畅通宁西线枢纽节点南阳西站、信阳北站的策略

Strategy for Smooth Transportation of Ningxi Line Hub Nodes Nanyangxi Station and Xinyangbei Station

宁西线是连接南京与西安的一条国铁Ⅰ级客货共线铁路,东起南京永宁镇站,西至西安新丰镇站。宁西线本身是重要的陕煤外运的东西方向通道,并且横穿多条南北干线,由西向东依次连接浩吉线、焦柳线、京广线、京九线、阜六线、淮南线、京沪线。深入了解宁西线整体运输现状,寻找到影响宁西线畅通的两大关键节点,即南阳西站及信阳北站,通过对南阳西站及信阳北站生产作业情况、西峡、商南、小林口列车交接等问题的分析探讨,从机车使用、列车编组、车流迂回、车流均衡运输、补强车站车辆技术检查作业能力、统一列车风压、车站设备扩能改造,多个方面针对存在问题提出了相关解决方案,以期在货运持续增量的大背景下,促进陕煤东出、疆煤外运,提升宁西线整体能力利用率,为浩吉线增量乃至全路整体上量发挥更大作用。

The Ningxi Line is a national first-class mixed-traffic railway connecting Nanjing City in Jiangsu Province and Xi’an City in Shaanxi Province.It runs from Yongning Town Station in Nanjing City in the east to Xinfeng Town Station in Xi’an City in the west.The Ningxi Line is an important eastwest channel for the transportation of Shaanxi coal.It crosses several north-south main lines and connects the Haoji Line,the Jiaoliu Line,the Jingguang Line,the Jingjiu Line,the Fuliu Line,the Huainan Line,and the Jinghu Line successively from east to west.By deeply understanding the overall transportation situation of the Ningxi Line,this paper identified two key nodes affecting its smooth operation:Nanyangxi Station and Xinyangbei Station.Through an analysis of the production and operation of the two stations,as well as the train delivery at Xixia,Shangnan,and Xiaolinkou,this paper proposed solutions from several aspects to address existing problems such as locomotive usage,train formation,traffic flow diversion,balanced transportation of traffic flow,enhancement of the technical inspection work capacity of trains in stations,unified train wind pressure,and station equipment capacity expansion and transformation.Against the backdrop of sustained freight increment,the goal is to promote the eastward transportation of Shaanxi coal and the outbound transportation of Xinjiang coal,enhance the overall capacity utilization rate of the Ningxi Line,and play a greater role in increasing the transportation volume of the Haoji Line and even the entire railway system.