Centrifuge modeling of seismic behavior of a slope in liquefiable soil

V. M. Taboada-Urtuzuastegui, G. Martinez-Ramirez, T. Abdoun

Research output: Contribution to journalArticlepeer-review

Abstract

Two centrifuge tests were designed to improve the understanding the response of liquefied sandy slopes beyond initial liquefaction. A distinctive dilative behavior of the soil was observed near the slope where static shear stresses are present. The corresponding drops in the piezometric records and simultaneous negative upslope spikes in the acceleration records were measured in the transducer raw data. This dilative response became stronger as the input acceleration increased and tends to limit the downslope accumulation and thus reducing the permanent lateral displacements. Therefore, the maximum permanent displacement was smaller in the model with the larger input motion, because it developed a stronger dilative response. The dilative response was not observed away from the slope, where no static shear stresses are present.

Original languageEnglish (US)
Pages (from-to)1043-1049
Number of pages7
JournalSoil Dynamics and Earthquake Engineering
Volume22
Issue number9-12
DOIs
StatePublished - 2002

Keywords

  • Centrifuge modeling
  • Dilative response
  • Lateral spreading
  • Liquefaction
  • Permanent displacement

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology
  • Soil Science

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