[an error occurred while processing this directive] 世界地质 2020, 39(3) 677-687 DOI:   10.3969/j.issn.1004-5589.2020.03.018  ISSN: 1004-5589 CN: 22-1111/P
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本文关键词相关文章
高铁
大地电磁测深
干扰信号
影响规律
本文作者相关文章
白云天
李桐林
朱威
孟银生
邰书坤
PubMed
Article by Bai Y
Article by Li T
Article by Zhu W
Article by Meng Y
Article by Tai S
现代高速铁路对大地电磁测深的影响规律研究
白云天1, 李桐林1, 朱威2, 孟银生2, 邰书坤1
1. 吉林大学地球探测科学与技术学院, 长春 130026;
2. 中国地质科学院地球物理地球化学勘查研究所, 河北廊坊 065000
摘要： 为研究高速铁路对大地电磁数据的影响规律，笔者以京广高速铁路为例，在距铁路不同距离进行长周期大地电磁观测试验，对高铁干扰信号进行研究。结果表明，高铁主要干扰信号为脉冲噪声、阶跃噪声及周期噪声，对大地电磁100 Hz以下频段的数据均会产生影响，>10 Hz的干扰信号影响范围不超过0.5 km；5~10 Hz的干扰信号影响范围不超过3 km；1~5 Hz的干扰信号影响范围不超过5 km；<1 Hz的干扰信号影响范围超过5 km。
关键词： 高铁   大地电磁测深   干扰信号   影响规律  
Influence rules of modern high-speed railway on magnetotelluric sounding
BAI Yun-tian1, LI Tong-lin1, ZHU Wei2, MENG Yin-sheng2, TAI Shu-kun1
1. College of Geo-exploration Sciences and Technology, Jilin University, Changchun 130026, China;
2. Institute of Geochemical Exploration, CAGS, Langfang 065000, Hebei, China
Abstract: In order to study the influence rules of high-speed railway on magnetotelluric data, taking the Beijing-Guangzhou high-speed railway as an example, long period magnetotelluric observation experiments are carried out at different distances from the railway to study the interference signals of high-speed railway. The results show that the main interference signals of high-speed rail are impulse noise, step noise and periodic noise. Data in the magnetotelluric frequency band below 100 Hz are affected. The influence range of interference signals on magnetotelluric frequency band of more than 10 Hz is within 0.5 km, while the influence range on 5~10 Hz is within 3 km, the influence range on 1~5 Hz is less than 5 km, and the influence range on frequency band less than 1 Hz is more than 5 km.
Keywords: high-speed railway   magnetotelluric sounding   interference signal   influence rules  
收稿日期 2020-05-23 修回日期 2020-05-26 网络版发布日期  
DOI: 10.3969/j.issn.1004-5589.2020.03.018
基金项目:

中国地质调查局项目（DD20190556）资助

通讯作者: 李桐林(1962-),男,教授,主要从事电磁法理论与应用教学和研究。E-mail:litl@jlu.edu.cn
作者简介:
作者Email: litl@jlu.edu.cn
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