青海金银滩、门源、大武地电场干扰因素分析

ANALYSIS OF ELECTRIC FIELD INTERFERENCE FACTORS OF JINYINTAN,MENYUAN AND DAWU IN QINGHAI PROVINCE

利用2019~2021年的观测资料,通过查阅观测日志、干扰源调研等方法,对金银滩、门源、大武地电场的干扰因素进行了分析。结果表明:金银滩地电场以地电阻率供电干扰及牧民抽水泵漏电干扰为主;门源地电场以太阳能板漏电干扰及降雨干扰为主;大武地电场的主要干扰因素为漏电干扰。针对以上干扰因素,分析认为金银滩地电场地电阻率供电干扰可以通过调整地电仪供电电流大小来抑制,牧民抽水泵漏电干扰应该改造线路;门源地电场的太阳能板漏电应该做绝缘处理,防降雨干扰应该从埋设电极出发;大武地电场的漏电干扰应该与当地牧民沟通,改造线路解决。

Based on the observation data from 2019 to 2021,this paper analyzed the interference factors of Jinyintan,Menyuan and Dawu geoelectric fields by consulting observation logs and investigating interference sources.The results show that the electric field of the gold and silver beaches is mainly interfered by the ground resistivity power supply and the leakage of the herdsmen pumping pump.Solar panel leakage interference and rainfall interference are the main factors in Menyuan geoelectric field.The main interference factor of the geoelectric field is leakage interference.In view of the above interference factors,the analysis suggests that the resistivity power supply interference of Jinyintan geoelectric site can be suppressed by adjusting the power supply current of geoelectric meter,and the leakage power interference of herdman pumping pump should be modified.The solar panel leakage of Menyuan geoelectric field should be insulated,and the protection against rain interference should start from the buried electrode.The leakage interference of Dawu geoelectric field should be communicated with the local herdsmen,and the reconstruction line should be solved.