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.

中文翻译：

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探地雷达对漏油和地下管道的模型试验研究

摘要

市区地下管线经常出现破裂和渗漏问题，污染土壤的分布难以监测和评估。有效识别和评估地下管线和受污染的土壤非常重要。探地雷达用于通过电磁波传播检测地下管线和污染土壤。在我们自己开发的透明模型油箱中，对不同尺寸，材料和埋深的管道和泄漏的油进行了检测测试。利用GRED HD软件对雷达信号进行处理，得到地下管道和污染土壤的单通道波形。时域有限差分法用于分析探地雷达的非平稳信号。讨论了地下管线不同特征的雷达信号以及漏油的变化。提高了地下管线和污染土壤的雷达解释精度。它将为以后的相关研究提供参考。