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A 2D coupled finite element and boundary element scheme to simulate the elastic behaviour of jointed rocks
Author(s) -
Carter J. P.,
Xiao B.
Publication year - 1994
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.1610180104
Subject(s) - rock mass classification , finite element method , anisotropy , boundary element method , geology , boundary (topology) , boundary knot method , extended finite element method , boundary value problem , discrete element method , geotechnical engineering , geomechanics , geometry , structural engineering , mechanics , mathematical analysis , mathematics , engineering , physics , quantum mechanics
Abstract In this paper a coupled finite and boundary element formulation is developed for the analysis of excavation in jointed rock. The presence of joints in the rock mass has been included implicitly by treating it as an appropriate anisotropic elastic continuum. The boundary element formulation for an anisotropic medium is briefly discussed. Good agreement has been found between numerical and analytical solutions for several example problems, demonstrating the accuracy of the present formulation. Numerical solutions are also presented for the problems of a deep circular tunnel and a basement excavated in a variety of jointed rock masses.