Analysis of tunnel support requirements using the convergence-confinement method and the hoek-brown rock failure criterion

Research output: Contribution to conferencePaper

Abstract

This paper discusses the application of the Convergence-Confinement method of tunnel design to rock masses that are assumed to obey the Hoek-Brown failure criterion. The basis of the Convergence-Confinement method and the interpretation of the three basic components of the method the Longitudinal Deformation Profile (LDP), the Ground Reaction Curve (GRC) and the Support Characteristic Curve (SCC) are presented. A closed form solution for the construction of the GRC considering a general form of the Hoek-Brown failure criterion for rock is presented. An example illustrating the application of the solution to the construction of the GRC using the closed-form solution is discussed and results compared with those from the classical Hoek-Brown criterion as implemented in the finite difference code FLAC3D

Original languageEnglish (US)
StatePublished - Jan 1 2018
Externally publishedYes
EventISRM International Symposium 2000, IS 2000 - Melbourne, Australia
Duration: Nov 19 2000Nov 24 2000

Other

OtherISRM International Symposium 2000, IS 2000
CountryAustralia
CityMelbourne
Period11/19/0011/24/00

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  • Cite this

    Carranza-Torres, C. M., & Fairhurst, C. (2018). Analysis of tunnel support requirements using the convergence-confinement method and the hoek-brown rock failure criterion. Paper presented at ISRM International Symposium 2000, IS 2000, Melbourne, Australia.