发展中的我国铁路列车速度、密度、重量  

China’s Railway Train Speed,Density and Weight in Developing

作　　者：田长海 TIAN Changhai(Railway Science and Technology Research and Development Center,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)

机构地区：[1]中国铁道科学研究院集团有限公司铁道科学技术研究发展中心,北京100081

出　　处：《中国铁道科学》2020年第4期127-135,共9页China Railway Science

基　　金：国家重点研发计划项目(2018YFB1201403);中国铁路总公司科技研究开发计划项目(J2018X002,N2018B006)。

摘　　要：列车速度、密度、重量三者之间既相互制约又相互促进。我国铁路近40年的发展历程可划分为挖潜扩能、铁路提速和发展高速铁路3个阶段。在挖潜扩能阶段,通过对既有线的更新改造提高列车重量和密度,快速提升运输能力;在铁路提速阶段,将提高列车速度放在首位,压缩旅客列车旅行时间,同时兼顾列车密度和重量的提高;在发展高速铁路阶段,列车速度、密度、重量按需发展、共同发展,列车速度和密度提高到了一个新的水平。未来我国铁路列车速度、密度、重量发展方向:高速铁路列车速度将向400 km·h^-1、列车追踪间隔时间将向3 min、行车密度将向190对·d^-1以上发展;高速货运动车组列车运行速度将达200 km·h^-1及以上;客货共线铁路旅客列车速度最高可达200 km·h^-1,列车追踪间隔时间最小可压缩到5 min,850 m系列到发线铁路货物列车重量可提高到4500~5000 t,1050 m系列到发线铁路可提高到5500~6400 t;动车组列车将逐步替代普通旅客列车。Train speed,density and weight are mutually restricted and promoted.The development of China’s railway in the past 40 years can be divided into three stages:potential tapping and capacity expansion,railway speed increase and developing high-speed railway.At the stage of potential tapping and capacity expansion,it is important to improve the train weight and density by upgrading the existing lines,and improving transportation capacity rapidly.At the stage of railway speed increase,the first priority is to increase train speed,reduce the travel time of passenger train,and synchronously take into account the increase of train density and weight.At the stage of developing high-speed railway,train speed,density and weight are co-developing on demand.Train speed and density have been raised to a new level.In the future,the development direction of train speed,density and weight in China is as follows:the train speed of high-speed railway will be 400 km·h^-1,the interval time of train tracking will be 3 min,and the traffic density will be more than 190 pairs per day.The running speed of high-speed freight EMU will reach 200 km·h^-1 and above.The maximum speed of passenger train on mixed passenger and freight railway can reach 200 km·h^-1.The minimum interval time of train tracking can be compressed to 5 min.The freight train weight of 850 m series arrival-departure track railway can be increased to4500—5000 t,and that of 1050 m series to 5500—6400 t.EMUs will gradually replace ordinary passenger trains.

关 键 词：速度 密度 重量 挖潜扩能 铁路提速 高速铁路 

分 类 号：U292.4[交通运输工程—交通运输规划与管理]