长江口深水航道在国民经济发展中具有重要作用和影响 ,也是将上海市建成国际航运中心的关键问题之一 .如何解决长江口深水航道的疏浚问题 ?疏浚工艺的选择是关键技术之一 .该研究成果论证了边抛疏浚技术应用的可否 .该课题所进行的水力模型试验研究 ,其研究思路新颖、技术路线 The Yangtze River Estuary deepwater channel plays an important role in the development of the national economy and is also one of the key issues to build Shanghai into an international shipping center. How to solve the dredging problem in the Yangtze Estuary deepwater channel? The choice of dredging process is one of the key technologies. The research results demonstrate the feasibility of the application of edge polishing dredging technology.The hydraulic model test research carried out in this subject has a novel research idea and technical route