为了不影响埋地管道的正常运行和节省开挖成本,本文提出了一种对埋地管道进行在役检测并将结果成像的技术,是基于二维成像技术和解析延拓提出的一种向下延拓的方法,能够根据某一面上已知的磁异常值,计算出该平面下一定范围内任意一点的相应磁异常值,并在磁法检测二维成像的基础上实现场源成像,实现了磁法检测结果的可视化,为检测人员进行缺陷判断提供可靠依据及直观的分析手段。 In order not to affect the normal operation of buried pipelines and save the cost of excavation, this paper presents a technique for in-service detection of buried pipelines and imaging of the results. It is based on two-dimensional imaging technology and analytical extension proposed a Under the extension of the method, according to a known surface magnetic anomaly value, calculate the corresponding magnetic anomaly at any point within a certain range under the plane, and magnetic field method based on two-dimensional imaging to achieve field imaging, Realize the visualization of magnetic detection results, to provide a reliable basis and intuitive analysis means for the detection of defects.