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Dynamics, Velocity, and Run-Out of Subaqueous Rock Avalanches

  • Fabio Vittorio De BlasioEmail author
Chapter

Abstract

Two models are introduced for the rheology and dynamics of subaqueous rock avalanches. Both models stem from the premise that the initial rock slab is rapidly transformed into a fragmented medium. The first model is based on hydroplaning; however, if hydroplaning occurs, it can start only after sufficient fragmentation, and with a permeable matrix. In a second model, the fragmenting rock absorbs water in its matrix, thus changing into a non-hydroplaning cohesive flow that progressively loses strength. Numerical simulations and theoretical considerations show that both processes are theoretically possible.

Keywords

Fragmentation Subaqueous rock-avalanche Landslide dynamics 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Department of GeosciencesUniversity of OsloOsloNorway
  2. 2.NHAZCA S.r.l., spin-off “Sapienza” Università di RomaRomeItaly

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