Post Graduated Master Course TUNNELLING AND TUNNEL BORING MACHINES POLITECNICO DI TORINO Post Graduated Master Course TUNNELLING AND TUNNEL BORING MACHINES Subject of the lesson : TBM Sections Concepts Lecturer : René Raúl Ramírez Vázquez Golden Sponsors Sponsors Academic Year: 2009-10

TBM Sections POLITECNICO DI TORINO Cutting head Main Drive Screw Conveyor Ground Conditioning System Sealing System Grout Injection Erector and Segment Handling Academic Year: 2009-10 Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

TBM Requirements Lovat User POLITECNICO DI TORINO Design Needs Installation Eng. Specifics Needs User Lovat Academic Year: 2009-10 Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

Cuttinghead Section POLITECNICO DI TORINO Face Support Soil Cutting Material Inflow Early Soil Conditioning Soil Type Consideration Tunnel Length Soft/Rock/Mix Face Rippers/Disc Cutters GCS Ports Flood Doors Face Opening Center Nose Cone Need Options Design Operation Typical Layouts with Flood Doors Soft Ground Mix Face Rock Face Ripper Tooth Change Disc Cutter Change Wear Indicator Academic Year: 2009-10 Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

Main Drive POLITECNICO DI TORINO Electric Drive Advantage Less Maintenance Cleaner Environment Ergonomics Improved Higher Efficiency Better Torque Response Requirements: Speed – Torque Ratio Power Geology Knowledge TBM Diameter Bearing Types Gear Box Capacity Hydraulic Drive Electric Drive Need Options Design Operation Thrust Interlock Temperature Control Sealing System Oil Samples Large Diameter Rollers High Capacity Gears Torque vs. Speed Curve Layout Academic Year: 2009-10 Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

Screw Conveyor POLITECNICO DI TORINO Geology Length Sealing Plug Speed and Power Capacity Wear Ground Conditioning Pressure Monitor Location Flexibility Multiple Drives Multiple Injection Ports Emergency Closure Reinforced Auger Tip Case Protection EPB Cells Need Options Design Operation Peripheral Central Screw and Belt Screw with Muck Pump Long Screw Conveyor Extension into Chamber Pressure Monitor Ground Conditioning Caliper Gates Operation Academic Year: 2009-10 Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

Ground Conditioning POLITECNICO DI TORINO Reduce Cutting Friction Power Reduction any ROA Minimize Tools Wear Prevention of Clogging Pressure Balance at Face Rapid Response Injection points: Cuttinghead Face Cuttinghead Chamber Spoil Removal System Outside Tunnel Shield Water High Pressure Need Options Design Operation Maximum Capacity Min & Max Rate Number of Lines Dosing Pumps Tanks Air Compressor Capacity Transfer Pumps Additives Selection Operation Parameters Control Selection Total Usage Academic Year: 2009-10 Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

Sealing Systems POLITECNICO DI TORINO v Elements to be controlled: Active Articulation Passive Articulation Trailing Shield Main Drive Seal Elements to be controlled: Ground water Surrounding ground Ground Conditioning Grout Need Options Design Operation Main Drive Sealing Active Articulation Seal Passive Articulation Seal Trailing Shield Sealing Multiple Stage Bearing Sealing Positively Pressurized Automatic Sealing Profile Rubber Seals Emergency Seal Systems Multiple Rows Wire Brush Tail Seals Main Drive Pressurized Seal Automatic Tail Seal Grease Injection Academic Year: 2009-10 Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

Grout Injection POLITECNICO DI TORINO Trailing Shield Injection Segment Injection Multiple Injection Points Volume Controlled Pressure Controlled Grout Transfer Pumps Deposits with Agitators Lining Support Minimize Settlements Improve Lining Sealing Transfer Storage Capacity Need Options Design Operation Typical Setups: Peristaltic Pumps Piston Pumps Two Part Injection Segments Grout Injection Tail Shield Gout Injection Academic Year: 2009-10 Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

Erector and Segment Handling POLITECNICO DI TORINO Erector and Segment Handling 1 or 2 Full Rings Storage Autorotation Segment Cars Various Pick-Up Methods Guidance System Interface Multiple Ring Build Stations Electro-Hydraulic Controls Remote Radio Controls Storage Area Loading Sequence Segment Design Optimal Key Position Capacity Ring Build Cycles Yaw Pitch Roll Translation Radial Rotation Need Options Design Operation Erector Movements: Translation Radial Rotation Pitch Roll Yaw Ring Type Erector Arm Type Erector Bulkhead Supported Ball and Cup Pick-Up Vacuum Pick-Up Academic Year: 2009-10 Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

www. .com POLITECNICO DI TORINO Academic Year: 2009-10 Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES