Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Probabilistic Analysis of Paleoliquefaction Features
Paleoliquefaction features can be used to estimate lower bounds on the magnitude and ground motion associated with the earthquake that caused the liquefaction feature. The engineering back-analysis of paleoliquefaction features is usually conducted using state of the practice liquefaction triggering analysis methodologies. Recent studies have shown that these methodologies are associated with variable probabilities of liquefaction depending on the soil parameters. This would imply that estimates of magnitude and ground motion intensity obtained from these methodologies would not be consistent for all soil sites. Moreover, these estimates could be unconservative. In this paper, the use of a probabilistic methodology for the back-analysis of paleoliquefaction features is proposed. The proposed methodology permits the incorporation of model and parameter uncertainty into the analysis. Moreover, the methodology permits the user to directly account for the likelihood of liquefaction associated with each paleoliquefaction site. Previously published paleoliquefaction data are used to demonstrate the applicability of the proposed method.
Probabilistic Analysis of Paleoliquefaction Features
Paleoliquefaction features can be used to estimate lower bounds on the magnitude and ground motion associated with the earthquake that caused the liquefaction feature. The engineering back-analysis of paleoliquefaction features is usually conducted using state of the practice liquefaction triggering analysis methodologies. Recent studies have shown that these methodologies are associated with variable probabilities of liquefaction depending on the soil parameters. This would imply that estimates of magnitude and ground motion intensity obtained from these methodologies would not be consistent for all soil sites. Moreover, these estimates could be unconservative. In this paper, the use of a probabilistic methodology for the back-analysis of paleoliquefaction features is proposed. The proposed methodology permits the incorporation of model and parameter uncertainty into the analysis. Moreover, the methodology permits the user to directly account for the likelihood of liquefaction associated with each paleoliquefaction site. Previously published paleoliquefaction data are used to demonstrate the applicability of the proposed method.
Probabilistic Analysis of Paleoliquefaction Features
Ciani, D. (Autor:in) / Rodriguez-Marek, A. (Autor:in)
Geo-Denver 2007 ; 2007 ; Denver, Colorado, United States
14.10.2007
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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