Overconsolidation and Stiffness of Venice Lagoon Sands and Silts from SDMT and CPTU

A novel approach to estimating the overconsolidation ratio (OCR) in Venice Lagoon sands and silts using combined seismic dilatometer (SDMT) and piezocone (CPTU) tests has been demonstrated. This method provides a practical way to assess OCR, which is crucial for understanding soil behavior under loading conditions. The study, conducted at the Treporti test site in Venice, Italy, involved constructing and monitoring a cylindrical trial embankment over four years. By analyzing SDMT and CPTU soundings before and after embankment removal, researchers observed how OCR changes reflected in the soil's stiffness behavior. Additionally, the research illustrates the potential of SDMT to evaluate the decay of soil stiffness with increasing strain levels, offering valuable insights for geotechnical engineering applications.

Monaco, P., Amoroso, S., Marchetti, S., Marchetti, D., Totani, G., Cola, S., & Simonini, P. (2014). Overconsolidation and Stiffness of Venice Lagoon Sands and Silts from SDMT and CPTU. Journal of Geotechnical and Geoenvironmental Engineering, 140(1), 215–227. https://doi.org/10.1061/(asce)gt.1943-5606.0000965