昌九高铁全线正式进入挂网架线阶段|国产黄A三级三级三级

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  中新网南昌10月29日电 (刘力鑫 陆逸 汪翰)10月29日上午,昌九高铁全线首条接触网承力索自南昌昌北机场站附近开始架设,标志着昌九高铁全线正式进入挂网架线阶段。

10月29日,施工人员在昌九高铁昌北机场站附近进行承力索架设悬挂点固定。张杰 摄

  “挂网架线”指电气化铁路建设过程中,在铁路线路上空架设供电线路,为电力机车提供动力,是高速铁路施工过程中关键环节。此次架设的接触网承力索是整个悬挂系统的核心构件,承担着输电与结构支撑的双重作用,其架设质量直接关系到高铁列车在运行中是否能持续稳定地接收电能。

  据昌九城际铁路公司昌九指挥部副指挥长袁小军介绍,昌九高铁全线接触网工程将完成334.2条公里接触网线、26.2条公里回流线及164.1条公里避雷线的架设,预计工期7个月。

10月29日,施工人员在昌九高铁昌北机场站附近进行承力索架设悬挂点固定。张杰 摄

  “我们通过BIM技术进行了模拟,如同为工程安装了‘预演沙盘’,确保每一道工序都达到设计标准。”中铁武汉电气化局昌九项目部项目经理石朝军告诉记者,在挂网架线过程中,建设团队采用了恒张力放线设备,精准控制承力索和接触线的张力和平直度,将线缆的高度和拉出值误差控制在毫米级。

  昌九高铁是国家“八纵八横”高铁网中京港高铁的重要组成部分,是国家“十四五”规划102项重大工程项目之一。线路北起江西庐山站,南至南昌东站,正线全长138公里。昌九高铁建成通车后,将进一步完善我国高速铁路网布局,加强长江中游城市群、环鄱阳湖城市群与长三角、粤港澳周边城市群的互联互通,对于打通南北向又一高速铁路通道,助力长江经济带发展,提升江西省区域交通基础设施水平,进一步推进沿线经济社会高质量发展具有重要意义。(完)

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