Abstract：Lots of engineering examples show that the exponential curve models，for either single-stage loading or multi-stage loadings，can well predict foundation settlement，but they have shortcomings. A new type of exponential curve model，coupled with rheological term for soft soils，is put forward based on the calculation formula of modified secondary compression under absolute time coordinates. The parameters are back-analyzed with the optimization technology according to the measured settlements. It is proved that the new model holds higher prediction accuracy and can reasonably reflect the creep course of soil framework. Hence，it has referential value to practical engineering.
