长江口外高桥六期码头港池泥沙回淤分析长江口外高桥六期码头港池泥沙回淤分析1,23刘卫平,张金善,,上海200093,(集团)股份有限公司,上海200082,,江苏南京21002,4摘要:概述长江口外高桥六期码头工程河段的河势及水流泥沙条件,并对临近的外高桥一、二期港池泥沙回淤现状进行调查分析。通过吴淞口至横沙水道的平面二维潮流数学模型,分析工程实施对水流的影响。最后通过半经验公式结合数模结果对本期工程码头港池、调头区及引起的周边泥沙回淤进行预测估算,结果显示,工程实施对码头上下游一定范围内水流有影响,其中码头桩基附近平均流速最大减少30%左右。:,,:,年回淤量约11万m。关键词:外高桥六期,数学模型,泥沙回淤,港池,码头+中图分类号::A文章编号:1002-497,22009,05-0032-07SedimentsiltationatWaigaoqiaoPhaseVIharborbasinoftheYangtzeEstuary1,23LIUWei-ping,ZHANGJin-shan(,Shanghayi200093,China;(Group)Co.,Ltd.,Shanghai200082,China;&munications,Nanjing210024,China)Abstract:Theriverregimeandcurrent&sedimentconditionsoftheriverreachwheretheYangzetEstuaryWaigaoqiaoPhaseVIwharflocaestisdescirbed,andthestatusofsedimentlstaitionattheneighboirngharborbasinsofWaigaoqiaoPhasesI&-DcurrentmathemaicaltmodelforthechannelbetweenWusongkouandHengsha,weanalyzedtheeffectoftheengineeinrg′-binedwiththeresuloftmathemaicaltmodelexperiment,wepredictedandesitmatedthesedimentsiltationattheharborbasin,′ineesimprlementaiontexertsaninfluenceonthecurrentwithinacertainscopeofriverareaatupstream-downstream,esp.,theaverageflowratenearthewharf′spilefoundaitonhasamaximumreducitonof30%.:,andtheannualbac-;:,andtheannualbac-:WaigaoqiaoPhaseVI;mathemaicaltmodel;sedimentltastiion;harborbasin;wharf[1]岛涨潮槽是瑞丰沙嘴形成过程中的伴生物,两者之1外高桥水域自然条件间有相辅相成的密切关系。目前涨潮槽-,,东西绵延长达31km。南港曾经历支南港南岸、高桥咀下游的五号沟地区,,
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