深圳地铁发展迅猛，泄漏到大地中的杂散电流可导致埋地管道腐蚀加速。对深圳地铁杂散电流干扰下的输水管道进行检测，确定管道的自腐蚀电位，探讨试片材质和表面状态对检测结果的影响，同时研究了管道受杂散电流干扰的规律。结果表明: 杂散电流干扰程度与地铁和管道的相对位置有一定的关系,随着管道与地铁间距离减小，管道受到杂散电流干扰越来越严重；并且在相同距离下，交叉段受到干扰程度要大于平行段。同时不同材质的管道抗干扰能力也不相同。

With the rapid development of Shenzhen metro, the leaked stray current into ground leads to corrosion of buried pipelines accelerated. A comprehensive inspection of water pipelines in different areas of Shenzhen under the interference of stray current was conducted, and the corrosion potential was determimed. The effects of materials and surface conditions of samples on the detection results were discussed. And a certain of stray current interference rules on pipelines were obtained. The results show that there is some relationship between the relative position and the degree of metro stray current interference on pipelines. With the decrease of the distance between pipelines and metro, the stray current interference becomes more serious; and in the same distance, the interference degree of the pipelines crossed with metro is higher than that of parallel with metro. At the same time, the ability of anti-interference of different materials is in difference.