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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
..., a 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...
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, particularly under...
Proceedings Papers
Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-028
... 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 Discussion...
Proceedings Papers
Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-024
... 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 dynamic...
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 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
... TRIAXIAL TEST 3.1 PERMEABILITY EVOLUTION FOR 2 DIRECTION To investigate experimentally the characteristics of permeability along the final fault plane, a new coupled shear displacement fluid flow testing technique under true triaxial stress state was developed. 545 The displacement and permeability...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-061
... of the apparatus is controlled by an electric and oil pressure servo mechanism which includes a feedback system. Four items, namely, shear (horizontal) load, shear displacement, normal (vertical) load, and normal displacement, 595 (a) Bottom side (b) Upper side Figure 1. Contour maps of joint surface roughness...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-099
... 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 numerical...
Proceedings Papers
Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-015
... value could not be differentiated, which was clear from the shear stress versus shear displacement curve. The results of in-situ testing confirmed the rock mass with almost similar shear strength parameters at both the bridge abutments. 1 INTRODUCTION It is proposed to construct an arc bridge...
Proceedings Papers
Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-070
... 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 behaviour rock mass repository...
Proceedings Papers
Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-004
... 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 boundary condition cn boundary condition...
Proceedings Papers
Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-033
... normal stress maximum particle size shear displacement cylinder cohesion particle size shear strength oversize particle direct shear test diameter shear test rock pile material Upstream Oil & Gas particle shear box shear stress friction angle ABSTRACT During in situ...
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
... 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 has...
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...
Proceedings Papers
Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-118
... the influence of faults on under- ground openings. \Vith Ihi; model it is possible to determine whether some points along the fault are stable or in the situation of shear Iai Iurc. Figure 9. 10. II and 12show the shear displacement distribution along the fault. It is noted that. the results in these ligures...
Proceedings Papers
Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-047
... 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 behaviors...
Proceedings Papers
Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-039
... with 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 aperture...
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 & 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...
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