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Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-024
... structural geology strength specimen reservoir geomechanics maximum value reservoir characterization upstream oil & gas variation strength criteria drilling operation orientation plane tectonic fabric anisotropy weakness plane tectonised rockmass deformation kpa triaxial...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-033
... reservoir characterization upstream oil & gas support design structural geology rockmass metals & mining strength weakness plane rock strength reservoir geomechanics rock mechanics bedding sandstone stability tunnel diederich plane excavation high horizontal stress...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-035
.... Introduction There hardly exists a rock mass without three or more different discontinuity sets. Hence, it is of crucial importance in rock engineering to have a profound knowledge about the discontinuity network within a rock mass, since present discontinuities, like bedding planes, joints or cracks...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-037
.... In this paper we consider transverse crack formation on borehole wall in a given plane when the fracture initiation occurs due to an indenter impression located between two inflatable packers. During indentation fracturing, fluid under high pressure is supplied and this contributes to crack propagation...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-115
... distribution of the internal fabric of rocks is mostly disturbed by the presence of planes of weakness, such as discontinuities, microstructures or any mechanical fractures. Besides, the internal fabric of the rock in many cases presents a predisposition to mechanical anisotropy [1]. Metamorphic rocks were...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-051
... the actual occurrence of instability toppling phenomena in rock slopes. 1.1. Brief description of the quarry and mined stone Artificial Intelligence Alejano weakness plane procedia engineering 191 metals & mining orientation quarry representation Reservoir Characterization hardway...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-128
... strength: the angle enclosed by the plane of the sample surface and the shear plane, in the direction of shear. 3D surface roughness measurements were carried out on 18 Opalinus Claystone sample (Switzerland) and 6 on granitic rock sample (Hungary) surfaces. An interval of angle was analyzed...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-016
... ABSTRACT: Granite is well known as an anisotropic rock. It usually has three planes normal to each other being called the rift, grain and hardway, and these planes have different physical properties and strengths. In this study, Pocheon granite in Korean was selected to investigate its elastic...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-106
... plane dynamic analysis discontinuity southern italy numerical modeling fracture kinematic mechanism limestone calcarenite 0 Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al. (Eds) © 2016 Taylor & Francis Group, London, ISBN 978-1-138-03265-1 Numerical modeling...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-091
... Oil & Gas wedge Artificial Intelligence outcrop plane discontinuity surface intersection point discontinuity rock mass Visualization kde metals & mining Kernel Density Estimation Intersection Line rock slope application instability engineering structure Modeling study...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-099
... angle, sliding mass geometry, and spacing between foliation planes, indicate that increasing the foliation dip angle and the thickness of sliding mass increases the depth of slope deformation. Foliation dip angle is the most critical factor that controls the deformation of slate, slope length has...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-066
... ABSTRACT: The effects of strength anisotropy of rock masses on bearing capacity of shallow foundations are the focus of this paper. The source of the strength anisotropy can be attributed to many factors and the motivation of this study is to concentrate on the effects of planes of weakness...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-176
... clouds detecting the number of discontinuity sets, classifying each point with its discontinuity set and plane equation and calculating their normal spacing; and SMRTool calculates the geo-mechanical quality of a rock slope by means of the Slope Mass Rating (SMR) index. In order to illustrate the use...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-183
... network and are prone to human bias. To increase the reliability of discontinuity models, digital mapping techniques using data from remote sensing, like Close-Range Terrestrial Digital Photogrammetry, were developed. This paper focuses on the plane identification within 3-D point clouds using MATLAB®...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-185
... Upstream Oil & Gas information rock mass property dam foundation borehole evaluation Reservoir Characterization Rock mechanics rock mass deformability rock cover Artificial Intelligence lithology frictional component spatial variation plane intelligent tool ABSTRACT...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-155
... for drilling. The catalogue of geothermal systems in the Great Basin, Nevada, demonstrates that not the centre of fault planes is the setting for high geothermal activity. Instead, step-over regions, fault intersections and fault tips belong to the favourable structural settings of geothermal fields...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-152
... equation of state deviatoric strain characteristic length fluid modeling renewable energy displacement criteria Reservoir Characterization plastic deviatoric strain cavern foliation layer Upstream Oil & Gas prediction strength laboratory data plane excavation deformation...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-176
... terminations at intersections with pre-existing fractures and for more general fracture shapes (Geier et al. 1989 and Dershowitz et al. 1998). Veneziano (1978) introduced a method for adaptation of the concept of Poisson plane fractures to bounded fractures (Veneziano model). Dershowitz (1984) remedied...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-111
... bedding plane" effect. We tested plugs whose long axes (parallel to σ1) were oriented with varying angles to bedding, to find out at which angle between lamination and σ1 these lithologies are weakest and strongest, respectively. We observed weak bedding planes in claystone, but not in marlstone...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-245
... determine weakness planes that often rule the potential induced failure mechanism. Rock blocks are formed and they can move along discontinuities depending on their geometrical and physical mechanical features. Consequently, the occurrence of discontinuities must be analyzed in a quantitative way...

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