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This document presents a procedure for determining rock-type specific values for the brittle Hoek-Brown parameter (s) used in the Hoek-Brown failure criterion for rock mass modeling. The Hoek-Brown criterion is widely used but the s parameter was previously treated as constant for all rock masses, which does not accurately predict failure in some rock types. The presented procedure determines s values semi-empirically based on rock texture, mineral composition, and microstructure. It also differentiates bet

Author

Mac Condorpusa Cordova

Language

EN