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Experimental Study of Compact Sandstone Deformation Under Axisymmetric Triaxial Loading Along Specific Paths in Stress Space
The deformation of rocks well below their ultimate strengths is frequently described through the constant stiffness moduli of the linear elasticity...
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Strength, deformation, and failure characteristics of hollow cylinder sandstone under axial–torsional tests
Due to the excavation disturbance in deep tunnel, the stress magnitude and orientation changed obviously, which affects the mechanical properties of...
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Laboratory Testing and Modeling of Creep Deformation for Sandstone Including Initial Temperature Damage
In the exploitation of deep geothermal resources, modeling and predicting deformation of surrounding rock after initial temperature damage is of...
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Comparative analysis of deformation failure and energy properties of raw coal and sandstone under uniaxial compression
This paper analyzes and compares the deformation, failure characteristics, and energy characteristics of coal and rock under uniaxial compression. It...
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Deformation characteristics, gas permeability and energy evolution of low-permeability sandstone under cyclic loading and unloading path
To guarantee the safety and stability of underground disposal, deformation behavior and permeability evolution of host rock mass are studied in the...
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Mechanical Deformation, Acoustic Emission Characteristics, and Microcrack Development in Porous Sandstone During the Brittle–Ductile Transition
To investigate the micromechanical properties of sandstones during brittle and ductile failure, we conducted uniaxial and conventional triaxial...
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Model test study on large deformation mechanism of thin-bedded metamorphic sandstone tunnel
During the construction of the Changning tunnel, large deformation of surrounding rock was induced frequently due to the effects of geological...
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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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Numerical and experimental study of fracture evolution in layered sandstone and mudstone above the cavity
In accordance with the distinctive characteristics observed in the sandstone-mudstone composite roof within Zhaogu coal mine, Jiaozuo coalfield, this...
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Deformation and hysteresis behaviors of sandstone exposed to distinct sequences of variable-frequency compressive cyclic stresses
The response of rock to dynamic loading is critical to the stability of underground engineering. This study experimentally investigated the...
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Investigation on Mechanical and Failure Characteristics of Sandstone with Flaw
To quantitatively study the instability and failure characteristics of sandstone with flaws under engineering load, a method for identifying the...
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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 analysis and elastoplastic damage modeling the mechanical properties of compact sandstone
A series of triaxial compression and cyclic loading tests were conducted to reveal the nonlinear deformation behavior of compact sandstone. The...
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Experimental study on mechanical behavior and permeability evolution of weakly cemented sandstone under unloading conditions
The excavation of underground engineering usually leads to the unloading of rock stress, causing stress concentration and resulting in the...
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4D Synchrotron X-ray Imaging of Grain Scale Deformation Mechanisms in a Seismogenic Gas Reservoir Sandstone During Axial Compaction
Understanding the grain-scale processes leading to reservoir compaction during hydrocarbons production is crucial for enabling physics-based...
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Dynamic impact properties of deep sandstone under thermal-hydraulic-mechanical coupling loads
The deep rock mass within coal mines situated in a challenging environment are characterized by high ground stress, high geotemperature, high osmotic...
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Mechanical Responses of a Porous Red Sandstone to Quasi-Static Cyclic Loads Under Uniaxial Compression
Porous rocks exhibit mechanical behaviors characterized by high compressibility and stiffness enhancement under quasi-static cyclic loads. In this...
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Infrared radiation and acoustic emission characteristics of sandstone with different granularities under uniaxial compression
The mechanical properties and deformation characteristics of sandstone are significantly influenced by granularity. To characterize the deformation...
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Experimental and numerical investigations on the mechanical behavior of sandstone subjected to gas undrained triaxial compression
In this study, mechanical behavior of sandstone is investigated through laboratory triaxial loading tests under various confining pressures (5, 15,...
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Effect of high temperature on pore characteristics, yield stress, and deformation property of sandstone
High temperature can change rock structure and mechanical properties, which may cause potential hazards in rock engineering. In this paper, mercury...
