Traditional Culture Encyclopedia - Traditional culture - Underground pipeline detection method
Underground pipeline detection method
The detection methods of underground pipelines are generally divided into two types: ① the method of combining well drilling investigation with sample hole excavation (or simple sounding). Used for detecting the quality of complex parts of pipelines or inspection instruments. ② The method of combining well drilling investigation with instrument detection.
Among various geophysical methods, frequency domain electromagnetic method, magnetic survey, earthquake, ground penetrating radar, direct current method and infrared radiation method are in turn according to their application effect and scope. Among them, electromagnetic method has the advantages of high detection accuracy, strong anti-interference ability, wide application range, flexible working mode, low cost and high efficiency, and is the most commonly used method at present (table 12. 1).
Table 12. 1 Geophysical methods for detecting underground pipelines
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