1. Engineering classification of rock masses for the design of tunnel support;Barton;Rock Mech.,1974
2. Engineering classification of jointed rock masses;Bieniawski;Trans. S. Afr. Inst. Civ. Eng.,1973
3. Bjurstrom, S., 1974. Shear strength of hard rock jointed reinforced by grouted untensioned bolts. In: Proc., 3rd ISRM Congress, Denver, USA, pp. 1194–1199.
4. Chan, L.Y., Goodman, R.E., 1983. Prediction of support requirements for hard rock excavations using keyblock theory and joint statistics. In: Proc., 24th U.S. Symp. Rock Mech. Texas, pp. 557–576.
5. Probabilistic analysis of underground excavation stability;Chen;Int. J. Rock Mech. Min. Sci.,1997