The feasibility of Terzaghi’s one-dimensional consolidation theory applied to complex engineering condition of layered soil foundation and multi-stage loading is analyzed based on the characters of the great area super-hill filled sand foundation engineering. The simplified calculation model and the corresponding one-dimensional consolidation program are given to calculate soil settlement. Combined with the reclamation port construction project in Shanghai

the consolidation settlements of filled sand and soft substratum are calculated and analyzed in details by the program. Through comparison between the results of calculation and centrifuge model test

the simplified calculation model is modified; and the method for predicting and estimating the soil settlement of deep filled sand and substratum is put forward.