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Accession Number PB2013-102224
Title Empirical Approaches for Weak Rock Masses.
Publication Date 2012
Media Count 10p
Personal Author L. Martin R. Pakalnis T. Brady
Abstract A major focus of ground control research presently being conducted by the Spokane Research Laboratory of the National Institute for Occupational Safety and Health (NIOSH) is to incorporate weak rock masses (such as are associated with operations in the Carlin Trend in Nevada) into existing design relationships. The original database that led to most of the empirical design relationships presently employed in hard-rock mining was derived from fair-to-good-quality rock. In this study, the relationship between weak rock quality and opening design (nonentry/entry methods) is being investigated. The common factor in all mines is a weak back or wall. This work attempts to provide tools that will enable a mine operator to make economic decisions that will also ensure a safe working environment.
Keywords Cost effectiveness
Ground control research
Hard rock mining
Mine safety
Rock masses
Underground mining
Weak rock masses

Source Agency National Institute for Occupational Safety and Health
NTIS Subject Category 48A - Mineral Industries
48F - Geology & Geophysics
50D - Soil & Rock Mechanics
Corporate Author National Inst. for Occupational Safety and Health, Spokane, WA. Spokane Research Lab.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1306
Contract Number N/A

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