Strength Degradation of Sandstone Under Coupled Loading and Freeze–Thaw Cycles: Experimental Study and Discrete Element Numerical Simulation
Previous studies have mainly examined sandstone freeze–thaw degradation under unloaded conditions, whereas the continuous influence of sustained stress on compressive and tensile properties remains unclear. To address this issue, water-saturated specimens were subjected to axial loads of 0–2 MPa and 0–10 freeze–thaw cy...