Location
New York, New York
Date
16 Apr 2004, 1:30pm - 3:30pm
Abstract
Dynamic behavior of pile-foundations during earthquakes is important for the performance of many foundations. To clarify the mechanism of the soil-pile interaction, we have conducted a series of numerical analysis of a single pile foundation in the different types of a two-layer ground. Upper layer of the ground is composed of dense sand, reclaimed soils, medium dense sand or loose sand, and the lower layer of the ground is composed of clayey soils. In the liquefaction analysis, we have used a fully coupled effective stress analysis method with the cyclic elasto-plastic and elasto-viscoplastic constitutive models for sandy soils and clays. In the FEM, u-p(solid phase displacement-pore water pressure) formulation is adopted. From the numerical results, effect of liquefaction on the single pile-soil interaction has been clarified.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2004 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Oka, Fusao; Chih-Wei, Lu; and Feng, Zhang, "Effects of Liquefaction on the Numerical Analysis of a Single Pile-Soil Interaction During Earthquakes" (2004). International Conference on Case Histories in Geotechnical Engineering. 10.
https://scholarsmine.mst.edu/icchge/5icchge/session12/10
Effects of Liquefaction on the Numerical Analysis of a Single Pile-Soil Interaction During Earthquakes
New York, New York
Dynamic behavior of pile-foundations during earthquakes is important for the performance of many foundations. To clarify the mechanism of the soil-pile interaction, we have conducted a series of numerical analysis of a single pile foundation in the different types of a two-layer ground. Upper layer of the ground is composed of dense sand, reclaimed soils, medium dense sand or loose sand, and the lower layer of the ground is composed of clayey soils. In the liquefaction analysis, we have used a fully coupled effective stress analysis method with the cyclic elasto-plastic and elasto-viscoplastic constitutive models for sandy soils and clays. In the FEM, u-p(solid phase displacement-pore water pressure) formulation is adopted. From the numerical results, effect of liquefaction on the single pile-soil interaction has been clarified.
