中文摘要：

对重载列车运行区段内旅客列车影响区和非影响区进行分析,计算旅客列车单发和连发的概率并结合既有繁忙干线重载运输实际,将区段内运行的列车分类,按运行列车组分别计算各种运行方案下旅客列车扣除系数,得出重载列车运行区段旅客列车扣除系数表达式。以扣除系数分析法为基础,提出了双线自动闭塞区段重载列车停靠站间距的分析计算方法,并针对兰新线兰武段（兰州西—武威南）重载列车停靠站的站间距进行了研究,通过计算分析,得出兰新线重载列车停靠站间距应为30~50 km。

英文摘要：

In this paper,the influence section and non-influence section of passenger trains in heavy haul train section were investigated,and the probabilities of single and tracking passenger trains were calculated.Based on existing situation of heavy haul transportation,the trains were classified according to running speed.We computed passenger train deduction coefficient of every train overtaking mode according to operation train group,and derived a formula of passenger train deduction coefficient in heavy haul section,according to which the paper proposed a method for calculating distance between stations of heavy haul of double track railway with automatic block system,and suggested the distribution program of heavy haul train stops in Lanxi-Wunan section of Lanzhou-Xinjiang railway line.Through calculation and analysis,the distance between the stations should be 30 to 50 kilometers.