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PLAXIS | SOILVISION Wiki UDSM - Frozen and Unfrozen Soil Model
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    UDSM - Frozen and Unfrozen Soil Model

    Application PLAXIS 2D
    Version PLAXIS 2D
    Date created 24 November 2016
    Date modified 24 November 2016

    The Frozen and Unfrozen Soil model constitutes a soil model implemented in PLAXIS, capable of describing the mechanical behaviour of frozen soils as a function of temperature, up to the unfrozen state and vice versa. The present constitutive model is the result of a collaboration between the Norwegian University of Science and Technology (NTNU) and Plaxis bv. The aim of this model is to provide a reliable design tool to evaluate the influence of climate/temperature changes in a variety of engineering problems. The increase of engineering activities in cold regions, projects involving artificial ground freezing and consequences of global warming lead to geotechnical applications which deal with frozen/unfrozen ground.

    Frozen and unfrozen soilmodel usage

    Frost heave as a result of a long-term drop in air temperature

    The constitutive model developed by Amiri, Grimstad, Kadivar & Nordal (2016) characterises the mechanical behaviour of frozen soils as a function of temperature, up to the unfrozen state and vice versa. The Frozen and Unfrozen Soil Model is implemented as a user-defined soil model (UDSM) in PLAXIS, using the fully coupled THM calculation options.


    With the release of PLAXIS 2D/3D CONNECT Edition V20 Update 1 (January 2020), the PLAXIS User Defined Soil models are delivered with the PLAXIS installation. When enabling the Geotechnical SELECT Entitlement [GSE] when starting the PLAXIS application, this model becomes available in the Parameters tab when selecting "User-defined" for the Material model.

    Downloads

    • PLAXIS - The Frozen and Unfrozen Soil Model (2016) PDF Manual
    • Aukenthaler M., MSc thesis - The frozen & unfrozen Barcelona Basic Model (2016) PDF 
      (TUDelft repository LINK)

    See also

    How to use a user defined soil model in PLAXIS

    [Videos]


    Plaxis User Defined Soil Models

    [Models]

    • ice
    • UDSM
    • Ground freezing
    • unfrozen
    • PLAXIS
    • Frozen
    • THM
    • permafrost
    • plx-udsm
    • NTNU
    • PLAXIS 2D
    • Freezing
    • User defined soil model
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    • Micha van der Sloot Created by Bentley Colleague Micha van der Sloot
    • When: Mon, Dec 23 2019 11:47 AM
    • Micha van der Sloot Last revision by Bentley Colleague Micha van der Sloot
    • When: Fri, Jan 22 2021 8:35 AM
    • Revisions: 6
    • Comments: 0
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