Chapter
Dec 27, 2013
Numerical Study on Dynamic Behavior of Pile Group in Liquefiable Soils
Authors: L. Su [email protected], L. Tang [email protected], X. Z. Ling [email protected], X. Y. Zhang [email protected], X. Gao [email protected], and C. H. Liu [email protected]Author Affiliations
Publication: International Efforts in Lifeline Earthquake Engineering
Abstract
The pile bending moments are particularly important for engineers to design pile foundations in liquefiable soils. In order to investigate the effect of width-to-thickness ratio of pile cap, pile diameter, initial stiffness ratio of soil and pile and mass of superstructure on the pile peak bending moments subjected to dynamic loading, the three-dimensional (3D) finite difference method considering the coupling of soil-fluid is employed to simulate shaking table experiment for soil-pile group interaction in liquefiable soils under sinusoidal wave. For comparison, a representative single-pile reference simulation is also studied. In the numerical modeling, a modified form of the Mohr-Coulomb plasticity model called as Finn Model (Itasca, 2002) that can perform coupled dynamic-groundwater flow calculations is used to simulate the effects of soil liquefaction. The numerical modeling is well verified through the shaking table experiment. A number of results and discussions are presented for describing the simulated behavior of pile group in liquefiable soils.
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© 2014 American Society of Civil Engineers.
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Published online: Dec 27, 2013
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School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China. E-mail: [email protected]
School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China. E-mail: [email protected]
School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China. E-mail: [email protected]
School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China. E-mail: [email protected]
School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China. E-mail: [email protected]
School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China. E-mail: [email protected]
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