Introductory technical guidance for civil engineers, geotechnical engineers and other professional engineers and construction managers interested in design and construction of tunnels and shafts in rock. Here is what is discussed: 1. FUNDAMENTAL APPROACH TO GROUND SUPPORT DESIGN, 2. FUNCTIONAL REQUIREMENTS OF TUNNELS AND SHAFTS, 3. MODES OF FAILURE OF TUNNELS AND SHAFTS, 4. SEISMIC EFFECTS ON TUNNELS.