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时间:2020-04-17
《长江下游南通至南京段深水航道设计通航标准研究-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、2014年1月水运工程Jan.2014第1期总第487期Port&WaterwayEngineeringNo.1SerialNo.487长江南京以下12.5m深水航道建设”专栏(1O)长江下游南通至南京段深水航道设计通航标准研究徐元,黄志扬(中交上海航道勘察设计研究院有限公司,上海200120)摘要:随着江苏沿江港口发展和沿江经济产业带布局的实施,长江南京以下河段航道的能力提升和标准提高已成迫切需要。根据工程河段沿程自然务件与工程限制条件、港口与地方经济需求和船舶大型化要求,分区段论证了适合的通航设计船型、设计通航标准和航道建设规模,提出深水航道的尺度取值
2、原则并给出主要区段的推荐取值。基于工程河段水文条件的时空变化特点,给出各设计船型不同水位保证率的限制吃水,并认为通航管理中应充分考虑大型船舶限制吃水的季节变化。关键词:船舶大型化;通航设计船型;设计通航标准;航道尺度取值;船舶限制吃水中图分类号:U612文献标志码:A文章编号:1002—4972(2014)01—0001—09DesignednavigationalstandardsfordeepwaterchannelinthelowerstretchoftheChangjiangRiverbetweenNantongandNanjingxuYuan,H
3、UANGZhi-yangfShanghaiWaterwayEngineeringDesignandConsultingCo.,Ltd.,Shanghai200120,China)Abstract:AsportsandharbourshavebeendevelopingrapidlyandriversideindustrialzonesboominginrecentyearsalongsidetheChangjiangRiverinJiangsuprovince,itisurgenttoimprovetheexistingnavigablechannels’
4、abilitytohandletraficandadoptsevererstandardsfornavigablewaterwaysinthelowerstretchoftheChangjiangRiverdownstreamofNanjing.ThelowerstretchoftheriverdownstreamofNanjingcouldbedividedintotwopartsattheplacewhereJiangyinbridgelocates.Thispaperdemonstratesappropriatedesignvessel—typesf
5、ornavigation,designednavigationalstandardsanddesiredgeometryanddimensionsofchannelsalongtheriverinconnectionwithphysicalconditionsandengineeringrestrictions,demandsofportsandlocaleconomicdevelopmentandthesailingrequirementsoflargerships.Itproposestheprincipleonvalue—-takingfordesi
6、redgeometryanddimensionsofdeepwaterchannelsandfurthergivesrecommendedvaluesinthemainsections.Basedonthespatialandtemporalchangesinhydrographicconditionsinthestudiedriverstretch,thepapergivesthelimiteddraftsfordesignvessel-typeswithdifferentallowableunder—keelclearanceatdifferentwa
7、terlevelguaranteerates,andshowsthattheseasonalchangesindraftlimitationoflarge-scaledvesselsshouldbetakenintoaccountinshipoperations.Keywords:enlargementofship;designvesseltypefornavigation;designednavigationalstandards;value—。takingofdesiredgeometryanddimensionsofnavigableChannel;
8、allowableunder——keelclearance随着改革
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