Wuxin Intelligent TIB (Tunnel Invert Bridge) Trestle Bridge
Wuxin Intelligent TIB (Tunnel Invert Bridge) Trestle Bridge: Empowering Tunnel & Underground Construction with Smart Equipment
In tunnel, underground mine, water conservancy, and hydropower projects, invert construction has long been a bottleneck that constrains overall progress. The challenge is twofold: ensuring continuous invert concrete placement while keeping the tunnel open for mucking and material transport to the working face. With over two decades of experience in engineering equipment, Hunan Wuxin Intelligent Equipment Group Co., Ltd. (Wuxin Intelligent, stock code: 920174) has developed the self‑propelled hydraulic invert trestle bridge (Tunnel Invert Bridge, TIB) as its core solution, providing a mature, systematic answer to this industry‑wide pain point.
1. Product Positioning: A Dual‑Function Platform – “Traffic Above, Work Below”
Wuxin Intelligent’s TIB trestle bridge is primarily deployed in the invert construction zone of tunnels. Its core function can be summarized as “traffic above, work below” :
Traffic function – The TIB spans the invert working section, allowing all types of vehicles and personnel to pass normally over the bridge, effectively bridging the natural or construction‑induced gap.
Workspace provision – The space beneath the TIB provides room for rebar tying, concrete placement, and other invert operations, enabling simultaneous invert construction and face advance.
Optional formwork assistance – The TIB can assist in positioning and advancing the invert formwork for concrete shaping.
This product is widely applicable in scenarios where spatial separation exists, such as tunnels, benches, foundation pits, river channels, and hydraulic engineering, making it a key piece of equipment in fully mechanized tunnel construction.
2. Core Technology: From Self‑Propelled Hydraulics to Intelligent Upgrades
The technological leadership of Wuxin Intelligent’s TIB trestle bridges is built on years of R&D investment and a robust patent portfolio.
2.1 Self‑Propelled Hydraulic Technology – Automatic Travel and Precise Positioning
The independently developed YQ‑D self‑propelled hydraulic invert trestle bridge (TIB) won the “Excellent Enterprise Award” at the 6th China Innovation & Entrepreneurship Competition (Growth Group) for its advanced technical solution. Equipped with a hydraulic automatic balancing system, it enables overall forward movement and precise positioning, featuring automatic travel and lateral movement functions, ensuring that face excavation and invert construction proceed simultaneously without interference.
2.2 Patented Technology – An Industry Benchmark
Wuxin Intelligent holds deep technical expertise in TIB trestle bridges:
The core patent “Automatic Hydraulic Invert Trestle Trolley and Its Construction Method” was honored with the 20th China Patent Excellence Award – the first in the industry to receive this recognition.
The company has built a multi‑dimensional patent portfolio around TIB products, including dual‑lane invert bridges, box‑girder under‑slung self‑propelled hydraulic invert bridges, and step‑type mobile bridges.
Its TIB technology achievements, under the project “Systematic Technology Innovation and R&D Application of Tunnel Self‑Propelled Hydraulic Invert Trestle Equipment and Construction Methods,” have received high industry acclaim.
2.3 Continuous Intelligence Upgrades – Leading the Industry Direction
From traditional steel‑form bridges to self‑propelled hydraulic TIB bridges, and now to intelligent trestle systems integrating smart control and digital management, Wuxin Intelligent is constantly advancing toward intelligent, automated, and standardized equipment. The latest technologies now include intelligent concrete curing systems and intelligent material management systems for TIB bridges, elevating the bridge from a simple passageway to an intelligent construction management node.
3. Track Record: From Major Domestic Projects to Global Landmarks
Wuxin Intelligent’s TIB trestle bridges have been validated on numerous key projects at home and abroad:
Railway projects – Sichuan‑Tibet Railway, Shen‑Bai Railway, Yu‑Kun Railway, Yu‑Qian Railway, Xi‑Shi Railway, Xi‑Cheng Railway, and other national trunk lines.
Water conservancy – The Dian‑Zhong Water Diversion Project and other large‑scale hydraulic works.
Overseas projects – Indonesia’s Jakarta‑Bandung High‑Speed Railway, Bangladesh’s Padma Bridge, Kenya’s Mombasa‑Nairobi Railway, and the China‑Laos Kunming‑Vientiane Railway.
To date, Wuxin Intelligent has served more than 7,000 engineering projects globally, with products exported to over 20 countries and regions across Europe, South America, Africa, and Southeast Asia. With reliable product quality, the company has established long‑term, stable partnerships with leading Chinese contractors such as China Railway Group, China Railway Construction Corporation, China Communications Construction Company, and China Energy Engineering Group.
4. Corporate Strength: Two Decades of Deep Cultivation, Building a Moat of Technology
Wuxin Intelligent traces its origins back to 2005, spun off from a subsidiary of the state‑owned major constructor China Railway No.5 Engineering Group. Over more than two decades, the company has grown into a comprehensive manufacturer of concrete‑forming smart equipment, integrating products such as intelligent cantilever bridge‑building machines, segment beam formwork, intelligent precast production lines for bridge components, and self‑propelled hydraulic invert trestle bridges (TIB) .
The company operates seven industrial parks and six R&D centers, with an R&D team of over 400 technical professionals. It has accumulated more than 1,200 authorized patents, of which over 200 are invention patents. The average selling price of its TIB trestle bridges has steadily risen from RMB 731,600 to RMB 1,051,600 per unit, reflecting strong market recognition of the product’s added value.
5. Conclusion
As tunnel and underground construction moves decisively toward mechanization and intelligence, Wuxin Intelligent’s TIB trestle bridges – built on self‑propelled hydraulic technology, protected by a deep patent moat, and proven through global project experience – offer construction companies a safe, efficient, and reliable invert construction equipment solution.
Choose Wuxin Intelligent TIB trestle bridges – and partner with the quality and efficiency that have accompanied more than 7,000 projects worldwide.
