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- Information Circulars
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Results 51 - 60 of 150
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6/1/2009 - Information CircularsThis paper examines four different stress analysis programs or tools for analyzing stress around a single longwall panel at 610 m (2,000 ft) depth beneath overburden containing some strong strata.
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6/1/2009 - Information CircularsNIOSH organized the International Workshop to improve understanding of the rock response obtained from modeling. The papers address various numerical modeling approaches, rock mass modeling, and applications in coal and metal mines.
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10/1/2008 - Information CircularsThis NIOSH pilot project demonstrated that most US mines have the capability to successfully implement an MHRA. The basic requirement for a successful MHRA is the desire to become more proactive in reducing risks associated with catastrophic events.
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The guidelines in this report are to be used as a tool to identify areas or conditions that could impact the long-term stability of an underground fluid retention system and to give direction in addressing these situations.
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4/1/2008 - Information CircularsThis report presents a historical framework detailing the impact of geologic features on excess gas emissions and resultant mine explosions.
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2/1/2008 - Information CircularsThis report summarizes a field study by NIOSH that documented the reactions of 30 miners at 4 underground coal mines concerning the use of personal dust monitors (PDMs) and how they make use of the information it provides.
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5/1/2007 - Conference papers, Information CircularsA detailed evaluation of the multiple-seam experiences at Harris No. 1 Mine was done as part of NIOSH's nationwide multiple-seam mining case history database.
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5/1/2007 - Information CircularsThe goal of this study is to help identify the location and likely severity of multiple-seam interactions. Mine planners can use this information to adjust the ground support, pillar design, or mine layout to minimize the hazard.
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Multiple-seam interactions are a major ground control hazard in many U.S. underground coal mines. NIOSH has been conducting research to develop better techniques for predicting the location and severity of multiple-seam interactions.
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5/1/2007 - Information CircularsFor the past several years, NIOSH has been conducting research to develop better techniques for predicting the location and severity of multiple-seam interactions. This paper presents the background to that study.
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Content source: National Institute for Occupational Safety and Health, Mining Program