Correlations for undrained shear strength of Finnish soft clays

Marco D'Ignazio, Kok Kwang Phoon, Siew Ann Tan, Tim Länsivaara

    Tutkimustuotos: ArtikkeliScientificvertaisarvioitu

    43 Sitaatiot (Scopus)

    Abstrakti

    The study focuses on the derivation of transformation models for undrained shear strength (su) of Finnish soft sensitive clays. Specific correlation equations for su of Finnish clays are presented in this work for the first time. Field and laboratory measurements from 24 test sites in Finland are exploited for this purpose and a multivariate database is constructed. The multivariate data consists of su from field vane, preconsolidation stress, vertical effective stress, liquid limit, plastic limit, natural water content and sensitivity. The main objective is to evaluate the interdependence of su, consolidation stresses and index parameters and provide a consistent framework for practical use. The new correlations are established through regression analyses. The constructed framework is further validated by another independent multivariate database of clays from Sweden and Norway as well as by empirical equations for Swedish and Norwegian clays. Existing correlations are evaluated for Finnish and Scandinavian clays. Finally, bias and uncertainties of the new correlations are presented.
    AlkuperäiskieliEnglanti
    Sivut1628-1645
    JulkaisuCanadian Geotechnical Journal
    Vuosikerta53
    Numero10
    DOI - pysyväislinkit
    TilaJulkaistu - 2016
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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