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- Mining types and methods:
- Multiple seam mining
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Results 1 - 10 of 13
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Exploration of Limestone Pillar Stability in Multiple-level Mining Conditions Using Numerical Models5/17/2023 - Peer reviewed journal articlesA study using FLAC3D models to investigate factors that control pillar stability in multiple-level conditions.
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1/1/2018 - Peer reviewed journal articlesA paper addressing the geotechnical considerations for concurrent pillar recovery in two coal seams with 21 m of interburden under about 305 m of depth of cover.
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3/1/2016 - Peer reviewed journal articlesThis article by NIOSH describes the advantage of using numerical models with the strength reduction method to evaluate entry stability in complex multiple-seam conditions.
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9/28/2012 - News articlesInundation, or water suddenly entering a mine, is not that uncommon.
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7/1/2009 - Conference papersThis paper provides an overview of current deep cover pillar recovery practice.
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11/1/2007 - Technology NewsResearch by NIOSH on multiple-seam mining has resulted in two ground control products. The first is IC 9495 which is a proceedings document. The second is the Analysis of Multiple-Seam Stability software package. Each product is briefly described.
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5/1/2007 - Conference papers, Information CircularsA detailed evaluation of the multiple-seam experiences at Harris No. 1 Mine was done as part of NIOSH's nationwide multiple-seam mining case history database.
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Multiple-seam interactions are a major ground control hazard in many U.S. underground coal mines. NIOSH has been conducting research to develop better techniques for predicting the location and severity of multiple-seam interactions.
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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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3/1/2006 - Conference papersMore than 300 case histories have been collected from underground mines mainly in central Appalachia. This paper focuses on several of the more challenging multiple seam mining situations that have been encountered.
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Content source: National Institute for Occupational Safety and Health, Mining Program