乘潮航道船舶通过能力

373大连海事大学学报Vol.37No.320118JournalofDalianMaritimeUniversityAug.,2011:1006-7736(2011)03-0024-03X江福才1,王初生2,王茂清1,刘敬贤1,王艳杰1(1.,430063;2.(),300461):基于船舶通航安全所需水深和潮汐特征,提出实际乘潮时间和乘潮富裕时间等概念,并根据水域潮汐情况计算一定乘潮保证率下船舶乘潮通航时间,从而确定该保证率下乘潮大船的通航能力,计算出包括不需乘潮船舶在内的所有船舶的通过能力.采用天津大沽沙航道相关数据对计算模型进行验证,结果表明计算具有较高的可信度.:船舶;通过能力;乘潮水位;实际乘潮时间;乘潮富裕时间;乘潮保证率:U692.4;U612.23:ATrafficcapabilityfortheshipspassingthroughthechannelbytideJIANGFucai1,WANGChusheng2,WANGMaoqing1,LIUJingxian1,WANGYanjie1(1.SchoolofNavigation,WuhanUniversityofTechnology,Wuhan430063,China;2.TianjinPort(Group)CompanyLimited,Tianjin300461,China)Abstract:Basedonthewaterdepthforships.safetynavigationandthecharacteristicsoftidalwaves,theconceptsofactualtidaltimeandresidualtimewereputforward.Theactualtidaltimecalculatingmodelundercumulativefrequencyofcertainhightidelevelwasestablishedconsideringtheinfluenceofship.sflowor-ganizationonthetrafficcapacity,andthetrafficcapacityoflarge-scaleshipsunderthefrequencywasbroughtup.Finally,thetotaltrafficcapacityofallshipspassingthroughthechannelwascalculated.DataofDa-Gu-ShaChannelinTianjinportwasusedtotesttheproposedcalculationmodel,andresultsshowthegoodreliabilityofthemodel.Keywords:ship;trafficcapacity;waterleveloftide;actualtid-altime;residualtime;assuredrateoftide0引言,,,,.[1].,,,.1航道通过能力基本理论1.1[2],(tPa)[3]3.2,.1.2[2],,Qb=1rsvW=vrWs(1):v;w;r,8L,6L;s,3.2L,1.6L;L.2船舶乘潮分析,.,6[4].,.X:2010-11-02:(1963-),,,,E-mail:[e-mail]2.1,,,,.,,:,;,,;.,,,,;,.2.2.,,h0+$h+hT\D+$D(2):h0;hT;$h.2.3,.,.,.,,,;,,,.2.42.4.1理论乘潮历时.,,.,[5].2.4.2实际乘潮历时,.,,,.[6].(),,$t1=t1-s1v1$t2=t2-t1$t3=t3-t2,,(3):$tii;tii();s1;v11.2.4.3实际乘潮时间,.:tc1=$t1r1Pv1r1v1;td1=$t1-tc1tc2=($t2P2+td1r2Pv2+$t2P2r2Pv2)r2v2td2=$t2-tc2tc3=($t3P2+td2r3Pv3+$t3P2r3Pv3)r3v3,,(4):[];tcii;tdii;.3乘潮航段大船乘潮通过能力3.1:.A,Q(A).3.2,[4].,,()Q(A)=NEni=1tciviri+(24-NEni=1tci)vr(5):N,1,2;v;r;.,,25第3期江福才,等:乘潮航道船舶通过能力(5),G,Qc(A)=GQ(A)(6)Qc(A)y=DQc(A)(7):D;.4算例验证,.12km,20km,166~346m[7].,,:,;8;10kn;.4.1,2t,2.1.1PmPmPm(A=90%)20000t166132800)))))))))100000t34627682.252.455h(2.51m)5h(2.51m)5h100000t24619682.72.94h(2.71m)2h56min(2.9m)3h28min4.2(3)(4),102.1min;89.7min.:,,44.9min;147.0min,;191.8min,.2t.4.3,(6))(8),0.6,330d,:(1)Q(90%)=248;(2)Qc(90%)=148;(3)Q(90%)y=488405结论.,;,;,.,.(References):[1],,.[J].,2008,31(3):261-264,268.[2],.[M].2.:,2004:103.[3].[D].:,2006.[4].[J].,1989,12(1):30-40.[5].[J].,1989(2):86-92.[6].[J].,1996(4):5-7.26大连海事大学学报第37卷