1. 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:

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

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

4. 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: Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

5. 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: Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

6. 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: Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

7. 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: Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

8. 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: Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

9. 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: Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

10. 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: Post Graduate Master Course TUNNELLING AND TUNNEL BORING MACHINES

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