Real-time Microseismic Monitoring and Intelligent Early Warning for Collapse Disaster in Shallow Tunnel
In view of the difficulty of effective warning of surrounding rock collapse disaster in shallow-buried tunnels,several key technologies are studied,including the multi-section distributed layout of microseismic sensor,the bolt end installation scheme of microseismic sensor,the efficient noise reduction and intelligent identification method of microseismic monitoring signal,the risk management level standard of collapse disaster warning,the cloud intelligent analysis platform of microseismic monitoring signal and the intelligent collapse warning system based on microseismic monitoring.These technologies are applied to the diversion tunnel project of the newly built No.1 irrigation and power generation water release system in Naban Reservoir,Guangxi.The results show that the key technologies developed are feasible,can solve the limitation problem that the existing microseismic monitoring technology is not fully applicable to the broken surrounding rock of shallow tunnel,and can effectively improve the real-time and work efficiency of tunnel collapse microseismic monitoring and early warning.Combined with the project case,the tunnel collapse precursor characteristics based on microseismic characteristic parameters are presented.
shallow tunnelcollapse disastermicroseismic characteristicsreal-time monitoringintelligent early warning
国家科技期刊平台
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