![]() ![]() The Wenner array sounding data are collected by high density resistivity instrument,and the array data are converted into symmetrical quadrupole sounding data format.The three-dimensional resistivity inversion data format is established by using the survey grid, and the three-dimensional resistivity inversion is carried out. When locating boreholes in goaf of gold mine,the location and occurrence of goaf are calculated mos-tly by inversion of two-dimensional high density resistivity profile.Because the occurrence of goaf of gold mine varies complex,two dimensional inversion only reflects the distribution pattern of goaf along the longitudinal section,and the boundary error of inversion target is caused by fewer measuring points in the affected area of goaf.In order to achieve accurate exploration,prec-ise inversion of the boundaries,directions and ten-dencies of mined-out areas,increasedrilling accuracy and reduce explora-tion costs,several equidistant high-density resistivity profiles (50 m and 20 m spacing between sections) were laid out in the experiment of Daliuhang Gold Mine in Penglai. ![]()
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