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- Stopes
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Results 1 - 9 of 9
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3/1/2004 - Reports of InvestigationsHighly stressed rock in stopes continues to be a primary safety risk for miners in underground mines because this condition can result in failures of ground that lead to both injuries and death.
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12/1/2019 - Peer reviewed journal articlesAn article describing an extensive in situ backfill instrumentation program designed to monitor long-term stope closure and induced backfill stress.
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4/1/2007 - Conference papersDetails of the operational aspects of backfilling and mining cycles at each of three mines in the western US are presented in this paper, accompanied by a summary of the mechanical properties of the backfill and its in-situ geomechanical behavior.
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10/1/2006 - Conference papersThis paper reviews design methodology in the placement and analysis of sill mats with reference to site observation coupled with on going numerical and analytically derived solutions.
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1/1/1999 - Conference papersVarious methods of monitoring slip movements on bedding planes, as well as examination of rock burst damage in stopes, suggest that many rock bursts in the Lucky Friday Mine are closely associated with these movements.
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1/1/1996 - Reports of InvestigationsResearchers at the U. S. Bureau of Mines conducted investigations to evaluate the potential for ground water contamination by mine waste used as backfill.
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7/1/1995 - Reports of InvestigationsThe U.S. Bureau of Mines conducted an overcore stress measurement on the 5300 level of the Lucky Friday Mine, Mullan, ID, to investigate the stress regime around an experimental stope in a rock-burst-prone mine. The result indicated a stress field with ...
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5/1/1994 - Technology NewsThe underground stope leaching mining system involves applying leach solutions to mineralized rock that has been fragmented by blasting ore in place, or by backfilling empty stopes.
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1/1/1992 - Reports of InvestigationsResearchers monitored rock mass response to mining of an experimental underhand longwall stope in Hecla Mining Company's Lucky Friday Mine, Mullan, Idaho. This is part 2 of 3.
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Content source: National Institute for Occupational Safety and Health, Mining Program