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- Mining types and methods:
- Stone mining
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Results 21 - 30 of 48
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7/1/2009 - Conference papersA process is presented that relates the structures and their locations to provide a numerical value, or roof quality index that can be used to assess roof stability.
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7/1/2008 - Conference papersThis paper presents a pillar design methodology that was developed from a study of pillar performance in operating stone mines and concludes with guidelines for applying a developed equation and selecting appropriate input parameters.
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6/1/2008 - Peer reviewed journal articlesThis paper describes a modeling approach that can be used as a tool to evaluate potential roof failure and optimize the stability of room and pillar layouts.
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3/1/2008 - Conference papersThis paper describes a modeling approach that can be used as a tool to evaluate potential roof failure and optimize the stability of room and pillar layouts.
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10/1/2007 - Conference papersThis paper describes research into a laser absorption technique that enables one to measure elemental carbon concentration in diesel particulate matter in near real time.
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8/1/2007 - Peer reviewed journal articlesNIOSH completed a survey of equipment sound levels and worker noise exposures in the mining industry. The findings identify the equipment and machinery likely to cause worker overexposures and the workers found to be experiencing overexposures.
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7/1/2007 - Conference papersObservations of pillar conditions in limestone mines showed that the presence of weak bands in the limestone can result in pillar damage. This study investigated the mechanism of failure caused by the presence of weak bands using numerical models.
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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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2/1/2007 - Conference papersThe goal of this study was to review periods of elevated microseismic activity and determine whether fracture activity rate can be used to anticipate roof falls. The results showed that limited success would be achieved by such a system.
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1/1/2007 - Peer reviewed journal articlesA roof-fall hazard-assessment technique was developed based on engineering judgment acquired from extensive underground stone mine experience and on examination of the literature. The technique uses observational processes to assess roof fall hazard.
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Content source: National Institute for Occupational Safety and Health, Mining Program