Differential settlement of track beams before and after gravity quay has long been a difficult problem to harbor construct.The front track beams act on caissons,the settlement is not large,and the settlement process can be basically completed during construction period.The rear track beams generally act on prisms,and tamping measures are generally not adopted considering the safety of caisson.The backfill itself is compacted,resulting in a significantly large settlement during the service period,which affects the operation of the equipment.If the cast-in-place pile foundation is adopted,because the cast-in-place pile needs to penetrate prism with block stone or karst stone,which brings great difficulty to the construction of cast-in-place pile.Taking Caofeidian Coal Terminal of Guotou as an application example,this paper adopts prism multi-layer dynamic consolidation technology on land and underwater,which effectively alleviates the differential settlement between front and rear rails,obtains good economic and social benefits,and provides a reference basis for the design and construction of similar engineering structures.