金属矿山巷道围岩安全监测诊断预警体系

针对矿山巷道监测系统诊断预警系统功能弱,系统不完善的难题,通过将基于小波能量理论所建立的爆破震动去噪方法、围岩类别判定指标、爆破震动效应评价指标集成,形成可实现长期实时监测的金属矿山巷道围岩稳定性监测、诊断、预警体系。金属矿山巷道围岩安全监测诊断预警体系包括监测点布点优化、监测信号去噪、信号频域能量分析、巷道围岩类别确定、巷道围岩安全判别、巷道围岩安全预警等模块内容。该体系的最大特点是根据实时监测到的信号进行诊断分析,并依据所积累的数据库文件进行比对,最终得出诊断结论并给出相应的工程措施,该体系的建立为提高金属矿山安全监测技术水平奠定了基础。

Safety Monitoring,Diagnosis and Early Warning System of Surrounding Rocks of Metal Mine

Aiming at the problem of the mine laneway monitoring system diagnosis and early warning function is weak,inperfect system,the de-noising method of blasting vibration，the determination of surrounding rock categories，and the evaluation index of blasting vibration effect based on the wavelet energy theory are integrated to form a long-term real-time monitoring，diagnosis and early warning system to supervise the safety of surrounding rocks for metal mine.The system consists of such modules as optimization of monitoring points，de-noising of monitoring signal，analysis of signal frequency-domain energy，determination of surrounding rocks categories，safety discrimination of surrounding rocks，and safety pre-warning of surrounding rocks.The largest function of this system is that it can make the diagnostic analysis on the real-time signals and contract with the accumulated database files to draw the final diagnosis conclusion and then the related engineering measures are given.The system provides a foundation for improving the technical level of safety supervision for metal mines.