Shear wave velocity measurement in the centrifuge using bender elements

Waleed El-Sekelly, Anthony Tessari, Tarek Abdoun

    Research output: Contribution to journalArticle

    Abstract

    Shear wave velocity is an important parameter for the design of geotechnical systems, particularly in seismically active areas. The availability of a reliable method for measuring shear wave velocity in centrifuge soil models is necessary in order to fully characterize the soil. The paper describes enhanced bender elements system developed at Rensselaer Polytechnic Institute. The fabrication process of bender elements in the laboratory is described in this paper. Also, the estimation of the shear wave velocity using the first arrival method is explained along with a study of near field presence in the results. To confirm the validity of the system, four centrifuge experiments were conducted on dry and saturated Ottawa F#55 sand. A comparison is performed between dry and saturated soil having the same relative density. Also, the effect of the direction of polarization of the shear wave is studied in the paper. The results are then compared to theoretical values estimated based on the literature and are found to match reasonably well; thus confirming the accuracy of the new system.

    Original languageEnglish (US)
    JournalGeotechnical Testing Journal
    Volume37
    Issue number4
    DOIs
    StatePublished - Jan 1 2014

    Fingerprint

    Shear waves
    Centrifuges
    centrifuge
    Velocity measurement
    wave velocity
    S-wave
    Soils
    soil
    Sand
    polarization
    Availability
    Polarization
    Fabrication
    sand
    experiment
    Experiments
    method

    Keywords

    • Bender elements
    • Centrifuge modeling
    • Shear wave velocity
    • Soil dynamics

    ASJC Scopus subject areas

    • Geotechnical Engineering and Engineering Geology

    Cite this

    Shear wave velocity measurement in the centrifuge using bender elements. / El-Sekelly, Waleed; Tessari, Anthony; Abdoun, Tarek.

    In: Geotechnical Testing Journal, Vol. 37, No. 4, 01.01.2014.

    Research output: Contribution to journalArticle

    El-Sekelly, Waleed ; Tessari, Anthony ; Abdoun, Tarek. / Shear wave velocity measurement in the centrifuge using bender elements. In: Geotechnical Testing Journal. 2014 ; Vol. 37, No. 4.
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