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- Research methods and measures:
- In situ rock strength measurement
- Document types:
- Conference papers
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Results 1 - 2 of 2
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7/1/2008 - Conference papersThis paper describes research conducted by NIOSH aimed at developing a correlation between sonic travel time logging of exploration boreholes and estimates of coal mine roof rock strength.
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8/1/2004 - Conference papersAverage UCS may differ between coreholes but not be statistically significant, and widely spaced coreholes may be able to identify valid spatial trends in rock strength. The paper describes NIOSH's extensive investigation into these issues.
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Content source: National Institute for Occupational Safety and Health, Mining Program