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鐵路零散快運(yùn)貨物的全程貨物運(yùn)輸計(jì)劃優(yōu)化問(wèn)題研究

發(fā)布時(shí)間:2018-11-08 08:44
【摘要】:在鐵路干線能力釋放、鐵路運(yùn)輸物流化快速發(fā)展的大背景下,分析了鐵路運(yùn)輸?shù)氖袌?chǎng)狀況,包括鐵路運(yùn)輸?shù)膬?yōu)勢(shì)和短板,分析了電商平臺(tái)等互聯(lián)網(wǎng)元素的加入和物流中心的建立對(duì)鐵路運(yùn)輸?shù)挠绊?簡(jiǎn)述了鐵路運(yùn)輸產(chǎn)品應(yīng)對(duì)市場(chǎng)化需要的升級(jí)換代。對(duì)全程貨物運(yùn)輸計(jì)劃、零散貨物快運(yùn)和鐵路貨運(yùn)服務(wù)網(wǎng)絡(luò)的基礎(chǔ)理論進(jìn)行了較為詳細(xì)的分析,總結(jié)了各自的特點(diǎn),列舉了快運(yùn)班列面向的貨物品類(lèi),對(duì)全程貨物運(yùn)輸計(jì)劃下的快運(yùn)列車(chē)的作業(yè)過(guò)程進(jìn)行了較為詳細(xì)的闡述。建立了車(chē)流接續(xù)模型,以在站停留時(shí)間和運(yùn)輸費(fèi)用作為目標(biāo)函數(shù),加入了班列開(kāi)行約束、運(yùn)到期限約束、運(yùn)行線能力約束。最后在模型中加入了不確定性約束條件,給出了將不確定性模型轉(zhuǎn)化為確定性模型的方法。通過(guò)算例對(duì)模型進(jìn)行了較為全面的分析和驗(yàn)證,從數(shù)據(jù)預(yù)處理開(kāi)始,對(duì)車(chē)流的拆分方法進(jìn)行了詳細(xì)說(shuō)明,針對(duì)具體情況,定量分析了不同班列最小開(kāi)行車(chē)輛數(shù)和車(chē)流在站停留時(shí)間的關(guān)系,得出了較為合理的班列開(kāi)行最小車(chē)輛數(shù)。模型求解結(jié)果的重點(diǎn)是得出如何對(duì)車(chē)流進(jìn)行拆分和如何對(duì)車(chē)流進(jìn)行分配,即將每一支由各個(gè)技術(shù)站產(chǎn)生的初始車(chē)流拆分成一個(gè)個(gè)子車(chē)流,然后又將子車(chē)流分配到各個(gè)班列中去?紤]了車(chē)流總量超過(guò)路網(wǎng)總能力和未超過(guò)總能力的情況,在超過(guò)總能力時(shí),根據(jù)求解結(jié)果合理滯留超出路網(wǎng)能力部分的初始車(chē)流,在未達(dá)到路網(wǎng)能力時(shí),根據(jù)計(jì)算結(jié)果安排車(chē)流,刪除未分配車(chē)流的運(yùn)行線,再根據(jù)各個(gè)初始車(chē)流的生成時(shí)間,在不改變車(chē)流組織的情況下調(diào)整運(yùn)行圖,使得車(chē)流在站停留時(shí)間減少。最后加入不確定貨源,得出不同計(jì)劃兌現(xiàn)率下的車(chē)流在站停留時(shí)間以供對(duì)比參考。從跨局快運(yùn)路網(wǎng)中選取京廣快線進(jìn)行分析計(jì)算,對(duì)京廣快線沿線技術(shù)站的管內(nèi)班列的運(yùn)輸組織進(jìn)行分析,得出相應(yīng)跨局車(chē)流運(yùn)輸需求,,在給定列車(chē)時(shí)刻表的情況下得出合理的車(chē)流組織,并對(duì)運(yùn)行圖進(jìn)行運(yùn)行線刪除和調(diào)整。
[Abstract]:Under the background of the release of railway trunk line capacity and the rapid development of railway transportation logistics, the market situation of railway transportation is analyzed, including the advantages and disadvantages of railway transportation. This paper analyzes the influence of the addition of Internet elements such as e-commerce platform and the establishment of logistics center on railway transportation, and briefly introduces the upgrading of railway transport products to meet the needs of marketization. This paper analyzes in detail the basic theories of the whole cargo transport plan, the scattered freight express transportation and the railway freight service network, summarizes their respective characteristics, and lists the categories of goods facing the express transportation classes. The operation process of express train under the whole cargo transportation plan is described in detail. The train flow continuity model is established, which takes the station residence time and transportation cost as the objective function, and adds the train running constraints, the delivery term constraints, and the running line capacity constraints. Finally, the uncertain constraints are added to the model, and the method of transforming the uncertain model into the deterministic model is given. The model is analyzed and verified by a numerical example. Starting from the data preprocessing, the separation method of the traffic flow is explained in detail, aiming at the specific situation. The relationship between the minimum number of vehicles in different trains and the residence time of train flow at the station is quantitatively analyzed, and a reasonable minimum number of vehicles is obtained. The key point of the model solution is how to split the traffic flow and how to distribute the traffic flow, that is, the initial traffic flow generated by each technical station is split into a sub-flow, and then the sub-flow is allocated to each class train. Considering that the total traffic volume exceeds the total capacity of the network and does not exceed the total capacity of the network, when the total capacity is exceeded, the initial traffic flow beyond the capacity of the network is reasonably retained according to the result of the solution, and when the capacity of the network is not reached, According to the result of calculation, the traffic flow is arranged, the running line of the unallocated traffic flow is deleted, and according to the generating time of each initial traffic flow, the operation diagram is adjusted without changing the traffic flow organization, so that the train flow residence time in the station is reduced. Finally, by adding uncertain sources of goods, the stop time of traffic flow at the station under different planned delivery rates is obtained for reference. From the analysis and calculation of Beijing-Guangzhou Express Line selected from the inter-bureau express network, the transportation organization of the in-line train of the technical station along the Beijing-Guangzhou Expressway line is analyzed, and the corresponding cross-bureau traffic flow transportation demand is obtained. The reasonable train flow organization is obtained under the condition of given train timetable, and the running line of operation diagram is deleted and adjusted.
【學(xué)位授予單位】:北京交通大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2016
【分類(lèi)號(hào)】:U294.1

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相關(guān)期刊論文 前2條

1 郭新義;建立鐵路貨物運(yùn)輸計(jì)劃受理新方式[J];中國(guó)鐵路;1997年01期

2 ;[J];;年期

相關(guān)碩士學(xué)位論文 前1條

1 崔汗星;鐵路零散快運(yùn)貨物的全程貨物運(yùn)輸計(jì)劃優(yōu)化問(wèn)題研究[D];北京交通大學(xué);2016年



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