A network model to assess base-filter combinations

Shire, T. and O'Sullivan, C. (2017) A network model to assess base-filter combinations. Computers and Geotechnics, 84, pp. 117-128. (doi:10.1016/j.compgeo.2016.11.014)

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Abstract

Granular filters retain base material within the narrowest constrictions of their void network. A direct comparison of the base material particle size distribution (PSD) and the filter constriction size distribution (CSD) cannot easily be used to assess filter-base compatibility. Here a conceptually simple random-walk network model using a filter CSD derived from discrete element modelling and base PSD is used to assess filter-base compatibility. Following verification using experimental data the model is applied to assess empirical ratios between filter and base characteristic diameters. The effects of filter density, void connectivity and blocking in the first few filter layers are highlighted.

Item Type:Articles
Additional Information:The first author was funded by an EPSRC Doctoral Training Account.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Shire, Dr Thomas
Authors: Shire, T., and O'Sullivan, C.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:Computers and Geotechnics
Publisher:Elsevier
ISSN:0266-352X
ISSN (Online):1873-7633
Published Online:07 December 2016
Copyright Holders:Crown Copyright © 2016 Published by Elsevier Ltd.
First Published:First published in Computers and Geotechnics 84:117-128
Publisher Policy:Reproduced under a creative commons license

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