铁路大型站场既有线接触网改造施工的特点与对策

Analysis on the Features and Countermeasures for Reconstructing Catenary of Existing Railway Lines in a Large Railway Station Yard

京沪高速铁路引入济南站项目是新建2条电气化铁路联络线从京沪高速铁路济南西站引到既有京沪线济南站的工程,济南站是一个有百年以上历史的特等客站,虽然电气化改造没几年,但股道多、供电方式和接触网结构复杂,在这种情况下进行增加股道和线路拨接,进而改造接触网,施工过程非常复杂。针对配合单位多、施工环境复杂、停电时间短、运输干扰大等问题,从管理措施和技术手段上下功夫,采取有效措施,在保证不出一件行车事故和人身伤害事故的基础上,使京沪高速铁路引入济南站接触网过渡改造任务圆满完成。

Introducing Beijing-Shanghai high-speed railway into Ji＇nan railway south station is the project connecting two newly built electrified railway tie lines from Ji＇nan west station of Beijing-Shanghai high-speed railway to Ji＇nan railway south station of the existing Beijing-Shanghai railway.Ji＇nan railway station is a super class passenger station with a history of more than one hundred years.Electrification of it was carried out only a few years ago,yet in the station there are many tracks and complex power supply and catenary structures.In this case,the construction process—increasing tracks,relaying and rewiring railway lines,then transforming catenary was very complicated.Considering the problems such as many companies to be coordinated,complex construction environment,short time of power cut-off and large traffic interference,the authority adopted many management measures and technical means to ensure that any traffic accident and personal injury accidents will never happen,which enhanced the smooth completion of the project.