Physical models to verify a new geotechnical centrifuge
J. Kingswood
In the proceedings of: GeoVancouver 2016: 69th Canadian Geotechnical ConferenceSession: FUNDAMENTALS - VIII Physical & Numerical Modelling
ABSTRACT: The Royal Military College of Canada has recently acquired a 1.5m-diameter, 9 G-ton geotechnical beam centrifuge. It has a maximum operating acceleration of 300g and is capable of carrying two payload cradles. It will be used for both physical modelling research and as a teaching tool. In order to have confidence in the scaling relations and to produce sound laboratory procedures for the equipment, two verification test programs are conducted. First, a slope stability model; varying scale, shear strength, and slope geometry, is tested and correlated with Taylor stability numbers. Second, a strip footing is modelled and compared with analytical solutions. Correlation between the physical models at different scales and the expected analytical results are examined in order to iteratively verify the test results, improve accuracy of modelling, and refine procedure for future physical modelling.
RÉSUMÉ: Le Collège militaire royal du Canada a récemment acquis une centrifugeuse de 1.5m de diamètre pesant 9 gigatonnes. Elle a une accélération maximale de 300g et est capable de transporter deux nacelles. Elle sera à la fois utilisée en Afin de développer une confiance dans les relations deux tests de contrôle sont effectués. Le premier, un modèle de stabilité de pente à différentes tailles, valeurs de la résistance au cisaillement et géométries de la pente, est testé et la corrélation avec le nombre de Taylor est étudiée. Le deuxième test, lobtenus sont comparés aux solutions analytiques. Les corrélations entre les modèles physiques à différentes échelles et les résultats analytiques attendus sont examinés afin de calibrer de manière itérative les tests, améliorer la précision de la modélisation, et d'affiner la procédure de l'utilisation de la centrifugeuse.
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J. Kingswood (2016) Physical models to verify a new geotechnical centrifuge in GEO2016. Ottawa, Ontario: Canadian Geotechnical Society.
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author = J. Kingswood,
title = Physical models to verify a new geotechnical centrifuge,
year = 2016
}
title = Physical models to verify a new geotechnical centrifuge,
year = 2016
}