| 混凝土桥梁金属波纹管注浆质量声波检测法探讨 |
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| 引用本文： | 喻波,欧宁,鲁光银,密士文.混凝土桥梁金属波纹管注浆质量声波检测法探讨[J].中南公路工程,2012(2):1-3,7. |
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| 作者姓名： | 喻波 欧宁 鲁光银 密士文 |
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| 作者单位： | [1]湖南省吉茶高速公路建设开发有限公司,湖南吉首416000 [2]中南大学地球科学与信息物理学院,湖南长沙410083 |
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| 基金项目： | 国家自然科学基金项目资助（41174061）; 中南大学自由探索计划资助（2011QNZT011） |
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| 摘 要： | 混凝土桥梁波纹管的灌浆质量直接关系到桥梁的使用寿命和安全,但是目前还没有能够准确检测波纹管注浆质量的方法。在混凝土结构物的无损检测中,应用最广泛的就是超声波检测法及冲击回波法,但本质都属于声波类方法的范畴。通过理论分析和声波的数值模拟,证明根据初至时间或者主频特征评价金属预应力管道注浆质量是不可行的。
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| 关 键 词： | 金属预应力孔道 注浆质量 声波 冲击回波 |
The Study of Detecting the Grouting Quality of Pre-stressed Metallic Tendon Ducts Through Acoustic |
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| YU Bo,OU Ning,LU Guangyin,MI Shiwen.The Study of Detecting the Grouting Quality of Pre-stressed Metallic Tendon Ducts Through Acoustic[J].Central South Highway Engineering,2012(2):1-3,7. |
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| Authors: | YU Bo OU Ning LU Guangyin MI Shiwen |
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| Institution: | 1.Hunan Province,Ji-cha Highway Construction and Development Co.,Ltd.Jishou,Hunan 416000,China;2.School of Geosics and Info-Physics,Central South University,Changsha,Hunan 410083,China) |
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| Abstract: | The grouting quality of pre-stressed tendon ducts influences the bridge security and durability.However,the present methods can＇t accurately detect the grouting quality.In the nondestructive testing of concrete structures,the ultrasonic detection and impact-echo method are the most common method,and they are essentially within the acoustic method.Based on the theory analysis and acoustic numerical simulation,this paper proves that the evaluation of the quality of metallic prestressed grouting according to the first time or frequency characteristics is not feasible. |
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| Keywords: | pre-stressed metallic tendon ducts grouting quality acoustic impact-echo |
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