Abstract：Considering soil consolidation，the design of sluice on Suzhou River bayou is introduced，and the time-dependent interaction between pile，soil and structure under different operating conditions is analyzed by using 3D finite element method. Piles and structure are modeled as linear elements，and soils are modeled as nonlinear elements. Contacted interface elements are set between pile elements and soil elements. It is found that the counterforce of the piles and the settlement of the sluice raft both increase during soil consolidation. The differential settlement is very small，and the counterforce of corner piles is larger than that of middle piles. The calculation results show that the design of sluice，the model and parameters adopted for calculation are all rational.
