Multiphysics hillslope processes triggering landslides

摘要: In 1996, a portion of highly instrumented experimental catchment in the Oregon coast range failed as large debris flow from heavy rain. For first time, we quantify 3-D multiphysical aspects that triggered this event, including coupled sediment deformation-fluid processes responsible for mobilizing slope failure. Our analysis is based on hydromechanical continuum model accounts loss strength due to increased saturation well frictional drag exerted by moving fluid. studies highlight dominant role bedrock topography and rainfall history played defining failure mechanism, indicated location scarp zone was accurately predicted our model.