滨州港外航道骤淤研究及可挖性分析

摘要

Based on Binzhou Port field observation data such as water depth,sediment,the dynamic changes and seabed erosion and siltation in Binzhou Harbor are analyzed,and sudden siltation in outer channel and feasibility of channel are discussed.The result shows that siltation in windy days will be the focus and difficulty in Binzhou Harbor.Though in the case of channel dimension and direction with Huanghua port are basically the same,the siltation of Binzhou Harbor will be worse than in Huanghua port.Binzhou Harbor waterway dredging has certain difficulties,and it is really possible to appear "the iron sand" in a certain range outside-6 m isobaths in bad weather conditions.Based on anticipation,particle size is coarser in Binzhou Harbor than in Huanghua port,and clay content is less than the Huanghua port.It is predicted that outer channel excavation(or clearing) is more difficult.%根据滨州港区水深、水文泥沙等现场观测资料,分析港区水动力变化规律和工程海域海床冲淤态势,论述外航道骤淤及可挖性.结果显示:大风淤积将成为滨州港建港后的重点和难点;在航道尺度和走向与黄骅港基本相同的情况下,滨州港建成后外航道淤积严重程度将超过黄骅港;滨州港外航道挖泥具有一定难度,且恶劣天气情况出现后,-6 m等深线外一定范围出现“铁板砂”现象的可能性极大.根据预判,滨州港回淤物粒径粗于黄骅港,且黏土含量小于黄骅港,可预计外航道的开挖(或清淤)难度较黄骅港大.