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- Mining types and methods:
- Stone mining
- Document types:
- Conference papers
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Results 1 - 10 of 20
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7/1/2010 - Conference papersIn this paper, the findings of a survey of roof span stability issues and design practices are presented, and the observed factors contributing to roof instability are discussed.
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1/1/2000 - Conference papersThis paper outlines the evolution of the RMSS and how it can be used in a comprehensive, proactive ground control safety program. A case history describes the RMSS being used to evaluate a mechanical impact sealing machine at a limestone mine.
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8/1/1998 - Conference papersA design technique is presented which provides stone miners with a method for making stability assessments. The consequences of widening rooms, changing geology and horizontal stresses, and different rock bolts on roof beam failure are discussed.
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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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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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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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Content source: National Institute for Occupational Safety and Health, Mining Program