Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Failure Analysis for Geo-Hydrologic Design
Groundwater abstractions may lead to structural failure of buildings due to the settlement of the subsurface. In order to set the probability of failure to a predefined acceptable level, a probabilistic procedure is proposed in this article. The procedure provides intervention levels for groundwater heads at which the extraction of groundwater should be reduced. As part of the procedure a Levenberg-Marquardt method, extended by a subspace regularization technique, calibrates a finite element method based groundwater model that simulates flow under natural conditions or at moderate extraction rates. The method provides expected values for geo-hydrologic parameters like transmissivity and flow resistance and expresses the parameter uncertainty in a covariance matrix. A first order reliability method uses these values and calculates the failure probability conditioned for a series of intervention levels. This paper outlines the procedure and presents the results of a verification test. A pumping test near Utrecht in the Netherlands is used to simulate a field scale application. The application shows that the procedure reduces the risk of failure to an acceptable level.
Failure Analysis for Geo-Hydrologic Design
Groundwater abstractions may lead to structural failure of buildings due to the settlement of the subsurface. In order to set the probability of failure to a predefined acceptable level, a probabilistic procedure is proposed in this article. The procedure provides intervention levels for groundwater heads at which the extraction of groundwater should be reduced. As part of the procedure a Levenberg-Marquardt method, extended by a subspace regularization technique, calibrates a finite element method based groundwater model that simulates flow under natural conditions or at moderate extraction rates. The method provides expected values for geo-hydrologic parameters like transmissivity and flow resistance and expresses the parameter uncertainty in a covariance matrix. A first order reliability method uses these values and calculates the failure probability conditioned for a series of intervention levels. This paper outlines the procedure and presents the results of a verification test. A pumping test near Utrecht in the Netherlands is used to simulate a field scale application. The application shows that the procedure reduces the risk of failure to an acceptable level.
Failure Analysis for Geo-Hydrologic Design
Lecture Notes in Civil Engineering
Barla, Marco (Herausgeber:in) / Di Donna, Alice (Herausgeber:in) / Sterpi, Donatella (Herausgeber:in) / van Esch, John (Autor:in) / Sman, Bert (Autor:in) / van Meerten, Hans (Autor:in) / Brinkman, Rob (Autor:in)
International Conference of the International Association for Computer Methods and Advances in Geomechanics ; 2021 ; Turin, Italy
15.01.2021
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Failure Analysis for Geo-Hydrologic Design
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