1. TBM tunnelling in difficult ground conditions;Barla,2000
2. Tunnelling in Jointed and Faulted Rock;Barton,2000
3. Geotechnical design;Barton;World Tunn.,1991
4. Examples of rock pressure problems during tunnel and shaft boring;Blindheim,1982
5. Tunnel boring machine performance in basalts of the Lesotho formation;Boniface;Tunn. Undergr. Space Technol.,2002