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This document presents a novel methodology for estimating equivalent Mohr-Coulomb strength parameters that can be used to design supported tunnels in elasto-plastic rock masses modeled using the Hoek-Brown failure criterion. The methodology linearizes the Hoek-Brown criterion by considering the actual stress field within the plastic region around the tunnel, including the influence of tunnel support pressure. It uses a general dimensionless formulation of the Hoek-Brown criterion in the space of normalized

Author

Esteban Jamett

Language

EN