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Dynamic Response of Pile Foundation in Partially Saturated Soils
Pile foundations are integral part of many civil engineering structures such as highway bridges and tall buildings. Dynamic soil-pile interaction during seismic event is a complex problem and the complexity is further increased when such piles are located in unsaturated soils with varying degree of saturation (dos). In this paper, the overall response of piles located in unsaturated soil with two different dos is investigated using fully coupled finite element computer code. An elastoplastic material model is used to represent the stress-strain behavior of the soil skeleton. The effect of dos on the period and the spectral acceleration is discussed. Liquid and gas pressure (matric suction) development and dissipation around the pile during seismic event are also discussed. The analyses reveal that lateral displacement at the ground surface and the superstructure level, the predominant period and the spectral accelerations are influenced by the initial degree of saturation of the soil.
Dynamic Response of Pile Foundation in Partially Saturated Soils
Pile foundations are integral part of many civil engineering structures such as highway bridges and tall buildings. Dynamic soil-pile interaction during seismic event is a complex problem and the complexity is further increased when such piles are located in unsaturated soils with varying degree of saturation (dos). In this paper, the overall response of piles located in unsaturated soil with two different dos is investigated using fully coupled finite element computer code. An elastoplastic material model is used to represent the stress-strain behavior of the soil skeleton. The effect of dos on the period and the spectral acceleration is discussed. Liquid and gas pressure (matric suction) development and dissipation around the pile during seismic event are also discussed. The analyses reveal that lateral displacement at the ground surface and the superstructure level, the predominant period and the spectral accelerations are influenced by the initial degree of saturation of the soil.
Dynamic Response of Pile Foundation in Partially Saturated Soils
Ravichandran, Nadarajah (author) / Shada, H. K. (author)
GeoFlorida 2010 ; 2010 ; Orlando, Florida, United States
GeoFlorida 2010 ; 3009-3018
2010-02-15
Conference paper
Electronic Resource
English
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