The University of Southampton
University of Southampton Institutional Repository

Experimental and numerical investigation of the stability of overhanging riverbanks

Samadi, A., Amiri-Tokaldany, E., Davoudi, M.H. and Darby, Stephen E. (2013) Experimental and numerical investigation of the stability of overhanging riverbanks Geomorphology, 184, pp. 1-19. (doi:10.1016/j.geomorph.2012.03.033).

Record type: Article


Although different types of riverbank mass failure have been studied by many researchers, many uncertainties remain in predicting cantilever failures, in part because of a lack of detailed observations of this type of bank collapse. In this study, a laboratory study of cantilever failure was carried out using two types of materials to form overhanging banks with three different densities. The laboratory results show that the occurrence of toppling failures is more probable than the simple shear–type mechanism that has been analyzed most frequently by prior researchers. We go on to model these toppling failures numerically. Specifically, a Mohr-Coulomb model, within the framework of SIGMA/W software (ver. 7.17), was used to simulate the stress–strain behavior of the experimental banks. The numerical results for loess materials are in good agreement with the laboratory observations, but the simulations do not replicate experimental failures observed in higher density, more cohesive soils

PDF Samadi et al 2013.pdf - Version of Record
Restricted to Repository staff only
Download (5MB)

More information

Published date: 2013
Organisations: Earth Surface Dynamics


Local EPrints ID: 336920
ISSN: 0169-555X
PURE UUID: 8adc0764-965f-401c-af5d-08c9cb6f2fbe
ORCID for Stephen E. Darby: ORCID iD

Catalogue record

Date deposited: 11 Apr 2012 13:49
Last modified: 18 Jul 2017 06:06

Export record



Author: A. Samadi
Author: E. Amiri-Tokaldany
Author: M.H. Davoudi

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.