The capacity expansion of Kemen port in Luoyuan bay had a trait of complex geologic condition. It was planned to construct a specialized bulk yard in Kemen port. However, the great load of the process equipment and the cargo on the yard set a high requirement for the bearing capacity of the foundation soil. The approach of rockfill dumping and dynamic replacement achieved favorable results which shortened the work-period and decreased the cost of the construction. This paper carries out an analysis of the design scheme and the construction method, which may serve as reference for similar projects.