Simulated Rockburst Experiment - Evaluation Of Rock Bolt Reinforcement Performance

Haile, A. T.
Organization: The Southern African Institute of Mining and Metallurgy
Pages: 6
Publication Date: Jan 1, 2001
Detailed monitoring of the response of the rock mass between rockbolt reinforcement units subjected to a simulated seismic source has been successfully conducted. This work has shown the increase in amplification of the Peak Particle Velocity (PPV) with distance from a rock bolt unit, and, a minimum PPV for rockburst damage for the given site characteristics. This understanding, at this site, will allow the design of a suitable rock bolt spacing to prevent unravelling of the rock mass between the rock bolt units for a given level of seismicity. Or, alternatively, an estimation of the requirement for a suitable fabric support system, for the anticipated level of seismicity, can be made.
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