Dynamic modelling of retrogressive landslides with emphasis on the role of clay sensitivity

Zhang, Xue ORCID: 0000-0002-0892-3665, Sloan, Scott W and Onate, Eugenio (2018) Dynamic modelling of retrogressive landslides with emphasis on the role of clay sensitivity. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 42 (15). pp. 1806-1822.

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Abstract

<jats:title>Summary</jats:title><jats:p>This paper presents a detailed numerical study of the retrogressive failure of landslides in sensitive clays. The dynamic modelling of the landslides is carried out using a novel continuum approach, the particle finite element method, complemented with an elastoviscoplastic constitutive model. The multiwedge failure mode in the collapse is captured successfully, and the multiple retrogressive failures that have been widely observed in landslides in sensitive clays are reproduced with the failure mechanism, the kinematics, and the deposition being discussed in detail. Special attention has been paid to the role of the clay sensitivity on each retrogressive failure as well as on the final retrogression distance and the final run‐out distance via parametric studies. Moreover, the effects of the viscosity of sensitive clays on the failure are also investigated for different clay sensitivities.</jats:p>

Item Type:	Article
Uncontrolled Keywords:	landslides, PFEM, retrogressive failure, sensitive clay, strain softening
Depositing User:	Symplectic Admin
Date Deposited:	28 Aug 2018 06:53
Last Modified:	18 Sep 2023 18:43
DOI:	10.1002/nag.2815
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3025574