框架桥下穿铁路顶进施工时线路加固设计及施工技术

摘要

Combined with the practice of jacking construction of Xianhu Bridge approach road frame bridge under southern ring line of Litang-Nanning multiple track in Nanning, this paper introduces the design, stress checking and key technology of the railway line reinforcement scheme by using the longitudinal and horizontal lifting beam method to ensure the safety of the railway, and accumulates valuable information for similar projects.%本文结合南宁市仙葫大桥引道下穿铁路黎南复线南环线框架桥顶进施工实践,详细介绍了使用纵横抬梁法线路加固方案的设计、受力检算及施工关键技术,确保了铁路行车安全,为类似工程施工积累宝贵的资料.