Acoustic emission and splitting surface roughness of sandstone in a Brazilian splitting test under the influence of water saturation

C Zhang, X Wang, P Han, T Zhang, L Zhang… - Engineering …, 2024 - Elsevier
Water weakens rock masses, which induces a series of engineering geological hazards. In
this study, Brazilian splitting and acoustic emission (AE) experiments were conducted on …

Rate-dependent strength and crack damage thresholds of rocks at intermediate strain rate

H Li, L Liu, S Fu, B Liu, X Li - International Journal of Rock Mechanics and …, 2023 - Elsevier
To investigate the rate dependence on the mechanical behaviours of rocks under
intermediate strain rate, three types of rock were loaded by using a newly developed servo …

Experimental studies and numerical analysis of the dynamic mechanical properties of concrete at low temperatures

H Su, Z Zhu, T Li, H Xiang - Construction and Building Materials, 2023 - Elsevier
Concrete building structures in cold regions are frequently exposed to low-temperature
environments and inevitably subjected to impact loads during service. This study aimed to …

Fatigue mechanical properties and Kaiser effect characteristics of the saturated weakly cemented sandstone under different loading rate conditions

K Zhao, Y Liu, D Yang, B Li, Z Huang, C Huang… - Engineering …, 2024 - Elsevier
Weakly cemented sandstone (WCS) is a unique rock type widely distributed on the surface.
Environmental factors such as groundwater and stress variations easily influence its fatigue …

Influence of groundwater on micro-cracking behaviour and failure mechanism of deep hard rock

X Lv, R Zhang, A Zhang, L Ren, Z Zhang, J Xie - Measurement, 2024 - Elsevier
To address the water-inrush hazards encountered in deep tunnels in the rugged terrain of
Southwest China, the uniaxial compression tests and acoustic emission (AE) monitoring …

Dynamic mechanical properties of different types of rocks under impact loading

Z Wang, J Huang, Y Chen, X Li, T Liu, F Meng - Scientific Reports, 2023 - nature.com
To study the mechanical properties of different types of rocks under impact loading, static
mechanical parameter tests and split-Hopkinson pressure bar (SHPB) dynamic impact …

Effect of cyclic loading level on mechanical response and microcracking behavior of saturated sandstones: Correlation with water weakening phenomenon

J Zhu, X Chen, J Chen, H Chen, RYS Pak - Engineering Geology, 2024 - Elsevier
Rocks frequently endure water environments and diverse cyclic loading from natural and
anthropogenic sources across various damage stages. Understanding the mechanical and …

Influence of the combined action of water and axial pressure on the microscopic damage and mechanical properties of limestone

S Fan, Z Song, H Wang, Y Zhang, Q Zhang - Geoenergy Science and …, 2023 - Elsevier
As one of the main methods, hydraulic fracturing method is widely used in underground
energy exploitation. Groundwater not only restricts the energy exploitation efficiency, but …

Nonlinear Mechanical and 3D Rupture Morphology of Saturated Porous Sandstone Under True Triaxial Stress

M Li, J Lu, H Xie, M Gao, H Gao, D Shang… - Rock Mechanics and …, 2024 - Springer
In deep underground geotechnical engineering, water–rock interaction emerges as a critical
factor influencing the stability of engineering rock masses. This study delves into the …

[HTML][HTML] Dynamic mechanical properties and constitutive model of oil-immersed and thermally-treated red sandstone

Z Li, Y Zhu, G Zhang, Y Song, B Zhao - Construction and Building Materials, 2024 - Elsevier
To thoroughly investigate the stability of reservoir rock mass in heavy oil thermal recovery
projects, this study explored the dynamic mechanical properties and deformation behaviors …