Study on the mechanical properties of unloaded damage sandstone under dry-wet and freeze-thaw cycling conditions.

ABSTRACT: Understanding he impact of dry-wet and freeze-thaw cycles on the mechanical properties of unloaded damaged rock masses in reservoir bank slopes is crucial for revealing the deformation and failure mechanisms in artificially excavated slope rock masses within fluctuation zones. To address, the study focuses on unloaded damaged samples subjected to excavation disturbances, conducting various cycles of dry-wet and freeze-thaw treatment along with uniaxial and triaxial re-loading tests. A damage statistical constitutive model was established based on the experimental results and validated using numerical simulation methods. The results indicate: (1) The mechanical properties of sandstone, which has incurred damage and is not under load, are significantly impacted by cycles of drying-wetting an

SUBMITTER: Wang W 

PROVIDER: S-EPMC11661642 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature