Evaluation and application of a constitutive model for frozen and unfrozen soil

Manuel Aukenthaler, Ronald Brinkgreve, A Haxaire

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientific

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Abstract

Recently, a constitutive model has been developed describing the mechanical behaviour of frozen soil as a function of temperature, all the way to the unfrozen state, and vice versa (Ghoreishian et al., 2016). The model has been implemented as a user-defined soil model in the geotechnical finite element code PLAXIS 2D and applied in practical thermo-hydro-mechanical boundary value problems. One of the problems with the use of a model for frozen / unfrozen soil is that it involves several parameters of which quite a few are not very common to geotechnical engineers. Hence, one of the goals of our study is to provide more information on the meaning and the determination of the model parameters. As an example of the use of the constitutive model, two hypothetical cases are presented. The first one is a chilled pipeline causing a drop in the ground temperature leading to frost heave. The second one is a raft foundation on frozen ground subjected to a thawing period.
Original languageEnglish
Title of host publicationProceedings of the GeoVancouver 2016
Subtitle of host publicationthe 69th Canadian Geotechnical Conference, Vancouver, Canada
Pages1-8
Number of pages8
Publication statusPublished - 2016
EventGeoVancouver 2016: The 69th Canadian Geotechnical Conference - Westin Bayshore Hotel, Vancouver, Canada
Duration: 2 Oct 20165 Oct 2016
Conference number: 69
http://www.geovancouver2016.com/

Conference

ConferenceGeoVancouver 2016
Abbreviated titleGeoVancouver 2016
CountryCanada
CityVancouver
Period2/10/165/10/16
Internet address

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