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Centrifuge Modeling of Unsaturated Soil-Pile System
This paper describes a geotechnical centrifuge testing procedure used for evaluating the effect of degree of saturation on the dynamic response of a pile foundation supported in Ottawa sand. Specifically, the specimen preparation, testing procedure, and sample test results are presented. A uniform degree of saturation profile with depth was developed by spraying water from the top of the model and the flow rate was controlled using servo valves. The measured data indicate that the degree of saturation of the soil affects the dynamic response of the pile foundation. In addition, the presence of the pile foundation significantly alters the computed acceleration at the surface near the pile. It is also found that the peak horizontal spectral acceleration computed at the surface near the pile increases with degree of saturation while it decreases away from the pile (free-field condition).
Centrifuge Modeling of Unsaturated Soil-Pile System
This paper describes a geotechnical centrifuge testing procedure used for evaluating the effect of degree of saturation on the dynamic response of a pile foundation supported in Ottawa sand. Specifically, the specimen preparation, testing procedure, and sample test results are presented. A uniform degree of saturation profile with depth was developed by spraying water from the top of the model and the flow rate was controlled using servo valves. The measured data indicate that the degree of saturation of the soil affects the dynamic response of the pile foundation. In addition, the presence of the pile foundation significantly alters the computed acceleration at the surface near the pile. It is also found that the peak horizontal spectral acceleration computed at the surface near the pile increases with degree of saturation while it decreases away from the pile (free-field condition).
Centrifuge Modeling of Unsaturated Soil-Pile System
Ravichandran, N. (author) / Krishnapillai, S. H. (author) / Machmer, B. (author)
GeoCongress 2012 ; 2012 ; Oakland, California, United States
GeoCongress 2012 ; 1978-1987
2012-03-29
Conference paper
Electronic Resource
English
Centrifuge Modeling of Unsaturated Soil-Pile System
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