Model Test Study on Oil Leakage and Underground Pipelines Using Ground Penetrating Radar
Lei Gao, Hantao Song, Hanlong Liu, Chuan Han, Yumin Chen
Abstract
Abstract The underground pipelines have frequent ruptures and leakage problems in the urban area, the distribution of contaminated soil is difficult to monitor and evaluate. It is important that the effective identification and assessment of underground pipelines and contaminated soil. The ground penetrating radar was applied to the detection of underground pipelines and contaminated soil using the electromagnetic wave propagation. The detection tests were carried out on pipes and leaking oil with different sizes, materials and buried depths in a transparent model tank developed by ourselves. The radar signal is processed by using GRED HD software, the single-channel waveform of underground pipelines and contaminated soil are obtained. The time-domain finite difference method is used to analyze the non-stationary signals of ground penetrating radar. The radar signals of underground pipelines with different characteristics and the variation of leakage oil are discussed. The radar interpretation accuracy of underground pipelines and contaminated soil is improved. It will provide the reference for related studies in future.