Subgrade graded filling construction settlement prediction method and system

The invention provides a roadbed graded filling construction settlement prediction method and system. The method comprises the following steps: acquiring settlement data at the early stage of stopping and pre-pressing under each grade of filling load; according to the settlement data, the final settlement amount of the foundation under each stage of filling load is predicted; the standard settlement moment of the foundation is calculated according to the final settlement amount of the foundation; pre-pressing later settlement data are obtained; according to the settlement data in the later period of pre-pressing, the monitored settlement amount and the deep horizontal displacement rate of each stage of filling load at the standard settlement moment are calculated; and judging whether the stability of the project meets the requirement or not according to the monitored settling volume and the deep horizontal displacement rate. By calculating the settlement amount of the foundation and the horizontal displacemen