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- Mine locations, excavations, and structures:
- Ore passes
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Results 1 - 9 of 9
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2/1/2003 - Conference papersIn this paper, existing ore pass design criteria rules-of-thumb using current particle flow equations are reviewed and a comparison of two computer modeling programs, Working Model (WM 2-D) and PFC2d, to simulate rock flow are investigated.
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1/1/2000 - Technology NewsBridging of material in ore passes causes blockages in the flow of material. These blockages can be hazardous and must be removed before production can continue.
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6/1/1999 - Conference papersThis paper describes research to improve safety during transport of ore and waste in underground mines.
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3/1/1999 - Peer reviewed journal articlesNIOSH researchers are investigating methods to improve safety during the transport of ore in ore passes.
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5/1/1998 - Conference papersThe U.S. Mine Safety and Health Administration (MSHA) has identified ore pass hazards as s significant safety problem in underground metal mines in the United States. Researchers at the Spokane Research Laboratory of the National Institute for Occupati...
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2/1/1998 - Technology NewsRecent ore pass failures have underlined the lack of ore pass design methods and standards available to both MSHA and mine engineers.
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5/1/1997 - Technology NewsThe Mine Safety and Health Administration (MSHA) has requested new safeguards and design criteria for hoists and ore passes. However, equipment suppliers and mining companies cannot justify the costs nor interrupt production to develop and test safer te...
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2/1/1997 - Reports of InvestigationsA Report of Investigations detailing research aimed at preventing injuries and fatalities related to vertical movement of personnel and materials in mine shafts and ore passes.
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1/1/1997 - Peer reviewed journal articlesAn investigation of the hazards in and around ore passes in hard rock mines. Risk assessment methods, such as fault-tree analysis, have been employed to identify the most probable causes of ore-pass failures, define research priorities and analyze the f...
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Content source: National Institute for Occupational Safety and Health, Mining Program