[HTML][HTML] Enhancing safety, sustainability, and economics in mining through innovative pillar design: A state-of-the-art review

Y Zhang, H Qi, C Li, J Zhou - Journal of Safety and Sustainability, 2024 - Elsevier
The design of underground hard rock pillars plays a crucial role in the safety and stability of
underground mining operations. Ensuring safe and efficient resource extraction while …

Science goals and objectives for the Dragonfly Titan rotorcraft relocatable lander

JW Barnes, EP Turtle, MG Trainer… - The Planetary …, 2021 - iopscience.iop.org
NASA's Dragonfly mission will send a rotorcraft lander to the surface of Titan in the mid-
2030s. Dragonfly's science themes include investigation of Titan's prebiotic chemistry …

Three-dimensional tunnel face extrusion and reinforcement effects of underground excavations in deep rock masses

W Cai, H Zhu, W Liang - International Journal of Rock Mechanics and …, 2022 - Elsevier
The design experience and the shallow tunnel theory, which emphasize the plane strain
assumption, two-dimensional (2D) strength theory, and indoor or back analysis-based …

[HTML][HTML] Challenges associated with numerical back analysis in rock mechanics

G Walton, S Sinha - Journal of Rock Mechanics and Geotechnical …, 2022 - Elsevier
Numerical back analysis is a valuable tool available to rock mechanics researchers and
practitioners. Recent studies related to back analysis methods focused primarily on …

Time-dependent deformation mechanism for swelling soft-rock tunnels in coal mines and its mathematical deduction

J Yu, G Liu, Y Cai, J Zhou, S Liu, B Tu - International Journal of …, 2020 - ascelibrary.org
The floor heave and the inward movement of sidewalls are often encountered in the
excavation of tunnels with swelling rock properties. However, the deformation mechanism …

A novel anisotropic deterioration mechanical model for rock ductile–brittle failure under 3D high-stress and its application

Z Zheng, R Li, Q Zhang - Computers and Geotechnics, 2023 - Elsevier
After the excavation of deep underground engineering, the three-dimensional (3D) stress
state redistributes, leading to a significant change in the mechanical properties of the …

Experimental study on rock strength and deformation characteristics under triaxial cyclic loading and unloading conditions

Q Meng, JF Liu, L Ren, H Pu, Y Chen - Rock Mechanics and Rock …, 2021 - Springer
The mechanical behavior of rock under cyclic loading is quite complicated compared to
monotonic loading or unloading conditions. The triaxial cyclic loading and unloading testing …

A new numerical procedure for elasto-plastic analysis of a circular opening excavated in a strain-softening rock mass

YK Lee, S Pietruszczak - Tunnelling and Underground Space Technology, 2008 - Elsevier
A simple numerical procedure for calculating the distribution of stresses and radial
displacements around a circular tunnel excavated in a strain-softening Mohr–Coulomb or …

[HTML][HTML] A post-peak dilatancy model for soft rock and its application in deep tunnel excavation

W Cai, H Zhu, W Liang, X Wang, C Su, X Wei - Journal of Rock Mechanics …, 2023 - Elsevier
The dilation angle is the most commonly used parameter to study nonlinear post-peak
dilatancy (PPD) behavior and simulate surrounding rock deformation; however, simplified or …

A mobilized dilation angle model for rocks

XG Zhao, M Cai - International Journal of Rock Mechanics and Mining …, 2010 - Elsevier
Experimental and field observations of rock failure show that the failure process is closely
associated with rock dilation, an indicator of volumetric increase during rock deformation …