Global semi-empirical relationships for correlating soil unit weight with shear wave velocity by void-ratio function

Sung-Woo Moon, Yannick C. H. Ng, Taeseo Ku

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Numerous studies have attempted to relate shear wave velocity (V_s) to the geotechnical properties of soils. However, most correlations were empirically developed only for a particular site or soil type. In this study, we propose a novel approach to incorporate a generalized void ratio function with analytical phase relations for estimating the total unit weight of soils. Based on an extensively compiled soil database, the validation of semi-empirical model was carried out and its performance was also compared against existing V_s – total unit weight correlations. Moreover, a sensitivity analysis of the model input parameters was conducted to assess their significance on total unit weight estimates. It was demonstrated that the proposed semi-empirical model is successful in providing a first-order estimate of the total unit weight of soils based on the V_s, without the consideration of the overburden stresses.
Original languageEnglish
Pages (from-to)1193-1199
JournalCanadian Geotechnical Journal
Volume55
Issue number8
DOIs
Publication statusPublished - Jul 2018

Keywords

  • shear wave velocity
  • phase relations
  • unit weight
  • void ratio function

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