| 地下金属管道防腐层破损处的直流电法探测 |
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| 引用本文： | 孟祥君,张训华,沙磊.地下金属管道防腐层破损处的直流电法探测[J].海洋地质动态,2013(12):51-57. |
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| 作者姓名： | 孟祥君 张训华 沙磊 |
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| 作者单位： | [1]国土资源部海洋油气资源和环境地质重点实验室,青岛266071 [2]青岛海洋地质研究所,青岛266071 [3]长安大学,西安710064 |
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| 基金项目： | 中国海及邻域地质地球物理及地球化学系列图（GZH200900504） |
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| 摘 要： | 地下金属管道防腐绝缘层的探测是目前管网工程中提出的一个实际问题，探测手段主要包括Person法、电位测试法和密间隔电位测试技术等，但对探测的方法和原理少见报道。详细地介绍了应用直流电法探测地下金属管道防腐绝缘层破损位置的正演模拟和反演过程，通过编写计算程序和综合分析，认为利用直流电法可以探测到地下金属管道防腐层破损的具体位置。
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| 关 键 词： | 电位 地下金属管道 防腐层 破损位置 |
DIRECT CURRENT METHOD FOR DAMAGE DETECTION OF UNDERGROUND METAL PIPELINE WITH ANTICORROSION COAT |
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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 Development,2013(12):51-57. |
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| Authors: | MENG Xiangjun ZHANG Xunhua SHA Lei |
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| Institution: | 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) |
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| Abstract: | Surveying damage site of the anticorrosion coat of the underground metal pipeline is current-ly 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 sur-vey method, but the principle of the DC method is rarely mentioned. This article makes a detailed in-troduction 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. |
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| Keywords: | DC method underground metal pipeline anticorrosion coating damaged site |
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