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Keywords: shear failure
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Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-106
.... The radius of the plastic zone is positively correlated with in-situ stress but negatively correlated with yield stress, power hardening index, pore pressure and Biot coefficient. Initiation modes include tensile failure and shear failure when rock is yielded. For elastic-plastic reservoir...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-118
... rock mass constitutive model Engineering Chinese Journal shear failure rock sample Upstream Oil & Gas modeling failure criterion plastic strain structural geology strength Rock mechanics damage constitutive model University mechanics tension failure elastic-plastic-brittle...
Proceedings Papers

Paper presented at the 11th ISRM Congress, July 9–13, 2007
Paper Number: ISRM-11CONGRESS-2007-228
... criterion. Figure 1 shows the pattern of fractures exposed on the exca- vation face of a mine stope in a weak chloritic quartzite. Two sets of conjugated fractures are formed in the rock under the high in-situ rock stresses. The failure mode is obviously in shear in this case. Shear failure could occur also...
Proceedings Papers

Paper presented at the 10th ISRM Congress, September 8–12, 2003
Paper Number: ISRM-10CONGRESS-2003-021
... shear failure test result MPa Reservoir Characterization aspect ratio cylindrical sample rock sample strength cubic sample confinement envelope lateral confinement compression granite cube biaxial strength 113 Bétournay, M.C., Mitri, H.S., Laboratory simulation of the behaviour...
Proceedings Papers

Paper presented at the 9th ISRM Congress, August 25–28, 1999
Paper Number: ISRM-9CONGRESS-1999-232
... tbm-bored tunnel exfoliation renewable energy shear failure Myrvang reservoir geomechanics situ rock stress measurement road tunnel Reservoir Characterization tunnel surface tangential stress construction horizontal stress uniaxial compressive strength stress measurement tunnel...
Proceedings Papers

Paper presented at the 9th ISRM Congress, August 25–28, 1999
Paper Number: ISRM-9CONGRESS-1999-026
... with generally observed failure behavior, comparisons with laboratory model tests, and comparisons with other analysis methods. The work concentrated on simulation of the following failure modes: (I) circular (rock mass) shear failure in contin- uum .slopes, 'or in highly jointed or weak rock masses, and (2...
Proceedings Papers

Paper presented at the 9th ISRM Congress, August 25–28, 1999
Paper Number: ISRM-9CONGRESS-1999-091
... wellbore stability thermoporoelastic system normalized radial distance porosity Upstream Oil & Gas diffusivity failure potential shale wellbore integrity pore pressure variation borehole Wellbore Design shear failure potential thermoporoelastic model equation borehole wall...
Proceedings Papers

Paper presented at the 9th ISRM Congress, August 25–28, 1999
Paper Number: ISRM-9CONGRESS-1999-128
... the failure of a homogeneous rock mass in a compressive stress environment, are typically based on shear failure criteria. In principle it is possible to reproduce localized shear failure by the formation of shear bands or shear fractures. These features do, however, not appear to represent the observed...
Proceedings Papers

Paper presented at the 8th ISRM Congress, September 25–29, 1995
Paper Number: ISRM-8CONGRESS-1995-157
... Reservoir Characterization Upstream Oil & Gas water curtain pressure rock cavern natural gas storage Engineering borehole LNG rsrl shear failure liquified natural gas gas monetization cavern water pressure kPa leakage rock mass air containment capacity containment capacity...
Proceedings Papers

Paper presented at the 7th ISRM Congress, September 16–20, 1991
Paper Number: ISRM-7CONGRESS-1991-089
... Pocheon granite, being produced in Korea, is used as the test sample. Dimensions of test models are 15x 15x15 cm, with a center hole of 10 mm diameter. Upstream Oil & Gas detection pressure-time record granite Reservoir Characterization fracture toughness shear failure outer pressure...
Proceedings Papers

Paper presented at the 6th ISRM Congress, August 30–September 3, 1987
Paper Number: ISRM-6CONGRESS-1987-065
... ABSTRACT: The paper shows that all brittle material and rocks, irrespective of the body shape and its structure, feature a common intrinsic regularity of shear failure - formation of the tension cracks at the initial phase and the zones of compression and crushing in the principal stress...
Proceedings Papers

Paper presented at the 5th ISRM Congress, April 10–15, 1983
Paper Number: ISRM-5CONGRESS-1983-092
... Characterization Fluid Dynamics structural geology sur du barrage resistance renewable energy stability subduction zone shear failure flow in porous media liu-jia-xia hydro-power station Institute grout curtain daa foundation high dam foundation preuure seientia sidiea fracture analytical...
Proceedings Papers

Paper presented at the 4th ISRM Congress, September 2–8, 1979
Paper Number: ISRM-4CONGRESS-1979-029
... & mining strength Reservoir Characterization Upstream Oil & Gas cobble reef strain fracture incidence fracture ore pass Strength Index strata rock pass reservoir geomechanics quartzite shear failure sub-vertical shaft field stress plane compression failure bedding plane CONTROL...
Proceedings Papers

Paper presented at the 1st ISRM Congress, September 25–October 1, 1966
Paper Number: ISRM-1CONGRESS-1966-087
...Multiple modes of shear failure In rock Les differents modes de rupture par cisaillement dans les roches Verschiedene Arten des Felsscherbruches 3.47 by F. D. PATTON,Geologist and Foundation Engineer Research Associate, Department of Civil Engineering, University of Illinois, Urbana, Illinois, U. S...
Proceedings Papers

Paper presented at the 1st ISRM Congress, September 25–October 1, 1966
Paper Number: ISRM-1CONGRESS-1966-088
... of plane Coulombic friction which is inherent in Terzaghi's and Skempton's analyses. 3. Theoretical failure criteria The appropriate failure criteria may be.illustrated by considering the disc model of Figure 1. effective stress component shear failure compressive stress uniaxial compression...

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