深圳铜鼓航道回淤特征研究  

Research on back siltation characteristics of Tonggu Channel in Shenzhen

作　　者：韩志远[1] 马定强 欧阳群安 HAN Zhi-yuan;MA Ding-qiang;OUYANG Qun-an(Tianjin Research Institute for Water Transport Engineering, National Engineering Laboratory for Port Hydraulic Construction Technology, Key Laboratory of Engineering Sediment, Ministry of Transport, Tianjin 300456, China;CCCC Guangzhou Dredging Co. Ltd., Guangzhou 510290, China)

机构地区：[1]交通运输部天津水运工程科学研究所,港口水工建筑技术国家工程实验室,工程泥沙交通行业重点实验室,天津300456 [2]中交广州航道局有限公司,广州510290

出　　处：《水道港口》2021年第1期39-44,共6页Journal of Waterway and Harbor

基　　金：国家重点研发计划项目(2016YFC0402602);中央级公益性科研院所基本科研业务费专项资金项目(TKS190502)。

摘　　要：文章基于深圳铜鼓航道实测回淤监测资料,研究了铜鼓航道段的回淤特征,探讨了航道回淤机理。研究结果表明:(1)铜鼓航道沿程回淤分布曲线出现两个锋值,回淤主峰值位于K21里程以北区段,次峰值位于K10~K16里程区段,K7~K9里程区段、K17~K18里程区段回淤较小;(2)铜鼓浅滩滩面泥沙及上游来沙是铜鼓航道回淤泥沙的主要来源,航道回淤的主要形式为悬沙落淤;(3)铜鼓航道K21以北航道回淤较大与铜鼓浅滩东部河口峰的存在导致泥沙易于落淤;(4)受洪季上游来沙量大、台风浪较大的影响,铜鼓航道洪季淤强相对较大。Based on underwater topography data of Tonggu Channel in Shenzhen,the back silting characteristics of Tonggu Channel in Lingding Bay were analyzed in this paper.Sediment supply and the cause mechanism of the back siltation were studied finally.The main research conclusions were showed as follows:There were two peaks in the curves of siltation value along Tonggu Channel.The main peak value was located at north of K21 section of the channel,and the sub-peak value was located at K10~K16 sections of the channel.The siltation value at K7~K9 sections and K17~K18 sections were relatively small.Sediment from Tonggu Shoal and river sediment load were the main sedimentary sources of Tonggu Channel,and the sediment deposited in the channel was mainly came from the suspended sediment transporting by the tidal current.The greater siltation at north of K21 section of Tonggu Channel was related to the silting process caused by the estuary front at the eastern Tonggu Shoal.During flood season,impacted by the increasing sediment load from the Pearl River and typhoon waves,the back silting intensity of Tonggu Channel was relatively large throughout a year.

关 键 词：铜鼓航道 回淤特征 伶仃洋 深圳 

分 类 号：TV148[水利工程—水力学及河流动力学] P753[交通运输工程—港口、海岸及近海工程]