福姜沙水道近期河道演变特性

福姜沙水道位于长江下游澄通河段中部,为长江下游河道冲淤变化较剧烈、碍航最严重的水道之一.为了满足沿江和上游港区的发展需要以及深水航道向上延伸的建设要求,结合相关资料对福姜沙水道近期河道演变及演变特性进行分析,认为福姜沙洲前段和如皋中汊近年保持稳定,略有冲刷,双涧沙上部及沙头冲淤进退对福中及福北水道影响较大,深槽不稳定,深泓摆动较大,是影响福北和福中水道航道条件的关键洲滩.

Evolution characteristics of Fujiangsha shoal channel

The Fujiang sand shoal channel is located in the lower Yangtze River, which is one of the most dramatic changes and navigation obstruction channels in the lower Yangtze River. To meet the development requirement of riverside area and upstream port and the construction needs of extension upward the deep water channel, we analyze the evolution characteristics of the Fujiang sand shoal with relevant information, and get to know that the head of Fujiang sand shoal and the middle waterway of Rugao remain stable and slight erosion in recent years. The erosion and deposition of the head of Shuangjiang shoal has a greater impact on the north and middle of Fujiangsha waterway. The deep trench is instale, and the thalweg swings a large range area, which is the key part of the waterway regulation.