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한자경 ( Hahn Ja-kyung ),김형우 ( Kim Hyung-woo ),최광철 ( Choi Kwang-chul ) 한국구조물진단유지관리공학회 1998 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.2 No.2
In this study, the GPR (Ground Penetrating Radar) is applied to outside plant telecommunication facilities such as cable tunnels, manholes and underground conduits. The thickness and soundness of tunnel lining can be evaluated, and the location of rebars and steel ribs can also be found effectively. The location of underground conduits as well as manholes can be found and the results of GPR give good coincidence with design drawings. The GPR can be utilized to identify the cracks that happened in concrete structure. In order to investigate the tunnel ling, the GPR mounted vehicle is developed and it is proved that the vehicle can save time and manpower.