Undrained creep behavior of a silty clay in triaxial tests

Jun Gao Zhu, Yan Hui Zhao, Jianhua Yin

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

3 Citations (Scopus)

Abstract

A number of undrained triaxial creep tests were performed for remolded Hong Kong marine clay (HKMC). The tests performed include three types: (1) three single-load-staged undrained triaxial compression creep tests; (2) one multi-load-staged undrained triaxial compression creep test, and (3) one multi-load-staged undrained triaxial extension creep test. Based on the test results, the undrained creep stress-strain Behavior are investigated. It is found that the relationship of axial strain rate (ε̇ a) against time (logt) for the single-load-staged creep tests is nearly linear, and for different creep loads the slopes of lines are almost the same. In multi-staged creep test, however, the creep deformation of current step will be affected by the current deviator stress as well as the creep history in the previous step. The parameters, m and α, will not be a constant, but changes with the current deviator stress and stress history. Based on the test results, two equations are found to determine the parameters of m and α.
Original languageEnglish
Title of host publicationInstrumentation, Testing, and Modeling of Soil and Rock Behavior - Proceedings of the 2011 GeoHunan International Conference
Pages139-146
Number of pages8
Edition222 GSP
DOIs
Publication statusPublished - 1 Dec 2011
Event2011 GeoHunan International Conference - Instrumentation, Testing, and Modeling of Soil and Rock Behavior - Hunan, China
Duration: 9 Jun 201111 Jun 2011

Conference

Conference2011 GeoHunan International Conference - Instrumentation, Testing, and Modeling of Soil and Rock Behavior
Country/TerritoryChina
CityHunan
Period9/06/1111/06/11

Keywords

  • Clays
  • Creep
  • Silts
  • Triaxial tests

ASJC Scopus subject areas

  • Architecture
  • Civil and Structural Engineering
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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