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Study on the Macro and Micro Characteristics of the Influence of Deviator Stress on True Triaxial Unloading Failure [PDF]

Scientific Reports
Abstract In order to investigate the influence of deviator stress on true triaxial compression with confining pressure and unloading tests, indoor experiments were conducted with six different stress combinations for unloading tests. Macroscopic characteristics of the true triaxial compression with confining pressure unloading test showed that ...
Jie Lai, Yuan Liu, Yu Cong, Yun Liu
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Permeability evolution of fractured coal subject to confining stress and true triaxial stress loading: experiment and mathematical model

Frontiers in Earth Science
The accurate elucidation and prediction of coal permeability evolution under stress loading conditions are crucial for coalbed methane production. In this study, flow experiments were conducted on six cylindrical coal samples and four cubic coal samples ...
Xiaobo Huang +7 more
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Experimental study on failure evolution mechanism of clastic rock considering cementation and intermediate principal stress

Journal of Rock Mechanics and Geotechnical Engineering, 2023
The study of clastic rock failure evolution under true triaxial stress is an important research topic; however, it is rarely studied systematically due to the limitation of monitoring technology.
Feiyan Wang +3 more
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A novel true triaxial test system for microwave-induced fracturing of hard rocks

Journal of Rock Mechanics and Geotechnical Engineering, 2021
This study introduces a test system for microwave-induced fracturing of hard rocks under true triaxial stress. The test system comprises a true triaxial stress loading system, an open-ended microwave-induced fracturing system, a data acquisition system ...
Xia-Ting Feng +6 more
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Aeolian Sand Test with True Triaxial Stress Path Achieved by Pseudo-Triaxial Apparatus

Sustainability, 2023
Aeolian sand is a special roadbed filler, but its three-dimensional mechanical properties are rarely studied. To obtain the characteristic of its deformation, strength on the deviatoric plane, and failure in three dimensions, a series of triaxial drained tests on aeolian sand in the Tengger Desert, under the condition of the constant average principal ...
Ma, Zhigang, Li, Xuefeng
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Dynamic mechanical properties and failure criteria of concrete under true triaxial stress

Shuili Shuiyun Gongcheng Xuebao, 2021
The true triaxial compression tests under different stress ratios and different loading rates are conducted to study the static and dynamic mechanical properties of concrete structures under complex stress conditions.
XU Yuanyuan +5 more
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Response of Castlegate sandstone to true triaxial states of stress [PDF]

Journal of Geophysical Research: Solid Earth, 2013
A suite of true triaxial tests were performed on Castlegate sandstone to assess the influence of the intermediate principal stress on mechanical response and failure. Five independent deviatoric stress states were employed, for which the intermediate principal stress ranged from equal to minimum compression (axisymmetric compression) to maximum ...
M. D. Ingraham, K. A. Issen, D. J. Holcomb +2 more
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Experimental study on impact dynamics and failure characteristics of coal specimen under true triaxial conditions

Meitan xuebao, 2023
Deep coal is mostly in a three-dimensional unequal stress state. In order to study the dynamic characteristics of coal under impact load, the dynamic failure mechanics experiment of coal was carried out by true triaxial Hopkinson experimental system ...
Rongxi SHEN +5 more
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Effects of intermediate stress on deep rock strainbursts under true triaxial stresses

Journal of Rock Mechanics and Geotechnical Engineering, 2023
The effect of intermediate stress (in situ tunnel axial) on a strainburst is studied with a three-dimensional (3D) bonded block distinct element method (DEM). A series of simulations of strainbursts under true triaxial in situ stress conditions (i.e.
Lihua Hu +4 more
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True triaxial tests on transversely isotropic unsaturated loess

Yantu gongcheng xuebao, 2022
In order to study the mechanical properties of transversely isotropic unsaturated remolded loess under complex stress paths, two groups of 15 tests are carried out using the true triaxial apparatus.
GUO Nan 1, CHEN Zheng-han 1, 2, YANG Xiao-hui 1, GAO Deng-hui 3
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