摘要
雷达波的穿透能力大小是衡量雷达在矿井中应用效果好坏的重要指标，它取决于介质的电磁波衰减系数，衰减系数越小，雷达波的穿透能力越大，衰减系数随着介质电导率的增大而增大，煤矿井下介质主要为低电导率的煤层、砂岩、页岩、灰岩，它们的衰减系数较小，雷达波在这些介质中穿透能力较大。因此，理论上地质雷达在煤矿的应用是可行的。通过实例介绍了剔除井下干扰因素的滤波方法及滤波参数的选取，说明了地质雷达在井下探测断层及灰岩界面有较好的应用效果。
Penetration ability of radar wave is an important index for evaluation of application of radar in underground mine. Penetration ability depends on attenuation coefficient of electro-magnetic wave in media. The smaller the attenuation coefficient, the greater the penetration ability of radar wave is. The attenuation coefficient increases with the increase of medium conductivity. The media in underground mine are coal seam, sandstone, shale, limestone of low conductivity. Their attenuation coefficients are small,and radar wave has high penetration ability in these rocks. Theoretically,it is feasible to use GPR underground .Examples are given to describe a filtering method to eliminate underground interference and selection of filtering parameters. The results of prospecting underground faults and the interfaceof limestone with GPR are satisfactory.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1995年第5期479-484,共6页
Journal of China Coal Society
关键词
地质雷达
煤矿
数据处理
应用
GPR, underground mine, fault, interface of limestone, data processing
