Uniqueness of time-dependencies for Shanghai soft clay

Q. Y. Zhu, Z. Y. Yin, Z. x. Wu, P. Y. Hicher

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

2 Citations (Scopus)

Abstract

This study focuses on the uniqueness of rate-dependency, creep and stress relaxation behaviors of Shanghai soft clay based on different time-dependent tests. A one-dimensional elasto-viscoplastic model is briefly introduced based on the rate-dependency of preconsolidation pressure. The relationship between the ratedependency and the creep is firstly described. Then the strain-rate based formulation is extended to derive the evolution of vertical stress during relaxation with an analytical solution.A stress relaxation coefficient is defined as the slope of ln(σi v) versus ln(t). Based on this, the relationship between the rate-dependency coefficient and the stress relaxation coefficient is derived by solving the differential of ln(σ i v) versus ln(t). The uniqueness between the rate-dependency, the secondary compression and the stress relaxation is validated by comparing the three experimental and estimated time-dependent coefficients of Shanghai soft clay.

Original languageEnglish
Title of host publicationNumerical Methods in Geotechnical Engineering - Proceedings of the 8th European Conference on Numerical Methods in Geotechnical Engineering, NUMGE 2014
PublisherTaylor and Francis - Balkema
Pages139-143
Number of pages5
ISBN (Print)9781138026872
Publication statusPublished - 1 Jan 2014
Externally publishedYes
Event8th European Conference on Numerical Methods in Geotechnical Engineering, NUMGE 2014 - Delft, Netherlands
Duration: 18 Jun 201420 Jun 2014

Publication series

NameNumerical Methods in Geotechnical Engineering - Proceedings of the 8th European Conference on Numerical Methods in Geotechnical Engineering, NUMGE 2014
Volume1

Conference

Conference8th European Conference on Numerical Methods in Geotechnical Engineering, NUMGE 2014
Country/TerritoryNetherlands
CityDelft
Period18/06/1420/06/14

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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