Numerical Analysis of Soil Liquefaction Using Centrifuge Tests of a Level Site Subjected to Biaxial Shaking

Omar El Shafee, Mourad Zeghal, Tarek Abdoun

Research output: Contribution to journalConference article

Abstract

This study investigated the dynamic response and liquefaction of saturated-sand level deposits subjected to biaxial shaking using a number of centrifuge tests. Loose sandy soil deposits were built in a 2D laminar container and subjected to a series of biaxial base excitations that approximate in a fairly realistic fashion the conditions of a site subjected to earthquake shaking. A dense array of accelerometers and pore pressure sensors were used to monitor the deposit response. The recorded accelerations and pore pressures were used along with non-parametric identification procedures to estimate the corresponding dynamic shear stress-strain histories. In turn, these histories were employed to assess the effects of non-proportional loading on soil contraction and dilation mechanisms. The predicted response of the soil using the calculated parameters was in good agreement with the recorded one.

Original languageEnglish (US)
Pages (from-to)69-78
Number of pages10
JournalGeotechnical Special Publication
Volume2020-February
Issue numberGSP 318
DOIs
StatePublished - 2020
EventGeo-Congress 2020: Geotechnical Earthquake Engineering and Special Topics - Minneapolis, United States
Duration: Feb 25 2020Feb 28 2020

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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