煤矿掘进巷道地质雷达超前探测数值模拟及应用  

Numerical Simulation and Application of GPR in Advance Detection of Coal Tunneling

作　　者：仇念广 QIU Nianguang(CCTEG Chongqing Research Institute,Chongqing 400039,China)

机构地区：[1]中煤科工集团重庆研究院有限公司

出　　处：《矿业安全与环保》2019年第5期42-46,共5页Mining Safety & Environmental Protection

基　　金：国家“十三五”科技重大专项课题(2016ZX05045004-007)

摘　　要：基于电磁波传播理论和时域有限差分原理,通过开展正演模拟,分析了地质雷达的反射响应特征,进一步表明地质雷达应用于煤矿掘进巷道超前探测中的有效性。在新景矿针对已知地质异常进行雷达探测,依据探测结果并结合正演结果,总结了10种地质异常或现象的地质雷达反射特征。以此为基础开展应用试验,地质异常体探测准确率可达89%,地质雷达在煤矿掘进巷道超前探测中的应用效果进一步得到提升。Based on the electromagnetic wave propagation theory and FDTD,forward modeling was carried out to analyze the reflection response characteristics of geological radar,it further showed that GPR was effective in advance detection of coal tunneling.Radar detection of known geological anomalies was carried out in Xinjing Coal Mine,based on the detection results and forward modeling results,10 GPR reflection characteristics of geological anomalies or phenomena were summarized.As the application test carried out on this basis,the detection accuracy rate of geological anomalies can reach 89%,the application effect of GPR in advance detection of coal tunneling is further improved.

关 键 词：煤矿 掘进巷道 地质异常体 超前探测 地质雷达 时域有限差分 正演模拟 

分 类 号：TD163[矿业工程—矿山地质测量] P412.25[天文地球—大气科学及气象学]