焦柳铁路超限坡区间扩能改造方案研究

超限坡对列车运行速度和线路输送能力均有很大影响,是既有单线铁路扩能改造工程的重要制约因素。为解决既有单线铁路超限坡问题,增大铁路输送能力,提高列车运行速度,阐述焦柳铁路超限坡区间现状,结合单线铁路怀化至柳州段电气化扩能改造工程,提出既有线补机牵引方案、既有线大功率机车动能闯坡方案、展线软化坡度方案及局部增二线方案4个扩能改造方案。在此基础上,结合焦柳铁路超限坡区间与机车选型匹配性分析,经方案比选研究,得出焦柳铁路超限坡区间扩能提速改造方案,为我国单线铁路超限坡区间扩能改造提供借鉴。

A Study on the Capacity Expansion and Renovation Plans of the Over-limit Slope Section of the Jiaozuo-Liuzhou Railway

The over-limit slope,as an important influencing factor on the capacity expansion and renovation project on the existing single track railways,has a great influence on both the speed of the running trains and the delivery capacity of the railway.To increase the capacity and running speed,based on an overview of the current conditions of the over-limit slope section on the Jiaozuo–Liuzhou Railway and the electrification and capacity expansion project of its single track section from Huaihua to Liuzhou,this paper puts forward four capacity expansion and renovation plans:adding locomotives to the existing railway,climbing slopes by high power locomotives on the existing railway,slowing the slope through extending the railway,and building a parallel line in parts of the railway.To provide evidence,this paper concludes with the recommended plan based on a comparative analysis of the four proposals on the compatibility between the conditions of the over-limit slope section and the types of the locomotives.