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In Tunnel Boring Machine (TBM) projects, steel sleepers are primarily used as temporary track systems to facilitate logistics—transporting segments, equipment, and muck—while adapting to the tunnel's curved invert. They are specifically engineered to withstand the high vibrations and heavy loads of TBM construction vehicles.
Specialized TBM Applications
Specialized TBM Applications
Gantry Rail Sleepers: These are custom-designed to match the specific diameter of the TBM. They support the massive weight of the TBM's back-up gantries and can be manufactured as single units or connected with locking pins for rapid extension.
Curved Invert Adaptability: Unlike standard flat ties, TBM steel sleepers are often processed from steel plates or channel steel bent to the precise radius of the tunnel's concrete segments.
Logistics Efficiency: Because they are lightweight and stackable, they significantly reduce logistics costs—up to 3 times more sleepers can be transported per container compared to concrete.
Reusability: After the tunnel is bored and the permanent track is ready to be laid, temporary steel sleepers are easily disassembled and can be reused in future projects.
Key Technical Advantages
Key Technical Advantages
Low Profile: They require less ballast, allowing for track installation in the extremely tight overhead clearances typically found between the TBM gantry and the tunnel crown.
Load Distribution: They are designed to distribute the immense pressure of segment cars and locomotives evenly across the uneven tunnel floor to prevent damage to the newly installed concrete lining.
Integrated Systems: Signum Rail Fastening provides complete TBM infrastructure kits that integrate steel sleepers with walkway platforms and cable brackets.
Performance Comparison
Performance Comparison
Signum Rail Fastening offers a wide range of sleepers for different purposes. Our products include steel sleepers, wooden sleepers, and cement sleepers.
Signum Rail Fastening also offers customization based on your TBM's specific gantry distance and axle load requirements.
Contact us and get a quick quote.
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