
Coal mine longwall gateroads are subject to changing loading conditions induced by the advancing longwall face. The ground response and support requirements are closely related to the magnitude and orientation of the stress changes, as well as the lo
Externí odkaz:
https://doaj.org/article/ce6ed4cbb5874243826b1342ed4f76fd
Publikováno v:
International Journal of Mining Science and Technology, Vol 28, Iss 6, Pp 969-974 (2018)
This report presents the results of experiments to evaluate a prototype fiber optic methane monitor exposed to smoke using a smoke chamber to simulate atmospheric conditions in an underground coal mine after a fire or explosion. The experiments were
Externí odkaz:
https://doaj.org/article/292f410b009a4a2d816216b9bf6a1044
Publikováno v:
Mining, Metallurgy & Exploration. 39:1345-1355
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4d707d3ba0140d0c2d176dd53b7f29a
https://doi.org/10.1007/s42461-022-00622-z
https://doi.org/10.1007/s42461-022-00622-z
Autor:
Heather Dougherty, Peter Zhang, Ted Klemetti, I. Berk Tulu, Gabriel S. Esterhuizen, Morgan M. Sears, Mark Van Dyke
Publikováno v:
Mining, Metallurgy & Exploration. 38:1739-1759
Ground falls in longwall gateroad entries remain a concern in modern longwall operations. The gateroads are subject to changing horizontal and vertical ground stress induced by longwall extraction. These stress changes can result in failure of the st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e182f4e28719b30d966894a9870d62c
https://doi.org/10.1007/s42461-021-00430-x
https://doi.org/10.1007/s42461-021-00430-x
Publikováno v:
International Journal of Mining Science and Technology, Vol 31, Iss 3, Pp 523-529 (2021)
This paper presents the results of a unique study conducted by the National Institute for Occupational Safety and Health (NIOSH) from 2016 to 2019 to evaluate the effects of longwall-induced subsurface deformations on shale gas well casing integrity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::923b2c35797ded4708d440fa6c29c0b7
http://www.sciencedirect.com/science/article/pii/S2095268620309472
http://www.sciencedirect.com/science/article/pii/S2095268620309472
Publikováno v:
International Journal of Mining Science and Technology, Vol 31, Iss 1, Pp 103-110 (2021)
Longwall gateroad entries are subject to changing horizontal and vertical stress induced by redistribution of loads around the extracted panel. The stress changes can result in significant deformation of the entries that may include roof sag, rib dil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7d3e95561fd09c5f00be520427a4a9f
https://doi.org/10.1016/j.ijmst.2020.12.016
https://doi.org/10.1016/j.ijmst.2020.12.016
Publikováno v:
CIM Journal. 11:238-247
Underground mines have the risk of accumulating gases if not ventilated properly or during and after emergency situations when ventilation controls become damaged or stop working. Common gases that...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfab66350450672ef0fab5f4a07c8195
https://doi.org/10.1080/19236026.2020.1833646
https://doi.org/10.1080/19236026.2020.1833646
Publikováno v:
Transactions of Society for Mining, Metallurgy, and Exploration, Inc. 342(1)
Longwall face ventilation is an important component of the overall coal mine ventilation system. Increased production rates due to higher-capacity mining equipment tend to also increase methane emission rates from the coal face, which must be diluted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9385863a7bcfc4d8f7ff0d3ff1ff25bc
https://pubmed.ncbi.nlm.nih.gov/29780220
https://pubmed.ncbi.nlm.nih.gov/29780220