SHORT COURSE ON TUNNELLING KATHMANDU

Course contents

Day 1

• Philosophy of Tunnelling
• Fundamentals of rock mechanics related to tunnelling
• Site investigation and ground characterisation
• Geological factors affecting tunnelling
• Tunnel Construction Techniques: TBM, drill-&-blast, road-headers, cut-&-cover tunnels, ripping, ground treatment

Day 2

• Tunnel alignment selection issues
• New Austrian Tunnelling Method (NATM), Norwegian Method of Tunnelling (NMT), ADECO-RS Method
• Tunnel support design
• Numerical methods of analysis and design of tunnels using various software tools from Rocsicence, world’s leading developers of geotechnical software
• Rock bolts and dowels, Shortcrete

Day 3

• Tunnelling hazards: squeezing, rock burst, chimney formation, face collapse, flooding etc.
• Tunnelling through squeezing ground conditions
• Ground improvement techniques: grouting, forepoling, face dowels, roof umbrella, ground freezing

Day 4

• Constraints of urban tunnelling
• Cut-&-cover metro structures
• Planning and logistics aspects of mechanized metro tunnelling
• Tunnel instrumentation<
• Design of concrete lining
• Segmental tunnel lining
• Tunnel waterproofin
• Tunnelling case histories from India and abroad