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Brittle failure modes of underground powerhouses: an insight based on true triaxial compression tests
The directions of in situ principal stresses and curvature of the opening boundary play a major role in determining the failure modes of underground...
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Influence of Axial Stress on Borehole Rockburst: Insights from True-Triaxial Tests using Granite Specimens
In this study, structural model tests using cubic granite specimens of 100 mm × 100 mm × 100 mm with a centered horizontal circular hole of 50 mm...
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Anisotropic mechanical properties of quartz mica schist subjected to true triaxial compression
Asymmetrical large deformation problem of quartz mica schist is anticipated in a planning hydropower station. The objective of this study was to...
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Failure Modes of Jointed Granite Subjected to Weak Dynamic Disturbance Under True-Triaxial Compression
Most rockbursts are associated with jointed rock masses as the energy stored inside the rock is prone to abruptly release at such discontinuities....
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Mechanical properties of cemented tailings backfill under true triaxial loading condition
The filling mining method can not only achieve the goaf, but also reduce the discharge of surface waste. The backfill is in a complex triaxial stress...
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Influences of Schistosity Structure and Differential Stress on Failure and Strength Behaviors of an Anisotropic Foliated Rock Under True Triaxial Compression
Foliated rocks are often encountered in underground engineering, and the spatial orientation relationship between its foliation and in situ stress...
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True Triaxial Experimental Study of Anisotropic Mechanical Behavior and Permeability Evolution of Initially Fractured Coal
During deep underground coal mining, coal is typically fractured under high in situ and mining-related stresses, thus increasing the risk for dynamic...
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True Triaxial Experimental Study on the Variation Characteristics of Rockburst with the Number of Fast Unloading Surfaces
The fast unloading delayed rockburst experiments on single-side, double-side, three-side, and four-side were carried out using the self-developed...
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Experimental investigation of true triaxial unloading rockburst precursors based on critical slowing-down theory
Rockburst warnings are a significant problem in the field of rock engineering. In this study, a rockburst experimental system was developed to...
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Frictional Sliding Behaviour of Rough Fracture in Granite Under True Triaxial Loading with Implications for Fault Reactivation
In deep tunnelling, mining and subsurface energy recovery, the reliable estimate of rough fracture (or fault) strength and the potential for...
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Effect of the Intermediate Principal Stress on Pre-peak Damage Propagation in Hard Rock Under True Triaxial Compression
It is of foremost importance to understand the mechanisms of damage propagation in rock under true triaxial stress. True triaxial compression tests...
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Fracture Evolution Analysis of Rock Bridges in Hard Rock with Nonparallel Joints in True Triaxial Stress States
The excavation of a deep jointed rock mass in a true triaxial stress environment can easily lead to catastrophic consequences, and the failure of a...
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Experimental study on mechanics and seepage of coal under different bedding angle and true triaxial stress state
The bedding and the true stress state have a great effect on the seepage and mechanical properties of coal. In this study, the seepage experiments of...
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Biot's Coefficient and Permeability Evolution of Damaged Anisotropic Coal Subjected to True Triaxial Stress
Studying the anisotropic seepage characteristics of coal is of great significance to the safe and efficient extraction of coalbed methane (CBM). The...
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Cracking Behaviors and Acoustic Emission Characteristics in Brittle Failure of Flawed Sandstone: A True Triaxial Experiment Investigation
True triaxial experiment with a synchronous acoustic emission (AE) monitoring system is a popular measure for the assessment of strength and cracking...
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Failure Behavior of Sandstone Specimens Containing a Single Flaw Under True Triaxial Compression
An experimental study of the failure behavior of sandstone specimens containing a single flaw under true triaxial compression was conducted. The main...
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Experimental Study of the Mechanical Characteristics of **** Marble Under Multi-stage True Triaxial Compression Testing
Because true triaxial compression testing is generally more complicated, time-consuming, and expensive than conventional triaxial compression...
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Experimental Study on Fracture Propagation of Tight Sandstone Under the True Triaxial Fracturing with Supercritical CO2
Supercritical CO2 fracturing is a novel fracturing technology that boasts significant benefits, including the reduction of reservoir pollution and...
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Experimental Study of Mechanical Behaviors and Failure Characteristics of Coal Under True Triaxial Cyclic Loading and Unloading and Stress Rotation
The top coal of extra-thick coal seams is susceptible to irreversible failure under cyclic loading and stress rotation caused by longwall top coal...
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Dynamic behavior of coal under true triaxial prestressed by using a Hopkinson bar
Deep mining is faced with severe rock dynamic problems. Coal bears high-strength static load in the deep and is prone to impact under the influence...
