面向煤层冲刷带探测的钻孔雷达数值模拟研究  

Study on numerical simulation of borehole radar for detection of coal seam scouring zone

作　　者：赵嘉良 李蔚林 Zhao Jialiang;Li Weilin(School of Mine Safety,North China Institute of Science and Technology,Beijing 065201,China;Shanxi Lu'an Group Luning Coal Industry Co.,Ltd.,Xinzhou 034000,China)

机构地区：[1]华北科技学院矿山安全学院,北京东燕郊065201 [2]山西潞安集团潞宁煤业有限责任公司,山西忻州034000

出　　处：《煤炭与化工》2024年第12期73-78,共6页Coal and Chemical Industry

摘　　要：煤层冲刷带构造的存在给煤炭企业的经济效益及安全生产带来不利影响。潞宁煤业公司22123工作面位于侏罗系大同组上部的2号煤,根据工作面的采掘及探测情况,发现其工作面中存在大量不规则冲刷带。为对其实施精准探测,采用数学建模软件MATLAB建立了煤层冲刷带地质模型,结合探地雷达数值模拟软件gprMax开展了正演模拟研究,得出不同雷达频率及钻孔间距的探测结果,分析总结得出钻孔雷达在工作面探测的最优频率及钻孔雷达探测时的最优探测间距。The existence of coal seam scouring zone structure would bring adverse effects to the economic benefits and safety production of coal enterprises.The No.22123 Face of Luning Coal Industry Company was located in No.2 coal in the upper part of Jurassic Datong Formation.According to the mining and detection of the working face,it was found that there were a large number of irregular scouring zones in the working face.In order to carry out accurate detection,the mathematical modeling software MATLAB was used to establish the geological model of the coal seam scouring zone.Combined with the ground penetrating radar numerical simulation software gprMax,the forward modeling research was carried out,and the detection results of different radar frequencies and borehole spacing were obtained.The optimal frequency of borehole radar detection in working face and the optimal detection spacing of borehole radar detection were analyzed and summarized.

关 键 词：煤层冲刷带 钻孔雷达 地质模型 数值模拟 MATLAB gprMax 

分 类 号：TD163[矿业工程—矿山地质测量]