洋山港建设时期海域通道冲淤变化特征分析  

Analysis on erosion and accretion characteristics in the channel during construction period of Yangshan Harbor

作　　者：左书华[1,2] 李蓓[2] 杨华[2] 

机构地区：[1]大连理工大学海岸和近海工程国家重点实验室,大连116023 [2]交通部天津水运工程科学研究所工程泥沙交通行业重点实验室,天津300456

出　　处：《水道港口》2009年第1期14-19,共6页Journal of Waterway and Harbor

摘　　要：洋山深水港区是由大、小洋山南、北两支岛链组成,形成东窄西宽面向杭州湾开口的喇叭状水域,文章结合洋山港建设以来现场实测水文、地形资料,分析了1998～2007年洋山海域通道内地形冲淤演变情况,将洋山港通道内地形变化特征概括为:随着边界的变化,地形冲淤调整迅速;南北格局呈现出"南淤北冲"的规律;长时间尺度来看,近期地形总体趋于相对平衡,略有冲刷;短时间上看,年内冲淤变化大。为洋山港港区进一步的规划方案论证提供基本依据。Yangshan Deepwater Harbor lies in the Qiqu archipelago, which is located about 32 kilometer northwest to Luchaogang harbor in Nanhui district. The sea area is composed of south and north island chains. Based on the observation data of suspended sediment concentration and landform data from 1998 to 2007, the characteristics of landform change in the channel of Yangshan sea area are analysed. The results show that the change of landform is rapid along with the boundary change; it is obvious that the south area of channel is alluvial and the north is scoured in the near future; for a long time, as a whole the change of channel landform is balanceable, it is scoured slightly; for a short time, the annual change of channel landform is big. It will provide the basic foundation for further planning design.

关 键 词：地形冲淤 汊道 洋山深水港 

分 类 号：TV148.5[水利工程—水力学及河流动力学]