跨既有线铁路结合梁施工技术

Construction Technology for Composite Girder across Existing Railway Line

研究目的:跨既有铁路的施工在我国当前铁路建设中占有很大的比例。兰武二线古浪河大桥横跨既有铁路,本文通过对此桥32 m结合梁施工实例的介绍,为类似工程的施工提供经验。研究结果:在兰武二线古浪河大桥的结合梁施工中,采用相应的施工方案,使工程建设安全可靠,顺利完成。研究结论:既有线桥梁施工中施工方法的选择、施工步骤的确定及现场的施工组织和安全管理必须规范,方能取得良好效果。

Research purposes： The construction of works across existing railway lines takes up a significant proportion of the current railway construction in China. This paper introduces the case of construction of 32 m composite girder of Gulang River Bridge on the second line of Lanzhou - Wuwei Railway across the existing railway line to give more experiences to other similar works in construction. Research results： In the construction of composite girders of Gulang River Bridge on the second line of Lanzhou - Wuwei Railway, the corresponding construction proposal is adopted to ensure the safe, reliable and successful construction of this project. Research conclusions： The selection of construction methods, determination of construction procedures, on - site construction organization and safety control for bridges across existing lines must be standardized so as to get good effects.