Method for detecting underground pipeline with small aperture and great burial depth
A detection method and underground pipeline technology, applied in geophysical measurement, radio wave measurement system, measurement device, etc., can solve problems such as limited instruments, inability to locate large buried pipelines to be tested, and inability to detect small aperture underground pipelines, etc. Achieve the effects of strong anti-interference, short acquisition cycle and low investment cost
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[0014] Example: such as figure 1 As shown, the method for detecting underground pipelines with small apertures and large buried depths in this embodiment is used to detect the precise position information of underground pipelines 1 that have been buried under the ground 6. Generally speaking, underground pipelines with small apertures and large buried depths refer to underground pipelines with a diameter of less than 3 cm and buried depth. Underground pipeline 1 with a depth of more than 10m. Detecting the precise location information of the underground pipeline 1 is to prevent the excavation construction from touching the underground pipeline 1 and causing damage.
[0015] This embodiment has the following steps in the detection process:
[0016] (1) According to the diameter of the underground pipeline 1 to be tested, the size of the small-strength magnetic source 7 is selected to meet the requirement that the small-strength magnetic source 7 can move freely in the hole of the u...
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