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Published in:
Localisation Precursors in Geomaterials? Read chapter Read first chapter

2017 | OriginalPaper | Chapter

Material Point Method Modelling of Landslides with Coupled Segregation

Authors : Benjy Marks, Itai Einav

Published in: Bifurcation and Degradation of Geomaterials with Engineering Applications

Publisher: Springer International Publishing

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Abstract

Landslides, debris flows and avalanches often exhibit strong segregation during flow and deposition. The largest particles are usually found at the nose of the avalanche, with moderate sized particles at the free surface, and smaller particles at the base of the flow. At the same time, we know that the constitutive behaviour of such a system is strongly influenced by the local average grainsize. In numerical modelling of these flows, the coupling of the spatial heterogeneity and constitutive behaviour has heretofore only been weakly coupled, if addressed at all. Here, we will present a unified framework for coupling the feedback between these two phenomena using the material point method. Several examples of landslide propagation will be investigated. The effect of flow lubrication via segregation will be highlighted.

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previous chapter Modelling Creeping and Catastrophic Failure of Thermomechanically Driven Landslides
next chapter Microstructural Effects on Strain Localization in a Multiscale Model for Hydro-Mechanical Coupling
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Metadata
Title
Material Point Method Modelling of Landslides with Coupled Segregation
Authors
Benjy Marks
Itai Einav
Copyright Year
2017
Book
Bifurcation and Degradation of Geomaterials with Engineering Applications

Print ISBN: 978-3-319-56396-1

Electronic ISBN: 978-3-319-56397-8

Copyright Year: 2017

DOI
https://doi.org/10.1007/978-3-319-56397-8_28