Constitutive modelling of static liquefaction of sand with fines
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Date
2015
Authors
Rahman, M.M.
Lo, S.R.
Dafalias, Y.F.
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Conference paper
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6ICEGE : 6th International Conference of Earthquake Geotechnical Engineering, 2015, iss.430, pp.1-8
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6th International Conference on Earthquake Geotechnical Engineering (1 Nov 2015 - 4 Nov 2015 : Christchurch, New Zealand)
Abstract
Two powerful propositions: state dependency of constitutive relation and equivalent granular void ratio, e* are combined to obtain a constitutive model that can capture the influence of fines content, ƒc (particle size<0.075mm) irrespective of density and stress states. This was achieved by merely substituting e* and equivalent granular state parameter, Ψ* for void ratio, e and state parameter, Ψ into a state dependent constitutive model for clean sands. While this model can capture static liquefaction behaviour, it is further evaluated in this article with counter-intuitive but significant features of the influence of ƒc, irrespective of density and stress states.
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Copyright 2015 the authors