Results 11 to 20 of about 2,998 (211)
Deformation, fracture characteristics and damage constitutive model of soft coal under true triaxial complex stress paths. [PDF]
PLoS ONEUnderstanding the mechanical properties and damage deterioration mechanisms of soft coal under true triaxial complex stress paths is crucial for predicting and evaluating the stability of the roof during roadway excavation in thick soft coal seams.
Chongyang Jiang +3 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 ...
Zhigang Ma, Xuefeng Li
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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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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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Modified true triaxial Hoek-Brown criterion considering intermediate principal stress effect [PDF]
Meitan kexue jishuIn order to improve the Hoek-Brown strength criterion not considering the influence of intermediate principal stress on rock strength, the evolutions of rock strength were investigated according to the results of the rock true triaxial compression test ...
Yapeng LI +3 more
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Journal of Rock Mechanics and Geotechnical EngineeringDeep engineering disasters, such as rockbursts and collapses, are more related to the shear slip of rock joints. A novel multifunctional device was developed to study the shear failure mechanism in rocks. Using this device, the complete shear–deformation
Jun Zhao +4 more
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Shock and Vibration, 2021 To study fracture evolution and peak stress in burst risk coal samples (BRCSs) under true triaxial loading and unloading conditions, experimental and numerical research was applied to BRCSs under true triaxial stress paths entailing “x-direction ...
Wei Shen +4 more
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3D morphology and formation mechanism of fractures developed by true triaxial stress
International Journal of Mining Science and Technology, 2022 As main part of underground rock mass, the three-dimensional (3D) morphology of natural fractures plays an important role in rock mass stability. Based on previous studies on 3D morphology, this study probes into the law and mechanism regarding the influence of the confining pressure constraints on 3D morphological features of natural fractures. First,
Shichuan Zhang
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Study on the macro and micro characteristics of the influence of deviator stress on true triaxial unloading failure. [PDF]
Sci RepAbstract 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 ...
Lai J, Liu Y, Cong Y, Liu Y.
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Advances in Materials Science and Engineering, 2018 The study of deformation, strength, and other mechanical characteristics of sandstone under true triaxial compression is significant for understanding failure mechanisms in rock and evaluating the stability of underground structures.
Zhaolin Li +4 more
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