矿业科学学报2024，Vol.9Issue(4)：549-560,12.
超宽工作面三维电法数据特征研究及应用
Characteristics of three-dimensional electrical data of ultra-wide working face and its application
摘要
Abstract
The construction of ultra-wide working face is helpful to promote the safe and efficient mining of coal resources.However,due to the limitation of roadway space and construction conditions,the de-tection depth of conventional mine geophysics is limited,and the geological information inside the ultra-wide working face and within a certain range of roof and floor cannot be accurately obtained.In order to improve the detection accuracy of the water rich area on the bottom plate of the ultrawide working face and provide a basis for the processing and interpretation of measured data,based on the summary and a-nalysis of current mine geophysical detection technology,the three-dimensional(3D)DC resistivity method that can be applied to the detection of the ultrawide working face,combined with the occurrence characteristics of limestone water on the bottom plate of the working face 21106 in a coal mine in Yongcheng,Henan,was systematically studied using a combination of theoretical analysis,numerical simulation,and measured data to study the data characteristics and resolution ability of 3D observation and 2D observation modes.The research results show that:Compared with the traditional two-dimen-sional observation mode of the same side transmitter-receiver,the three-dimensional observation mode of the opposite side transmitter-receiver is more sensitive to the low resistance body on the floor of the min-ing face.The data obtained by the three-dimensional observation mode of the opposite side transmitter-receiver are calculated by the conventional apparent resistivity formula,the obtained apparent resistivity is sometimes opposite to the actual electrical property,so it is necessary to use the three-dimensional in-version method for data processing.Finally,the 3D model data observed during the 21106 work in a coal mine in Yongcheng,Henan Province was subjected to 3D inversion processing,and the reliability of the 3D inversion results was verified through underground drilling data.The research results provide a theoretical basis for the two-dimensional observation and three-dimensional observation data interpreta-tion of the pole-pole device conditions.关键词
超宽工作面/矿井三维电法/水害防治/三维反演Key words
ultra-wide working face/three-dimensional direct current resistivity method for mines/water damage prevention/three-dimensional inversion分类
矿业与冶金引用本文复制引用
张新过,李毛飞,孙若淞,姜志海,聂东方,王诗龄..超宽工作面三维电法数据特征研究及应用[J].矿业科学学报,2024,9(4):549-560,12.基金项目
国家自然科学基金青年项目(42204139) （42204139）
国家自然科学基金重点项目(42230811) （42230811）
