| 超声成像法在桥梁预应力管道注浆质量检测中的应用 |
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| 引用本文： | 杨忠,梁俊辉,张升彪,刘礼明,张丹.超声成像法在桥梁预应力管道注浆质量检测中的应用[J].中南公路工程,2012(5):168-171. |
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| 作者姓名： | 杨忠 梁俊辉 张升彪 刘礼明 张丹 |
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| 作者单位： | [1]湖南省衡桂高速公路建设开发有限公司,湖南衡阳421001 [2]湖南致力工程检测技术有限公司,湖南长沙410083 |
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| 摘 要： | 超声检测是混凝土无损检测技术中的一个重要方法，当预应力管道中存在注浆不密实的区域时，可以根据混凝土中超声波的传播速度、频率、波形、振幅等参数，进行缺陷的定性识别；然后再利用测量数据进行合成孔径聚焦成像（SAFT），对缺陷的位置及大小进行定量判断。
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| 关 键 词： | 桥梁 预应力管道 注浆缺陷 超声波 合成聚焦成像 |
Imaging Methods for Grouting Faults Investigation of Post-tensioned Concrete Structures |
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| YANG Zhong,LIANG Junhui,ZHANG Shengbiao,LIU Liming,ZHANG Dan.Imaging Methods for Grouting Faults Investigation of Post-tensioned Concrete Structures[J].Central South Highway Engineering,2012(5):168-171. |
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| Authors: | YANG Zhong LIANG Junhui ZHANG Shengbiao LIU Liming ZHANG Dan |
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| Institution: | 1. Hunan Heng-gui Expressway Construction and Development Co. Ltd. , Hengyang, Hunan 421001 China; 2. Hunan zhili testing technology Co. ,Ltd, Changsha, Hunan 410083, China) |
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| Abstract: | Ultrasonic testing is an important method of concrete nondestructive testing technology. When the not dense region is presented in the pre-stressed pipes, the defects could be qualitatively iden- tified based on the parameters such as the propagation of the velocity, frequency, waveform, amplitude and so on. Using the synthetic focus technology to get the images of the measured datas, and then the lo- cation and the size of the defects could be quantitatively determined. |
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| Keywords: | bridge pre-stressed tendon ducts grouting faults Ultrasonic synthetic focus tech-nology |
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