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Keywords: evolution
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Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-153
... Abstract Climatic actions are one of the factors controlling the evolution of slopes, this paper is devoted to a specific effect, relatively little studied, related to the effect of climate-driven temperature changes on rock massif deformation. The particularity of the study is to focus...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-164
... subdiscipline geology reservoir geomechanics reinforcement geologist europe government reservoir characterization deformation rock type metals & mining rock engineering evolution rockmass bonding displacement practice iop publishing iop conf theory tunnel environmental science 833...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-187
... direction)-positioned wellbores within the pay zone, where the spacing between wells was changed to 50 m and 100 m. Progressive fracture propagation and the evolution of stress shadow with sequential multi-stage fracturing were monitored. A marked stress shadow was observed for closer well spacings under...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-087
... to perform an acoustic survey at repetitive intervals (every 10 seconds) during a hydraulic fracture growth experiment. The analysis of the evolution of the active acoustic monitoring changes allow to image the evolution of the fracture front (via an inversion of the active acoustic waves diffracted...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-089
... (DIC) data to describe the evolution of damage and cracking in response to tensile loading during multi-stage relaxation experiments on inverted single edge notch bending (iSENB) specimens. The source locations of the AEs correspond to a process zone ahead and around the notch indicating the evolution...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-098
... Abstract In this work, a thermo-mechanical (TM) numerical approach is presented and applied to investigate the stress-strain evolution of an alpine rock-slope located in the Central Italian Alps (Sondrio Province). Along the "Cimaganda" slope a massive rockslide event occurred around 900 A.D...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-088
... engineering 191 time interval loading crack initiation evolution Visualization Abstract The article deals with the use of computed X-ray radiography to visualize the development of the fracture process zone in the rock samples. For radiographic observations during the three-point bending loading...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-094
..., the homogenized parameters of the intact shale material are determined. On the other hand, based on the X-ray microtomography imaging results, the geometry of the shale structure at meso scale is investigated. The studies focus on observation of the evolution of 3D crack network in the samples of shale under...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-072
...-Malabry, France J. Sulem & S. Ghabezloo Université Paris-Est, Laboratoire Navier/CERMES, Ecole des Ponts ParisTech, IFSTTAR, CNRS, Marne la Vallée, France A. Noiret & G. Armand Andra R&D, Meuse/Haute-Marne Underground Research Laboratory, Bure, France ABSTRACT: The pore pressure evolution induced...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-069
...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 Modeling permeability evolution under triaxial compression deformation of Shirahama sandstone D. Asahina, M. Takahashi, M. Takeda & H. Tsukamoto...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-110
... into account the conditions of the pillars, the state of the rock mass Figure 1. Evolution of pillar strength (Rp)-uniaxial com- pression strength (Rc) against W/H ratio according to differ- ent empirical approaches (see table 1). fracturing.They proposed a sizing equation from thou- sands of stable pillars...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-123
... with grain crushing and bond damage. The main purpose of the model is to provide a tool that, based on simple information about the evolving microstructure of a granular rock, can be able to quantify the evolution of the strength of sedimentary rocks, as well as the alterations of their elastic domain. 1...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-110
... material geoscience Temperature Effect permeability Reservoir Surveillance Cox saturation dependent thermal conductivity thermal conductivity Fluid Dynamics Germany MPa evolution dresden ABSTRACT: This paper presents coupled thermo-hydro-mechanical (THM) simulations of the laboratory...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-147
... role concerning the deformation behavior. Especially, the spatial distribution and geometry of the rock slide toe are considered as key factors, in particular with regard to the ability of "self-stabilization". In this study, the impact of the rock slide geometry on the evolution of the stability...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-142
... first, Then using rock density , Young s modulus becomes: 3 RESULTS 3.1 Geometric properties: ball radius and radius ratio Figure 5 shows the evolution of both static and dynamic properties when the ball size varies. The first observation is that dynamic properties are always higher than static...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-139
..., some conclusions are included in Section 5. Upstream Oil & Gas Alejano axial stress-strain evolution stress-strain curve shear band prediction arzúa experimental data Vardoulakis dilation model dilatancy angle granite Confinement Pressure mechanics Reservoir Characterization...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-157
... we compared the evolution of two types of precursory indicators over time: pre- cursory rockfalls and pre-failure deformation. Our study was based on a multi-temporal comparison of LiDAR data using a Terrestrial Laser Scanner (TLS) Ilris 3D (Optech). The analysis was performed in a pilot study area...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-214
... in the 1296 Figure 2. SSM on sample P2-045-S6 at eff = 12 MPa ( c = 15 MPa, Pp = 3 MPa). Evolution of pore pressure (Pu, upstream; Pd, downstream) and in/out (Vin/Vout) cumulative volumes. Figure 3. PDM on sample P2-045-S6 at eff = 17 MPa ( c = 30 MPa, Pp = 13 MPa). Evolution of pore pressure (Pu, upstream...

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