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Numerical predictions of seasonal pore water pressure fluctuations using FLAC tp flow

Lookup NU author(s): Owen Davies, Dr Mohamed Rouainia, Professor Stephanie Glendinning


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This paper details the development of a transfer method of the hydraulic boundary conditions from a hydrological finite difference code, SHETRAN, into a geotechnical finite difference code, FLAC two phase (tp) flow. This transfer allows the daily predicted surface pore water pressures from SHETRAN to be applied to the surface boundary of the FLAC tp flow model. Once the surface pore water pressures have been applied then any of the constitutive soil models within FLAC tp flow can be used to model the mechanical response. This process offers the advantage that actual or predicted climate data can be used together with soils and vegetation data to model the seasonal responses of an embankment. Ultimately this model will be used with predicted future climate data to predict the response of infrastructure embankments to climate change.

Publication metadata

Author(s): Davies OC, Rouainia M, Glendinning S

Editor(s): Toll, D; Augarde, CE; Gallipoli, D; Wheeler, SJ

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Unsaturated Soils. Advances in Geo-Engineering: proceedings of the 1st European Conference on Unsaturated Soils

Year of Conference: 2008

Pages: 817-822

ISSN: 9780415476928

Publisher: London: Taylor & Francis Ltd

Library holdings: Search Newcastle University Library for this item