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Seismic soil–pile interaction in liquefiable soil

✍ Scribed by Assaf Klar; Rafael Baker; Sam Frydman

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
415 KB
Volume
24
Category
Article
ISSN
0267-7261

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✦ Synopsis

Numerical 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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