Taking the project at some joint along Tangshan-Tianjin Expressway overpass railway, the paper researches the disalignment broade-ning on express bridges, indicates the difficulties in the disalignment broadening and precautions in the construction process, and achieves relat-ed conclusion, so as to provide some reference for similar projects.%以唐津高速跨铁路某节点的工程为例，对高速桥梁错孔布置加宽进行了研究，论证了错孔拓宽的难度，并提出了施工过程中应注意事项，得出的相关结论为同类工程提供了参考借鉴。
展开▼
