There is no perfect calculation method for soft foundation instant settlement at present. And the environment of the seaside soft foundation is very complicated. As the foundation is always affected by the tide
in general
there exist embankments in the two sides. The measurement data from a seaside road foundation treatment project in Xiamen are used to analyze instant settlement
on the condition of considering the influences of embankment. Finally the instant settlement calculation method is established. As the parameters about the method are obtained from the measurement data in Xiamen area
then it can calculate the soft foundation instant settlement very well there; in addition it also can be used for some other places in the similar conditions.