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Keywords: cohesion
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Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-016
... cause ore pass hang-ups were evaluated, and the effect of the cross-sectional shapes and the possibility of the ore pass hang-ups were discussed. Results showed that cohesion exerted a strong influence on the occurrence of hang-ups. Moreover, the conditions under which hang-ups consistently occur were...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-056
... based on cohesion weakening and frictional strengthening (CWFS) with increasing inelastic deviatoric strain. While deterministic analyses of this type, based on conservative estimate of input parameters, are simple ways of dealing with uncertainty, they are not capable to capture the variability of the...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-205
... experiments are also numerically modeled in FLAC3D and attempt was made to capture the post peak response. Simulation were done by moderating various parameters namely cohesion, friction angle and dilation. Mohr-Coulomb Strain Softening model is used as the decay of strength parameters with respect to the...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-122
...) criterion by appealing to the assumption that the friction angle and cohesion of a plane can be evaluated as a function of relative orientation of the plane referred to the weakness plane. The implication of the employed spatial distribution function is that the M-C parameter value of a plane is the...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-112
...-perfectly-plastic model and elastic-brittle-plastic model with ( m r = 0 and s r = 0.11) and instantaneous cohesion-softening friction-hardening (CSFH) model. A parametric study on the CSFH model strength parameters is also implemented to describe the influence of the strength parameters on the extent...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-060
... process occurring according to the requirements imposed by perfectly-plastic failure theory. However, tests on cores with bonded interfaces exhibit semi-brittle post-peak behavior, which in combination with a possible spatial variation in cohesion implies that a progressive failure mechanism is a more...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-222
..., water content, cohesion, gravitational and centrifugal acceleration was proposed. drilling fluid management & disposal Water Content Scenario Laboratory Scale metals & mining asian rock mechanics symposium arms8 centrifugal acceleration slope failure wattimena Upstream Oil...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-289
... mechanics symposium arms8 rock slope reservoir simulation cohesion metals & mining mechanical movement rock slope movement october 2014 rock mass layered rock slope alzo Upstream Oil & Gas numerical simulation flaw rupture surface friction angle tensile strength 8th Asian Rock...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-045
... pressure, increased rock mass strength. The deformability modulus is as increase as rock mass strength in uniaxial and triaxial conditions. Reservoir Characterization criterion cohesion uniaxial compressive strength rock mass strength Loading Rate rock mass behavior loading Upstream Oil...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-068
... increased. It is to be noted that results of direct shear test reveal increasing shear strength of soil due to increasing cohesion parameter and soil friction angle. strength cohesion reaction loess soil collapsible soil soil friction angle stability lime Upstream Oil & Gas cement...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-127
.... displacement geomechanical parameter stability ubiquitous-joint model Tunnel Stability cohesion safety factor rock mass support design plane internal friction angle Anisotropy Effect bedding plane Reservoir Characterization weakness plane characteristic anisotropy angle different anisotropy...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-147
... Characterization Artificial Intelligence reservoir geomechanics Upstream Oil & Gas cohesion wellbore integrity Monte Carlo simulation investigation slope failure determination probability distribution probability cross section middle east azimuth 30 Sweden metals & mining Wellbore Design...
Proceedings Papers

Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-161
..., overburden dump near slope crest and fault plane near mine workings. Cohesion and angle of internal friction of soil and sandstone are derived in the ranges of 5 - 40 KPa and 5 - 230 and 20 - 70 KPa and 11 - 300 respectively from back analysis of slope failures. The safe distance of overburden dump from...
Proceedings Papers

Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-094
... surface settlement of ground. In this study, the relationship between general material properties such as the Young's modulus and Poisson's ratio, the cohesion and the internal friction angle of the ground and the micro-properties of the distinct element method has determined by the simple biaxial element...
Proceedings Papers

Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-013
... strength properties obtained by RST and BST. Therefore, the purpose of this study is to obtain the relationships between the cohesion and the friction angles obtained by RST and those by BST. The results demonstrated that, for the hard rock masses [H], the strength properties by BSTs are lower than those...
Proceedings Papers

Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-130
... grout penetration to joints dependant to size grained cement. Also this theory that thick grout new, washing the thin grout old and replaced it is not correct Houlsby1982. In grouting by method GIN with using of superplasticizers can regulation viscosity and cohesion thick grouted. Bremen1977 believer...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-033
... center of the box causes an increase in the friction angle whereas the cohesion decreases for the material and the range of normal stresses used. 1. Introduction Oversize particles in a direct shear test or a triaxial test can change the shear and deformational characteristics of soil. This subject...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-131
... is employed to apply BPM. This code can create random-shaped and non-uniform-sized particles interacting in frictional and cohesive contacts. Using this approach, contact micro-parameters are calibrated to fit the conventional test results (uniaxial and triaxial compression, and Brazilian tension...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-141
... displacements were recorded during the shear test. The shear behavior of the simulated joint at a given stress corresponded well to those observed in the laboratory tests. The cohesion responded more sensitively to the joint roughness and contact bond strength of the joint than the peak friction angle. A three...
Proceedings Papers

Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-023
... wellbore integrity relation Reservoir Characterization Wellbore Design mechanical model cohesion reservoir geomechanics Upstream Oil & Gas viscosity creep test coefficient specimen construction materials variation TGP Granite room temperature granite deformation tester...

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