Modify Selection
- Hazard prevention and control:
- Span design
- or
- Pressure arch design
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- Entry design
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- Roof beam design
- or
- Skin control
- or
- Scaling
- or
- Slope design
- or
- Highwall design
- or
- Support design and selection
- Document types:
- Conference papers
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Results 31 - 40 of 66
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8/1/2005 - Conference papersThe objective of this is paper is to review the current state of knowledge and practice in highwall mining.
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8/1/2005 - Conference papersThis paper summarises the results of a research project whose goal was to provide the Australian coal industry with a rib support design methodology and software tool that could be utilised by suitably qualified colliery staff.
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3/1/2005 - Conference papersA package of bench design programs is being publicly released by the National Institute for Occupational Safety and Health (NIOSH). These programs are designed to provide a probabilistic estimate of the likelihood that various widths of catch bench will...
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2/1/2005 - Conference papersResearchers conducted tests to evaluate the tensile strength, fiber count, and adhesion of shotcrete applied to panels at the Chief Joseph Mine, a research and training facility operated by Montana Tech.
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2/1/2005 - Conference papersWestern mines have had limited choices for standing support. This paper compares the performance characteristics of various support systems.
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2/1/2005 - Conference papersOne focus of ground control research at NIOSH is to incorporate data on weak rock masses into existing design relationships, with an emphasis on updating the span design curve for manned entries and the overbreak curve for longhole entries. Both curves ...
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1/1/2005 - Conference papersIn some underground limestone mines, the dip may exceed 5°. This can cause roof instability, which can be exacerbated by horizontal tectonic stresses. Field studies and numerical model analyses assess the effect of dip in various stress conditions.
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8/1/2004 - Conference papersMines with low-strength roof are much more likely to struggle with roof falls. This paper focuses on two mines in two different seams, conducting statistical analysis to determine which support combinations have proven to be most effective.
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8/1/2004 - Conference papersIn underground coal mines, concrete block stoppings are widely used to control mine ventilation. Researchers developed a numerical model to evaluate the performance of stopping materials and different wall geometries in a controlled environment.
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8/1/2004 - Conference papersA new generation of hydraulic mine support prestressing devices has been developed. This paper examines the performance capabilities of these inflatable prestressing units and the impact they have on the performance of various support systems.
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Content source: National Institute for Occupational Safety and Health, Mining Program