The construction of major engineering projects in Jiangsu has accelerated.

The Yangtze River, which was winding more than 140 kilometers apart, broke the water through the river bridge and burst out of the north and south sides. In the next few years, while the convenient coastal residents travel, they will also witness Jiangsu's transportation forces in the process of practicing the integration of cross -river integration, promoting the construction of the Yangtze River Economic Belt and the integration of the Yangtze River Delta. Recently, before the National Day this year, the reporter came to the construction of the Xianxin Pass to the Jiang Channel, Longtan Yangtze River Bridge, and the Changtai Yangtze River Bridge. Their latest construction situation.

Xianxin Road crossed the Jiangwou:

The main tower of the north and the south hold hands, and the first guide is about to cross the river

"After the maintenance saddle is completed, the next step will be guided by the river construction." Standing at the top of the main tower of the main tower of the main tower of the river channel at 263.8 meters in Nanjing Xianxin, all of the vision outside the ears are "small mountains" a feeling of. Rao Xi, secretary of the Jiangxin Road project of Nanjing Xianxin Road, China Communications Second Airlines Bureau, introduced that the maintenance of the main saddle of the upper side of the bridge on the south bank is ongoing. There are 2 sets of main Saddle on each of the main tower of the north and south. Four times, the height of the lifting is about 265 meters, and the total weight of the lifting is about 123 tons. The work is completed, and it is expected that it will be arranged to cross the river around the end of this month, and this will also be the first time that the north -south main tower will be held.

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 main line is constructed according to urban expressway standards, two -way six -lane lane, and 80 kilometers speed is designed. The project is expected to be opened to traffic in 2024. It will alleviate the Jiangjiang traffic bottleneck after opening to traffic, which is of great significance to promote the integrated development of Ningzhen Yang. Among them, the main bridge of the river crossing is the overall steel box beam suspension bridge with a single -span of 1760 meters. It is currently the second largest span suspension bridge in China, and it ranks among the same type of bridge in the world.

The reporter learned that after the guidance rides completed the river, the series of processes of intermediate cables, traction cables, and cat roads will be carried out in the future. In the end, the cat road is set up to ensure the creation of the main cable through the river.

Longtan Yangtze River Bridge:

The "mobile factory" is built at a high altitude, and the Dragon Ball of the Bridge is October.

If you continue to move across the river along the Xianxin Road, about 20 kilometers upstream, another Yangtze River Bridge is undergoing the second floor of the southern tower. The main tower of the river crossing channel, known as the Longtan Yangtze River Bridge, also exceeded 200 meters. Two tower cranes next to the South Tower are moving long arms to implement air operations.

According to reports, in the construction of the South Tower, the integrated intelligent tower building machine for factory construction was nicknamed the "mobile factory" by the workers. This is a fully enclosed spatial frame structure platform with a height of 22.8 meters high, 2.8 meters wide, and about 280 tons weighing about 280 tons. The four groups are connected into a whole, and the ring construction platform is formed through the telescopic platform between the frame, which is divided into eight floors up and down. "Unlike the traditional hydraulic mold climbing group climbing, the structure of the tower building machine is stable, and the overall movement is achieved through the built-in device when climbing. The climbing speed can reach 5-10 meters per hour. The overall stability of the overall stability through the wind anti -air device between the frame and the template, even if it works at a high altitude of 100 meters, it is still as flat as the ground. " The promotion and application of new technologies, new processes, and new equipment "has laid a solid foundation for high -quality construction of Longtan Yangtze River Bridge.

Unlike the previous bridge across the river, the Longtan Yangtze River Bridge also carried out artistic creation on the bridge tower of the North and South Tower. With the generous beams, two hemispherical balls are poured on the bridge tower and named "two dragon drama beads", because the designer will cross the river, the main crossing 1560 meter steel box beam, The suspension bridge imagined to become a crossed Jianglong, hoping to leave it to the residents not only a crossing bridge.

After the completion of the Longtan Yangtze River Bridge, the rapid connection channel between Nanjing and Yizheng and even Yancheng will be achieved. The installation of the pilot cable is expected to be arranged within this year.

Changtai Yangtze River Bridge:

There is a person on the assembly line, and the North Tower sprints 100 meters high

On the wide river surface, several tower columns with "space diamond type" are standing above the Chengtai in the river. A "steel forest" composed of more than 60 tons, 6 meters high, and thousands of reinforced bars is being composed of thousands of steel bars. The world's first 10,000 -ton rice -class W12000 tower was lifted, and it fell steadily on the limb of the main tower. The workers at the scene saw the main tower of the Changtai Yangtze River Bridge, with the help of this big guy, and made a record of 100 meters high.

The main channel of the Changtai Yangtze River Bridge adopts the main 1176 meter cable -catch bridge, which is the world's largest span public iron dual -use cable bridge. The main tower design is as high as 352 meters, which is currently the highest bridge tower under construction in the world. The cross -river bridge is divided into two floors. It is the first highway, intercity railway, and first -class highway on the Yangtze River. "The steel block of the tower just hangs the tower is the steel bars." Wang Hui, the executive deputy manager of the Changtai project of the China Communications Second Airlines Bureau, said that the construction of the traditional bridge tower is generally required to be at high altitude and tie the steel bars one by one. After the process of making the steel bar in the bridge, the overall lifting of the tower was lifted, and the high -altitude operator of the steel bars of the northern tower of the Changtai Yangtze River Bridge decreased by more than 60%. It not only reduces the safety risk of construction, but also improves the improvement of construction speed and engineering quality. In the steel factory not far from the bridge construction site, all kinds of robotic arms are busy on the assembly line, some are bending reinforced bars, some are welding reinforced bars, and some are transshipment regulators ... Intelligent processing of unit parts, the automation molding of the sheet, and the mechanization of the block of the block, the intelligent manufacturing automation production line of the steel part of the block is the guarantee of the Changtai Yangtze River Bridge.

It is reported that the Changtai Yangtze River Bridge is expected to be opened to traffic in the first half of 2025. After completion, it will promote the "Xichangtai" city group to cross the river with three types of transportation methods of "highways, ordinary highways, and railways". Development provides strong transportation support, adding a world -class "landscape" to the 800 -mile Yangtze River in Jiangsu section.

Correspondent Chen Jialun Wang Hao Zhou Weiqing Zhao Zhenyu

Nanjing Morning Post/Love Nanjing Reporter Chen Yan

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