Author:Spottiswoode, SM; Milev, AMDate:Aug 2002Use of the mine layout design criteria of ERR (Energy Release Rate), APS (Average Pillar Stress) and ESS (Excess Shear Stress) have not provided a good control of seismicity. It has become apparent that more complex models of rock mass behaviour ...Read more
Author:Spottiswoode, S; Napier, J; Milev, A; Vieira, FDate:Apr 2000This report describes a re-analysis of previous work on the relationship between ERR and seismicity. Data from four mines spanning the Ventersdorp Contact, Carbon Leader and Vaal Reefs were analysed using the MINF suite of programs (e.g. ...Read more