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Title
Application of ground penetrating radar in the detection of hidden fault structure in Huayang No.1 Mine
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作者
乔旭齐振洪杨智华王卫光杨峰
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Author
Qiao Xu;Qi Zhenhong;Yang Zhihua;Wang Weiguang;Yang Feng
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单位
中国矿业大学(北京)山西华阳集团新能股份有限公司山西华阳集团新能股份有限公司一矿
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Organization
China University of Mining and Technology-Beijing, Beijing 100083, China
Shanxi Huayang Group New Energy Co., Ltd., Yangquan 045000, China
Shanxi Huayang Group New Energy Co., Ltd. No.1 Mine, Yangquan 045000, China
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摘要
断层构造破坏煤系地层、降低煤炭资源储量,采煤工作面通过断层,增加采煤成本,带来突水、瓦斯积聚风险,有必要在采煤工作面开展隐伏断层构造探测。目前,采煤工作面的主要物探方法有地震波法和电磁法两类,作为精细地质勘探方法,探地雷达技术可以在隐伏断层构造探测中发挥重要作用。本文针对华阳一矿地质特点分析了断层类型及其成因,采用有限时域差分法模拟了不同走向断层构造的探地雷达探测数据,分析了不同构造的数据特征,提出了基于电磁波反射路径的断层走向推断方法。通过100 MHz探地雷达对矿区内隐伏断层构造进行了探测,探测结果表明:通过结合目标反射波振幅、层位变化等信息,可以估计断层构造在回采区内的走向和范围,结合已揭露的倾角、落差等信息,为预先调整回采工作面提供依据。
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Abstract
Fault structure destroys coal measures strata and reduces the reserves of coal resources. Coal mining face passes through faults, which increases the cost of coal mining and brings the risk of water outburst and gas accumulation. It is necessary to carry out concealed fault structure detection in coal mining face. At present, the main geophysical methods of coal mining face are seismic wave method and electromagnetic method. As a fine geological detection method, ground penetrating radar technology can play an important role in the detection of hidden fault structures. In this paper, the types and causes of faults were analyzed according to the geological characteristics of Huayang No.1 Mine. The finite time domain difference method was used to simulate the ground penetrating radar detection data of different strike fault structures. The data characteristics of different structures were analyzed, and a fault strike inference method based on electromagnetic wave reflection path was proposed. The concealed fault structure in the mining area was detected by 100 MHz ground penetrating radar. The detection results showed that the strike and range of the fault structure in the mining area could be estimated by combining the amplitude of the target reflected wave and the change of the horizon. Combined with the revealed dip angle, drop and other information, it provided a basis for pre-adjusting the mining face.
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关键词
地质探测断层构造探地雷达数据处理
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KeyWords
geological detection;fault structure; ground penetrating radar;data processing
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DOI
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引用格式
乔 旭1,齐振洪2,杨智华2,王卫光3,杨 峰1. 探地雷达在华阳一矿隐伏断层构造探测中的应用[J]. 煤炭与化工, 2024, 47(4): 62-67.
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Citation
Qiao Xu1, Qi Zhenhong2, Yang Zhihua2, Wang Weiguang3, Yang Feng1. Application of ground penetrating radar in the detection of hidden fault structure in Huayang No.1 Mine. CCI, 2024, 47(4): 62-67.