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介绍在福建某公路隧道内采用探地雷达技术检测隧道混凝土衬砌结构，并通过检测探明蜂窝、裂缝、空洞积水等隧道病害的成因与机理。
This paper introduces the use of GPR to detect the tunnel lining structure in a highway tunnel in Fujian province and to detect the causes and mechanisms of the tunnel diseases such as honeycomb, cracks and cavitation.