高速铁路越行站分布对通过能力的影响

研究高速客运专线越行站分布对通过能力的影响。引入“时距”概念，建立共线运行条件下的越行组模型，得到高速铁路通过能力与有关因素之间的函数关系，并用来分析越行站分布对通过能力的影响。通过实例计算分析可知，在中速列车较多、能力相对紧张的越行段，组织一站式越行，可以保证必要的通过能力；而在能力相对宽裕的越行段，组织两站式越行、三站式越行，可以提高中速列车的旅行速度。这样可以最大限度地缓解高速铁路通过能力与中速列车旅行速度之间的矛盾。

Influence on the Carrying Capacity of Overtaking Station Distribution of High-speed Railway

The overtaking stations distribution of high-speed railway has an important influence on the carrying capacity. By introducing the concept of 'time interval', the paper establishes the overtaking unit model under the condition of collinear operation and gains the function between carrying capacity and relative factors in order to analyze the influence. Taking the example and analyzing, at the overtaking section with more medium-speed trains and more intensive capacity, the necessary carrying capacity can be guaranteed by organizing one-station pattern overtaking. While at the overtaking section with relative ampleness, the traveling speed of medium trains can be improved by organizing two-station or three-station overtaking, which to the largest extent would alleviate the contradiction between carrying capacity and traveling speed of medium-speed trains.