Abstract：The consolidation settlement of the dredger fill under deadweight in Lingangxincheng area of Shanghai is studied using large strain theory and a centrifuge model test. The settlement and final time of consolidation under deadweight are achieved from large strain agrees with centrifuge model test. For the same degree of consolidation，the time of consolidation got from large strain theory is more than that got from centrifuge model test before consolidation of dredger fill is completed. The consolidation settlement under deadweight includes two stages：quick and slow consolidations. The quick consolidation takes about 1 year. At the initial stage of the quick consolidation，soil settles fast. Fifty percent of the settlement is completed after half a year. Eighty percent of the total settlement takes place during the quick consolidation. The remaining 20% of the settlement occurs during the slow settlement. An empirical formulation is determined through curve fitting to describe the relationship between settlement and time. The formulation can be used to predict the consolidation settlement of dredger fill.
