PVD-assisted consolidation of dredged sediments in a CDF: design of the test field

A confined disposal facility (CDF) was built at the Ancona Harbour (Italy) to host contaminated dredged sediments. The Port Authority intended get chance use reclaimed land as a storage area. Since sediments typically have very high void ratios when disposed in CDF, their consolidation is essential achieve proper mechanical characteristics. Consolidation of by prefabricated vertical drains (PVDs) and embankment preloading being planned. large strains are expected, nonlinear constitutive relations for compressibility hydraulic conductivity required model processes. For this purpose, were characterised laboratory tests determine permeability laws, followed field investigations (CPTUs dissipation tests). full scale test has been designed calibrate modelling set up operating procedures. paper illustrates discusses design criteria field.