OPTIMAL SENSOR LOCATION FOR PARAMETER IDENTIFICATION IN SOFT CLAY

Medientyp: Sonstige Veröffentlichung; E-Artikel

Titel: OPTIMAL SENSOR LOCATION FOR PARAMETER IDENTIFICATION IN SOFT CLAY

Beteiligte: Hölter, Raoul [Verfasser:in]; Mahmoudi, Elham [Verfasser:in]; Schanz, Tom [Verfasser:in]

Erschienen: Digital Library Thüringen, 2015-08-28

Sprache: Englisch

DOI: https://doi.org/10.25643/bauhaus-universitaet.280010.25643/bauhaus-universitaet.2451

Schlagwörter: Angewandte Informatik ; ScholarlyArticle ; Computerunterstütztes Verfahren ; Angewandte Mathematik ; Building Information Modeling ; article

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Beschreibung: Performing parameter identification prior to numerical simulation is an essential task in geotechnical engineering. However, it has to be kept in mind that the accuracy of the obtained parameter is closely related to the chosen experimental setup, such as the number of sensors as well as their location. A well considered position of sensors can increase the quality of the measurement and to reduce the number of monitoring points. This Paper illustrates this concept by means of a loading device that is used to identify the stiffness and permeability of soft clays. With an initial setup of the measurement devices the pore water pressure and the vertical displacements are recorded and used to identify the afore mentioned parameters. Starting from these identified parameters, the optimal measurement setup is investigated with a method based on global sensitivity analysis. This method shows an optimal sensor location assuming three sensors for each measured quantity, and the results are discussed.

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