摘要
以单回交流500 kV超高压输电线路为例,介绍线路附近电磁干扰产生的机制及分布特征。通过激电法、磁法二个勘查工作实例,揭示高压输电线路对其附近观测数据的干扰影响大小和范围,初步分析此类干扰对观测的影响机制,实际的勘查工作中该类输电线路对激电、磁测的影响范围均超过了200 m。希望野外工作中加强对该类干扰影响的重视。
Taking 500kV UHV single circuit AC transmission line as an example,this paper introduces the generation mechanism and distribution characteristics of electromagnetic interference near the line.Through two exploration examples of induced polarization method and magnetic method,this paper reveals the size and scope of interference of high-voltage transmission line on observation data nearby,and preliminarily analyzes the influence mechanism of such interference on observation.In actual exploration work,the influence range of such transmission line on IP and magnetic survey is more than 200 meters.Through this paper,the authors hope to pay more attention to this kind of interference in field work.
作者
张勇
费雯丽
Zhang Yong;Fei Wenli(Hubei Geological Survey,Wuhan,Hubei 430034)
出处
《资源环境与工程》
2020年第3期453-457,共5页
Resources Environment & Engineering
关键词
高压输电线
电磁干扰
物探勘查
high voltage transmission line
electromagnetic interference
geophysical exploration
