A comparison of four elastic visco-plastic models for soft clay

David F T Nash, Matthew A Brown

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)


The time-dependent settlement of soft clays following application of surface loading may be modelled using elastic visco-plastic constitutive models to describe the soil behaviour. For applied loadings that increase the stresses to around the in-situ yield stress, the predicted behaviour is strongly influenced by the associated breakdown of clay structure and the way in which this is modelled. Four elastic visco-plastic models have been compared and although all calculate the creep rate in fundamentally the same manner, the magnitude of predicted creep compression is strongly influenced by the modelling of destructuration.
Original languageEnglish
Title of host publicationConstitutive Modeling of Geomaterials: Advances and New Applications
EditorsQiang Yang, Jian-Min Zhang, Hong Zheng, Yangping Yao
Number of pages4
ISBN (Electronic)978-3-642-32814-5
ISBN (Print)978-3-642-32813-8
Publication statusPublished - 2012


  • Soft clay
  • Creep
  • modelling


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