Seismic Analysis for Pile Foundations in the Liquefiable Soil Layer Using FLAC3D

Abstract:

Pile foundation is the practical method to enhance earthquake-resistant ability for structures located in liquefiable soil sites. Soil liquefaction impact has been occurred such as Kashiwazaki-Kariwa NPP in 2007 Chūetsu offshore earthquake because of the soft backfill soil. To understand the behavior of pile foundations in liquefied soil during earthquake attack and conform to nuclear standard, seismic analysis with soil-structure interaction considering liquefaction using the finite difference program FLAC3D is developed to renew the traditional method used in nuclear industry. The models are verified according to a series of centrifuge model test results conducted in National Central University, Taiwan, to show the accuracy of seismic response prediction, and it provides the more advanced tool to demonstrate the detail of seismic response so that the utility and authority can easily decide the disaster prevention strategy.

• Periodical: Applied Mechanics and Materials (Volumes 764-765)
• Pages: 1114-1118
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.764-765.1114
• Online since: May 2015
• Authors: Yuan Chieh Wu*, Che Wei Hu
• Keywords: FLAC, Liquefaction, Pile Foundation

References

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