客运专线桥隧交互区段箱梁过隧道施工方案比选

Construction scheme comparison and selection of transporting box girder through tunnels at bridge and tunnel staggered distribution section of passenger dedicated railway

从整体铺架及桥隧综合施工方案出发,比较了简支梁桥的各种施工方案,并研究了隧道扩孔运梁的可行性,最终采用集中预制整孔箱梁通过部分扩孔隧道运梁的施工方案,实践证明:该方案是经济、合理、可行的。

Based on comprehensive constructing scheme, different methods of simply-supported girder＇ s fabrication and erection are compared, the possibility of tunnel section expansion is researched in detail. Eventually, scheme of box girder＇ s precast and transport through section-expanded tunnel, practice proved： this scheme is economical, reasonable and practicable.