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    Volume 43, Issue 2

    Special Issue Paper

    Comparison between Laboratory and Field Stiffness by Wave Measurements

    (Received 28 February 2014; accepted 30 September 2014)

    Published Online: 14 March 2015

    CODEN: JTEVAB

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    Abstract

    The present work aims to establish a relationship between field and laboratory moduli obtained from mechanical wave measurements. Spectral analysis of surface waves was performed on a clayey sand trial layer during tests in a full-scale trial. Laboratory triaxial tests involving S-wave measurements with bender elements and accelerometers were conducted on specimens under similar conditions, and the shear modulus was determined. Both laboratory and field methodologies for the determination of the shear modulus were based on S-wave propagation through the tested material; thus they involved similar stress and strain levels. A reasonable relationship was observed between field and laboratory moduli, taking into account field conditions (moisture content and void ratio) and stress state.


    Author Information:

    Martins, João
    Univ. of Madeira, Funchal,

    Gomes Correia, A.
    ISISE, University of Minho, Guimarães,


    Stock #: JTE20140087

    ISSN:0090-3973

    DOI: 10.1520/JTE20140087

    Author
    Title Comparison between Laboratory and Field Stiffness by Wave Measurements
    Symposium ,
    Committee E60