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利用管线探测仪进行管线探测时,常常需要根据管线的地球物理特性选择合适的探测方法。不合适的探测方法,不仅直接影响探测精度,甚至会造成错探、漏探的严重后果。科学评估各类因素对探测精度的影响,并采取最佳探测方法是保障管线成果安全可靠的重要手段。本文首先对管线探测仪进行了一致性检验,在此基础上从仪器频率、激发方式、管线类别三个方面分别对探测精度进行比对分析,总结了在不同环境下选择最佳探测方法的一般规律。最后结合管线探测实际案例检验了该规律的适用性及正确性。
When using pipeline detectors for pipeline exploration, it is often necessary to select a suitable detection method based on the geophysical properties of the pipeline. Inappropriate detection methods, not only directly affect the detection accuracy, and even lead to wrong exploration, missed the serious consequences of exploration. Scientific assessment of various factors on the detection accuracy, and to take the best detection method is to ensure the safety and reliability of the pipeline an important means. In this paper, we first test the consistency of the pipeline detector. Based on this, we compare the detection accuracy from the instrument frequency, the excitation method and the pipeline type respectively, and summarize the general methods of choosing the best detection method in different environments law. Finally, combined with the actual case of pipeline detection test the applicability and correctness of the law.