A study of suspended sediment concentration in Yangshan deep-water port in Shanghai,China

作     者：Shu-hua ZUO Ning-chuan ZHANG Bei LI Shen-liang CHEN 

作者机构：Key Laboratory of Engineering Sediment of Ministry of CommunicationsTianjin Research Institute of Water Transport Engineering State Key Laboratory of Coastal and Offshore EngineeringDalian University of Technology State Key Laboratory of Estuarine and Coastal ResearchEast China Normal University 

出 版 物：《International Journal of Sediment Research》 (国际泥沙研究(英文版))

年 卷 期：2012年第27卷第1期

页      面：50-60页

核心收录：

学科分类：08[工学] 081502[工学-水力学及河流动力学] 0815[工学-水利工程] 

基　　金：supported financially by Western Traffic Construction Technology Projects of the Ministry of Communications of China(No.200632800003-04) the Shanghai Science and Technology Committee(No.0923120050-3) the Fund of Tianjin Research Institute of Water Transport Engineering of China(No.TKS 100103) 

主　　题：Yangshan deep-water port Hydrodynamic Suspended sediment concentration(SSC) Strait-channel effects 

摘      要：Suspended sediment concentration(SSC) plays an important role in the estuarine *** spatial or temporal variations in coastal zones and estuaries indicate that sediments are suspended, transported and deposited under various actions,such as the river discharge,waves,currents and local *** deep-water port is located in the Qiqu Archipelago with many islands and tidal *** Yangshan deep-water port sea area as an example,an analysis of distributions and variations in the SSC based on data measured in Oct.1996,Jan.1999,May 2006 and May 2007 and the surface SSC data measured during the period from 1998 to 2008,has been *** from the study suggest that:(1) the yearly-averaged SSC decreased from 1998 to 2008;(2) the SSC has strong seasonal variations,the monthly-averaged SSC values are higher from November to April of the next year(the winter half year) than from May to October(the summer half year);(3) the periodic nature of the changes are obvious,which is consistent with a tidal semimonthly cycle of approximately 14.8 days;(4) the vertical distribution which is an e exponential distribution increase from the surface to the ***,the data indicate that tidal currents are the most dominant factor affecting the *** the Yangtze River discharges abundant sediments to the study area,it does not directly affect concentration variations in seasonal time *** in yearly variation or long time scales,the SSC varying trend is coincident with sediment discharge change of the Yangtze *** addition,the construction projects,or dumping of sediments,have obvious effects on SSC and sedimentation for part of the area.Strait-channel effects have some degree of influence to the SSC distribution around islands.