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Keywords: rock joint
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Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-152
..., 2011; ASTM, 2012). However, due to the cost of such tests, direct shear testing in the laboratory, according to the standard procedures developed for testing rock joints, is frequently preferred for estimating shear strength of rock-concrete interfaces. 13th International Congress of Rock Mechanics...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-226
... natural language smooth joint frictional angle asperity Artificial Intelligence hoxha rock joint Wellbore Design 13th international congress Michel Montreal Reservoir Characterization Upstream Oil & Gas morphology dependent behavior coefficient al mukhtar shear strength...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-187
... to have low values. KEYWORDS In situ shear test, Shear strength, Shear apparatus, Rock joint, Roughness, Friction angle, Acoustic emission INTRODUCTION Failure behavior of a discontinuous rock mass is mostly controlled by discontinuities. Therefore, a precise stability analysis of geotechnical projects...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-335
... Drillstem Testing velocity friction angle Strength Characteristic peak shear strength Upstream Oil & Gas formula drillstem/well testing expression total friction angle rock joint shear strength friction angle 13th international congress coefficient shear deformation velocity...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-376
... Reservoir Characterization reservoir geomechanics Upstream Oil & Gas Thickness rock joint contact area ratio artificial rough rock joint 13th international congress strain gauge output bar rock mechanics isrm13 transmission coefficient specimen joint thickness wave propagation...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-140
... 13th international congress haque shear displacement shear behaviour Upstream Oil & Gas concrete rock joint constant normal stiffness shear strength model drilling operation rock joint dilation peak shear stress Reservoir Characterization normal stress laboratory regular rock...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-162
... Abstract In this paper, an anisotropic shear behavior of rock joints is investigated under constant normal load condition (CNL). The natural rock joint roughness is transferred to artificial rock samples using room temperature vulcanizing (RTV) silicon rubber. Artificial cylindrical rock joint...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-194
... Reservoir Characterization displacement 13th international congress loading test shear strength Upstream Oil & Gas rock mechanics isrm13 rock joint tiny window loading condition cyclic loading condition shear displacement peak shear strength joint surface shear mechanism load...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-144
... ABSTRACT The shear behavior of rock joints greatly influence by the presence of asperity and the normal stiffness of the surrounding rock mass. Correct evaluation of the shear strength of rock joints plays an important role in the design of deep underground openings, stability analysis of rock...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-158
... cohesion and friction parameters. machine learning Upstream Oil & Gas criterion joint model Reservoir Characterization strength Thickness mechanism laboratory experiment reservoir simulation Barton elasticity rock joint Artificial Intelligence experimental data shear strength...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-155
...Harmonising Rock Engineering and the Environment Qian & Zhou (eds) © 2012 Taylor & Francis Group, London, ISBN 978-0-415-80444-8 Development of experimental technique on seismic response of rock joints W. Wu, J.B. Zhu, Q.B. Zhang, J.F. Mathier & J.P. Dudt Laboratoire de mécanique des roches (LMR...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-299
... and operation of the Pilot Plant existing at Daejeon, Korea. The results obtained from the study with regards to the formation of the ice-ring, showed that the freezing temperature of the water flowing through rock joints is affected by the latent heat during freezing, aperture of joints and the flow rate...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-116
... on the stiffness of rock mass. Reliable prediction of shear behavior of rock joints for both conditions has been an important issue in rock engineering field. In this study, an empirical model of shear behavior of rock joints was proposed from direct shear tests using a servo-controlled shear testing machine...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-052
... propagation propagation displacement multiple wave reflection rock mass equation medium model rock joint jointed rock mass interface different analytical model Harmonising Rock Engineering and the Environment Qian & Zhou (eds) © 2012 Taylor & Francis Group, London, ISBN 978-0-415-80444-8...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-077
... ABSTRACT A numerical method to determine the contact areas of a rock joint under normal and shear loads is proposed. The method requires only three dimensional surface coordinates at the initial stage before shearing, while in other conventional methods disparate materials are inserted between...
Proceedings Papers

Paper presented at the 11th ISRM Congress, July 9–13, 2007
Paper Number: ISRM-11CONGRESS-2007-049
... behave in terms of settlement, stability and excavation in engineering projects and for the through-flow and storage of liquids and gases. However the nature of and, in particular, the origin of rock joints, faults and other naturally occurring structural discontinuities or fractures are dealt...
Proceedings Papers

Paper presented at the 11th ISRM Congress, July 9–13, 2007
Paper Number: ISRM-11CONGRESS-2007-054
... ABSTRACT The present article discusses the effect of the change in the continuity and area of the rock bridge on the complete failure behavior of the open rock joints. Forty five models were prepared using plaster with dimensions of 15 cm × 15 cm × 15 cm. The models consisted of 15 different...
Proceedings Papers

Paper presented at the 11th ISRM Congress, July 9–13, 2007
Paper Number: ISRM-11CONGRESS-2007-097
... Wellbore Design normal stress MPa Reservoir Characterization displacement different normal stress shear displacement shear strength Upstream Oil & Gas rock joint procedure shear test stress path rock joint shear test joint sample reservoir geomechanics roughness shear force...
Proceedings Papers

Paper presented at the 11th ISRM Congress, July 9–13, 2007
Paper Number: ISRM-11CONGRESS-2007-083
... ABSTRACT The purpose of this paper is to clarify the mechanism of flow in a rock joint using a developed flow simulation method taking into account the aperture distribution of a rock joint. Shear-flow coupling test has been conducted under constant normal stress condition after...
Proceedings Papers

Paper presented at the 11th ISRM Congress, July 9–13, 2007
Paper Number: ISRM-11CONGRESS-2007-108
... in shear using the Distinct Element Method as incorporated in the model PFC2D. The results from Cundall s numerical experiments corresponded well to the Barton-Bandis model for 100mm long rock joints. The authors have extended this work to investigate the effects of scale on defect shear strength. 3.1...

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