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- Mine locations, excavations, and structures:
- Ore passes
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- Technology News
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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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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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Content source: National Institute for Occupational Safety and Health, Mining Program