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Conference Open access Aug 2026

Pilot nanoindentation assessment of cyclic-immersion-induced micromechanical degradation in sandstone minerals

Cyclic immersion changes the mineral-scale mechanical response of sandstone and therefore affects the long-term stability of rock masses in reservoir and hydraulic-engineering environments. This pilot study addresses a specific scientific question: how cyclic dry-wet immersion affects the nanomechanical properties of f...

Rui-Qi Zhang, Qi-Jiao Yang, Hong Lai et al. · 0 citations
Open access Oct 2026

Cyclic Nanoindentation of Clay Minerals: Micromechanical Insights Into Caprock Integrity for Subsurface Energy Storage

Clay minerals are key constituents of subsurface caprocks and play a critical role in the long-term containment performance of underground energy storage systems. However, their cyclic mechanical response remains insufficiently understood, despite repeated pressure fluctuations being inherent to subsurface energy ope...

P. Cheng, T. Mishra, C.-P. Zhang et al. · 0 citations
Open access Aug 2026

Study on creep deformation behavior and constitutive model of filled fractured sandstone under freeze-thaw cycles

The time-dependent deformation and stability of fractured rock in seasonally frozen regions constitute a key scientific issue for engineering safety. To investigate the long-term deformation of fractured rock under the coupling of freeze-thaw (F-T) cycles and sustained loading, this study systematically examined the ef...

Rui Li, Jian-Xi Ren, Kai Su et al. · 0 citations
Open access Sep 2026

Degradation Behavior and Damage Evolution Model of Sandstone under Coupled Stress-Temperature-Chemical Action

Seepage from water-rich strata and persistent roof water inflow during coal mining can substantially weaken the mechanical properties of coal and rock masses. Elevated in situ stress and geothermal temperature in deep roadways further accelerate deterioration and increase the risk of engineering instability. In this st...

Tao Luo, Jiao-Tao Xu, Shi-Zhong Zhang et al. · 0 citations
Open access Aug 2026

Fracture evolution of micritic bioclastic limestone under Brazilian splitting: a comparison between natural and water-saturated states

The tensile strength properties and the initiation and propagation of tensile cracks within micritic bioclastic limestone–which forms the surrounding rock mass at the tunnel exit of the Altash Water Conservancy Project–pose a threat to engineering stability. To investigate the differences in tensile strength and stress...

Zu-Guo Mo, Maojun Huang, Yong Wu et al. · 0 citations
Open access Aug 2026

Multiscale Damage Mechanisms and Long-Term Creep Behavior of Carnallitite

To elucidate the mechanisms responsible for the low strength, pronounced variability, and long-term deformation of carnallitite, and to provide a basis for stope parameter design in deep potash mines, two carnallitite seams from a potash mine were investigated. Group C carnallitite and Group D halite-dominated rock sal...

He Wang, Xiu-Shan Qin, Zhi-Xiu Wang et al. · 0 citations

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