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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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Strength Reduction of Initial High-Stress Rock Pillars Under Different Triaxial Unloading Paths
The mechanical behavior of deep rock pillars is closely related to the coupling effect of the initial high stress and the excavation-unloading...
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Experimental study on triaxial unloading mechanical properties and acoustic emission response of shale with different water contents
Water is one of the most significant factors influencing the mechanical properties of rocks. Triaxial unloading acoustic emission (AE) tests were...
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Effects of Complex Triaxial Unloading Confining Stress Conditions on the Mechanical Behaviour and Fracture Mechanism of Sandstone
The effect of complex triaxial unloading confining pressure conditions on the mechanical behaviour and fracture mechanism of sandstone is...
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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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Mechanical characteristics of failure and rockburst proneness of fractured granite from Shuangjiangkou hydropower station under triaxial loading and unloading
To investigate the mechanical behaviors of failure and rockburst proneness of fractured rock mass during excavation unloading under high in-situ...
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Analysis of pre-peak strain energy storage transformation mechanism of diorite under triaxial loading–unloading paths
To address the unclear instability mechanism of a rock mass under a complex stress path and considering the widely recognized research methods with...
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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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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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Study on failure mechanical behavior of coal in triaxial stress loading and unloading path
To investigate the influence of loading–unloading paths as well as loading and unloading rates on the deformation and failure behavior of coal,...
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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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Mechanical properties and energy evolution of Beishan shallow-layer granite under different unloading paths
Rock has mechanical characteristics and a fracture damage mechanism that are closely related to its loading history and loading path. The mechanical...
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Energy Evolution and Brittleness Analysis of Sandstone Under Confining Pressure Unloading
Excavation and unloading operations in underground rock engineering can cause strong disturbances to the original in situ stress, potentially leading...
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Study on post-peak stress-seepage characteristics of limestone under triaxial cyclic loading and unloading conditions
In order to study the post-peak permeability evolution of limestone under triaxial cyclic loading and unloading conditions, this paper takes...
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Experimental study on unloading failure characteristics and damage evolution rules of deep diorite based on triaxial acoustic emission tests
With the increasing depletion of shallow-earth mineral resources, deep mining will become the primary route of future mineral resources development....
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Acoustic Emission Characteristics of Coal Failure Under Triaxial Loading and Unloading Disturbance
The utilization of deep mineral resources is severely restricted by dynamic disasters, such as rock burst, caused by mining disturbances. This study...
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An innovative test to study cracking behavior of fractured rock-like material under stepped excavation unloading
Fractures are commonly found throughout rock masses. The propagation and coalescence of these fractures can significantly weaken the surrounding rock...
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Triaxial creep test and PFC numerical simulation of rock-like materials with cracks
In order to study the triaxial compression creep characteristics of rock samples containing cracks, indoor triaxial compression creep tests of intact...
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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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Hydraulic Fracture Feature of Rock Under Unloading Based on Test and Numerical Simulation
Water inrush results from excavation unloading and high water pressure coupling. To study the propagation mechanisms of hydraulic fracture and...
