简述了隧道施工中单向出洞方式的优点，并以云南省富龙高速公路平耶隧道为例，从施工动态设计、辅助措施、开挖方式等方面，探讨了单向出洞的施工关键技术，指出该技术加快了施工进度、节约了投资、提升了洞口形象。%The paper briefly describes merits of unidirectional unkennel method in tunnel construction,taking Pingye tunnel on Fulong highway in Yunnan province as an example,starting from aspects of construction dynamic design,auxiliary measures,and excavation methods,it explores critical unidirectional unkennel construction technologies,and finally points out that:the construction technology speeds up construction sched-ule,saves investment,and improves tunnel entrance image as well.
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