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(Article of periodic en Anglais - 2005)

Document title

Modelling the hysteresis in the velocity pattern of slow-moving earth flows : the role of excess pore pressure

Authors(s) and Affiliation(s)

VAN ASCH T.W.J. ;

Abstract

This paper describes the velocity pattern of a slow-moving earth flow containing a viscous shear band and a more or less rigid landslide body on top. To explain the hysteresis loop in the velocity pattern, the A. considers the role of excess pore pressure in the rheological behaviour of earth flow by means of a mechanistic model. He describes changes in lateral internal stresses due to a change in the velocity of the earth flow, which generates excess pore pressure followed by pore pressure dissipation. Model results are compared with a hysteresis in the velocity pattern, which was measured on the Valette landslide complex (French Alps)

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2005, vol. 30, no4 [pp. 403-411]

Bibliographic references : 20 ref.

Collation : Illustration ;

Language

Anglais

Localisation

Laboratoire INTERGEO - Paris

INIST-CNRS, Cote INIST : 17355

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2005.
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