论仪器一致性检验在管线探测方法选取中的应用

Discussion on Coherence Checks of Apparatuses in Choosing Underground Pipeline Detecting Methods

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 we use pipeline instruments detecting pipelines, it is often required to choose the appropriate detec- ting methods according to geophysical characteristics. Inappropriate detecting methods, not only affect the accuracy of de- tection, even would cause the wrong probe or missing probe. Scientific assessment of the impact of various types of factors on the detection accuracy and take the best detection methods is an important means to ensure pipeline outcomes safe and reliable. Firstly, testing the consistency of pipeline instruments, then analyzing detection accuracy from instrument frequency, excitation mode and pipeline categories. Summarized general rules to select the best detecting methods in differ- ent environments. Finally, examining the applicability and correctness of rules by an actual pipeline case.