基于二极电阻率法的并行电法勘探技术

利用点电场的分布规律和高密度电阻率法的基本思想,从二极直流电法勘探和地震勘探的思路出发,提出了利用1个电极供电,其余电极同步测量的网络电法勘探系统,通过室内数据处理实现高密度电法的二极、温纳三极A、三极B的同步快速测量。该方法极大地缩短了现场数据采集时间,提高了电法勘探的效率。目前,该方法技术已广泛应用于地基勘察、矿井回采工作面导水裂隙带高度探测及矿井出水水源探测等工程实践中。

THE PARALLEL ELECTRICAL PROSPECTING TECHNOLOGY BASED ON THE POLE-POLE RESISTIVITY METHOD

According to the distribution regularity of the electric fields of surface single spot current source and the basic thought of the high density resistivity prospecting method ,and from the principles of the pole-pole electrical prospecting and the seismic prospecting, this paper puts forward a network electrical prospecting system, which uses one current electrode to perform power supply, with the other electrodes conducting synchronous prospecting. The synchronous rapid measurements such as Wenner pole-dipole, Wenner pole-dipole and pole-pole array of the high density resistivity method can be realized by indoor data-processing. This technology can enormously cut down the working hours of data collection in open field and greatly improve the efficiency of the electrical prospecting. It has been applied in many engineering projects, such as foundation prospecting, the measuring of the height of the water flowing fractured zone in working faces, the detection of the water source of coal well water bursting.