【作者】 叶峻青；

【导师】 陈治亚；

【作者基本信息】 中南大学 ， 交通运输规划与管理， 2012， 博士

【摘要】 重载铁路集疏运一体化的建立和实施,是铁路运输彻底摆脱计划经济、主动适应市场经济发展的有效途径。重载铁路是大能力运输通道,两个端点的工作效率和协同能力决定整个系统的成败,尤其是现有端点为多客户和多技术作业环节的情况下,协同的重要性可见一斑。集疏运一体化是集疏运系统协同的表现形式。集疏运一体化的协同运输组织模式能在相当程度上缓解货流不均衡、列车随机到达而导致的压车压货现象。集疏运系统在发展运行过程中通过协同合作,形成拉动效应,降低成本、提高效率。协同的结果使各主体获益,整体加强,共同发展。加强对重载铁路集疏运系统协同的研究,不仅对重载铁路集疏运系统的建设和运用具有指导意义,而且对既有铁路集疏运系统的建设有很强的借鉴作用,能优化铁路资源配置,显著提升铁路运输能力,对促进国民经济和社会发展具有深远的影响和意义。本论文在铁道部重点项目《重载能力技术研究-大秦铁路货运组织运力配置辅助决策技术研究》的资助下,通过大量现场调研,在对重载铁路集疏运理论和实践进行总结分析的基础上,运用协同理论、运输组织理论等理论和方法对重载铁路集疏运系统协同的相关问题进行深入探讨,主要研究结论与创新点如下：(1)对重载铁路集疏运系统协同从内涵、外延、内容、层次等四个方面进行了界定。内涵就是将集、疏、运三过程视为不可分割的整体,从整体作业效率和社会效益最大化出发,统一技术作业过程、统一编制集、疏、运计划,统一组织实施的组织模式。外延包括装备协同、技术协同以及能力协同三个方面。内容包含了基本要素、作业流程、信息技术、组织管理层面、文化层面、安全层面等六方面内容。层次包含了宏观、中观和微观三个层次。(2)在1989年～2009年我国货运量及相关数据的基础上运用多元回归预测法、灰色预测法、指数外推法对2012～2016年我国铁路煤炭运输量进行预测,在此基础上运用变权重组合预测法模型对2012～2016年我国铁路煤炭运输量进行了预测精度更高的二次预测。预测结果表明铁路煤炭运输量会持续增加,需要铁路进一步提高煤炭运输能力。(3)研究了重载铁路集疏运系统协同演化原理、环境条件和动因。重载铁路集疏运系统具备自组织发生的内、外部条件,系统要素的自组织活动是重载铁路集疏运系统实现协同的内因和决定性力量。运输效率作为序参量在重载铁路集疏运系统中取得支配地位,成为该系统内部的核心。实施集疏运一体化的协同运输组织模式,可以大大提高运输效率,因此系统发展、演化的结果就是采用集疏运一体化的协同组织模式。通过协同演化方程找到平衡点,集、疏、运三方均实现了参加协同后的效益优于不参加协同供应链时的效益。从经济、政策和技术三方面分析了重载铁路集疏运系统协同形成的环境条件。从自动力和他动力两个方面分析了重载铁路集疏运系统协同形成的动因。(4)基于故障树和模糊随机Petri网对重载铁路集疏运系统协同的可靠性进行分析。对系统协同可靠性进行描述,分析了重载铁路集疏运系统的特点和可靠性模块,为方便研究对其理想化的假设和条件限定,用故障树和模糊随机Petri网对系统协同的可靠性进行分析。(5)建立了重载铁路集、疏、运三个子系统协同指标,研究了集疏运系统协同状态评价方法。集、疏、运子系统的协同指标按固定设施、移动设备、人力资源和组织技术四类又分为数量指标和质量指标,确定功效系数评价法和隶属函数协调度判断法适用于重载铁路集疏运系统协同程度评价。(6)对大秦铁路集疏运系统能力协同采用协同度模型进行分析。大秦铁路集疏运系统现阶段能力和2012年目标匹配为优良协同；集疏运系统整体协同度较低,仅为0.61；通道运输与疏运系统能力差距较小,协同度为0.8,属优质协同；集运系统中,装车点和集运线路协同度为0.91,属优质协同,湖东站和装车区的能力协同度仅为0.51,属基本不协同：集运系统与通道运输能力协同度为0.76,属基本协同,和疏运系统能力协同度为0.61,属轻度不协同。(7)对大秦铁路集疏运系统协同可靠性采用了基于故障树和模糊随机Petri网的方法进行了分析,其协同可靠度为0.723625。在对λ和τ精确值分别取±10、±15和±20%模糊化作为其上下限时计算,系统可靠度分别为0.7218396、0.7201219、0.7166781,采用模糊随机Petri网方法分析可修系统可靠度是可行和有效的。更多还原

