USE OF MICROSEISMIC MONITORING FOR ROCKBURST MANAGEMENT AT VALE INCO MINES

Seismic systems provide characterization of mine seismicity and represent a monitoring tool for the management of seismic hazard and rockbursting. Seismic data is employed at all Vale Inco mines in the Sudbury Basin to evaluate and perform mine development activities by optimized stope sequencing, destress blasting and ground support. It is also used for the calibration of numerical models and the identification of major seismically active geological structures for strategic placement of secondary or enhanced support. Seismic monitoring is essential in the assessment and mitigation of seismic hazard and risk, thus minimizing the exposure of equipment and personnel through the use of re-entry protocols.