DIRECT CURRENT METHOD FOR DAMAGE DETECTION OF UNDERGROUND METAL PIPELINE WITH ANTICORROSION COAT

MENG Xiangjun; ZHANG Xunhua; SHA Lei

2013 Vol. 29, No. 12

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MENG Xiangjun, ZHANG Xunhua, SHA Lei. DIRECT CURRENT METHOD FOR DAMAGE DETECTION OF UNDERGROUND METAL PIPELINE WITH ANTICORROSION COAT[J]. Marine Geology Frontiers, 2013, 29(12): 51-57.

Citation:

MENG Xiangjun, ZHANG Xunhua, SHA Lei. DIRECT CURRENT METHOD FOR DAMAGE DETECTION OF UNDERGROUND METAL PIPELINE WITH ANTICORROSION COAT[J]. Marine Geology Frontiers, 2013, 29(12): 51-57.

DIRECT CURRENT METHOD FOR DAMAGE DETECTION OF UNDERGROUND METAL PIPELINE WITH ANTICORROSION COAT

1 Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, China;
2 Qingdao Institute of Marine Geology, Qingdao 266071, China;
3 Chang'an University, Xi'an, 710064, China

Received Date: 05 July 2013

Abstract

Abstract

Surveying damage site of the anticorrosion coat of the underground metal pipeline is currently a realistic problem in pipe network construction. The methods commonly used for detection of the damages include the Person method, potential test method and close interval pipe-to-soil potential survey method, but the principle of the DC method is rarely mentioned. This article makes a detailed introduction to the forward modeling and inversion method for finding out specific damage sites of the anticorrosion coat of underground metal pipelines by the DC method. Calculation and analysis suggest that the DC method is effective in detecting the damage sites on the anticorrosion coat of underground metal pipelines.
- DC method /
- underground metal pipeline /
- anticorrosion coating /
- damaged site