An anisotropic elastoplastic model for soft clays

Simon J. Wheeler, Anu Naatanen, Minna Karstunen, Matti Lojander

Research output: Contribution to journalArticle

319 Citations (Scopus)

Abstract

An anisotropic elastoplastic model for soft clays is presented. Experimental data from multistage drained triaxial stress path tests on Otaniemi clay from Finland provide support for the proposed shape of the yield curve and for the proposed relationship describing the change of yield curve inclination with plastic straining. Procedures are proposed for determining the initial inclination of the yield curve and the values of the two additional soil constants within the model. Comparisons of model simulations with experimental data demonstrate significant improvements in the performance of the new model over the Modified Cam Clay model. The remaining discrepancies are mainly attributable to the important role of destructuration in the sensitive Otaniemi clay.
LanguageEnglish
Pages403-418
Number of pages15
JournalCanadian Geotechnical Journal
Volume40
Issue number2
DOIs
Publication statusPublished - 2003

Fingerprint

soft clay
Clay
Cam-clay model
clay
Cams
plastic
Plastics
Soils
simulation
soil

Keywords

  • anisotropy
  • elastoplasticity
  • soils
  • water resources
  • laboratory tests
  • rotational hardening
  • soft clays

Cite this

Wheeler, S. J., Naatanen, A., Karstunen, M., & Lojander, M. (2003). An anisotropic elastoplastic model for soft clays. Canadian Geotechnical Journal, 40(2), 403-418. https://doi.org/10.1139/T02-119
Wheeler, Simon J. ; Naatanen, Anu ; Karstunen, Minna ; Lojander, Matti. / An anisotropic elastoplastic model for soft clays. In: Canadian Geotechnical Journal. 2003 ; Vol. 40, No. 2. pp. 403-418.
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Wheeler, SJ, Naatanen, A, Karstunen, M & Lojander, M 2003, 'An anisotropic elastoplastic model for soft clays' Canadian Geotechnical Journal, vol. 40, no. 2, pp. 403-418. https://doi.org/10.1139/T02-119

An anisotropic elastoplastic model for soft clays. / Wheeler, Simon J.; Naatanen, Anu; Karstunen, Minna; Lojander, Matti.

In: Canadian Geotechnical Journal, Vol. 40, No. 2, 2003, p. 403-418.

Research output: Contribution to journalArticle

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KW - soils

KW - water resources

KW - laboratory tests

KW - rotational hardening

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Wheeler SJ, Naatanen A, Karstunen M, Lojander M. An anisotropic elastoplastic model for soft clays. Canadian Geotechnical Journal. 2003;40(2):403-418. https://doi.org/10.1139/T02-119