sentences:  Scores typically range from 0 to 100, with 100 being the most competent rock mass.The term "rock mass" incorporates the influence of both intact material and discontinuities on the overall strength and behavior of a discontinuous rock medium.While it is relatively straightforward to test the mechanical properties of either intact rock or joints individually, describing their interaction is difficult and several empirical rating schemes (such as RMR and SMR) are available for this purpose.