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Shenzhen-Jiangmen Railway – SJSG-8 Section
Project Name
Shenzhen-Jiangmen Railway – SJSG-8 Section (深江铁路SJSG-8标)
Location
Hongqili Waterway, Zhongshan City, Guangdong Province, China. The project is located approximately 3.5 km downstream of the existing Hongqili Highway Bridge .
Function
The project centers on the Hongqili Waterway Public-Railway Bridge. It is a key control project of the Shenzhen-Jiangmen High-Speed Railway, a major part of China’s “Eight Vertical and Eight Horizontal” high-speed rail network and the coastal corridor . Upon completion, it will connect the Shenzhen Qianhai and Guangzhou Nansha Free Trade Zones with a 30-minute high-speed rail link .
Key Specs
- Type: Double-tower, double-cable-plane steel-concrete composite box-truss girder cable-stayed bridge, featuring a world-first ultra-short side span design for a public-railway combined structure .
- Length: 1.411 km ; main bridge span is 1.41 km with a main span of 808 meters .
- Deck: Upper deck carries an 8-lane urban expressway (80 km/h); lower deck carries 4 high-speed railway lines (for Shenjiang Railway and Guangzhou-Zhuhai-Macao High-Speed Railway, 250 km/h) .
- Towers: Two H-shaped main towers, 258 meters high .
Key Project Challenges
- 4m diameter super-large diameter pile foundation construction in deep soft soil strata .
- 258m main tower construction with strict quality and crack control requirements .
- Main girder alignment control for the innovative steel-concrete composite structure .
- Long-distance incremental launching of steel truss girders .
Construction & Investment Entities
- Main Contractor (Overall Section SJSG-8): China Railway Major Bridge Engineering Group Co., Ltd. (中铁大桥局集团有限公司) .
- Executing Unit: China Railway Major Bridge Engineering Group Fifth Engineering Branch Co., Ltd. (中铁大桥局集团有限公司第五工程分公司) . The project is managed by the SJSG-8 Project Management Department .
- Project Owner/Management: Xiamen-Shenzhen Railway Guangdong Co., Ltd. .
- Designer: China Railway Siyuan Survey and Design Group .
Project Status (as of mid-2026)
Under active construction. Key milestones achieved: The main bridge’s largest pile cap (50# main pier) was completed in late 2023 . Both main towers entered the mid-tower column phase in mid-2024 , and by October 2024, the 49# tower surpassed the 100-meter mark . Construction of ancillary works, such as the concrete ballast wall and vertical wall, was being tendered in 2025-2026 .
