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Failure Characteristics of Layered Composite Sandstones Under Varying Mechanical Contrasts: A True Triaxial Experimental Study
The deformation, strength, and failure characteristics of layered composite sandstones (LCSs) are critical issues in a stability evaluation in...
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A Test System for Microwave-Assisted Dual-Mode Mechanical Cutting of Hard Rock Under True Triaxial Compression
This paper introduces a test system for microwave-assisted dual-mode mechanical cutting of hard rock under true triaxial compression. The test system...
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Brittleness Characteristics and Damage Evolution of Coal Under True Triaxial Loading Based on the Energy Principle
In this study, triaxial compression tests were conducted on coal to better understand the mechanism of coal burst disasters in deep coal mining. The...
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Experimental investigation on pillar rockburst of true triaxial four-face rapid unloading under high stress
This study aimed to explore the effect of four-sided rapid unloading on delayed pillar rockbursts under high pressures. To this end, true triaxial...
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Study on Impact Dynamic Behavior and Failure Characteristics of Coal based on True Triaxial Split–Hopkinson Pressure Bar Experiments
Full understanding of dynamic mechanical characteristics of coal samples under true triaxial condition is of great significance for preventing and...
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Mechanical and Volumetric Fracturing Behaviors of Layered Composite Sandstones with a Contrast in Grain Size Under True Triaxial Stresses
The failure characteristics of layered rocks are a vital issue for stability evaluations of underground engineering projects. Layered rocks in a...
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Nonlinear Mechanical and 3D Rupture Morphology of Saturated Porous Sandstone Under True Triaxial Stress
In deep underground geotechnical engineering, water–rock interaction emerges as a critical factor influencing the stability of engineering rock...
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Shear Failure Mechanisms of Sandstone Subjected to Direct, True Triaxial and Confining Shear Test Conditions
The shear mechanical properties are the important factors affecting the failure of rock mass. At present, tests measuring the shear mechanical...
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Experimental Investigation on Rockburst Energy Characteristics of True Triaxial Unloading in Sandstone Under High Stress
To explore the energy evolution characteristics of rockbursts and the mechanism of excess energy in rockbursts, a self-developed rockburst...
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Deformation and Seepage Characteristics of Coal Under True Triaxial Loading–Unloading
True triaxial loading–unloading tests of coal samples were performed using a multifunctional true triaxial fluid–solid coupling experimental system....
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A Novel Dynamic Fractional Mechanical Model for Rock Fracture Under True Triaxial Static-Dynamic Combined Loading and its Engineering Application
The frequent far-field microdynamic disturbance caused by excavation of high-stress deep underground engineering will induce the continuous damage...
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Fracture propagation and failure mode characteristics of lamellar lacustrine shale under true triaxial compression conditions
Shale oil in China is mainly concentrated in lacustrine shale reservoir, which has poor structural continuity, strong heterogeneity and strong...
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Disturbance mechanical behaviors and anisotropic fracturing mechanisms of rock under novel three-stage true triaxial static-dynamic coupling loading
The surrounding rock in deep underground engineering is often subjected to true three-dimensional high-stress conditions. Excavation unloading...
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Initiation and Propagation of Interface Cracks in Layered Composite Rocks: An Investigation Using True Triaxial Experiments
The interface crack is the typical defect in fracture mechanics, and it often exists inside the layered composite rocks (LCRs). How does it respond...
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Influences of Mechanical Contrast on Failure Characteristics of Layered Composite Rocks Under True-Triaxial Stresses
Layered composite rocks (LCRs) are often encountered in underground excavation in which extensive deformation, buckling and local collapse near the...
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Intermediate Principal Stress Effects on the 3D Cracking Behavior of Flawed Rocks Under True Triaxial Compression
AbstractCrack initiation, growth, and coalescence in flawed rocks have been extensively studied for 2D (planar, penetrating) flaws under...
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Effect of lateral stress on shear strength of jointed hard rocks in true triaxial single-shear test
Shear failure along joints is one of the typical failure modes in deep underground rock masses, and indoor direct shear tests are commonly used to...
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Evaluation of the mechanical properties of Inada granite under true triaxial conditions by discrete element method
AbstractUniaxial and triaxial compression tests are commonly used in rock engineering to achieve strength and shape variations parameters. However,...
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Experimental Study of True Triaxial Loading Effect on Ultrasonic Properties of Rock Salt
Because of low permeability and porosity as well as rock salt healing, salt domes are considered suitable sites for the storage of hydrocarbon,...
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Experimental Study on the Free-Face True-Triaxial Rockburst Test Considering the Influence of Joints
To investigate the influence of joints on the rockburst process in the surrounding rock of deep tunnels, a free-face true-triaxial test was conducted...
