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Keywords: shear displacement
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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-ARMS10-2018-047
... linearized implementation of Barton's model has been done to obtain the mobilized equivalent Mohr-Coulomb (M-C) parameters that account for generation and reduction of JRC as a function of shear displacement ∆ u . These equivalent parameters will allow the linear M-C model to capture nonlinearity in the...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-197
... relations, which have been reported in the literature. The present study finally predicts conceivable scale dependencies of fluid flows through joints and faults (fractures without and with shear displacement). Both joint and fault aperture distributions are characterized by a scale-independent contact area...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-032
... is applied while the shear displacement and water head drop are monitored for every 0.5 mm interval of shear displacement. The fracture hydraulic conductivities decrease exponentially with increasing normal stresses. The physical and hydraulic apertures increase with shearing displacement...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-028
... stress recovery fracture characterization asian rock mechanics symposium arms8 shear displacement slide-hold-slide process thermal condition Upstream Oil & Gas kishida frictional strength geophysical research 8th Asian Rock Mechanics Symposium ARMS8 14-16 October 2014, Sapporo, Japan...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-024
... mechanical properties (shear strength, joint dilation, shearing stiffness, peak shear displacement, etc.) depended on the surface roughness of the joint characterized by the JRC , the normal loading applied and the loading cycles. These can be helpful when investigating the weak nature of rock slopes under...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-017
.... Conformity in the results of shear and dilation modeling and laboratory tests satisfactorily verifies success of the proposed procedure. reservoir geomechanics strength joint surface peak shear displacement Reservoir Characterization Upstream Oil & Gas laboratory test asperity roughness...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-056
... related to the mechanical characteristics on the wide range of stress state from the confined triaxial compression to confined triaxial extension. Reservoir Characterization triaxial extension test specimen shear displacement Upstream Oil & Gas stress state true triaxial test...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-061
... specimen fracture Dieterich shear stress direct shear experiment shear displacement Healing and Shear Stress Reduction of Rock Salt Single Fracture under Slide-Hold-Slide Direct Shear Experiments Kiyoshi Kishidaa*, Takao Yanob and Hideaki Yasuharac a Associate Professor, Kyoto University, Kyoto...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-099
... surface asperities height is developed, and the value of hydraulic aperture under different shear displacements is determined using the multi-scale wave decomposition method based on the wavelet theory and some statistical indices. For this purpose, a high resolution laser scanning system is applied. The...
Proceedings Papers

Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-015
... abutment and six blocks at left abutment. As the rock mass was jointed and fractured with few shear zones, the shear strength parameters were evaluated only for residual values and peak value could not be differentiated, which was clear from the shear stress versus shear displacement curve. The results of...
Proceedings Papers

Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-070
... flow through the joint. Upstream Oil & Gas nuclear waste repository hydraulic fracturing cavern experiment deposition hole deposition tunnel Barton rock joint shear displacement Olsson hydraulic aperture joint conducting aperture aperture normal stress hydromechanical...
Proceedings Papers

Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-004
... are not appropriate. A more representative behaviour of joints would be achieved if the shear tests were carried out under boundary conditions of constant normal stiffness (CNS). Upstream Oil & Gas shear behavior shear displacement normal stiffness Reservoir Characterization CNL...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-033
... coarse sand of 4.763 mm (3/16-inch) maximum size that resulted in a maximum particle size to cell diameter ratio of 0.14. normal stress maximum particle size shear displacement cylinder cohesion particle size shear strength oversize particle direct shear test diameter shear test rock...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-046
... Characterization rock-rock joint normal load shear displacement structural geology joint surface maximum shear stress asperity shear strength Upstream Oil & Gas acoustic emission secondary asperity shear stress reservoir geomechanics displacement shear behavior AE amplitude shear test primary...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-176
... hydraulic apertures increase with increments of shear displacement. This result supports the condition that hydraulic apertures can be estimated from the roughness data in shearing mode. Introduction Recent concern about Deep Underground Science and Engineering Laboratory (DUSEL) and nuclear depository...
Proceedings Papers

Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-047
... topography of joint surface was recorded together with the x- and y-coordinates of measuring points. A series of cyclic shear tests were conducted using the rough GH2a (I.=o5MPa . in.s: <n l~th cycle - -: 1-1/ htcycl Shear Displacement (mm) E.s .10 0 00 :)0 10 110 Shear Displacement (mm) Figure 3. Shear...
Proceedings Papers

Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-039
... the shear displacement of rock joints was being carried out (Makurat, 1992 and Esaki.1998 and Olsson, 1993). In this study, torsional shear testing apparatus was designed to characterize hydromechanical behavior of a rock joint subjected by normal and shear stress. Prior to the experiments. initial...
Proceedings Papers

Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-073
... Upstream Oil &amp; Gas different boundary condition rock joint shear displacement constitutive model displacement strength plastic potential function numerical direct shear test discrete joint finite element shear behavior consideration joint roughness angle normal stress shear...
Proceedings Papers

Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-054
... Reservoir Characterization CNL shear displacement shear strength displacement rock joint rock mass direct shear apparatus constant normal stiffness condition shear behavior apparatus normal stiffness stiffness Upstream Oil &amp; Gas normal stress vertical displacement shear test...
Proceedings Papers

Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-111
... mechanical model shear displacement shear test deformation shear stress non-contact laser measurement system Numerical simulation of shear process about in-situ rock masses by using geographic information system DU SHOUJI " TETSURO ESAKI2, ZHOU GUOYUN 2 & YASUHIRO MITANI2 1. School of Civil...

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