DSC Model for Soil and Interface Including Liquefaction and Prediction of Centrifuge Test
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 132, Issue 2
Abstract
Realistic predictions of dynamic soil–structure interaction problems require appropriate constitutive models for the characterization of soils and interfaces. This paper presents a unified model based on the disturbed state concept (DSC). The parameters for the models for the Nevada sand, and sand–metal interface are obtained based on available triaxial test data on the sand and interfaces. The predicted stress–strain–pore water pressure behavior for the sand using the DSC model is compared with the test data. In addition, a finite element procedure with the DSC model, based on the generalized Biot’s theory, is used to predict the measured responses for a pile (aluminum) sand foundation problem obtained by using the centrifuge test. The predictions compared very well with measured pore water pressures. The DSC model is used to identify microstructural instability leading to liquefaction. A procedure is proposed to apply the proposed method for analysis and design for dynamic response and liquefaction.
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Acknowledgments
The research reported here was partly supported by Grant Nos. NSFCMS 9115316 and NSFCMS-9732811 from the National Science Foundation, Washington, D.C.
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Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 132 • Issue 2 • February 2006
Pages: 214 - 222
Copyright
© 2006 ASCE.
History
Received: Sep 23, 2003
Accepted: May 9, 2005
Published online: Feb 1, 2006
Published in print: Feb 2006
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