文章以得大高速肖家寨特大桥为实例,介绍了大跨径预制T梁桥上跨铁路的施工方案,从而为其他类似项目施工积累经验,同时保证铁路行车安全。 In this paper, a case study of the Xiaojiazhai Bridge, which is a large high speed railway, is presented as an example to introduce the construction plan of the large span prefabricated T - beam bridge across the railway so as to accumulate experience for the construction of other similar projects and ensure the traffic safety of the railway.