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Seismic soil–pile interaction in liquefiable soil

Klar, Assaf / Baker, Rafael / Frydman, Sam

AbstractNumerical analysis of seismic soil–pile interaction was considered in order to investigate the influence of flow mechanisms. Two models were employed—a simplified model, where the pore pressure at any depth is that of the free field, and a more complete model in which the pore pressure is associated with three-dimensional flow. The soil behavior was modeled by a nonlinear, quasi-hysteretic constitutive relation. A parametric study was carried out, varying the superstructure mass and soil permeability. It was found that there is a pore pressure threshold below which both models yield similar results, but that this threshold cannot be quantified a priori, as it depends strongly on soil–pile interaction.

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Seismic soil–pile interaction in liquefiable soil

Klar, Assaf / Baker, Rafael / Frydman, Sam

AbstractNumerical analysis of seismic soil–pile interaction was considered in order to investigate the influence of flow mechanisms. Two models were employed—a simplified model, where the pore pressure at any depth is that of the free field, and a more complete model in which the pore pressure is associated with three-dimensional flow. The soil behavior was modeled by a nonlinear, quasi-hysteretic constitutive relation. A parametric study was carried out, varying the superstructure mass and soil permeability. It was found that there is a pore pressure threshold below which both models yield similar results, but that this threshold cannot be quantified a priori, as it depends strongly on soil–pile interaction.

Seismic soil–pile interaction in liquefiable soil

Klar, Assaf / Baker, Rafael / Frydman, Sam

AbstractNumerical analysis of seismic soil–pile interaction was considered in order to investigate the influence of flow mechanisms. Two models were employed—a simplified model, where the pore pressure at any depth is that of the free field, and a more complete model in which the pore pressure is associated with three-dimensional flow. The soil behavior was modeled by a nonlinear, quasi-hysteretic constitutive relation. A parametric study was carried out, varying the superstructure mass and soil permeability. It was found that there is a pore pressure threshold below which both models yield similar results, but that this threshold cannot be quantified a priori, as it depends strongly on soil–pile interaction.

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Title:

Seismic soil–pile interaction in liquefiable soil

Contributors:

Klar, Assaf (author) / Baker, Rafael (author) / Frydman, Sam (author)

Published in:

Soil Dynamics and Earthquake Engineering ; 24 ; 551-564

Publication date:

2003-10-21

Size:

14 pages

ISSN:

DOI:

https://doi.org/10.1016/j.soildyn.2003.10.006

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Liquefaction , Piles , Lateral loads , Dynamic loads , Pile groups , Seismic response , Soil–pile interaction , Nonlinear

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