Effect of fabric anisotropy on seismic response of strip foundations

Bo Li, Xiangwu Zeng, Hao Yu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

Failure of strip foundations induced by earthquake has been widely observed in the field. Fabric anisotropy of sand due to the deposition history and pattern may affect the response of strip foundations in seismic bearing capacity and settlement. In this study, eight earthquake centrifuge tests were performed on models of a strip foundation to study the seismic response of strip foundation with base layer deposited by different angles. A special rigid container was designed and used to prepare models with different directions of soil deposition. It was found that fabric anisotropy greatly influenced the response of the ground and structure in displacement, acceleration, and excess pore pressure. It shows that conventional design method should consider the influence of deposition history and pattern, which significantly affected the seismic bearing capacity and settlement of strip foundations.

Original languageEnglish
Title of host publicationGeoRisk 2011
Subtitle of host publicationGeotechnical Risk Assessment and Management - Proceedings of the GeoRisk 2011 Conference
Pages326-335
Number of pages10
Edition224 GSP
DOIs
StatePublished - 2011
EventGeoRisk 2011: Geotechnical Risk Assessment and Management - Atlanta, GA, United States
Duration: 26 Jun 201128 Jun 2011

Publication series

NameGeotechnical Special Publication
Number224 GSP
ISSN (Print)0895-0563

Conference

ConferenceGeoRisk 2011: Geotechnical Risk Assessment and Management
Country/TerritoryUnited States
CityAtlanta, GA
Period26/06/1128/06/11

Keywords

  • Anisotropy
  • Failures
  • Foundations
  • Geohazards
  • Seismic effects

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