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modèle physique

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Modélisation physique de fondations et d'ouvrages maritimes
Gérard Rault, Luc Thorel, Jacques Garnier
Journal:

Mechanics & Industry / Volume 7 / Issue 3 / May 2006

Published online by Cambridge University Press:

17 November 2006, pp. 223-230

Print publication:

May 2006
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Après avoir rappelé les principes de la modélisation physique en centrifugeuse, technique aujourd'hui trèsrépandue, plusieurs exemples d'expérimentations réalisées au LCPC, sur des modèles réduits de fondations etd'ouvrages maritimes sont présentés. Ces études sont le plus souvent entreprises pour contribuer au dimensionnement d'ouvragesréels (plates-formes offshore, ponts, quais...). Elles nécessitent la reconstitution de massifs de sol de mêmes caractéristiques mécaniques que celles des fonds marins. Ces expérimentations sont validées par deux méthodes différentes : modélisation à différentes échelles ou comparaison avec des observations faites sur ouvrages en vraie grandeur. Les cas présentés portent, entre autres, sur les fondations profondes, les ancrages à effet de succion, les ouvrages de soutènement et les fondations sur sols renforcés.