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| A TENTATIVE DISCUSSION ON THE APPLICATION OF REFLECTION METHOD TO THE DETECTION OF CONCRETE THICKNESS |
| WU Qing-zeng1, HE Hao2, CHEN Wei-hong3, LI Shu-jun4 |
1. Institute of Technology and Method, Ministry of Land and Resources, Baoding 071051, China;
2. China Geological Survey, Beijing 100035, China;
3. Beijing Institute of Municipal Construction, Beijing 100037, China;
4. Liaoning Engineering Exploration Institute, Jinzhou 121001, China |
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Abstract Each of such bodies as tunnel lining, road way and road surface floorslab has only one inspection face, and the shock echo method has become a new technique for detecting thickness and defects. The general and unique characteristics of the shock echo method and the foundation pile reflection method reveal the mechanism of the reflection technique as well as the different requirements of frequency domain and time domain for impulse. With Huygens-Fresnel belt, the authors have analyzed the horizontal resolution ratio, and pointed out the technological crux of such a method.
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Received: 07 August 2002
Published: 24 June 2003
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| [1] |
HU Bo-Wen, CHEN Li, YAO Hong-Chao, ZHANG Fa-Wang, ZHANG Jin, ZHAO Miao. The application of integrated geophysical exploration to the hydrogeology discrimination of the large fracture tunnel construction period[J]. Geophysical and Geochemical Exploration, 2015, 39(4): 867-871. |
| [2] |
FU Mao-ru, HAN Dong-ya, ZHANG Ping-song, WU Rong-xin. A COMPARATIVE TESTING STUDY OF THE METHODS FOR DETECTING THE FLOOR-WATER HAZARD IN THE WORKING FACE OF A MINE[J]. Geophysical and Geochemical Exploration, 2013, 37(6): 1067-1070. |
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