我國煤炭沿海運輸基地分撥模式研究.pdf

1、大連海事大學碩士學位論文我國煤炭沿海運輸基地分撥模式研究姓名：劉猛申請學位級別：碩士專業(yè)：物流工程與管理指導教師：陳超20100601英文摘要ABSTRAcTThispaperaddressesthestudyoftheBase—DistributionStructureModelforDomesticCoastalCoalShipmentDuetotheunbalancebetweenthecoalprovenanceandconsu

2、mptioningeographyalargequantityofcoalneedstobetransportedwithinChinaThecoaltransportationstructureofwesttoeastandnorthtosouthhasbeenmade，andwhichshippingstructuremodelshouldbeadoptedisthebasicdecisiontoreducethecostandin

3、creasethestabilityofcoalshipmentTodaytheDirectShippingModelisusuallyemployedinthecoastalcoalshipmentinChina：ashipisfullyloadedinanorthloadingportthensailstoasouthdischargingportandisdischargedemptyABase—DistributionModel

4、isproposedinthispaperfromthegeneralinterviewofthewholecoastalcoalshippingsystem：thecoalisshippedbybigshipsfromnorthportstOatransshippingbaseinthesouthanddischargedempty(Hub—Ship)，thenthecoalisreshippedbysmallershipsfromt

5、hetransshippingbasetothefinaldestinationports(SpokeShip)TheproblemdiscussedinthispaperisalloptimizationoftransportationsystemThekeyissueistochoosetheoptimalsizeofshipstObeusedTheproblemisformulatedasathree—stageproblemFi

6、rstamathematicanalysismethodisemployedtoillustratetheHub—ShippingcostandthemosteconomicalsizeofshipstobeusedintheHub—ShippingprocessCanbegotSecond，amathematicprogrammingmethodisdevelopedtogetthelowestSpoke—ShippingcostTh

7、ird，therangeofshipsizecallbeusedintheHubShippingprocesswillbegotfromtheresultsoftheformertwostagesThroughempiricalexperimentsandcomparisons，resultsshowthattheproposedBase—DistributionModelcallprovideamoreeconomical，relia

8、bleandstablesolutiontotheprogramthantheDirectShippingModelBesides，TheBaseDistributionModelalsocallprovideamoreeffectiveapproachtotheoptimizationofcoastalcoalshippingnetworkstructuresandoperationsthantheDirectShippingMode