YOUR STEEL STRUCTURE ENGINEERING EXPERT
We are a steel structure fabricator and EPC contractor based in Jining, Shandong, China, with 17 years of experience since 2009 and delivered projects in 60+ countries. Shandong Shijie Heavy Industry Co., Ltd. and its sister company, Henan Hengfeng Steel Structure Engineering Co., Ltd., operate as one manufacturing group under the same ultimate ownership. SynJect is the group’s export brand.
Industrial Steel Structure Tunnel Design and Fabrication
Steel structure tunnels can also integrate ventilation systems, lighting facilities, drainage systems, fire protection structures, and maintenance access platforms according to project requirements. They are widely applied in highway tunnels, railway tunnels, underground passageways, mining transportation corridors, municipal utility tunnels, and industrial enclosed channel systems, providing efficient, safe, and durable infrastructure solutions for modern engineering projects.
Seismic-Resistant Steel Structure Tunnel Construction
Core Features & Advantages
Modern steel tunnel support components are all manufactured from high-quality heavy-duty steel. Through optimized mechanical design, they ensure stable load transfer, high overall structural rigidity, and strong impact resistance, enabling them to effectively withstand ground settlement and complex underground stress variations. The streamlined on-site assembly process significantly reduces underground construction time and accelerates the overall project schedule. Designed to withstand damp and dark underground environments, these components require minimal routine maintenance and maintain stable performance over the long term.
♦ Cut down overall engineering investment and control construction costs
♦ Wide applicability to match various geological environments and tunnel types
♦ Accurate prefabricated parts, easy installation and time-saving construction
♦ Compliant with tunnel safety standards, stable and high safety level
♦ Multi-level bearing design to satisfy large traffic and geological pressure demands
Applications
This series of steel structural tunnel supports is specially developed for underground traffic and infrastructure engineering, fully meeting the construction needs of mountain tunnels, urban underground passages, mine tunnels and traffic diversion tunnels. It can realize stable inner space support, smooth passage layout and safe underground operation environment, and steadily bear stratum pressure, vehicle load and external geological stress.
♦ Complete steel support system for mountain crossing traffic tunnels
♦ Multi-section steel truss frame for urban underground pedestrian tunnels
♦ High-pressure resistant steel structure for mine and mining area tunnels
♦ Steel reinforced framework for underground traffic diversion passages
♦ Core bearing support and inner protection structure for all kinds of tunnels
Vision & Mission
We are committed to providing safe, efficient, and environmentally friendly solutions for global customers through continuous technological innovation and exceptional product quality, driving industry progress and collectively creating a better future.
CONTACT
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SHANDONG SHIJIE HEAVY INDUSTRY CO., LTD
Headquartered in the High-Tech Development Zone of Jining, Shandong Province, Shandong Shijie Heavy Industry Co., Ltd. and its sister company, Henan Hengfeng Steel Structure Engineering Co., Ltd., operate as a unified manufacturing group under the same ultimate ownership. Globally, we deliver our end-to-end solutions through our dedicated export brand, SynJect.
Drawing on 17 years of export expertise and a proven track record across more than 60 countries, we provide integrated EPC contracting and heavy fabrication. This global reach is backed by our robust manufacturing footprint: an 80,000 m² facility with an annual capacity exceeding 500,000 tons, RMB 120 million in registered capital, and a skilled workforce of over 600 professionals.
Our core expertise spans civil construction, petrochemical facilities, long-distance pressure pipelines, heavy steel structures, pressure vessels, and skid-mounted refueling stations.
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INDUSTRIAL STEEL BUILDINGS
