Modify Selection
- Tasks and activities:
- Mine design
- Document types:
- Conference papers
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Results 1 - 10 of 25
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7/1/2010 - Conference papersThe paper provides a basic set of input data and a modeling approach that can be used for numerical modeling investigations of various coal mine designs using the FLAC3D software package.
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6/1/2008 - Conference papersThe paper provides: (a) a description of the gas pressure-based design approach to blasting, (b) a simple technique for estimating the damage radius of the buffer row of holes, and (c) a discussion of smoothwall design for the contour row of holes.
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8/1/2001 - Conference papersThis paper discusses misconceptions about how roof supports perform and factors that impact their performance. The paper is limited to a discussion of secondary roof support systems and powered roof supports such as longwall shields.
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2/1/2001 - Conference papersThree alternative approaches to reduce the risk of catastrophic collapse are described: containment, prevention, and full-extraction. Without good data available on post-failure pillar behavior, containment and full-extraction are the safest.
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8/1/2000 - Conference papersRock drilling parameters including thrust, rotational speed, torque and velocity were examined to determine the ability to identify the strength of the rocks being drilled from the measured parameters.
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Critical Review of Numerical Stress Analysis Tools for Deep Coal Longwall Panels Under Strong Strata2/1/2009 - Conference papersThis report describes a study undertaken by NIOSH to more fully appreciate the application of numerical models in support of research on dynamic failure (bumps and bounces) in deep western coal mines.
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2/1/2008 - Conference papersThis paper describes NIOSH research demonstrating that the ventilation of large-opening mines improves significantly by including ventilation requirements in the mine planning process and implementing some practical techniques during mining.
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7/1/2007 - Conference papersThis paper presents the results of a study of roof conditions in 34 limestone mines in the Eastern and Midwestern U.S.
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8/1/2006 - Conference papersDescribes the procedures and thought processes used by coal mine geologists when determining various mineability and reserve extraction feasibility issues. The paper also address underground geologic hazard mapping and prediction techniques.
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6/1/2006 - Conference papersA method is presented for creating realistic numerical models for practical coal mine ground control. This procedure enables realistic comparisons of the effectiveness of alternative rock support systems.
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Content source: National Institute for Occupational Safety and Health, Mining Program