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Keywords: failure plane
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Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-109
... possible failure plane failure plane tunnel ground transportation srf 1 safety factor railway tunnel finite element method rail transportation stability analysis critical state rock mass deformation Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al. (Eds) © 2016...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-051
... being the different shapes of failure of the samples obtained both theoretically and empirically. These shapes are mainly the following ones: In uniaxial compression nearly vertical failure planes; In triaxial compression, failure planes forming angles of 45+ψ/2 with the major principal stress, being ψ...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-150
... bolts and concrete piers for underpinning unstable blocks. XRD analysis showed a significant amount of swelling minerals on the failure plane. Results from Odometers test corresponded to a friction angle between 10 and 15 degrees. The final support included 25 rock anchors each on 200 tons and removal...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2009, October 29–31, 2009
Paper Number: ISRM-EUROCK-2009-134
... after geological mapping and observation of support performance. Reservoir Characterization reinforcement design mapping failure plane geologic modeling rail transportation rock bolt Stockholm planar failure geological modeling ground transportation high speed rail line bedrock rock...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2002, November 25–27, 2002
Paper Number: ISRM-EUROCK-2002-078
..., it is confirmed that under constant and uniform normal confining pressure, the shear strength of plug-installed rock models is about twice that of no-plug rock models and that the strength does not depend upon the location of the plug. It is also confirmed that a failure plane can appear in the area on which...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2002, November 25–27, 2002
Paper Number: ISRM-EUROCK-2002-017
... by the stresses on the failure plane, is stablished depending on dilatancy. The values proposed by Hoek and Brown (1977) are adopted for the angle of dilatancy. These hypotheses are applied to some simplified cases for volcanic materials, and different charts are obtained that associate the slope height and slope...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2002, November 25–27, 2002
Paper Number: ISRM-EUROCK-2002-067
... of radial confinement and locations of acoustic emission events were measured during the pull-out tests. After the tests, the failure planes generated inside the steel pipe specimen were visualized by means of X-ray CT technology in two-dimensional slices and in three-dimensional images. Based...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2002, November 25–27, 2002
Paper Number: ISRM-EUROCK-2002-097
... rock mass Reservoir Characterization imbrication particle evaluation Madrid Upstream Oil & Gas non-linear strength law Olalla isla canaria reservoir geomechanics criterion Serrano failure plane volcanic material volcanic agglomerate triaxial test strength law Hoek EVALUATION...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 96, September 2–5, 1996
Paper Number: ISRM-EUROCK-1996-022
... Characterization Upstream Oil & Gas variation criterion equation failure plane criteria state equation failure envelope compression crack propagation propagation rock type equation principal stress Eurock '96, Barfa (ed.)lC) 1996 Balkema, Rotterdam. ISBN 905410843 6 A proposed criterion...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 96, September 2–5, 1996
Paper Number: ISRM-EUROCK-1996-078
... metals & mining geomechanical scheme reservoir geomechanics strength Wellbore Design stability condition joint plane coc 6 upper part failure plane plane Vietnam rock layer Reservoir Characterization Upstream Oil & Gas geological structure stability rock mass algebraic...

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