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The at rest earth pressure coefficient prediction using simple elasto-plastic constitutive models

Lookup NU author(s): Dr Gaetano Elia

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Abstract

The paper deals with the theoretical prediction of the at rest earth pressure coefficient for normally consolidated soils K0(NC) using simple elasto-plastic constitutive models. In the first part of the work, the K0(NC) expressions derived from Critical State Soil Mechanics models are critically discussed. It is shown that, adopting typical values of the models parameters, the experimental K0(NC) values are usually over-predicted. In the second part, a possible modification of the critical state model formulation, which allows to predict lower K0(NC) values for a fixed angle of shearing resistance, is considered. Finally, a discussion of the results and some brief conclusions are proposed.

Publication metadata

Author(s): Federico A, Elia G, Murianni A

Publication type: Article

Publication status: Published

Journal: Computers and Geotechnics

Year: 2009

Volume: 36

Issue: 1-2

Pages: 187-198

Print publication date: 01/01/2009

Date deposited: 25/11/2009

ISSN (print): 0266-352X

ISSN (electronic): 1873-7633

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/j.compgeo.2008.01.006

DOI: 10.1016/j.compgeo.2008.01.006

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