多频无线电波透视探测技术在煤层冲刷带探测中的应用
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摘要
煤层冲刷带通常会引起煤层形态和厚度的变化,给煤矿开采带来不利影响。利用煤层冲刷带与煤层之间存在电性差异,采用多频无线电波透视探测技术可以有效圈定煤层冲刷带。结合不同频率及探测点距条件下电磁波透视探测成果,分析了不同条件下电磁波透视探测的适用性。实际探测成果表明,电磁波透视探测技术是一种有效的回采工作面地质异常体探测手段,在保证透射电磁波信号强度的前提下,探测频率与较小的探测点距能有效提高分辨率。
The coal seam scouring zone usually causes changes in the morphology and thickness of the coal seam, which adversely affects the comprehensive mechanized mining of the coal mine. There is an electrical difference between the scouring zone and the coal seam. Using multi-frequency radio wave perspective detection technology can effectively delineate the coal scouring zone.Combining the results of perspective detection of electromagnetic waves under different frequencies and detection distances, the applicability of perspective detection of electromagnetic waves under different conditions was analyzed. The actual detection results show that the electromagnetic wave perspective detection technology is an effective geological anomaly detection method in the mining face. Under the premise of ensuring the transmitted electromagnetic signal intensity, the detection frequency and the smaller detection point distance can effectively improve the resolution.
The coal seam scouring zone usually causes changes in the morphology and thickness of the coal seam, which adversely affects the comprehensive mechanized mining of the coal mine. There is an electrical difference between the scouring zone and the coal seam. Using multi-frequency radio wave perspective detection technology can effectively delineate the coal scouring zone.Combining the results of perspective detection of electromagnetic waves under different frequencies and detection distances, the applicability of perspective detection of electromagnetic waves under different conditions was analyzed. The actual detection results show that the electromagnetic wave perspective detection technology is an effective geological anomaly detection method in the mining face. Under the premise of ensuring the transmitted electromagnetic signal intensity, the detection frequency and the smaller detection point distance can effectively improve the resolution.
引文
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[7]刘鑫明,刘树才,姜志海,等.基于改进振幅衰减常数的无线电波透视层析成像研究[J].地球物理学进展,2013,28(2):980-987.
[8]汤友谊,陈江峰,彭立世.无线电波坑道透视构造煤的研究[J].煤炭学报,2002,27(3):254-258.
[9]左汪会.煤层工作面小构造无线电波透视探测技术研究[D].淮南:安徽理工大学,2017.
[10]潘利洵,武俊文,卢海.无线电波透视在工作面探测中的应用[J].工程地球物理学报,2010,7(6):684.
[11]梁庆华,吴燕清,宋劲.无线电波坑道透视探测的定性分析及其应用[J].重庆大学学报,2010,33(11):113-118.
[2]李普涛,张起钻,汪恕生.煤层冲刷带预测方法评述[J].中国煤炭地质,2007,19(2):17-19.
[3]郭然,董秀桃,张旭刚.综采面地质小构造无线电波坑道透视技术[J].煤炭科学技术,2009(11):99-101.
[4]吴燕清.地下电磁波探测及应用研究[D].长沙:中南大学,2002.
[5]董守华,王琦.层析成像在巷道无线电波透视法中的应用[J].中国矿业大学学报,2003,32(5):579-582.
[6]刘鑫明.煤岩介质中中高频电磁波传播规律研究[D].徐州:中国矿业大学,2013.
[7]刘鑫明,刘树才,姜志海,等.基于改进振幅衰减常数的无线电波透视层析成像研究[J].地球物理学进展,2013,28(2):980-987.
[8]汤友谊,陈江峰,彭立世.无线电波坑道透视构造煤的研究[J].煤炭学报,2002,27(3):254-258.
[9]左汪会.煤层工作面小构造无线电波透视探测技术研究[D].淮南:安徽理工大学,2017.
[10]潘利洵,武俊文,卢海.无线电波透视在工作面探测中的应用[J].工程地球物理学报,2010,7(6):684.
[11]梁庆华,吴燕清,宋劲.无线电波坑道透视探测的定性分析及其应用[J].重庆大学学报,2010,33(11):113-118.