Effect of strain rate on isotropically consolidated kaolin over a wide range of strain rates in the triaxial apparatus

T. A. C. Quinn, M. J. Brown

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

Soils display strain rate dependant behaviour which may pose a problem in geotechnical engineering applications. In this study a modified lectromechanical triaxial apparatus was used to shear normally consolidated reconstituted Speswhite kaolin samples over a range of strain rates from 1%/hr to 180,000%/hr. The purpose of the investigation was to explore the variation of rate dependant soil response to increased in both drained and undrained
conditions. Results show that the shear strength of the soil to be rate dependant at all of the strain rates investigated. In the case of a drained response overall strength decreased with increasing strain rate, with the rate effects displaying
strain level dependency. Where the response was undrained the soil achieved a greater strength with increasing strai rate which increased at a greater rate than the generally assumed 10% increase in strength per log cycle increase in strain rate.
Original languageEnglish
Title of host publicationProceedings of the Fifth International Symposium on Deformation Characteristics of Geomaterials
EditorsChoong-Ki Chung, Hyun-Ki Kim, Jong-Sub Lee, Young-Hoon Jung, Dong-Soo Kim
Place of PublicationAmsterdam
PublisherIOS Press
Pages607-613
Number of pages7
ISBN (Electronic)9781607508229
ISBN (Print)9781607508212
DOIs
Publication statusPublished - 2011
EventFifth International Symposium on Deformation Characteristics of Geomaterials - Seoul, Korea, Republic of
Duration: 1 Sep 20113 Sep 2011

Conference

ConferenceFifth International Symposium on Deformation Characteristics of Geomaterials
CountryKorea, Republic of
CitySeoul
Period1/09/113/09/11

Keywords

  • Strain rate
  • Rate effects

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