Design and application of a probe for deep buried metal pipeline detection based on electromagnetic method and cone penetration method
This paper has designed an underground metal pipeline detection probe based on the electromagnetic induction method.The advantage of this probe is it can approach and detect the target pipeline by means of static pressure penetration.During the penetration process,the elec-tromagnetic field strength and the cone tip resistance can be read in real time to obtain the loca-tion information of underground pipelines safely and prevent any damage to underground facili-ties.In the probe design,the magnetic core of an induction coil was used to transmit the cone tip resistance,the nonmetallic shell was also used to prevent signal shielding,and a filter amplifica-tion circuit was used to reduce external interference.Through model and field tests,the detection effect of the proposed probe was verified.The results showed that the detection error of the pipe-line's buried depth can be controlled within 5 cm.This study has a positive significance for high-precision detection and underground pipeline protection of deep-buried pipelines.
万方数据
维普
