Abstract
With the development of the global economy, the deep leakage of reservoirs is still a serious threat to the foundation construction of key water conservancy projects such as dam foundations and bridges. Ground penetrating radar (GPR) is an effective underground imaging and detection technology. In this paper, the Groundvue series of ground penetrating radars is introduced in Britain using the 948 project fund of the Ministry of Water Resources. It is a radar with the lowest frequency in the world at present, improving detection depths and helping to ensure the reliability of a reservoir dam’s foundation. Through a large number of field tests, simulation experiments, FDTD numerical simulations, and practical engineering applications, this paper summarizes the reservoir leakage analysis method based on the Groundvue radar. The successful application at the Nanmenxia Reservoir shows that this method can effectively detect the location and path of reservoir leakage and provide technical support for the design and construction of a reservoir reinforcement project.
Highlights
Ground penetrating radar (GPR) is a nondestructive technique that uses electromagnetic (EM) waves to image the near subsurface
The Qinghai Province Water Conservancy and Hydropower Survey Design Institute in collaboration with Hohai University applied for the introduction of the globally advanced technology of the water resources project “geological radar technology introduction and application in Nanmenxia Reservoir and consolidate”
Through a lot of field tests, simulation tests, numerical simulation analysis, and practical engineering applications, we built the system of reservoir deep leakage test and analysis based on the Groundvue radar to improve the reservoir leakage detection depth and the reliability of the geological radar method
Summary
Ground penetrating radar (GPR) is a nondestructive technique that uses electromagnetic (EM) waves to image the near subsurface. It has been proven effective and efficient in detecting change in properties. GPR technology has important applications in archaeology [1,2,3,4], architecture [5], railways [6], highways [7], water conservancy [8], electric power [9], mining [10, 11], aviation [12, 13], and other fields, and it is one of the important methods of reservoir leakage detection [14,15,16]. Through a lot of field tests, simulation tests, numerical simulation analysis, and practical engineering applications, we built the system of reservoir deep leakage test and analysis based on the Groundvue radar to improve the reservoir leakage detection depth and the reliability of the geological radar method
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