摘要
成都地磁台距成灌高铁运行线路垂直距离约1.5 km,使用数字化磁通门磁力仪GM4,在轨道沿线不同距离处进行野外测试。测试结果表明,轨道交通的运行对周围地磁观测环境产生干扰,干扰距离约6 km,干扰主要来自轨道泄露电流及输电线路产生的磁场。
From Chengdu Geomagnetic Station into high-speed rail lines vertical distance of about 1.5 km,the use of digital flux-gate magnetometer GM4. The results of indicate that the moving of trains on the city railcar disturbs the environment of geomagnetic observation and the influence basically disappears by 10 km from the railcar line. The disturbance results from the leakage of electric current by railway and transmit electricity line.
出处
《地震地磁观测与研究》
2017年第5期81-85,共5页
Seismological and Geomagnetic Observation and Research
基金
中国地震局监测
预报
科研三结合项目(项目编号:152307)
关键词
轨道交通
地磁观测
地磁干扰测试
差值分析
漏电电流
city railcar,geomagnetic observation,geomagnetic disturbance test,differential analysis,leakage of electric current
