大地电磁法在煤矿地质检测中的应用研究  

Research on the application of magnetotelluric method in coal mine geological detection

作　　者：邱宏光 QIU Hongguang(Shanxi Tongzhou Coal Chemical Group Co.,Ltd.,Changzhi 046500,China)

机构地区：[1]山西通洲煤化集团有限责任公司,山西长治046500

出　　处：《中国高新科技》2023年第17期78-80,共3页

摘　　要：为解决现有测试方法检测结果误差较大的问题,提出大地电磁法在煤矿地质检测中的应用研究。首先充分考虑了客观环境的电磁干扰分布规律,选择AMTC-30磁传感器为采集装置,按照“十”字形方式,在电磁干扰较小的区域和时间段进行数据采集,然后结合滤波频率对单一测点数据采集时间进行适应性调节,最后以麦克斯韦方程组为基础,根据不同地质构成在介电常数、磁导率和介质电导率方面表现出的差异,结合谐变因子实现对地质结构分布的检测。实验测试表明:设计方法对不同地质构成分布的检测结果与实际结果误差较小,应用效果较佳。To solve the problem of significant errors in the detection results of existing testing methods,the application research of magnetotelluric method in coal mine geological detection is proposed.After fully considering the distribution law of electromagnetic interference in the objective environment,AMTC-30 magnetic sensor was selected as the collection device.Data collection was carried out in areas and time periods with low electromagnetic interference in a“cross”pattern.Then,the filtering frequency was combined to adaptively adjust the data collection time of a single measurement point.Finally,on the basis of Maxwell equations,according to the differences in dielectric constant,permeability and dielectric conductivity of different geological compositions,the distribution of geological structures is detected with harmonic factors.Experimental testing shows that the design method has a small error between the detection results of different geological composition distributions and the actual results,and the application effect is better.

关 键 词：大地电磁法 煤矿地质检测 电磁干扰 磁传感器 滤波频率 麦克斯韦方程组 谐变因子 

分 类 号：F272[经济管理—企业管理]