In order to solve the problems of inaccurate calculation results and great influence of human factors when applying layered summation method to settlement calculation of dredger fill preloaded foundation,the characteristics of resilience of dredger fill are studied,and an modified layered summation method for settlement calculation of dredger fill is put forward.The modified layered summation method is applied to the settlement calculation of the preloaded foundation of a dredger fill project,and compared with the layered summation method and the actual monitoring settlement.The results show that,without amending the calculation results,the calculated results of modified layered summation method are closer to the actual settlement monitoring results,with an error of about 3%.The accuracy of settlement calculation of preloaded foundation of dredger fill is improved.The modified layered summation method provides guidance for the subsequent backfill estimation and site utilization,and provides reference for similar projects.