1. Engineering rock mass classifications;Bieniawski,1989
2. Engineering classification of rock masses for the design of tunnel support;Barton;Rock Mech Rock Eng,1974
3. Hoek E, Carranza-Torres C, Corkum B Hoek–Brown criterion—2002 edition. In: Hammah R, Bawden W, Curran J, Telesnicki M, editors. Fifth N Am Rock Mech Symp 17th Tunnelling Association Can Conf. Toronto: University of Toronto Press; 2002, vol 1, p. 267-273.
4. Underground excavations in rock;Hoek,1980
5. Hoek E, Brown ET The Hoek–Brown failure criterion—a 1988 update. In: Curran J, editor. The 15th Canadian rock mechanics symposium. Toronto: University of Toronto Press; 1988, p. 31-38.