Modelling yielding of soft clays with multilaminate framework

R. Mahin Roosta, M. Karstunen, M. Koskinen

Research output: Book chapter/Published conference paperConference paper

Abstract

Soft clays found in situ are often K0-consolidated. Due to this anisotropic consolidation history, the yield points identified from triaxial tests are not symmetric around the hydrostatic axis. In this paper the anisotropic consolidation of soft clay samples, with a wide range on friction angles, is simulated with a new constitutive model, called GUM, embedded in the multilaminate framework. The samples are subsequently reloaded along different stress paths in the p′-q-space, both in triaxial compression and triaxial extension. The global yield points predicted by the GUM model are compared with the yield surface predicted by the S-CLAY1 model and experimental data on reconstituted soft Finnish clays.

Original languageEnglish
Title of host publicationNumerical Models in Geomechanics - 9th Proceedings of the International Symposium on Numerical Models in Geomechanics, NUMOG 2004
EditorsS. Pietruszczak, G.N. Pande
PublisherCRC Press/Balkema
Pages157-164
Number of pages8
ISBN (Print)9789058096364
Publication statusPublished - 01 Jan 2004
Externally publishedYes
Event9th International Symposium on Numerical Models in Geomechanics, NUMOG 2004 - Ottawa, Canada
Duration: 25 Aug 200427 Aug 2004

Conference

Conference9th International Symposium on Numerical Models in Geomechanics, NUMOG 2004
CountryCanada
CityOttawa
Period25/08/0427/08/04

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