Taking the tunnel in Ningbo city as the background, the article introduces the tunnel monitoring and t contents and methods, analyzes the actual testing ground surface subsidence and arch top subsidence in the construction, and evaluates the tunnel construction safety. As a result, it guarantees the construction security at tunnel entrance section.%以宁波市某隧道为背景,介绍了该隧道监控量测内容和方法,分析了施工中实测的地表沉降、拱顶沉降,并对隧道施工的安全进行了评估,保证了隧道进口段的施工安全。
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