Abstract: The ultrasonic tomography technology was employed in undamage test of large bridge foundation piles in order to measure damage of co ncrete in this paper.The measuring result of an engineering example indicated th at the ultrasonic tomography technology is a good method in the quality evaluati on of bridge foundation piles.

Key words: ultrasonic tomography, undamage test, piles

摘要： 在大型桥梁基桩的超声波检测中,为了准确确定异常部位的尺寸,将CT成像技术引入到超声波检测中,实际工程应用结果表明,这种技术具有分辨率高、缺陷定位准确、检测结果直观、图象清晰等特点

关键词: CT成像技术, 无损检测, 基桩