Modify Selection
- Mining types and methods:
- Room and pillar mining
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Results 1 - 10 of 25
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1/1/2011 - Peer reviewed journal articlesStone mines in the eastern and midwestern United States use the room-and-pillar method of mining to extract relatively flat-laying sedimentary formations. A survey of pillar performance was carried out to identify potential modes of instability.
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7/1/2010 - Conference papersThis paper makes use of numerical models to examine the interaction between typical pillar systems and the surrounding rock mass for weak and strong geological conditions at various spans and depths of cover.
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10/1/2009 - Peer reviewed journal articlesInstruments remaining in a test section of a lead/zinc/copper room and pillar mine where pillar mining had taken place 14 years before were read to monitor long-term stability and quantify time dependent behavior in the mine roof and backfill.
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9/1/2006 - Peer reviewed journal articlesUS coal mining organizations are losing the knowledge they need to be able to respond to emergencies. Knowledge management provides a useful perspective from which to view the problem. Knowledge can be managed by cultivating it through narratives.
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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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5/1/2018 - Peer reviewed journal articlesA study exploring the geomechanics of bench room-and-pillar mining and the associated response of high pillar ribs at overburden depths greater than 300 m.
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10/22/2016 - Research projectsA project to develop engineering guidelines for support design that will reduce groundfall fatalities under supported roof in underground coal mines.
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10/22/2016 - Research projectsA project to define the geologic and stress criteria associated with an elevated risk of coal bursts, considering both U.S. and international experience through visits to coalfields.
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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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Content source: National Institute for Occupational Safety and Health, Mining Program