Dynamic support evaluations for implementation by seismic hazard domains

Dynamic ground support is a common component of risk management strategies in seismic mines. In this paper, dynamic ground support design is presented for a deep Canadian mine where dynamic support classes are established for seismic hazard categories based on potential rockbursting mechanism, the expected damage intensity, distance to design event, and design event magnitude. Considering support system survival limits and distance to probable design events, various aspects of support system functions are evaluated. Support system static capacity, deformation capacity, and energy capacity are analysed to evaluate support design strategy specific to probable events of a given magnitude occurring within a given distance. The final design includes multiple support system classes and guidelines on support class utilisation based on proximity to seismic hazard domains.