基于震动波CT反演的巷道掘进超前探测技术研究  

Research on advanced detection technology of roadway excavation based on vibration wave CT inversion

作　　者：桂兵[1] 李成海 刘体军[1] 王九红[1] 郑有雷[1] 巩思园[2] GUI Bing;LI Chenghai;LIU Tijun;WANG Jiuhong;ZHENG Youlei;GONG Siyuan(Yanzhou Coal Mining Company Limited,Zoucheng 273500,China;State Key Laboratory of Coal Resources and Safe Mining,China University of Mining and Technology,Xuzhou 221116,China;Xuzhou Hongyi Science and Technology Development Company Limited,Xuzhou 221008,China)

机构地区：[1]兖州煤业股份有限公司,山东邹城273500 [2]中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州221116 [3]徐州弘毅科技发展有限公司,江苏徐州221008

出　　处：《采矿与岩层控制工程学报》2021年第2期72-79,共8页Journal of Mining and Strata Control Engineering

基　　金：国家自然科学基金资助项目(51874292,51934007)。

摘　　要：针对巷道掘进诱发冲击地压的难题,基于震动波CT反演原理和波速SIRT算法,研发出1种可实现井下主、被动震动波信号实时采集与CT反演的巷道掘进超前探测技术。该技术能实时监测掘进巷道超前位置以及工作面区域的震源分布,形成穿透煤岩层的高密度射线覆盖,生成大范围、高分辨率的波速反演云图,进而分析掘进巷道超前应力分布。以济三煤矿183下05掘进工作面为例进行研究,结果表明:震动波CT反演云图能得出掘进巷道超前应力集中分布区域,经过钻屑法的检验证明该区域属于高应力危险集中区,从而验证该技术能实时探测巷道掘进工作面周边的应力分布,应用效果良好。In order to solve the problem of rock burst induced by roadway excavation,the advance detection technology for roadway excavation is developed based on the principle of vibration wave CT inversion and SIRT algorithm,which can realize the real-time acquisition and CT inversion of underground active and passive seismic wave signals.This technology can monitor the advance position of the driving roadway and the source distribution of the working face area in real time,form the high-density ray coverage penetrating the coal seam,generate the large-scale and high-resolution wave velocity inversion nephogram,and then analyze the advance stress distribution of the driving roadway.Taking the 183 lower 05 driving face of Jisan coal mine as an example,the research shows that the inversion nephogram of seismic wave CT can obtain the distribution areas of stress concentration in advance of driving,which is proved to be a high stress dangerous concentration area using drilling cuttings method.This suggests that that the technology can detect the stress distribution around the driving head in real time.

关 键 词：震动波 CT反演 实时探测 掘进巷道 超前应力 

分 类 号：TD324[矿业工程—矿井建设]