A one-dimensional strain-rate based model for soft structured clays

Zhenyu Yin, J. Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

47 Citations (Scopus)

Abstract

The paper aims to investigate the destructuration effect on the time-dependent behaviour of soft structured clays. Viscosity coupled with destructuration is analysed based on experimental observations. A strain-rate based model is developed to describe the mechanical behaviour for both unstructured and structured clays under one-dimensional loading. The advantage of the proposed model lies in the determination of model parameters in a straightforward way, which leads to an easy use of the model for practical problems. Coupled with consolidation, the model is used to simulate oedometer tests at constant rate of strain and long-term creep oedometer tests on two structured clays. All comparisons between predicted and measured results demonstrate that the proposed model can reasonably describe the effect of destructuration on the time-dependent behaviour of soft structured clay under one-dimensional condition. Although the model is proposed for one-dimensional analysis, it can be a good base for developing a more general 3D model. © 2011 Science China Press and Springer-Verlag Berlin Heidelberg.
Original languageEnglish
Pages (from-to)90-100
Number of pages11
JournalScience China Technological Sciences
Volume55
Issue number1
DOIs
Publication statusPublished - 1 Jan 2012
Externally publishedYes

Keywords

  • consolidation
  • creep
  • destructuration
  • strain-rate
  • structured clays
  • viscoplasticity

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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