The Tunnel Boring Machine (TBM) Lifting Gantry Crane, also known as a shield gantry crane or tunnel crane, is a specialized lifting system designed for underground tunnel construction projects. It is mainly used for lifting shield machine components, transporting tunnel segments, and handling construction materials during shield tunneling operations.
The crane adopts a door-type steel structure with excellent stability and strong load-bearing capability. Its main structure consists of rigid support legs, a main beam, and a lifting trolley, which typically travel along pre-installed tracks. The operating system includes lifting, traveling, and fine-positioning mechanisms, enabling accurate positioning and efficient material handling.
The main applications of TBM lifting gantry cranes include shield machine component installation, tunnel segment transportation, and construction material transfer. The lifting mechanism adopts frequency conversion control technology, ensuring smooth operation, precise control, and reliable performance.
The crane span can be customized according to tunnel dimensions, with a common span range of 10–34 meters. The rated lifting capacity generally ranges from 50 to 400 tons, meeting the requirements of different underground construction projects.
With its compact design, strong adaptability, and efficient operation capability, the tunnel lifting gantry crane is especially suitable for limited underground working spaces. Its low-clearance structure allows it to operate effectively in tunnel environments. The control system supports manual and semi-automatic operation, while advanced models can be equipped with remote monitoring functions.
It is widely used in large underground engineering projects, including subway tunnels and cross-river tunnels, and serves as an essential lifting device for shield construction.
Subway Tunnel Construction:
In urban rail transit projects, TBM lifting gantry cranes are mainly used for shield machine assembly, commissioning, tunnel segment lifting, and transportation of construction materials.
Cross-River Tunnel Projects:
For large-diameter underwater tunnels, heavy-duty shield lifting gantry cranes are used for lifting and positioning large prefabricated tunnel components.
Urban Underground Infrastructure Construction:
In underground utility projects with limited operating space, low-clearance models provide flexible solutions for pipe segment installation and mechanical lifting operations.
Mine Tunnel Excavation:
With enhanced configurations such as explosion-proof electrical systems and wear-resistant steel wire ropes, the crane can adapt to harsh mining environments. Dual-gantry configurations can support simultaneous operations, including ore transportation and tunnel support installation.
Ultra-High Load Capacity and Long-Span Design
Designed specifically for heavy TBM components such as cutterheads and shield machine bodies, the crane provides lifting capacities of hundreds of tons. Its customized long-span structure can reach several tens of meters, adapting to the special space requirements of tunnel construction.
Intelligent Precision Lifting System
Equipped with advanced control systems and anti-sway technology, the crane enables accurate positioning and stable lifting of heavy components, improving construction efficiency and safety.
Strong Tunnel Adaptability
The modular segmented design allows convenient transportation, assembly, and dismantling inside tunnels. Dust-proof and moisture-resistant designs improve reliability under harsh underground working conditions.
Multi-Level Safety Protection
The crane integrates multiple safety systems, including overload protection, anti-derailment limit switches, and hydraulic or electric emergency braking systems, providing comprehensive protection during operation.
Multifunctional Operation Configuration
The lifting system supports different lifting attachments, such as electric hoists and balancing cranes, allowing it to perform various tasks including tunnel segment installation, equipment maintenance, and material handling.
Intelligent Control Options
Optional remote control and automated operation systems are available. Intelligent operation modes, including lifting suspension and locking functions, improve operating flexibility and efficiency.
| Unit | Parameter Value | |||
|---|---|---|---|---|
| Capacity | T | 100 | ||
| Span | m | 20 | 22 | 24 |
| Lifting height | m | 20 | ||
| Lifting speed | m/min | 0.37-3.7-6 | ||
| Trolley travelling speed | m/min | 0.5-25 | ||
| Crane travelling speed | m/min | 1.4-14 | ||
| Max. Wheel load | KN | 230 | 235 | 240 |
| Rail recommended | Model | QU80 | ||
| Total motor power | kw | 145 | ||
| Main dimension (mm) | Span(m) | 20 | 22 | 24 |
| Crane base distance | W | 10700 | ||
| Crane width | B | 16380 | ||
| Hook left limitation | S1 | 1750 | ||
| Hook right limitation | S2 | 1900 | ||
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