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矿井瞬变电磁低阻干扰体测试研究

Study on the Low Resistance Interference Test of Coal Mine Transient Electromagnetic

  • 摘要: 井下巷道中存在的低阻干扰体所产生的噪声是影响矿井瞬变电磁探测预报准确性的主要因素。通过实例测试,以分析巷道不同低阻干扰体所引起的干扰程度,进而提高矿井瞬变电磁探测的准确性。测试结果表明,在井下进行瞬变电磁探测,遇到低阻干扰体时,可以通过调整采集方式来避开金属干扰体及积水所引起的干扰,不仅能有效完成探测任务,还可以提高探测工作的效率和探测结果的准确性。

     

    Abstract: The noise generated by the low resistance interference in the underworkings is the main factor influencing the forecast accuracy of the mine transient electromagnetic detection.In this paper,an instance test was used to analyze the degree of interference caused by different low resistance interferences in the roadway,and then improved the accuracy of the mine transient electromagnetic detection.Results showed that when encountered with low resistance interference during the transient electromagnetic detection in the mine,we can avoid interference caused by metal interference and water accumulation by adjusting the collecting ways.It can not only effectively complete the detection task,but also improve the efficiency of the detection work and the accuracy of the detection results.

     

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