Journal
COMPUTERS AND GEOTECHNICS
Volume 36, Issue 1-2, Pages 187-198Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compgeo.2008.01.006
Keywords
At-rest earth pressure coefficient; Normally consolidated soils; Critical state soil mechanics theory; Constitutive laws; Experimental observations
Categories
Funding
- Fondazione Cassa di Risparmio di Puglia
- Agenzia Regionale per la Tecnologia e l'Innovazione of Puglia Region [PS_119]
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The paper deals with the theoretical prediction of the tit-rest earth pressure coefficient for normally consolidated soils (k(0(NC))) using simple clasto-plastic constitutive models. In the first part of the work, the k(0(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 k(0(NC)) values are usually over-predicted. In the second part, a possible modification of the critical state model formulation, which allows to predict lower k(0(NC)) values for a fixed angle of shearing resistance, is considered. Finally, it discussion of the results and some brief conclusions tire proposed. (C) 2008 Elsevier Ltd. All rights reserved.
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