ABSTRACT Substantial advances have been achieved in various aspects of debris-flow hazard assessments over the past decade. These include sophisticated ways to date previous events, two- and three-dimensional runout models including multi-phase flows debris entrainment options, applications extreme value statistics assemble frequency–magnitude analyses. Pertinent questions remained same: How of...

Lobate debris aprons (LDA) are lobate-shaped aprons surrounding scarps and isolated massifs that are concentrated in the vicinity of the northern Dichotomy Boundary on Mars. LDAs have been interpreted as (1) ice-cemented talus aprons undergoing viscous flow, (2) local debris-covered alpine-like glaciers, or (3) remnants of the collapse of a regional retreating ice sheet. We investigate the plau...

Time-dependent rheological properties and thixotropy of reconstituted debris-flows samples taken from channel bank deposits are examined using a commercial rheometer equipped with vane rotor geometric system. Sweep tests creep were carried out involving mixtures having different grain concentrations ranging between 50% 58%. Different initial conditions the considered in order to analyze effects...

The mechanisms of debris flows and their interaction with mitigation structures are still not well understood. Among the research challenges, only few entrainment measurements available in literature, as is often masked by deposition on top. In this paper, we present a simple, cheap, effective method to measure depths. Flume experiments have therefore been performed assess influence initial flo...