Research on the integrated electric exploration system for coal mines and its application
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摘要: 为解决现有煤矿电法探测技术存在的电测深、电剖面、电透视需分多次施工且采集数据量少等方面的不足, 借鉴并行电法数据采集思路, 应用“矩形波型”电极布置方式结合“多装置数据提取”技术, 设计一种电法集成勘探系统。实验结果表明：应用该系统可一次布线、一轮供电完成电测深、电剖面、电透视等多种电法施工方式的原始数据采集工作, 提取出多种电法工作方法和装置类型的测量数据, 综合处理得到多种地电场的三维勘探结果, 同时相同施工条件下多种成果相互对比, 提高物探成果解析的精细度和可靠性。研究成果对现有的传统直流电法、高密度电法、并行电法、电透视法等电法技术取长补短、融合创新、集成应用, 实现工作面煤岩层富水性的高效、精细、立体探测。Abstract: In order to overcome the shortcomings of the existing electrical prospecting technology in coal mines, such as multiple construction of electrical sounding, electrical profile and electrical penetration and a scarcity of data collected, an integrated electrical prospecting system is successfully designed, absorbing the idea of parallel electrical data acquisition, and applying the "rectangular wave" electrode layout mode combined with the "multi device data extraction" technology. The experimental results show that the system can complete the original data acquisition of electrical sounding, electrical profile, electrical perspective and other electrical construction methods with one-time wiring and one-round power supply, and extract the measurement data of various electrical methods and device types. After a comprehensive process, the 3D exploration results of various geoelectric fields are obtained. At the same time, results under the same construction conditions are compared with each other to improve the precision and reliability of the analysis of geophysical exploration results. The existing electrical methods such as traditional direct current method, high-density method, parallel method and electric perspective method should be integrated to complement each other in an innovative manner, so as to realize efficient, fine and three-dimensional detection of water bearing capacity of coal and rock strata in the working face.
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图 1 电法集成勘探系统单边式工作方式
Fig. 1 Schematic diagram of unilateral working mode of the integrated electrical exploration system
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图 2 电法集成勘探系统包围式工作方式
Fig. 2 Schematic diagram of surrounding working mode of the integrated electrical exploration system
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图 3 电测深和电剖面勘探装置数据提取
Fig. 3 Schematic diagram of data extraction of electrical sounding and electrical profile exploration devices
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图 4 电透视勘探装置数据提取
Fig. 4 Schematic diagram of data extraction of electrical sounding and electrical profile exploration device
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图 5 15091工作面电法集成勘探施工布置
Fig. 5 Construction layout of electrical method integrated exploration in working face 15091
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图 6 15091工作面底板视电阻率横向切片
Fig. 6 Slice diagram of apparent resistivity of floor in working face 15091
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