长江口深水航道建设中的浮泥研究及述评

Study on the Fluid Mud in the Yangtze Estuary

本文结合长江口深水航道建设 ,对长江口浮泥研究的现状作了全面的分析和总结 ,阐述了长江口的浮泥特点、形成条件、形成过程和演变规律。在此基础上 ,对船舶航行对浮泥层 (淤泥 )的影响、航槽回淤计算中对浮泥的处理、淤泥质航道适航水深的确定、长江口北槽形成浮泥的可能性等问题进行了分析和研究。最后 。

Generally there is a higher sediment deposit rate in the navigation channel on muddy coasts so that the constant dredge is necessary, which usually cost more in the expenditure of the port operation in those areas. In order to reduce the dredge cost, it is important to study the nautical depth, namely to determine the critical unit weight of mud that is navigable. The deep waterway regulation works is now in construction in the Yangtze Estuary. It is important to study the characteristics and variation of fluid mud in the Yangtze Estuary. This paper deals with all the aspects of fluid mud in the Yangtze Estuary, including the characteristics、forming conditions and variation、nautical depth, especially analysising the possiblity of fluid mud formation in the North Passage of the Yangtze Estuary. It concludes that fluid mud may be appear in the North Passage after construction of deep waterway regulation works.