昆明地铁6号线大跨度连续梁上跨沾昆铁路顶推施工技术的应用

Application of Top Pushing Construction Technology of Long-Span Continuous Beam on Kunming Metro Line 6

昆明地铁6号线的李其村特大桥,需上跨沾昆复线铁路和秧田冲铁路专用线。为了不中断沪昆铁路的运营,最大限度地减少对国家铁路干线的影响,经研究比较,采用现场预制大跨度连续梁顶推施工技术,成功跨过运营线路,顺利实现6号线建设目标,这个技术方案在昆明地铁建设中的应用尚属首次。

The Liqicun Bridge on Line 6 of Kunming Metro is required to cross the Diankun Double Track Railway and the dedicated line of the Yangtian Chong Railway. In order not to interrupt the operation of Shanghai-Kunming Railway and minimize the impact on the national railway trunk line, through research and comparison, it adopted the prefabricated large-span continuous beam pushing construction technology on site, successfully crossed the operation line and successfully achieved the construction goal of Line 6. This technical solution is applied in the construction of Kunming subway for the first time.