The Lianyan Railway River Bridge starts at Tianlou Town, Guannan County, and ends at Laoshe Township, Xiangshui County. It spans Lianyungang and Yancheng. It is the bridge with the largest span of the entire Lianyan Railway. The construction of the bridge started in April 214. It has a total length of 104 kilometers and requires more than 40 river crossings: the main bridge spans the Guanhe River, known as the North Huangpu River, and is 470 meters long. It is the second cantilevered bridge in China. Continuous steel truss girder and flexible arch combined structure railway bridge
The bridge design structure is complex, the machining accuracy is high, the large steel structure members and bridge decks are hoisted, and the safety risk is high for aerial operations on the water. It is a control project and key project for the entire Lianyan Railway.
The foundation adopts large-diameter and super-long bored piles with a diameter of 2 meters and a drilling depth of 100 meters to solve the problem of deep-water main pier pile foundation construction: it is used in a river with a flow of 2 meters per second
High-altitude arms fight, high risk and many other difficulties