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Keywords: criterion
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Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-088
... government reservoir geomechanics sedimentary rock clastic rock mineral engineering criterion theory mars rock engineering strength consideration reservoir characterization earth environmental science 833 thermo-elasto-plastic evaluation civil engineering geological subdiscipline practice...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-003
... figure 7 metals & mining environmental science 833 criterion diagram practice iop publishing iop conf excel spreadsheet representation reservoir characterization rock engineering theory envelope Mechanics and Rock Engineering, from Theory to Practice IOP Publishing IOP Conf. Series...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-007
... the volumetric strain method (as a strain-based technique) with the improved Griffith and Hoek-Brown criterion (GHB) (as a stress-based method) to determine the crack initiation stress threshold under triaxial loading conditions. Introduction The uniaxial compressive strength (UCS) test is a popular...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-012
... with this parameter are still significant. To be able to explicitly account for the influence of matedness on the peak shear strength of rock joints, both surface roughness and aperture need to be considered. This is possible in Barton and Choubey’s [3] empirical peak shear strength criterion when the JRC parameter...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-013
... Abstract Amongst many mechanical properties, cohesion ( c ) and angle of internal friction ( φ ) are probably the most widely used rock and rock-like material strength design parameters. However, unlike Mohr-Coulomb (MC) failure criterion that assumes cohesion and friction angle are intrinsic...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-002
... is therefore a challenge for the hydropower industry. artificial intelligence risk management engineering upstream oil & gas renewable energy us government rock mechanics stability reassessment concrete dam peak shear strength rock joint eurock 2020 shear strength monolith criterion...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-116
... Oil & Gas GSI system weak rock strength Rock mechanics international journal determination current empirical approach Marino competent rock Engineering Geology rock mass procedia engineering 191 weak rock mass structural geology criterion empirical approach rock mass property...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-081
... to kinetic energy, which is the cause of coal burst. In this paper, the post-peak behavior of pillars and surrounding strata stiffness are reviewed and the criterion developed to investigate the instability of the pillar failures is explained. It is concluded that, as the pillar width to mining height (w/h...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-101
... on monthly migration of reduced centers of seismic energy release within the mine fields, enabled development of a rockburst hazard criterion for individual rock mass areas. The prognostic criterion of the limiting state of a rock mass area is developed based on the ratio of kinematic characteristics...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-150
... isotropy failure criterion in a mechanically consistent way to find the exact location of initial crack. It is shown that the location of the initial crack depends on the transverse isotropy orientation and load configuration. © 2017 The Authors. Published by Elsevier Ltd. Peer-review under responsibility...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-083
... criterion in a limit-equilibrium analysis. They indicated that the factor of safety values of slopes (higher than 45°) obtained from stability tables using the equivalent Mohr-Coulomb parameters are somewhat higher due to the intervals wherein geometric discrepancy of curves from these two methods are high...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-075
... and Prager (1952): they extended the fail- ure criterion of von Mises to take into account the confining pressure in granular media. One of the first criterion including closed yield surfaces (commonly called cap surfaces) with their numerical implemen- tation without smoothing the edges was presented...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-071
... metals & mining strength failure criterion geometry Upstream Oil & Gas criteria rock mass reservoir geomechanics criterion extraction open stope pillar Reservoir Characterization stope crown pillar rock mass behavior excavation Hoek stress state georgieva crown pillar...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-007
... analysis to determine the stresses acting upon sections of the fault, com- bined with the verification of failure making use of Mohr-Coulomb criterion along the fault. Reservoir natural sealing systems seem to be both efficient and mechanically strong and have resisted throughout geological times. However...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-081
... been commercially available for use in engineering practice, provide incorrect results, namely, that no failure occurs to the walls of deep vertical shafts (Sakurai 2015). conventional elasto-plastic analysis criterion elasto-plastic numerical analysis excavation tunnel equilibrium example...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-151
... strength is to utilize a generally accepted strength criterion, such as the well-known triaxial Mohr-Coulomb and Hoek-Brown criteria. Although the conventional triaxial strength criteria perform well in certain circumstances, they suffer from neglecting the simultaneous influence of all three principal...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-126
... reservoir geomechanics Engineering modification anisotropic rock Reservoir Characterization machine learning Upstream Oil & Gas Artificial Intelligence strength brown failure criterion Incorporate Anisotropy rock sample anisotropy strength rc strength rc failure criterion...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-135
... these limitations. The present study focuses on the numerical verification of recently developed failure criterion and implementing it Finite element software ABAQUS to understand their failure mechanism when subjected to uniaxial loading conditions how their existing crack will gets initiated and propagated...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-131
... and the in situ initial stress. Depending on this ratio, Hoek & Marinos (2001), and Hoek (2001) 805 suggest a criterion based on an estimation of the tunnel convergence: We consider that this approach for a tunnel can be extrapolated for a cavern, as a first analysis, but needs to be confirmed by analysis based...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-201
... rock bolts and reduce the slope angle. The options identified were evaluated using the Analytical Hierarchy Process methodology based on a decision matrix involving criterion for suitability, construction, durability, visualization and maintenance. Cost estimation for the selected stabilization...

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