Modify Selection
- Research methods and measures:
- Ground stability
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Results 21 - 28 of 28
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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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1/1/2007 - Conference papersAnalysis of Multiple Seam Stability (AMSS) is a computer program to help mine planners evaluate potential interactions and reduce the risk of ground failure. This paper details a NIOSH study of multiple seam interactions and the development of AMSS.
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8/1/2006 - Conference papersA survey of pillar conditions was carried out at 21 operating limestone mines that use the room-and-pillar method. Pillar instability is most likely caused by unfavorable geological structures in pillars with width to height ratios of less than 1.5.
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7/1/2001 - Conference papersA system was developed to monitor rock and coal stresses during mining of an entire longwall panel. The system was designed to generate data in near real time to evaluate rock behavior in roof strata and the onset of hazardous conditions as overburden s...
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7/1/2001 - Conference papersInstrumented cable bolts were used in conjunction with existing ground control to monitor rock mass loads at various field sites. By monitoring rock mass load and displacement, more effective ground support can be selected and installed.
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8/1/1997 - Conference papersDemonstration of a technique developed at the Spokane Research Center that allows the user to create a finite-element model of a two-dimensional section of an underground mine in a relatively straightforward manner.
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7/1/1995 - Reports of InvestigationsThe U.S. Bureau of Mines conducted an overcore stress measurement on the 5300 level of the Lucky Friday Mine, Mullan, ID, to investigate the stress regime around an experimental stope in a rock-burst-prone mine. The result indicated a stress field with ...
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1/1/1992 - Reports of InvestigationsThis U.S. Bureau of Mines report summarizes a study of large-scale strata response to longwall mining at a western U.S. coal mine. This study utilized surface and subsurface measurements, geologic mapping, in situ stress measurements, and pressure cell...
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Content source: National Institute for Occupational Safety and Health, Mining Program