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The paper presents the experimental study on effect of shaking intensity on seismic responses of single-pile foundation in liquefiable soil. A pair of dynamic tests was performed on single-pile foundation models with different shaking intensities, by use of the bi-axial shaking table installed on HKUST (The Hong Kong University of Science & Technology) centrifuge. It is observed that the shaking level has remarkable effect on buildup of excess pore pressure in soil. As the pore pressure increases, the lateral soil resistances and bending moments along the pile tend to decrease, but the bearing capacity of pile foundation reduces as well. There exists a critical value of excess pore pressure ratio beyond which severe penetration of pile into soil layer occurs. The research has enhanced our current understanding on the mechanism of dynamic soil-pile interaction during the development of liquefaction.
The paper presents the experimental study on effect of shaking intensity on seismic responses of single-pile foundation in liquefiable soil. A pair of dynamic tests was performed on single-pile foundation models with different shaking intensities, by use of the bi-axial shaking table installed on HKUST (The Hong Kong University of Science & Technology) centrifuge. It is observed that the shaking level has remarkable effect on buildup of excess pore pressure in soil. As the pore pressure increases, the lateral soil resistances and bending moments along the pile tend to decrease, but the bearing capacity of pile foundation reduces as well. There exists a critical value of excess pore pressure ratio beyond which severe penetration of pile into soil layer occurs. The research has enhanced our current understanding on the mechanism of dynamic soil-pile interaction during the development of liquefaction.
Effect of Shaking Intensity on Seismic Response of Single-Pile Foundation in Liquefiable Soil
GeoShanghai International Conference 2006 ; 2006 ; Shanghai, China
2006-05-11
Conference paper
Electronic Resource
English
Effect of Shaking Intensity on Seismic Response of Single-pile Foundation in Liquefiable Soil
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