Modelling of undrained shearing of soft natural clays
Paper i proceeding, 2019

stress-strain response of soft natural clays is characterised by anisotropy, destructuration and rate-dependency. An accurate constitutive description of these materials should take into consideration all of the characteristics above. In this paper, two constitutive models for soft soils, namely the SCLAY1S and Creep-SCLAY1S models are used to simulate the undrained response of two soft natural clays, Gothenburg clay from Sweden and Otaniemi clay from Finland. The SCLAY1S model accounts for the effect of inherent and induced anisotropy and destructuration, while the Creep-SCLAY1S accounts also for the creep and rate effects. The model simulations are compared against triaxial compression and extension tests on anisotropically consolidated samples. The results demonstrate the need to incorporate all features represented in the Creep-SCLAY1S model when modelling structured natural clays.

Författare

Alexandros Petalas

Chalmers, Arkitektur och samhällsbyggnadsteknik, Geologi och geoteknik

Mats Karlsson

Chalmers, Arkitektur och samhällsbyggnadsteknik, Geologi och geoteknik

Minna Karstunen

Chalmers, Arkitektur och samhällsbyggnadsteknik, Geologi och geoteknik

E3S Web of Conferences

25550403 (ISSN) 22671242 (eISSN)

Vol. 92 15001

7th International Symposium on Deformation Characteristics of Geomaterials, IS-Glasgow 2019
Glasgow, United Kingdom,

Effekterna av klimatförändrigarna på släntstabiliteten i sensitiva leror

Formas, 2017-01-01 -- 2020-12-31.

Ämneskategorier

Teknisk mekanik

Textil-, gummi- och polymermaterial

Oceanografi, hydrologi, vattenresurser

DOI

10.1051/e3sconf/20199215001

Mer information

Senast uppdaterat

2019-11-11