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Keywords: failure mode
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1780
... heterogeneity (Suàrez-Rivera et al., 2002), and strength parameters (Mitaim et al., 2004). reservoir geomechanics microcrack failure mode critical cutter depth reservoir characterization scratch test particle failure mechanism transition strength cutter depth upstream oil & gas coefficient...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1816
... properties for the reservoir and other strata. During reservoir depletion and subsequent reservoir compaction, the compressive failure mode is the dominant failure mode within the cement plugs. While during reservoir re-pressurization (given that the reservoir overlies an active aquifer) tensile failure...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0095
... station to study the failure mode and overall stability of bedding rock slope under consideration of different weathering depth and mechanical parameters. The hydropower station is Chinese first oversea hydropower project but fully adopts the domestic design standards. The slope height is 80m~85m...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1556
..., microcracking behavior associated with failure modes is investigated. The simulated results show that the 3D-GBM can capture the strength properties and deformation behavior associated with the failure modes of salt rock. This model provides an alternative and promising method to deeply investigate the micro...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1629
..., moderate and major. Next, numerical modelling was implemented to analyze the modes of rock failure around the underground openings which had led to FoG. Rocscience Software Package was used to simulate the stress-induced and structure-induced failure modes or a combination of both that had been observed...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2179
..., demonstrating how the failure mode can be driven by the pore pressure changes. Soil mechanics concepts of normally consolidated vs overconsolidated behavior are valid for distinguishing between brittle and ductile shales. Reservoir Characterization structural geology pore pressure net mean stress...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-966
... found that increasing heating temperature helps intensify the cooling induced damage and improve corresponding property changes. SEM results indicate that the inter-granular cracking is the primary failure mode during heating and cooling cycles. Based on a deterioration model, we calculated the decay...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1278
... the uniaxial testing frame. The platens apply equal loading in both directions (s 1 = s 2 ) until specimen failure. In addition, a confining device was used to perform separate biaxial tests under constant intermediate principal stress (s 2 = constant). The failure modes and peak strength of sandstone...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1357
... in geometry. The failure mode of the joint specimen under compression-shear loading can be classified into four types: coplanar shear failure, shear failure along the joint plane, shear failure along the shear stress plane and similar integrity shear failure. The joint dip angle has a decisive effect...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0658
...-shear failure mode in seismic dynamic loading is also researched at last. 1. INTRODUCTION Upstream Oil & Gas seismic wave rock slope amplification coefficient failure mode stability slope crest Earthquake boundary jointed rock slope PGA amplification coefficient Reservoir...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-416
... participation in the failure mode, according to this a small volume of rock containing veinlets lees than 1mm is considered to be representative of the intact rock. The structural description of the tested samples pointed out four typical failure types and three of them can be considered valid results...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-041
... properties than shear stiffness. Further analyses from the micro perspective are conducted by looking at the contact force, the distribution of different types of micro cracks, and the particle displacement to show the failure modes due to the variation of friction coefficient. The reduction of friction...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-683
... in the fields. Upstream Oil & Gas failure mode sandstone block laboratory experiment Reservoir Characterization Simulation Castlegate sandstone anisotropic stress loading condition deformation structural geology triaxial compressive test sandstone hole failure stress condition Wellbore...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-613
... relationship, shear strength parameters, crack propagation, and failure modes are observed and investigated. Based on the numerical simulation results and application of the regular joint models, the simulation results compared well with the shear strength models of Patton [3] and Zhang [4] for higher...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-349
... a nonlinear, staggered, heat-transfer-stress analysis for both 2-dimensional and 3-dimensional models is presented. The analysis simulates and evaluates the sealing properties of the cement and calculates the chance that one or more of the failure modes occurs. In the analysis both the construction phases...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7307
... rotational failure modes and tests with similar block orientations were analyzed for stability analytically assuming sliding and lifting modes only. Finally, the physical model test results were compared with the analytical results. The results of the physical model tests showed that the block failed...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7038
... used deterministic approach employing only the mean rock joint orientations. The comparison reveals that deterministic method generally gives a conservative estimation of the largest unstable block volume. However, while only a single failure mode of rock block can be identified from the deterministic...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7154
... Modulus displayed a descending trend with increasing slenderness ratio. No discernible correlation could be established between Poisson’s ratio and slenderness ratio. Also, it was revealed that single shearing and vertical splitting were the dominant failure modes for Gosford sandstone samples...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7489
... geotechnical baseline report Reservoir Characterization strength brittle failure reservoir geomechanics tunnel alignment structural failure blocky rockmass behavior rockmass behavioral uncertainty in-situ stress Artificial Intelligence transition failure mode rock strength tunnel domain ground...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7506
..., the strength of the rock is lower than the strength predicted by the JPW model. shale gas Pariseau model bedding angle prediction thin-section image complex reservoir strength weak plane Bossier shale Vaca Muerta shale reservoir geomechanics Upstream Oil & Gas mudstone failure mode...

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