洋山深水港区进港外航道台风期适航水深研究*

为了减小航道维护的工程量,减少台风期所造成的损失,开展洋山深水港区进港外航道台风期适航水深研究。通过对航道及其附近浅滩底质及浮泥样品的密度、盐度、颗分分析,并进行航道沉积物的沉降特性试验、流变特性试验以及泥沙起动试验等内容的研究,提出洋山港区航道的适航密度,并应用SILAS走航式适航水深测量系统成功获得了适航水深测量成果,在淤泥质港口的水深维护应用中具有较好的推广价值。

On navigable depth of outer approach channel of Yangshan deepwater port within typhoon period

In order to reduce the maintenance volume and the loss caused by the typhoon, we carried out a study on the navigable depth of the approach outer channel of Yangshan deepwater port area within the typhoon period. Based on the density, salinity and particle analysis of the bottom sediment and mud sample in the channel and shoal, and a research on the waterway sediment characteristics of settlement, rheological property and sediment incipient, we put forward the navigable density of waterway in Yangshan port area, and gain the seaworthiness bathymetry applying the SILAS measure system, which has good promotional value in the maintenance of silty port.