The exploration of two-gateways parallel 3-D electrical technology for water-rich area within coal face floor
WU Rong-xin
LIU Sheng-dong
ZHANG Ping-seng
Abstract：The two-gateways three-dimention resistivity technology made full use of the data collected by the parallel elactrical instrument from the several survey lines of both gateways,with the electrodes set in the tunnel floor,then,the resistivity variations within a coal face floor were acquired. Based on the electrical property differences between water-richarea and normal strata, the capable resistivity images of water-rich area were analysed in detail. In addition to the knowndata such as those of geology,water inflow of boreholes, grouting, and so on, the property and distribution ranges of water-rich area could be well found out. The exploration case for water-rich area from the coal face in Hengyuan Coal and Electricity Corporation,yield the apparent zones of relatively lower resistivity area, corresponding to the water-rich area,which was testified by the latter drill exposure.
Keywords：parallel electrical methodcoal facecoal floorwater-rich arearesistivity
Publication Date：2010-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 454-457 )