杭南长客运专线速度目标值选择分析

以杭南长客运专线为例,在遵循高速铁路速度目标值选择原则的基础上,分析不同速度目标值对技术标准、工程数量和静态投资、旅行时间、动车组购置费以及投资效益的影响。研究结果表明:速度目标值越高,线路所选择的技术标准越高,工程数量和静态投资也随之增大,但增幅不大;杭州—长沙区段内,随着速度目标值的提高,满足旅客周转的动车组数量减少;250 km/h方案的动车购置费最低,300 km/h和350 km/h两种方案的动车购置费相差不大;350 km/h方案在节约旅行时间和投资效益两个方面占有明显优势。综合考虑各种影响因素后,建议杭南长客运专线的速度目标值采用350 km/h。

Analysis on Speed Target Value of Hangzhou-Nanchang-Changsha Railway Passenger Dedicated Line

Taking the Hangzhou-Nanchang-Changsha Railway passenger dedicated line as an example,and according to the selection principle of speed target value of high-speed railway,this paper analyzed the different speed target values which have influence on relevant aspects,including technical standard,engineering quantity and static investment,travel time,EMU's purchase cost and investment efficiency.The research results show that:( a) The higher the speed target value is,the higher the technical standards for this line will be,and the engineering quantity and static investment will also increase,but the increase will not be large.( b) Within Hangzhou-Changsha section,as the targeted speed value increases,the quantity of the EMU needed by the turnover of passenger traffic will decrease; there will be the lowest EMU's purchase cost when the speed target value is 250 km /h; and there will be little difference on EMU's purchase costs between the 300 km /h and 350 km /h speed target values.( c) The350 km /h speed target value has significant advantages in two aspects of saving travel time and boosting investment efficiency. Finally,after comprehensively consideration on all influence factors,the paper proposed that the 350 km /h speed target value should be used for the Hangzhou-Nanchang-Changsha Railway passenger dedicated line.