既有线改造插铺道岔施工安全技术

Construction safety technique of inserted laying switchin accomplished line transformation

以朔黄铁路肃黄段增二线工程为材料背景，从施工准备、工艺流程、封闭点内施工等方面介绍了既有线改造插铺道岔的施工技术。并提出了安全保证措施，达到营业线施工安全的目的。

Combined with add second-line construction in Su-Huang section in Shuo-Huang railway, it introduces construction technique of inserted laying switch in accomplished line transformation from construction preparation, technological process, sealing construction, and puts forward safe assurance measure to make the operating line construction safe.