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PLAXIS | SOILVISION Wiki UDSM - Barcelona Basic Model
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    UDSM - Barcelona Basic Model

    Application PLAXIS 2D
    Version PLAXIS 2D
    Date created 02 November 2019
    Date modified 02 November 2019

    The Barcelona Basic model is a Cam-Clay type effective stress model for the behaviour of unsaturated clay-type soils. In contrast to the original BBM, the Plaxis BBM is defined in terms of Bishop effective stress. A specific feature of the model is that it includes 'collapse' upon wetting.

    The Barcelona Basic Model has been developed with scientific support from the Polytechnic University Catalunya (UPC). This support is gratefully acknowledged.

    The Barcelona Basic Model is available as a user-defined soil model Dynamic Link Library (DLL). This DLL can be obtained Plaxis. Support on the use of the Barcelona Basic Model is only provided for this DLL under the conditions of the Bentley Geotechnical SELECT Entitlement [GSE] (former PLAXIS-VIP) support service and Article 10 of the End-User Licence Agreement.

    Status February 2014

    After investigation, the current implementation of the Barcelona Basic Model as a Plaxis user-defined soil model does not work correctly for Plaxis calculations that include changing water conditions: e.g. Undrained, Consolidation and Fully Coupled Flow-Deformation analysis, but also for a Flow-only Transient groundwater flow calculation (i.e. calculations without a deformation analysis).
    We are currently investigating this issue in order to resolve this as soon as possible. Once we have an update, this page will be updated too.

    Note: this model is only available as an experimental, academic DLL file. Please contact the Support team for more details.

    Downloads

    • Galavi Groundwater flow and Coupled analysis.pdf

    See also

    64 bit User Defined Soil model

    [Tips and Tricks]


    How to use a user defined soil model in PLAXIS

    [Videos]


    Plaxis User Defined Soil Models

    [Models]

    • wetting
    • UDSM
    • PLAXIS
    • plx-udsm
    • PLAXIS 2D
    • collapsible soil
    • 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 11:46 AM
    • Micha van der Sloot Last revision by Bentley Colleague Micha van der Sloot
    • When: Fri, Jan 22 2021 8:35 AM
    • Revisions: 3
    • Comments: 0
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