1. Fracture growth around openings in large blocks of rock subjected to uniaxial and biaxial compression;Gay;Int. J. Rock Mech. Min. Sci. & Geomech. Abstr.,1976
2. Underground Excavations in Rock;Hoek,1980
3. Three-dimesional stress state and fracturing around cavities in overstressed weak rock;Bandis,1987
4. Deformation of tunnels—IV. Behaviour during failure;Kaiser;Int. J. Rock. Mech. Min. Sci. & Geomech. Abstr.,1987
5. Support methods in tunnels;Ortlepp,1973