摘要
为了提高隧道以及煤矿巷道超前探测准确度,在总结前人研究成果的基础上,结合超前水平钻孔法和直流电阻率法,改变传统探测电极后置的方法,在工作面向前钻孔并在孔内布置探测电极,建立直流电法超前探测模型进行正演研究,利用Matlab处理数据,对比分析了在巷道后方布置探测电极和工作面钻孔内布置探测电极得出的视电阻率曲线,以及巷道内存在干扰体的影响下的视电阻率对比曲线图。结果表明,在工作面钻孔内布置探测电极进行孔内直流电法超前探测受巷道内干扰体影响较小,更为灵敏准确。
In order to improve the tunnel and the coal mine roadway advanced detection accuracy, on the basis of summarizing the predecessors＇ research results, combined with advanced horizontal drilling method and DC resistivity method, changing the traditional detecting rear electrode method, constraints in hole and the hole layout forward detection electrodes.direct current method, advanced detection model is established for the forward research.Using Matlab processing data, comparison and analysis on rear arrangement between electrodes and constraints of roadway layout in the borehole drilled in the detection electrode of apparent resistivity curve, as well as in the roadway apparent resistivity graph comparing body under the influence of interference.The results show that the constraints inside decorate detection electrode hole drilling method of direct eurrent（DC） advanced detection is more sensitive and accurate.
出处
《煤炭技术》
CAS
北大核心
2017年第3期146-149,共4页
Coal Technology
关键词
钻孔
直流电法
超前探测
视电阻率
hole
direct current method
advanced detection
apparent resistivity
