ABSTRACT
In this study, uplift failure of the rock mass surrounding rock anchors was studied using physical tests as well as numerically simulated. This paper attempts to correlate anchor performance with rock mass features. Analysis of the numerical models revealed that performance of the anchors is positively correlated with the rock mass properties like core recovery and RQD. It also revealed that length of the anchors plays an important role in achieving uplift resistance with longer anchors performing better than shorter ones. Results from numerical analyses can be used to supplement field tests albeit with an understanding that they may produce slightly better values.
