既有营业线上升级改造跨区间无缝线路施工

On trans-sectional jointless track in upgrading construction for existing operating line

结合既有广深准高速线上跨区间无缝线路施工工程实例,介绍了在既有线上进行跨区间无缝线路升级改造方面的施工工艺及技术,指出该施工技术具有广阔的推广应用前景和价值。

By combining with the example of the construction project for trans-sectional jointless track of quasi-high-speed on Guang-Shen road,the paper introduces the construction craft and technology for the reconstruction part in trans-sectional jointless track of existing operating lining,and points out the construction technology has wide expansion application and values.