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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
Quick Clay and Landslides of Clayey Soils
Physical Review Letters, Volume 103, No. 18, Article 188301, Year 2009
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Description
We study the rheology of quick clay, an unstable soil responsible for many landslides. We show that above a critical stress the material starts flowing abruptly with a very large viscosity decrease caused by the flow. This leads to avalanche behavior that accounts for the instability of quick clay soils. Reproducing landslides on a small scale in the laboratory shows that an additional factor that determines the violence of the slides is the inhomogeneity of the flow. We propose a simple yield stress model capable of reproducing the laboratory landslide data, allowing us to relate landslides to the measured rheology. © 2009 The American Physical Society.
Authors & Co-Authors
Khaldoun, Asmae
Netherlands, Amsterdam
Universiteit Van Amsterdam
Wegdam, Gerard H.
Netherlands, Amsterdam
Universiteit Van Amsterdam
Bonn, Daniel
Netherlands, Amsterdam
Universiteit Van Amsterdam
France, Paris
Laboratoire de Physique de L’ecole Normale Supérieure
Statistics
Citations: 58
Authors: 3
Affiliations: 4
Identifiers
Doi:
10.1103/PhysRevLett.103.188301
ISSN:
00319007