既有电气化铁路线路拨接接触网过渡施工技术的探讨

Study on Catenary Construction in the Transition Period of Track Lining and Joining of Existing Electrified Railways

以木道沟桥改建工程最关键技术为实例,探讨了线路拨接施工中线路不同拨距时,接触网施工过渡方法,分析了线路拨接的技术重点和难点,打破既有电气化铁路线路拨接的常规模式,采用“利用既有、永临结合”的过渡施工方法。

Taking the Mudaogou Bridge Reconstruction Project as an example, the paper analyzes the crucial and difficult points of techniques in track lining and joining and breaks through the conventional mode of track lining and joining of existing electrified railway lines. Construction method is carried out under the principle of utilizing the existing to the utmost and integrating permanent and temporary works as a whole in the transition period of track lining and joining.