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Spatial variation in liquefaction risk

Authors: G. A. Fenton; E. H. Vanmarcke;

Spatial variation in liquefaction risk

Abstract

Basic concepts and methods of random field theory, useful for characterizing 'distributed disordered systems', are applied to a soil deposit to evaluate the spatial extent of liquefaction under typical conditions. The soil deposit, modelled after a site located at the Wildlife Management Area in California, is represented by a three-dimensional random properties field and is subjected to multiple realizations of a space-time random field of earthquake ground motion patterned after the Superstition Hills event of 1987. Based on Monte Carlo analysis using a deterministic one-dimensional nonlinear finite-element program, spatial variability of liquefaction risk is assessed and techniques for improving estimates of liquefaction risk, accounting for local spatial variation, are investigated. Les concepts et m6thodes de base de la théorie de champ aléatoire, servant ´ caracteogonriser les 'systémes désordonnés répartis' sont appliqueogons ´ un d´pôt de sol pour évaluer 1'étendue spatiale de la liquéfaction dans des conditions types. Le dépôt de sol, reproduisant un site situogon dans la Wildlife Management Area en Californie, est représenteacute par un champ de proprieacuteteacutes aleacuteatoires en trois dimensions et soumis a´ de multiples reacuteacutealisations d'un champ aléatoire espacetemps pour les mouvements de terrain seacuteismiques, copieacutes sur Nveacutenement de Superstition Hill en 1987. En nous basant sur une analyse de Monte Carlo utilisant un programme d'éléments finis non linéaires déterministes, nous évaluons la variabiliteacute spatiale du risque de liquéfaction et nous étudions les techniques permettant d'améliorer les évaluations du risque de liqu faction, en tenant compte de la variation spatiale locale.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
44
Top 10%
Top 10%
Average
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