通过对国内部分已建和在建客运专线大断面隧道的施工总结，结合生产实践，主要论述了大断面隧道的施工技术特点及开挖方法选择；并以合武铁路隧道施工为例，对隧道开挖方法进行了探讨；可为大断面隧道施工提供参考。

On basis of summarizing the experience in the construction of the passengerdedicated railway tunnels in China, the authors present the technical features of the construction the large crosssection tunnels and the selection of the excavation methods for the tunnels. Taking the construction of the tunnels on Hefei～Wuhan passengerdedicated railway as case histories, the authors furthermore probe into the tunnel excavation methods. The paper can provide reference for the construction of large crosssection tunnels in the future.