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Deformability characteristics of a rock mass under true-triaxial stress compression
Geotechnical and Geological Engineering, 2006In this paper an experimental study was planned on rock mass model with three joint sets under triaxial and true-triaxial stress states to assess the influence of joint geometry and stress ratios on deformational behaviour of rock mass. The physical models were composed of three continuous orthogonal joint sets in which joint set-I was inclined at ...
Rajendra P. Tiwari, K. S. Rao
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Failure characteristics of two porous sandstones subjected to true triaxial stresses
Journal of Geophysical Research: Solid Earth, 2016AbstractWe conducted an extensive suite of true triaxial experiments in two porous sandstones, Bentheim (porosity ≈ 24%) and Coconino (17.5%). Our experiments demonstrate that failure of both sandstones is not only a function of σ3 but also of σ2. For a given σ3, σ1 at failure (σ1,peak) increases as σ2 is raised above σ3 between tests.
Xiaodong Ma, Bezalel C. Haimson
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Dilatancy equation of rockfill material under the true triaxial stress condition
Science China Technological Sciences, 2011Rockfill material is widely used for construction of high rockfill dam due to its facility, economical cost, high strength and effective aseismatic property. It is provoked profoundly to propose a suitable constitutive model for a better application of this material.
Yang Xiao +3 more
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Hysteresis, True-Triaxial Stress-Path and Pore Pressure Effects on Permeability
SPE/ISRM Rock Mechanics in Petroleum Engineering, 1998Abstract All producing hydrocarbon reservoirs are subject to the earth's stress anisotropy and to any regional tectonic movements. In addition, the production of fluids from a reservoir formation reduces its pore pressure such that there is an increase in its effective stresses, and dynamic changes can also occur to the horizontal field ...
S. S. Al-Harthy +3 more
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Petrophysical Properties Under True-Triaxial Stress For Hydrocarbon Recovery Prediction
SPE Permian Basin Oil and Gas Recovery Conference, 1998Abstract The production of fluids from a reservoir often reduces pore pressure such that there is an increase in its effective stresses. During water flooding orgas injection the equilibrium rock stresses can also be altered in a similar dynamic manner. An understanding of these changes are of fundamental importance
S.S. Al-Harthy +3 more
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Large stress reversals in true triaxial tests on cross‐anisotropic sand
International Journal for Numerical and Analytical Methods in Geomechanics, 2008AbstractThe results of a series of true triaxial tests with stress paths involving large reversals under 3D conditions are presented. These tests were performed on medium dense Santa Monica Beach sand to provide experimental evidence for the rotational kinematic hardening hypothesis presented in a companion paper and to provide stress–strain and volume
Jerry A. Yamamuro, Poul V. Lade
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Limiting envelopes of a limestone under true triaxial stress state
2009info:eu-repo/semantics ...
Descamps, Freija +4 more
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True Triaxial Test of Rock Under Stress and Strain Rate Control
1988The significance of true triaxial tests instead of conventional tests has been enhanced because of the need for generalized constitutive laws for geomaterials. To investigate the behavior of rock masses having restricted conditions for strains, tests of marble under strain rate control as well as stress rate control were performed using a specially ...
T Esaki, T Kimura, K Aoki, T Nishida
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Influence of stress state on dynamic behaviors of concrete under true triaxial confinements
International Journal of Mechanical Sciences, 2023Meiduo Chen +7 more
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Petrophysical Properties Under True-Triaxial Stress For Hydrocarbon Recovery
Proceedings of SPE Permian Basin Oil and Gas Recovery Conference, 1998S.S. Al-Harthy +3 more
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