主要介绍在扩建天津港 10万 t级航道的设计中 ,对其主要的设计参数进行研究优化 ,采用分段乘潮、分段备淤、单侧加宽等方法 ,并从时间上采用分期建设的方式 ,节省了大量资金 In the design of the expansion of Tianjin Port 100,000 t-class waterway, the main design parameters are studied and optimized. The methods of sectional tide, section siltation and unilateral widening are adopted, and the construction by stages is adopted The way to save a lot of money