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- Mining types and methods:
- Coal mining
- Document types:
- Information Circulars
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Results 11 - 20 of 32
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10/1/2000 - Information CircularsThe proceedings provide information on several new technologies including guidelines for roof bolt length, pattern, and capacity; a new design method for longwall tailgate supports; and a technique for measuring loads developed within cable bolts.
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3/1/1997 - Information CircularsThis proceedings volume contains papers presented at technology transfer seminars sponsored by the National Institute for Occupational Safety and Health (NIOSH) on New Technology for Ground Control in Retreat Mining.
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1/1/1994 - Information CircularsThis paper describes the history and technology of methane drainage in the US and other countries.
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8/16/2021 - Information CircularsRead about the latest best practices for dust control in coal mining.
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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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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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6/1/2006 - Book chapters, Information CircularsThis chapter summarizes how certain geologic features may be associated with unexpected increases in gas emissions during coal mining. These unexpected emissions have the potential to create explosive conditions in the underground workplace. Also discu...
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8/1/2000 - Information CircularsProvides a detailed description of a data collection instrument used to profile the fire prevention and response capabilities of a mine site.
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1/1/1999 - Information CircularsThis work identified the most important variables contributing to coal bumps. These are (1) mechanical properties of strata, including local yield characteristics of a mine roof and floor, (2) gate pillar factors of safety, (3) roof beam thickness, join...
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1/1/1995 - Information CircularsAn analysis of 164 underground coal mine fire incidents occurring in the United States during the 15 years from 1978 through 1992.
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Content source: National Institute for Occupational Safety and Health, Mining Program