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7/1/2010 - Conference papersInstrumented test sites were installed in the tailgates of two western longwall operations; results of the support performance and ground reaction are presented in terms of developed support loads and displacements and tailgate entry convergence.
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10/1/2006 - Conference papersRoof screen is often bolted to the mine ceiling to help control hazardous rock falls in coal mines. This study showed that musculoskeletal stressors during screen installation were reduced by a proposed intervention.
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3/1/2005 - Brochures/flyers/pamphlets, Videos and multimediaThis 7-minute video with instructional material shows how well roof screen keeps loose rock from falling in difficult roof conditions.
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3/1/2005 - Technology NewsMost rock fall injuries can be prevented by installing roof screen during the bolting cycle. This video and accompanying instruction booklet explain techniques for roof screen installation and use of the personal bolter screen. The video also provides s...
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3/1/2004 - Information CircularsThe Spokane Research Laboratory of the National Institute for Occupational Safety and Health (NIOSH) and Thiessen Team USA, Spokane, WA, have developed a pull claw that can be attached to any accessible friction bolt ring to test bolt performance.
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7/1/2001 - Reports of InvestigationsBecause backfill has occasionally collapsed into an active working area, posing a hazard to miners, engineers installed instruments in a cemented, backfilled, stope-ramp intersection at Hecla's Lucky Friday Mine.
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9/1/1984 - Contract reports, Open File ReportsThis report deals with information regarding a new Medium Frequency (MF) Wireless Communication System for underground mines. This new telecommunication system works on low loss electromagnetic wave propagation modes which allow it to provide quality ra...
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4/1/1975 - Contract reportsThe pager phones used in many underground coal mines are battery-operated, party-line telephones with provisions for loudspeaker paging. The system is two-wire, non-polarized, and is operated by self-contained batteries. A description of the many teleph...
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Content source: National Institute for Occupational Safety and Health, Mining Program