6Xiuzhong Li, Jingshun Qiao, Qingsheng Lv, et al. Method research on bridge hollow slab detection by ground penetrating radar[A]. In: Proceedings of the 3^rd International Conference on Environmental and Engineering Geophysics, Near-Surface Geophysics and Human Activity[C], Wuhan, China: 451- 455.
7Paulo J. S. Cruz, Lukasz Topczewski, Francisco M. Application of radar techniques to the verification of design plans and the detection of defects in concrete bridges [J]. Structure and Infrastructure Engineering, 2008(0) : 1-13.
8Hugenschmidt, J. , 2004, Accuracy and reliability of radar results on bridge decks. Proceedings of the 10^th International Conference on Ground Penetrating Radar, June 21-24, 2004, Delft, the Netherlands.
9Cantor, T. R. and Kneeter, C. P. , Radars as Applied to Evaluation of Bridge Decks. Transportation Research Records. 1982(853) :. 37-42.
10Kenneth R. Maser. Integration of Ground Penetrating Radar and Infrared Thermography for Bridge Deck Condition Testing [J]. Materials Evaluation, 2008. 11.
