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Influence of End Effect on Rock Strength in True Triaxial Compression Test [PDF]
Canadian Geotechnical Journal, 2017 The influence of the end effect on rock strength in true triaxial compression testing was studied using a numerical approach. The influence of the intermediate principal stress (σ2) on rock strength was isolated by using the two-dimensional Mohr–Coulomb failure criterion that depends only on the major principal stress (σ1) and minor principal stress ...
Ming Cai
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Behaviour of carbonated rocks under true triaxial compression
2011A true triaxial testing device has been developed in the nineties in the mining department of the Faculty of Engineering, Mons-Belgium. Since then data have been gathered from several rocks, among which various carbonated rocks exhibiting different mechanical behaviours.
Descamps, Fanny +4 more
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Strength and deformation characteristics of jointed media in true triaxial compression
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1978Abstract Laboratory triaxial compression tests to investigate the strength and deformation characteristics of jointed rocks under truly triaxial states of stress (σ 1 ≠ σ 2 ≠ σ 3 ) were conducted on an idealized model of a jointed rock in a specially designed loading arrangement.
G. Reik, M. Zacas
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True-triaxial compressive behaviour of concrete under passive confinement
Construction and Building Materials, 2017Abstract With the new triaxial testing system developed to generate passive confinement, 117 normal-weight concrete cubes were tested under 13 loading schemes, including biaxial compression and triaxial compression with both uniform and non-uniform passive confinement.
Jia-fei Jiang +2 more
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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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Damage Evolution and Failure Behavior of Sandstone under True Triaxial Compression
Geotechnical Testing Journal, 2018Abstract In the present study, a series of conventional triaxial tests (CTTs) and true triaxial tests (TTTs) were performed on sandstone through a self-developed true triaxial testing system, which was combined with acoustic emission (AE) monitoring and X-ray computed tomography (CT) scanning technique to systematically study the damage ...
Yinlong Lu +6 more
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Strength and deformability of a low-porosity sandstone under true triaxial compression conditions
International Journal of Rock Mechanics and Mining Sciences, 2020Abstract True triaxial tests ( σ 1 ≥ σ 2 ≥ σ 3 ) were conducted on the Zigong sandstone with a relatively low porosity of ~6.5% with the aim of assessing the influence of the intermediate principal stress σ 2 on the strength and deformability. Three series of true triaxial tests ( σ 3 = 0, 20,
Shihuai Zhang, Shunchuan Wu, Guang Zhang
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True triaxial cyclic behavior of concrete and rock in compression
International Journal of Plasticity, 1987Abstract Results from true triaxial cyclic tests on concrete are presented and compared with corresponding ones for dense rocks (mainly marbles) obtained under the same laboratory conditions. Common basic characteristics are confirmed regarding the essential effect of intermediate stress, the cataclastic mode of deformation under low confinement, the
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Dynamic compression behaviors of concrete under true triaxial confinement: An experimental technique
Mechanics of Materials, 2020Abstract A dynamic testing system for concrete-like material under static triaxial confinements is developed in the present article. The cubic specimen with length 50 mm is constrained by six steel square bars. The static triaxial confinements are applied on the specimen through six steel bars that independently servo-controlled by three hydraulic ...
Songlin Xu +6 more
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Volumetric Properties of Concrete under True Triaxial Dynamic Compressive Loadings
Journal of Materials in Civil Engineering, 2019AbstractAlmost all of the available test data for pressure–volumetric strain curves [equations of state (EoS)] of concrete are based on static triaxial tests and one-dimensional impact tests, for e...
Cui, J. +4 more
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