Experimental Analysis of Refined Detection of Void behind Tunnel Lining Using ImpactEcho Method
FANG Xiaozheng1, 2, XUE Yadong1, 2
(1. Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China; 2. Department of Geotechnical Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, China)