<p>The paper describes the selected significant developments, with the emphasis on the following findings: Charts are presented for more accurate determination, of the five input parameters of the RME, using graphical representation. New expressions to evaluate ...

Over 500 case histories were analysed in two years to bring the Rock Mass Excavability (RME) index to fruition and demonstrate its effectiveness on five current projects. It should be emphasised that the RME index does not replace the RMR or Q systems as used ...