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Abstract This paper presents the results of ongoing research carried out by the author exploring methods to provide a more robust estimate of rock mass properties specifically for use in… Click to show full abstract
Abstract This paper presents the results of ongoing research carried out by the author exploring methods to provide a more robust estimate of rock mass properties specifically for use in tunnel design. Data from various large-scale rock mass failures are introduced, including coal pillars. The damage-initiation, spalling-limit approach is compared to the coal pillar database. New comparisons of estimating the geological strength index (GSI) and relationships to estimate the Hoek–Brown failure criterion parameters, mb, s and a, are presented.
Journal Title: Journal of Rock Mechanics and Geotechnical Engineering
Year Published: 2019
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