Detection technology using geological radar for inspecting of lining quality of tunnel on high speed railway

The tunnel lining quality detection of high-speed railway has several prominent characters,such as tight schedule,heavy tasks,many influencing factors and difficult collaboration.For characteristics and requirements of high-speed railway,this paper summarized the detection methods and processes of operational tunnel lining quality systematically on the basis of several railways detection experience,including basic data collection,the actual measured line layout,the radar antenna frequency and parameter selection,on-site testing,the detection data analysis and judgment,and presented the character radar profile of common diseases and on-site verified image,which could provide a reference for the detection and diagnosis of tunnel lining disease effectively.