This study focused on the hazard zonation of potential deep-seated catastrophic landslides at the Chenyulan Creek watershed through numerical simulation and a hazard assessment method. Using the results of landform interpretation and geological surveys, we constructed a discrete element method to simulate the process of
landslide movement and determine landslide hazard zonation. And then, we integrated landslide probability, kinetic energy, debris flow velocity, and debris front thickness to evaluate potential landslide hazard zoning in the study area. Finally, several landslide cases were simulated and the results can serve as a reference for disaster prevention, mapping and zoning of areas susceptible to geological hazards, and associated mitigation project planning.
Key Words : Landslide, hazard zonation, discrete element method, numerical model, hazard assessment.