营业铁路并行三线改建施工技术

以京沪高速铁路修建引起既有京山铁路并行三线改建为例,详细介绍多条线路改建：营业线间存在高差的新旧线路拨接、补碴大机捣固等多次循环施工的综合技术,以及在拨接封锁点内,工务、电务、接触网、大机养护专业交叉作业的组织与协调,安全防护措施等经验做法。

Reconstruction Technology of Three Parallel Railways

Taking the reconstruction of Jing-Shan three parallel railways caused by the building of Beijing-Shanghai Express Railway as an example,the paper gives a detailed introduction to the integrated technology of connection and repeated consolidation of ballast machine as well as the organization and coordination of workers,electricity,interaction network,maintenance of equipment,safety measures so as to provide reference for similar project.