Field and Experimental Evidence on the Effect of Preshaking History on the Liquefaction Resistance of Silty Sand Deposits

W. El-Sekelly, T. Abdou, R. Dobry, J. H. Steidl

Research output: Contribution to journalConference article

Abstract

The paper discusses the effect of seismic preshaking history on liquefaction of silty sand soils using case histories in California, as well as experimental data. The case histories are: (a) the response of the Wildlife site in the Imperial Valley to the 2010 El-Mayor Cucapah earthquake (Mw = 7.2, amax = 0.15g); and (b) the response of the Treasure Island Fire Station (F.S.) site in the San Francisco Bay area to the 1989 Loma Prieta earthquake (Mw = 6.9, amax = 0.16g). Both sites are similar in almost every respect except for their seismic history. The magnitude and intensity of the corresponding earthquakes were also very similar at both locations. While Treasure Island F.S. did liquefy during the shaking, Wildlife did not and was far from liquefaction as indicated by piezometers at the site. The experiments conducted in this research were a crude simulation of the seismic history of the sites. From the results of the experimental simulation as well as the field case histories, it is concluded that preshaking by previous earthquakes is the most probable explanation of the higher liquefaction resistance exhibited by the Wildlife site and other sites in the Imperial Valley of Southern California.

Original languageEnglish (US)
Pages (from-to)255-263
Number of pages9
JournalGeotechnical Special Publication
Volume2018-June
Issue numberGSP 290
DOIs
StatePublished - 2018
Event5th Geotechnical Earthquake Engineering and Soil Dynamics Conference: Liquefaction Triggering, Consequences, and Mitigation, GEESDV 2018 - Austin, United States
Duration: Jun 10 2018Jun 13 2018

ASJC Scopus subject areas

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

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