A modified Hoek-Brown failure criterion for anisotropic intact rock

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dc.contributor.author Saroglou, H en
dc.contributor.author Tsiambaos, G en
dc.date.accessioned 2014-03-01T01:27:42Z
dc.date.available 2014-03-01T01:27:42Z
dc.date.issued 2008 en
dc.identifier.issn 1365-1609 en
dc.identifier.uri http://hdl.handle.net/123456789/18550
dc.subject Anisotropy en
dc.subject Failure criteria en
dc.subject Intact rock en
dc.subject Laboratory tests en
dc.subject Metamorphic rocks en
dc.subject Strength en
dc.subject.classification Engineering, Geological en
dc.subject.classification Mining & Mineral Processing en
dc.subject.other Anisotropy en
dc.subject.other Failure (mechanical) en
dc.subject.other Metamorphic rocks en
dc.subject.other Sedimentary rocks en
dc.subject.other Strength of materials en
dc.subject.other Anisotropic intact rock en
dc.subject.other Foliation plane en
dc.subject.other Intact rock en
dc.subject.other Rock mechanics en
dc.subject.other anisotropy en
dc.subject.other failure analysis en
dc.subject.other Hoek-Brown criterion en
dc.subject.other loading en
dc.subject.other metamorphic rock en
dc.subject.other rock mechanics en
dc.subject.other triaxial test en
dc.title A modified Hoek-Brown failure criterion for anisotropic intact rock en
heal.type journalArticle en
heal.identifier.primary 10.1016/j.ijrmms.2007.05.004 en
heal.identifier.secondary http://dx.doi.org/10.1016/j.ijrmms.2007.05.004 en
heal.language English en
heal.publicationDate 2008 en
heal.abstract The Hoek-Brown criterion parameters (sigma(ci), m(i) and s) are significantly influenced by the strength anisotropy of intact rock. In the present study, the criterion was modified by incorporating a new parameter (k(beta)) to account for the effect of strength anisotropy, thus being able to determine the strength of intact anisotropic rock under loading in different orientations of the plane of anisotropy. The range of the parameter (k(beta)) for the rocks tested has been analytically investigated by carrying out triaxial tests, in different orientations of the foliation plane. The proposed modification was studied for metamorphic rocks (gneiss, schist, marble), but could also be applied to other rock types exhibiting "inherent" anisotropy, e.g. sedimentary as well as igneous rocks. The proposed modified criterion is intended for use for prediction of strength of intact rock, but can also be extended to rock masses. (c) 2007 Elsevier Ltd. All rights reserved. en
heal.journalName International Journal of Rock Mechanics and Mining Sciences en
dc.identifier.doi 10.1016/j.ijrmms.2007.05.004 en
dc.identifier.isi ISI:000253723700009 en
dc.identifier.volume 45 en
dc.identifier.issue 2 en
dc.identifier.spage 223 en
dc.identifier.epage 234 en

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