the relation between foundation settlement and time always is set up by permeability-consolidation theory
but because there have many presumptive conditions and the factors acting on the permeability-consolidation
it is also very complicated
and the calculation result is always inconsistent with the observed value. By analyzing the process of the foundation settlement and characteristics of Verhulst mode
the foundation settlement of various periods after-construction can be predicted according to observed values in construction period by applying the Verhulst mode. The predicted example shows that the Verhulst mode is very effective and can be applied to the practice