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Keywords: numerical simulation
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Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-057
... field tests (e.g. [8–14]) and numerical simulations (e.g. [12, 14]). Yet, so far there is no investigation on the significant effect of the rock-soil interface on the blast wave propagation in ground. In this paper, a field rock blasting test is performed and the ground vibration is monitored. A finite...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-112
... longitudinal development of the displacements. Case histories and numerical simulations have shown that the magnitude of the displacements can differ almost by an order of magnitude for cases where the strike is parallel and perpendicular to the tunnel axis respectively. The reason is the usually low shear...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-113
... test considering several confining pressure conditions was performed to calculate the stress intensity factor. Based on the numerical simulation results, the modification of the fracture toughness estimation was suggested. Applicability of the suggested estimation was discussed with comparing the mode...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-104
... network of permeable fractures between injection and production wells. Reservoir Characterization heat exchanger area calibration geothermal reservoir Simulation simulator numerical simulation hydraulic fracturing enhanced geothermal reservoir variation operational parameter procedia...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-031
... Simulation diameter BPM Reservoir Characterization axial stress initiation specimen cavity numerical model Upstream Oil & Gas numerical simulation hole diameter granite lotidis fracture hydraulic fracturing stress level physical model primary fracture procedia engineering 191...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-125
... Abstract Roof and rib falls are still a leading cause of injuries in underground coal mines. When numerical simulation method is adopted to study this phenomenon, the influence of regular laminations on strength and size effect should be carefully considered because rock mass of roof is...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-057
...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 simulation on pillar failure patterns T.H. Ma School of Civil Engineering, Dalian University of Technology, Dalian, PR China School of...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-085
... ABSTRACT: The aim of this paper is to study the mechanical behavior of a real pillar located in an abandoned gypsum mine in San Lazzaro di Savena (Bologna, Italy) through numerical simulations using a continuum to discontinuum hybrid approach. Continuum numerical simulations based on a Mohr...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-101
...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 Model experiment on seismic stability of discontinuous rock slope and numerical simulation K. Adachi, N. Iwata & R. Kiyota Chuden Engineering...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-136
... ubiquitous joints of specific orientation embedded in a viscoplastic medium, is then proposed. 3D numerical simulations with the new model are carried out to back analyze the convergence measurements. 1 Introduction During the excavation of Saint-Martin-La-Porte access adit, extreme squeezing conditions...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-181
... Thickness metals & mining Simulation Upstream Oil & Gas surface subsidence physical model simulation block size elsevier ldt granular material numerical simulation geometry thongprapha particle subsidence geomechanics research unit American Society Fluid Dynamics discrete element...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-162
... quiet period reservoir geomechanics electrode Thickness numerical simulation China resistivity anomaly ABSTRACT: Deep-hole resistivity anomaly was observed in Heping geoelectric station before the earthquakes occurred in Heyuan. Different from the resistivity anomaly of most resistivity...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-053
... gas. An overall economy of the operator. metals & mining Upstream Oil & Gas strength bit selection cutting bit design bit body friction resultant force simulator Failure Model material property rotary coal compressive strength continuous miner numerical simulation...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-040
.... Variation of pick geometry, cutting depth or attack angle will result in an alteration of these forces and determine the efficiency of the process (Tockner 1999). reservoir simulation simulia 2012 tensile test discontinuity Upstream Oil & Gas calculation numerical simulation tensile...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-070
... crystalline rocks, natural fractured systems have 3 < < 4 (Davy et al. 2010). In this paper, we first describe the theoretical relations between fracture properties and elastic properties, validated through numerical simulations based on the Discrete Elements Method (DEM) Itasca codes (Itasca 2013). Then...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-046
... (reflection, scattering, etc.) but also development of fracture network is taken into account. The effect of geometrical and loading conditions on fragmentation of given structures are studied. In order to check the validity of the code, the results of numerical simulations are compared with the observations...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-146
.... Numerical simulations were also carried out to compare with the results of the proposed method, even though the low natural frequency is difficult to distinguish. It is possible to conclude that the proposed approach is convenient, effective and accurate. 1. Instructions Japan is a country surrounded by...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-132
... simulation numerical simulation Block System discontinuous deformation analysis Engineering stability chart Deformation analysis friction angle coexist numerical model slab Muralha motion type single block Rock Engineering and Rock Mechanics: Structures in and on Rock Masses Alejano...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-197
... evaluating the probability of failure occurrence. Upstream Oil &amp; Gas area corresponding sandstone failure occurrence back analysis numerical simulation Claystone knowledge management calculation strength parameter construction site excavation case study probability distribution...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-116
... derived model was used to calculate the residual average pillar stress values of crush pillars. The values predicted by this model were compared to numerical simulations. The aim of this paper is to use the models to investigate the impact of pillar width on crush pillar behaviour. 1. Introduction...

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