ASCHFLOW - A dynamic landslide run-out model for medium scale hazard analysis

摘要: Landslides hazard analyses entail a scale-dependent approach in order to mitigate accordingly the damages and other negative consequences at respective scales of occurrence. Medium or large scale landslide run-out modelling for many possible initiation areas has been very difficult task past. This arises from inability models compute displacement with amount individual as it turns out be computationally strenuous. Most existing physically based have difficulties handling such situations. For this reason, empirical methods used practical mean predict landslides mobility medium (1: 10,000 1: 50,000). They are most widely techniques estimate maximum distance affected zones not only locally but also regionally. In context, numerical model flow-like mass movements urban mountainous was developed. “AschFlow” is 2-D one-phase continuum that simulates, entrainment, spreading deposition process debris flow scale. The thus treated single phase material, whose behavior controlled by rheology (e.g., Voellmy Bingham). developed implemented dynamic GIS environment. deterministic nature makes calculate velocity, height increase erosion, resulting estimation various forms impacts exerted flows regional applied evaluated well documented known past events. outputs can considered an indication possibly defined intensity one more From user perspective seen standalone which utilized first assessment potentially impact areas.