1760 meters across the river!Nanjing Xianxin Road crossing the Jiangwou "Hubei Jian"

On September 20, the south bank of the Yangtze River in Qixia District, Nanjing, Jiangsu, a 260 -meter -high towering main tower came into view. The bridge next to it was standing, and an Yangtze River Bridge had been taken shape. This is the sixth Yangtze River Bridge in Nanjing, Nanjing Xianxin Road, crossing the Jiang Channel. The A3 and A5 bids are responsible for the A3 and A5 bidding section of the Second Aviation Bureau of E central Enterprise Enterprise. It is expected to complete the construction of all the main saddle in October.

Nanjing Xianxin Road across the Jiangdou passage 13.17 kilometers. It is an important link connecting the main urban area of ​​Nanjing and the National Jiangbei New District and Nanjing Economic and Technological Development Zone. The cross -river main bridge across the river is the overall steel box beam suspension bridge with a single -span of 1760 meters. The main tower is 263.8 meters high. It is currently the second largest span suspension bridge in China, ranking among the forefront of the same type of bridge in the world.

The reporter took the construction elevator and rose to the top of the southern main tower with a height of more than 260 meters in 6 minutes. The tower was overlooking. On the bridge tower, workers are using mechanical equipment to implement the main saddle crane operation. There are two main saders on each main tower of the North and South. Each set of main saddle is divided into 4 hunches, the hanging height is about 265 meters, and the total weight of the lifting is about 123 tons.

As one of the three crossed river channels that are being built in Nanjing, Nanjing Xianxin Road crossing the river channel is also the first batch of "Ping An Centennial Quality Project" demonstration projects for the Ministry of Transport. "The upper structure is the key controlling point of the entire project, and it is also the water construction site with the largest difficulty and the highest risk factor in the entire line." Standing at the top of the main tower, the project secretary of the China Communications Second Aviation Bureau Rao Xi introduced.

He told reporters a detail: the small screw installation reflects quality and accuracy. The upper structure of the project needs to be accurately embedded with more than 4,000 cone nuts. More than 4,000 cone nuts have reached millimeter -level accuracy.

The anchor is the basis of the suspension bridge. The China Communications Second Aviation Bureau adopts a variety of process and work innovation. Rao Xi said that the south anchor was based on the underground continuous wall foundation. The depth of the foundation pit excavation reached 58.4 meters and the amount of concrete pouring was 18,600 cubic meters.

Nanjing Xianxin Road crossing the Jiang Channel Project is expected to be completed and opened to traffic in 2024. After opening to traffic, it will alleviate the Jiangjiang traffic bottleneck, which is of great significance to promote the integrated development of Ningzhen Yang.

Jiangsu is a place to start by the Second Airlines Bureau of China Communications. In 1950, the Ministry of Communications of the State Administration of Government established the "Pukou Wharf Repairing Committee" in Nanjing, which is the predecessor of the China Communications Second Aviation Bureau. The Second Airlines Bureau started in Jiangsu, moved to Anhui, and took root in Hubei. In Jiangsu, the Second Airlines Bureau has built a number of world -class bridges, with many super engineering and leading the development of the industry. As of now, the Second Airlines Bureau has accumulated about 600 projects in the Jiangsu market. Currently, 48 projects under construction and total contracts have exceeded 25 billion yuan.

It is reported that the world's top 10 cross -sea bridges, 10 major cable bridges, and 10 suspended cable bridges, the Second Airlines bureau has established 5 of them.

(Hubei Daily All -Media reporter Dai Hui, correspondent Sui Yehui, Chen Jialun, Zhou Weiqing)

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