【Abstract】 The construction and implementation of an integrative collection and distribution system of heavy haul railway is an effective way for railway transport to completely free itself from the planned economy and adapt to the market economy. The heavy haul railway is a large-capacity transport channel, but whether the whole system will be successful or not will be determined by the efficiency and synergy of the two endpoints of this channel. This is more evident in the case of that the existing endpoints are of a chain of operations featured by multi-client and multi-technology. The integrative collection and distribution system is a manifestation of the synergy organization of collecting and distributing. The cooperative transport organization mode of the integrative collection and distribution system can diminish the deposition of vehicles and cargo caused by imbalanced cargo flows and random train arrivals. During the development of the collection and distribution system, the synergic collaboration will form a pulling effect, reduce costs and improve efficiency, which will result in that all the subjects will benefit, the overall system will be strengthened and developed. To strengthen research on the synergy of the collection and distribution system of heavy haul railway, will not only provide guidance for the constriction and implementation of the collecting and distributing system of heavy haul railway, but also will offer a strong reference to the construction of the collection and distribution system of the existing railway. This kind of research will help optimize allocation of the railway resources and significantly improve the railway transport capacity, which will have far-reaching influence and significance to promote the state economic and social development.With the funding of the project "Research on the heavy-haul capacity technology and the auxiliary support technology for freight organization in Daqin railway" and based on lots of site survey, this dissertation focuses on the in-depth study of the synergic problems in the collection and distribution system of heavy hall railway. In this dissertation research, the theories and methods of Synergetics and Transport Organization are used on the basis of summarizing and analyzing the theories and practices of the collection and distribution of heavy haul railway, and the main conclusions and innovative points are outlined as followings:The connotation, extension, content, and hierarchy of the synergy of the collection and distribution system of heavy hall railway are defined. The connotation is that collection, evacuation and transportation are taken as an integrated entirety, in which it unifies the operating procedure, the integrated presentation of the collection, evacuation and transportation plan and the implemented organizational model aiming to maximize the overall operational efficiency and maximize the overall social benefits. The extension includes equipment coordination, technical cooperation and capacity collaboration. The content includes the basic elements, operational processes, information technology, organization management, culture and security. The hierarchy contains the macroscopic, medium and microscopic levels.Different prediction methods, including the multiple regression prediction, the gray prediction and the extrapolation index, are used to predict the railway transportation volume of coal in china from2012to2016, based on the related data of railway freight volume from1989to2009in China. Moreover, this dissertation predicts China’s railway transportation volume of coal from2012to2016more accurately by means of Weight-varying Combination of Forecast Models. The prediction results show that the railway transportation volume of coal will continue to increase and the railway transportation capacity needs to be further improved for coal transportation.The principle, the environmental conditions and the driving forces of the synergic evolution of the collection and distribution system of heavy hall railway are studied. The collection and distribution system of heavy haul railway is satisfied with internal and external conditions to produce self-organization. The self-organizing activities of the system elements are the internal and decisive force for the collection and distribution system of heavy haul railway to achieve coordinated development. Transport efficiency as the order parameter gains a dominant position in the collection and distribution system of heavy haul railway and becomes the internal core of this system. The implementation of synergistic organization mode of the integrated collection and distribution will greatly improve the efficiency of transportation; therefore the result of development and evolution the system is the utilization of the synergistic organization mode of the integrated collection and distribution. The collaborative evolution equations are used to find a balance under which all the three parties of collection, evacuation and transportation in collaboration gain more benefits than not in collaborative supply chain. From economic, policy and technical perspectives, the environmental conditions for forming synergy in the collection and distribution system of heavy haul railway are analyzed. From the two aspects of self motivation and non-self motivation, the driving force of forming synergy in the collection and distribution system of heavy hall railway is analyzedThe reliability of the synergistic collection and distribution system of heavy haul railway is studied based on the fault tree and fuzzy stochastic Petri net. The collaborative reliability of the system is described, and the characteristics and reliability module of the collection and distribution system of heavy haul railway are analyzed. With the idealized assumptions and the limited conditions, the fault tree and fuzzy stochastic Petri net are used to analyze the reliability of synergies of the system.The synergy index of the three subsystems of collection, distribution and transportation of heavy haul railway is established. The evaluation method of the synergistic collection and distribution system is studied. The synergy index is divided into quantity indicators and quality indicators. The membership function coordination judgment method adapts to the evaluation of synergy degree of the collection and distribution system of heavy haul railway.The collaborative model is used to analyze the capacity of the collection and distribution system of Daqin railway. At current stage, the capacity of the collection and distribution system of Daqin railway exactly matches the target for the year of2012, which denotes the excellent collaboration. The collaboration of the collection and distribution system in its entirety is low, only with a value of0.61. The gap between the channel transport and the distribution system capacity is small, with a synergy degree of0.8, which denotes high-quality collaboration. In the collection system, the synergy degree of the loading point and the group lines is0.91, which denotes high-quality collaboration; but the synergy degree of the capability of the East Lake Station and the loading areas is only0.51, i.e. it is basically non-collaborative. The synergy degree of the capability of the collection system and the channel transportation is0.76, and it is a basic synergy. The synergy degree of the capability of the collection system and the distribution system is0.61, and it is a mild synergy.The fault tree and the fuzzy stochastic Petri net are used to study the collaborative reliability of the collection and distribution system of Daqin railway. The collaborative reliability is0.723625. After a blurring calculation of±10,±15and±20%as their upper and lower to the precise value of λ and τ, the system reliability becomes0.7218396,0.7201219and0.7166781. This denotes that using the fuzzy stochastic Petri net to analyze the reliability of the fixable system is feasible and effective.更多还原