【作者】 吴荣新； 肖玉林；

【Author】 WU Rong-xin;XIAO Yu-lin;School of Resources and Environment Engineering,Anhui University of Science and Technology;

【机构】 安徽理工大学地球与环境学院；

【摘要】 分析了工作面坑透透视场强和背景场强的关系,当背景场强值较高时,若正常煤层区背景场强值明显低于透视场强值,而地质异常区背景场强值和透视场强值较接近,可以采用场强增量法坑透技术来探测煤层工作面地质异常区。应用试验表明,该方法能够消除高背景场强值的影响,显著提高正常煤层段与地质异常段的场强值差异。更多还原

【Abstract】 The relationship between perspective and background field strength values of radio wave penetration method for coalface is well analysed.When background field strength values are relatively high,apparently lower than the perspective values in normal area,but are close to the perspective values in anomal areas,field strength increment method can be used to detect the geological anomalies within a coalface.The test demonstrates that the method can eliminate the effect of background field strength,and increase the differences of field strength values between the geological anomalies and normal areas.更多还原