Mechanisms of deformation and failure in colluvial slope under artificial surcharge loading.

ABSTRACT: Large-scale artificial surcharge loading often triggers landslides in colluvial deposits, yet the mechanical response and failure mechanisms of such slopes under loading remain insufficiently understood. Using a typical colluvial slope in Tibet as a case study, this research integrates physical model tests and FLAC3D simulations to investigate loading-induced deformation and failure processes. Analogous materials composed of river sand, barite powder, calcium carbonate powder, and water were prepared, and multiple regression analysis was used to establish empirical relationships between mix ratios and the resulting cohesion and internal friction angle, yielding high similarity ([Formula: see text]). Under loading, the slope exhibits maximum vertical and horizontal displacements of 40 mm an

SUBMITTER: Zuan P 

PROVIDER: S-EPMC12768376 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature