超限车运行对双线铁路运能损失影响分析  

Influence analysis of transport capacity loss for out-of-gauge trains running on double-track railway

作　　者：王新宇[1] 陈治亚[1] 雷定猷[1] 张英贵[1] 

机构地区：[1]中南大学交通运输工程学院,长沙410075

出　　处：《计算机应用研究》2012年第8期2886-2890,2894,共6页Application Research of Computers

基　　金：国家自然科学基金资助项目(70971140)

摘　　要：以双线自动闭塞区段列车追踪运行为对象,充分考虑超限车运行特征,采用元胞自动机理论,提出列车运能换算、站元胞等概念;设计双线铁路列车运行的各种变换规则,分析超限车越行和禁会前后的元胞状态,构建基于CA的双线铁路列车运行仿真模型和运能损失评估模型,模拟双线区段列车运行过程,刻画超限车运行所引起的耗能特征。仿真结果表明,双线区段减少一个禁会区间时,上行方向通过能力可以少浪费15.2%,下行方向通过能力可以少浪费6.3%;综合考虑双线区段通过能力及其输送能力时,上行方向运能可以少浪费18.5%,下行方向运能可以少浪费8.8%;提出的方法能全面分析超限车运行对双线铁路运能的影响,评估超限车运行对双线铁路运能损失,为合理铺化双线铁路区段的列车运行图提供决策支持。With trains tracking in the double automatic block section as an object,taking the running characteristics of out-ofgauge trains into consideration, this paper employed cellular automata（CA） theory anal proposed some concepts, such as train capacity conversion and station cellular. Furthermore, after the design of various transformation rules for trains running in double-track railway and analyses on the cellular state during the overtaking and non-intersection, it constructed simulation model and capacity loss evaluation model of trains running in double-track railway on the basis of CA theory. In addition, it simulated the train running process in the double-track sections and described the capacity loss resulted from the out-of-gauge trains running. The simulation results indicate that, when one non-intersection is reduced in the double-track section, 15.2% of the carrying capacity of up direction can be saved and 6.3 % of the carrying capacity of down direction can be saved. Moreover, from the overall perspective of the carrying capacity and delivery capacity in the double-track sections, 18.5% of the transport ca- pacity of up direction can be saved and 8.8% of the transport capacity of down direction can be saved. In all, the proposed method can comprehensively analyze the out-of-gauge trains＇ effects on the double-track railway＇ s transport capacity, evaluate the capacity loss of double-track railway resulted from the out-of-gauge trains＇ running, and provide the decision-making supports for the train diagram in the double-track railway sections.

关 键 词：双线铁路 超限车 运能损失 CA模型 模拟仿真 

分 类 号：TP391.3[自动化与计算机技术—计算机应用技术] U294.6[自动化与计算机技术—计算机科学与技术]