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Keywords: Simulation
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Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-059
... consisting of sprayed concrete and a waterproof sprayed membrane. Numerical distinct element modelling in 3DEC is used to simulate the groundwater pressure. The results are compared to existing groundwater pressure measurements performed behind the lining. The construction damage zone (CDZ) is included in...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-004
... Engineering at the University of Leoben has undertaken intensive research into tunnel boring machines (TBM). One focus is the interaction between cutterhead and rock mass, with the interaction being investigated theoretically, through simulations and in laboratory and in-situ tests. The current paper gives an...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-031
... Abstract In this paper, a numerical investigation of uniaxial compressive tests on prismatic specimens with single cylindrical pre-existing cavities in brittle rock is performed. To investigate the rock fracture around cavities and to assess the potential of the numerical model to simulate...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-045
... be successful. social responsibility isotherm boundary renewable energy borehole oosterbaan granite underground thermal energy storage sustainability Helsinki conductivity storage sustainable development thermal conductivity University water store Simulation thermal property...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-056
... dissipation, kinetic energy and damping dissipation. The proposed energetic approach is verified by computing the energy balance of the system during simulations of compression, tension and shear tests. 1. Introduction Rockburst is a sudden and violent phenomenon resulting from high concentration of...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-052
.... We conducted distinct element method-based numerical simulations to explore the behavior of hydraulic fracture propagation and containment under varying in-situ stress conditions and fluid injection rates. The results revealed that even a small contrast of minor principal stress between pay-zone and...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-143
... bedrock-hosted diffusive hot storage heat exchanger prototype fluid modeling production logging Discharge diffusive hot storage geothermal exchanger geostock exchanger production monitoring Upstream Oil & Gas Simulation heat transfer procedia engineering 191 ground heat storage storage...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-138
... Abstract Discontinuum and continuum modelling approaches were used to simulate the single- and multi-stage hydraulic fracturing. Twodimensional discontinuum modelling of single-stage fracturing revealed a marked modification of the stress field in the vicinity of the fracture (stress shadow...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-151
... & mining Monte Carlo simulation operational safety Simulation geotechnical hazard analysis discrete fracture network mapping highwall mining operation trace length highwall hydraulic fracturing elmouttie dfn realisation shivakumar karekal procedia engineering 191 bedding marc elmouttie...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-073
... methods in the evaluation of slope stability. To complex rock and soil slopes, numerical approaches such as finite element and finite difference methods may be more suitable due to their flexibility when applied to simulate in situ stresses, loading condition, and multi-field interactions. Even though...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-069
... into this problem, we use the combined finite-discrete element method to examine how the mean of local stress tensors is related to the far-field stress. We have conducted a series of stress simulations on a model of a fractured rock mass subjected to various boundary loadings, and calculated the...
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
... Abstract The current study presents a numerical modeling approach for three-dimensional simulation of hydro-shearing in jointed rocks for the generation of a man-made, multi-fracture heat exchanger in Hot Dry Rock (HDR) Geothermal reservoir. Various literatures have suggested the presence of...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-047
...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 Effect of element surface roughness on brittle failure in hard rocks by DEM simulation S. Nakashima, T. Sakamoto & N. Shimizu Yamaguchi University...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-002
... the macroscopic stress- strain relations, the damage evolution and the failure behavior. Numerical simulations at the grain size level can help to understand the complex behavior of rocks and to detect, which components have significant effect on the overall behavior. This article describes research...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-077
... code in Scilab is written to solve these equations and numerical simulations with this code are performed in several situations. 1 INTRODUCTION Drillstring vibration, especially in the form of torsional stick-slip motions, axial bit-bounce motions, and lateral whirl motions result in failure of...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-003
... stress at a point…"), Love (1944). Upstream Oil & Gas displacement rock mass behavior debernardi Simulation Artificial Intelligence three-dimensional model Politecnico knowledge management numerical method convergence excavation application landslide rock mass construction...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-068
... Characterization Simulation poeck coal burst occurrence coal rock interface joint property boundary condition loading interface Engineering geological structure different computing time coal burst phenomenon metals & mining strain energy layout kinetic energy Rock Mechanics and Rock...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-009
... Characterization havaej characterisation application metals & mining Simulation rock slope rock mass University stead Upstream Oil & Gas mechanism slope failure slope stability Pit Slope reservoir geomechanics Proc open pit slope brittle fracture failure mechanism Rock Mechanics and...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-079
.... The simulation results for the energy released during excavation and rock failure are validated by making comparisons against known analytical solutions.The energy release concepts forwarded in this study are explained through application of the methodologies to a large coal mine failure that...

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