... and residual strength as well as other post-peak parameters. Particular attention was given to the study of dilatancy. Dilation angle of these intact rocks was fitted to two pioneering but still recent dilatancy models (Alejano & Alonso 2005; Zhao & Cai 2010), having the feature of being plastic-shear...

... that could be easily implemented in numerical codes. To facilitate the application of this dilatancy model in a code as widely used as FLAC (Itasca, 2000), a rela- tionship needs to be established between the plastic parameters r" and e For null dilatancy it has been shown that e'" is twice r", a ratio...