Computational Technology Resources - CCP

S.K. Sharan, "Computation of the Equivalent Mohr-Coulomb Parameters for Hoek-Brown Rock", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 254, 2015. doi:10.4203/ccp.108.254

Keywords: Hoek-Brown failure criterion, Mohr-Coulomb parameters, finite element, elastoplastic analysis, underground openings, jointed rock mass.

Summary

In this paper, a novel general method is proposed for the computation of the equivalent Mohr-Coulomb (EM-C) parameters to conduct the elastoplastic analysis of rock mass governed by the generalized Hoek-Brown (GH-B) failure criterion. The proposed method is based on an iterative procedure. The least-squares regression is used for the linearization of the non-linear yield function to compute the new values of the EM-C parameters. By analysing stresses and displacements around underground openings using analytical and finite element methods, it is shown that the proposed method is convergent, efficient and effective. The principal advantages of the proposed method are that it is quite general, the computational difficulties encountered in the implementation of the GH-B failure criterion may be circumvented and a general purpose finite element software that does not have the GH-B failure criterion as a material option may be used to analyse a jointed rock mass.

purchase the full-text of this paper (price £20)

go to the previous paper
go to the next paper
return to the table of contents
return to the book description
purchase this book (price £75 +P&P)

	Computational & Technology Resources an online resource for computational, engineering & technology publications
	not logged in - login
Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 108 PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: J. Kruis, Y. Tsompanakis and B.H.V. Topping Paper 254 Computation of the Equivalent Mohr-Coulomb Parameters for Hoek-Brown Rock S.K. Sharan Bharti School of Engineering, Laurentian University, Sudbury, Canada doi:10.4203/ccp.108.254 purchase the full-text of this paper Full Bibliographic Reference for this paper S.K. Sharan, "Computation of the Equivalent Mohr-Coulomb Parameters for Hoek-Brown Rock", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 254, 2015. doi:10.4203/ccp.108.254 Keywords: Hoek-Brown failure criterion, Mohr-Coulomb parameters, finite element, elastoplastic analysis, underground openings, jointed rock mass. Summary In this paper, a novel general method is proposed for the computation of the equivalent Mohr-Coulomb (EM-C) parameters to conduct the elastoplastic analysis of rock mass governed by the generalized Hoek-Brown (GH-B) failure criterion. The proposed method is based on an iterative procedure. The least-squares regression is used for the linearization of the non-linear yield function to compute the new values of the EM-C parameters. By analysing stresses and displacements around underground openings using analytical and finite element methods, it is shown that the proposed method is convergent, efficient and effective. The principal advantages of the proposed method are that it is quite general, the computational difficulties encountered in the implementation of the GH-B failure criterion may be circumvented and a general purpose finite element software that does not have the GH-B failure criterion as a material option may be used to analyse a jointed rock mass. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £75 +P&P)
Back to top	©Civil-Comp Limited 2023 - terms & conditions