跨铁钢箱梁架设临时支墩设计检算

Design check of temporary buttress elected for steel box girder over railway

针对基底软弱且临近既有线路的施工情形,建议采用大跨度组合钢箱梁跨越铁路线。介绍了采用扩大基础与钢管桩基础相结合的跨铁钢梁架设临时支墩基础的施工方法。

For the case of a weak base and the closeness to the existing railway lines, the large-span compsite steel box girder was suggested to span the railway line. We introduced a new construction method to combine the expanding foundation and steel-pipe-pile foundation as the temporary buttress bases for the crossing iron-steel beam erection.