Method for Specifying the Sediment Hazards Associated with Landslides

Abstract

A method for delineating the degree of hazardous area due to landslides triggered by rainstorm is discussed. The method is developed by combining the occurrence probability of landslides and the solutions of momentum equation for sliding soil blocks on slope. It specifies the areal density distributions of kinetic energy as well as of momentum for sliding soil block, and is applied to a study area.
The results show that the areal density distributions of kinetic energy are very useful for estimation of the degree of hazardous area due to landslides and associated countermeasures.