Tunnel construction is the most important link in the construction of railway and highway. It is an important guarantee for road construction to analyze the safety risk of tunnel construction and take relevant measures to control it. This paper mainly analyzes the construction of TJ-1 section of highway engineering from Xi'ning to Shangxinzhuang in Laochengguan section of national highway 227.%在铁路、高速公路等道路建设施工中, 隧道施工是其中最为重要的一个环节, 对隧道施工的安全风险进行分析并采取相关措施进行控制是道路建设顺利进行的重要保障.论文主要对国道227线老城关经西宁至上新庄段公路工程土建TJ-1标段的施工进行分析.
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