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...
This study addresses the challenge of the mechanical behavior of fractured rock masses in cold regions under freeze–thaw-fatigue coupling. Uniaxial step-incremental cyclic loading tests were conducted on double-cracked red sandstone subjected to different numbers of freeze–thaw cycles to reveal the damage evolution law...
Foamed lightweight soil (FLS) subgrades in cold regions are highly susceptible to temperature-induced shrinkage cracking, compromising long-term durability. This study investigates the coupled effects of silty clay content, temperature cycling, and service temperature range on FLS shrinkage behavior and crack evoluti...
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...
Understanding the long-term creep behavior of sandstone after high-temperature treatment is crucial for the stability control of underground engineering subjected to thermal effects, such as deep geothermal development and nuclear waste storage. In this study, uniaxial and triaxial creep experiments were conducted on s...
Most existing creep studies on NEPE propellant focus on room and high temperatures, lacking systematic investigation into low-temperature creep damage. In this work, uniaxial creep tests at −10 °C, −30 °C and −50 °C under three stress levels were conducted. All specimens show complete three-stage creep behavior. Higher...
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