基于分区优化的高铁车站通过能力提高方法

车站通过能力是铁路能力的一个关键制约点，本文通过降低咽喉长度对车站作业间隔时间的影响，扩大高铁车站通过能力. 分析车站分区的划分原则及方法，研究车站进路关系模型及作业间隔时间的计算方法. 以通过列车数量最大化为目标，考虑车站作业间隔时间，不同作业类型列车比例等约束条件，建立基于分区划分的车站通过能力优化模型及算法. 案例分析表明，不同作业类型列车比例及组合方式对能力的影响较大，分区划分车站咽喉区可有效减少列车作业间隔时间，提高车站通过能力.

A Method for Expanding Station Carrying Capacity of High-speed Railway Based on Block Optimization Method

The station carrying capacity is a key constraint of railway capacity. This paper increases the capacity of a station by reducing the influence of throat length on the interval time between the trains on the station. Based on the analysis of the principles and method of the division of station blocks, the relationship model of train routes and the calculation method of operation interval time are studied. Then, the simulation model and algorithm of station carrying capacity are established. The model takes the maximal number of trains allowed on the station as the objective function, and the model constraints include the interval time, the proportion of different train types, and the buffer time. Finally, a case study on a station verifies the effectiveness of the method. The proposed method in this paper can effectively increase the carrying capacity of high-speed railway stations.