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Practical use of the ubiquitous-joint constitutive model for the simulation of anisotropic rock masses
journal contribution
posted on 2017-06-01, 00:00 authored by Bre-Anne SainsburyBre-Anne Sainsbury, D P SainsburyAnisotropic rock masses, the behavior of which is dominated by closely spaced planes of weakness, present particular difficulties in rock engineering analyses. The orientation of discontinuities relative to an excavation face has a significant influence on the behavioral response. At the present time, discontinuum modeling techniques provide the most rigorous analyses of the deformation and failure processes of anisotropic rock masses. However, due to their computational efficiency continuum analyses are routinely used to represent laminated materials through the implementation of a Ubiquitous-Joint model. The problem with Ubiquitous-Joint models is that they do not consider the effects of joint spacing, length and stiffness. As such, without an understanding of the limitations of the modeling approach and detailed calibration of the material response, simulation results can be misleading. This paper provides a framework to select and validate ubiquitous-joint constitutive properties.
History
Journal
Rock mechanics and rock engineeringVolume
50Issue
6Pagination
1507 - 1528Publisher
Springer ViennaLocation
[Berlin, Germany]Publisher DOI
ISSN
0723-2632Language
engPublication classification
C Journal article; C1.1 Refereed article in a scholarly journalCopyright notice
2017, Springer-Verlag Wien.Usage metrics
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