金属矿山巷道围岩安全监测诊断预警体系

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

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。

Aiming at the problem of the mine laneway monitoring system diagnosis and early warning function is weak,in- perfect 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, di- agnosis and early warning system to supervise the safety of surrounding rocks for metal mine. The system consists of such mod- ules as optimization of monitoring points, de-noising of monitoring signal, analysis of signal frequency-domain energy, determi- nation 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 ac- cumulated 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.