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Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-112
... environmental science 833 reservoir simulator iteration reservoir geomechanics practice iop publishing iop conf italy government implementation saturation geological subdiscipline rock engineering coupling reservoir characterization compressibility boundary Mechanics and Rock Engineering, from...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-119
... inactive reserves were scientifically substantiated. The boundaries of maximal development of underground mining were determined. The stability of overlying rocks and open pit walls is maintained by forming an advance of overlying sublevels relative underlying ones under 45° angle and providing...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-136
... boundary limitation Mechanics and Rock Engineering, from Theory to Practice IOP Publishing IOP Conf. Series: Earth and Environmental Science 833 (2021) 012136 doi:10.1088/1755-1315/833/1/012136 An approach to estimate coal pillar strength A S Sharipov and A C Adoko School of Mining & Geosciences...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-040
... mathematical symbols Throughout this paper, the conventional symbols are used: are blocks which can be 2D or 3D, finite or infinite blocks. are the boundaries of block is the set of inner points: and = = are points or vectors. is an edge which is from to = , is a vector. = , is a vector from (0, 0, 0...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-044
... Boundary conditions The boundary conditions for the model were specified based on the in-situ rock mass stress state measurements, laboratory tests of rock samples for strength and deformation properties, and geological and surveying documentation. The in-situ rock mass stress state measurements were...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-042
... mining reaches the rock mass under the open-pit. This conclusion suggests that the protecting pillars' boundaries can be revised for the purpose of the further decrease. This will increase volume of reserves mined and efficiency of underground mining. 1. Introduction The Niorkpahk and Oleniy Ruchey...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-045
.... 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 procedia engineering 191...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-064
... ABSTRACT: This paper attempts to provide a theoretical framework for the determination of the stress state induced in a hollow cylinder (ring) under Hertzian compressions on its outer boundary. The solution is obtained using Airy stress functions, Michell-Fourier series expansions and Fourier...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-118
... investigation Plaster hydraulic fracturing simulation result hole diameter BPM numerical model ahsc Simulation diameter boundary cavity fracture axial stress initiation shear crack granite compression ABSTRACT: In this paper, a numerical investigation is performed for the size and stress...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-108
... the code to its boundaries, making thus an ideal application to test and benchmark the implementation. knowledge management steady state Upstream Oil &amp; Gas flow in porous media Engineering gallery Netherlands canister radioactive waste storage application fully-coupled thermo-hydro...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-099
... Upstream Oil &amp; Gas structural geology transition zone relaxation salt dome temperature anomaly field stress boundary perturbation Pore Pressure Perturbation Reservoir Characterization Simulation differential stress exploration geomecon gmbh sediment salt structure...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-120
... Gaussian beam calculation phase boundary microstructural model Reservoir Characterization Simulation microwave treatment rock model Upstream Oil &amp; Gas microwave irradiation boundary quartz electric field permittivity absorption principal stress simulation chain...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-105
... proceedings excavation EDZ Switzerland reduction microtunnel Lisjak boundary opalinus clay deformation hybrid finite-discrete element method finite-discrete element method ABSTRACT: This study aims at strengthening the understanding of the mechanical sealing process of the excavation damaged...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-141
... strength axial force cable bolt performance numerical model structural geology equilibrium boundary excavation UDEC Upstream Oil &amp; Gas model 2 block size rock mass Strain Capacity utilisation deformation reservoir geomechanics model 1 borehole jointed rock mass support system...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-122
... emission creep constitutive model Abel dashpot fractional derivative approach Rock mechanics ae-based fractional derivative model ae-based fractional derivative approach bedded salt rock unsteady creep dashpot constitutive model boundary salt rock Zhou ABSTRACT: Energy storage and CO2...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-142
.... Upstream Oil &amp; Gas diversion tunnel concrete lining kPa tunnel new lining right bank structural interface peak residual peak Reservoir Characterization tailrace tunnel characteristic cofferdam rogun dam stress analysis boundary new concrete lining left bank lining rock mass...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-146
... boundaries with normal and shear stiffness. It was found that the stiffness of weak contacts has the great effect on the natural frequency of the lining. Numerical simulations were also carried out to compare with the results of the proposed method, even though the low natural frequency is difficult...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-164
... and pure slip boundary condition A.Z. Lu, N. Zhang, H.Y. Chen & Y. Qin Institute of Hydroelectric and Geotechnical Engineering, North China Electric Power University, Beijing, China L.Q. Zhang Key Laboratory of Engineering Geomechanics, Institute of Geology and Geophysics, Chinese Academy of Sciences...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-129
.... The fluid flow governed by Navier-Stokes (N-S) equation and particle movement were solved by finite difference method and DEM, respectively. The interaction between fluid and par- ticles was evaluated using immersed boundary (IB) method. In the simulations, to investigate the effect of surface roughness...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-166
.... The numerical solution and closed-form solution are obtained for plastic softening and residual zones, respectively. The critical support pressures for the plastic softening and residual zones are investigated. The displacements at the opening boundary, radii of plastic softening and residual zones...