鐵路口岸站換裝系統(tǒng)能力計(jì)算及優(yōu)化研究
[Abstract]:With President Xi Jinping's strategy of "Belt and Road" put forward in 2013, international railway transport has ushered in an important period of development opportunities. The construction of Silk Road Economic Belt not only provides a solid infrastructure guarantee for international railway transport, but also provides a strong policy support for it. Port station is an important node in the process of international railway transport and an important gateway of our country in the Silk Road economic belt. It is mainly responsible for the transfer of international passenger trains, the transport organization of import and export freight trains, and the transfer of imported goods. With the gradual implementation of the policies of Belt and Road, the demand for international logistics is steadily increasing, and the volume of import and export trade of port stations is also increasing rapidly. As a result, the task of changing loading at port stations is becoming increasingly heavy. Therefore, the transfer capacity is very important for the smooth development of international railway transport. In this paper, the railway port stations in China are briefly summarized, with emphasis on the operation and equipment of railway port stations and customs clearance modes of port stations, according to the different railway gauge and customs clearance modes. The railway port station is divided into "co-location" port station, "two places" port station for changing operation, "two places" port station for changing operation. By analyzing the operation flow of different types of port stations and combining with the design ideas of the existing port stations' yard layout, this paper summarizes the layout patterns of different types of port stations, and provides a reference for the layout design of new port stations. In this paper, the railway port station transfer system is regarded as a three-stage series queuing system. The composition of the queuing system is analyzed. By analyzing the imbalance of the service time of the system and the influence of the interference of the station operation on the capacity of the system. A three-level queuing model of port station transfer system is established. Based on the analysis of the accumulative quantity of arrival and departure train and the relationship between the accumulative quantity of each node train and the time distribution, the equilibrium model of queue length of each node is established with the maximum capacity of the system as the constraint. Solve the reasonable configuration of each node equipment. In the closed loop queueing network system, the input flow is stable, the number of equipments in each link is reasonable, the operation in the system is optimized and the coordination between the jobs is improved, the traffic flow of the system can reach the stable state. Furthermore, the capacity of the replacement system is maximized. In this paper, the concept of time slice is introduced into the use of the optimized transfer line, and the optimal model of the operation of the changing line is constructed, and the problem of how to use the changing line into the solution of the structural diagram is put forward. Finally, taking Alashankou station as an example, this paper introduces the layout of station yard, analyzes the operation flow of wide rail imported freight train in detail, and determines the time standard of each operation according to Alashankou station. The existing capacity of the system and the capacity after flow optimization, as well as the reasonable configuration of the equipment after optimization are calculated.
【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】:2017
【分類號(hào)】:U292.5
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