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Ground-penetrating imaging radar development for bridge deck and road bed inspection
| 题名： | Ground-penetrating imaging radar development for bridge deck and road bed inspection |
| 作者： | Warhus, J. P.; Mast, J. E.; Nelson, S. D.; Johansson, E. M. |
| 关键词： | Bridges; Roads; Nondestructive Testing; Radar; Algorithms; Data Acquisition Systems; Design; Inspection |
| 摘要： | Ground-penetrating imaging radar (GPIR) is proposed for large-area inspection of concrete and concrete/asphalt composite bridge decks and roadways. This technique combines ground-penetrating radar (GPR) with unique image reconstruction algorithms developed for identification and characterization of subsurface flaws and structural features. New data acquisition hardware and image reconstruction techniques, under development at LLNL, offer the possibility for reliable and efficient, high-resolution subsurface imaging through the use of improved ultra-wideband transmitters, antennas, and arrays, and enhanced image- and signal-processing software. A field test of a limited-capability prototype system is planned for FY-93, as is completion of a conceptual design for a practical inspection system. A follow-on program for FY-94 would focus on development and demonstration of an advanced bridge inspection system prototype based on the conceptual design completed during FY-93. |
| 总页数： | 10p |
| 报告类型： | 科技报告 |
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