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首页> 外文会议>Nondestructive Evaluation of Bridges and Highways III >Initial testing of advanced ground-penetrating radar technology for the inspection of bridge decks: the HERMES and PERES Bridge Inspectors
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Initial testing of advanced ground-penetrating radar technology for the inspection of bridge decks: the HERMES and PERES Bridge Inspectors

机译：用于检查桥面板的先进的探地雷达技术的初步测试：HERMES和PERES桥梁检查员

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Abstract: Since early 1995 the Federal Highway Administration (FHWA) has been sponsoring the development of ground-penetrating radar technology to produce a tool for the non-destructive evaluation of bridge decks. Under contract with the FHWA, Lawrence Livermore National Laboratory designed and built a system capable of recording data over a 2 meter width during normal traffic flow. The derived system is called `The HERMES Bridge Inspector' (High-speed Electromagnetic Roadway Measurement and Evaluation System) and includes a 64 channel antenna array within a 30 ft trailer. For detailed investigation of portions of a bridge deck, a robotic cart mounted radar has been developed. This cart system is named `The PERES Bridge Inspector' (Precision Electromagnetic Roadway Evaluation System). PERES records data over the chosen area by rastering a single transceiver over the road. Images of the deck interior are reconstructed from the original synthetic aperture data using diffraction tomography. The work presented herein describes the findings of initial experiments conducted to determine the inspection capabilities of these systems. Internal defects such as delaminations, voids and disbonds; and construction details including deck thickness, asphalt overlay thickness and reinforcement layout were the features targeted. The final goal is for these systems, and other non-destructive technologies, to provide information on the condition of the nation's bridges for input to bridge management systems.!7
机译：摘要：自1995年初以来，美国联邦公路管理局（FHWA）一直在赞助探地雷达技术的开发，以提供一种用于桥梁甲板无损评估的工具。与FHWA签订合同，劳伦斯·利弗莫尔国家实验室（Lawrence Livermore National Laboratory）设计并建造了一个系统，该系统能够在正常交通流中记录2米宽的数据。派生的系统称为“ HERMES桥梁检查器”（高速电磁巷道测量和评估系统），并在30英尺的拖车内包括64通道天线阵列。为了详细研究桥面的各个部分，已经开发了安装在机器人上的自动雷达。该推车系统被称为“ PERES桥梁检查器”（精密电磁巷道评估系统）。 PERES通过在道路上栅格化单个收发器来记录所选区域的数据。使用衍射断层扫描从原始的合成孔径数据重建甲板内部的图像。本文介绍的工作描述了为确定这些系统的检查能力而进行的初始实验的结果。内部缺陷，例如分层，空隙和剥离；目标是包括甲板厚度，沥青覆盖层厚度和钢筋布局在内的施工细节。这些系统和其他非破坏性技术的最终目标是提供有关国家桥梁状况的信息，以输入到桥梁管理系统中！7

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