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pro vyhledávání: '"Westman, Erik C."'
Autor:
Westman, Erik C.
Coal mining and timber are the two primary industries supporting the people of Southwest Virginia. Coal mining has occurred for more than 100 years, but production has dropped since reaching a peak in 1990. In order to properly plan with remaining co
Externí odkaz:
http://hdl.handle.net/10919/26708
http://scholar.lib.vt.edu/theses/available/etd-040899-151628/
http://scholar.lib.vt.edu/theses/available/etd-040899-151628/
Autor:
Leake, Morgen R., Conrad, William J., Westman, Erik C., Ghaychi Afrouz, Setareh, Molka, Ryan J.
Publikováno v:
In Underground Space June 2017 2(2):115-124
Publikováno v:
In International Journal of Mining Science and Technology January 2017 27(1):65-69
Publikováno v:
In Tunnelling and Underground Space Technology incorporating Trenchless Technology Research March 2012 28:278-286
Akademický článek
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Publikováno v:
In International Journal of Rock Mechanics and Mining Sciences December 2012 56:112-120
Coal mining in Virginia's Richmond basin was the first recorded production in the United States (Henderson, 1985). Since that production, more than 2.1 billion tons of coal have been extracted from three primary areas within the state: the Richmond b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2485::9ef4dac258578ceff2693d781a137f6a
https://hdl.handle.net/10919/23513
https://hdl.handle.net/10919/23513
Akademický článek
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Autor:
Westman, Erik C.1 ewestman@vt.edu
Publikováno v:
IEEE Transactions on Industry Applications. Sep/Oct2004, Vol. 40 Issue 5, p1413-1417. 5p.
Autor:
Ghaychi Afrouz, Setareh
Mining engineers are tasked with ensuring that underground mining operations be both safe and efficiently productive. Induced stress in deep mines has a significant role in the stability of the underground mines and hence the safety of the mining wor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2485::0bb4b2cd627c220bb263dcd5091c2bd4
https://hdl.handle.net/10919/97890
https://hdl.handle.net/10919/97890