400 kilograms of pilot cables 45 minutes across the river Nanjing Xianxin Road across the river channel to achieve hand in hand on both sides of the strait

On the morning of the 29th, the construction of Nanjing Xianxin Road crossed the river channel to usher in major engineering nodes. At 10 o'clock in the morning, when a traction boat dragged the white Dinima rope with a length of 2000 meters, drove slowly from the south bank of the Yangtze River. The whole process of leaving the river to the 65 -meter height in the air and the north bank. This year's National Day is coming. Xianxin Road Crossing the Jiang Channel's pioneer Suo Suo successfully passed the river not only presents a gift for the motherland's birthday, but also means that the project is about to enter the key stages such as subsequent main cables and steel box beams.

At 9 o'clock in the morning, the reporter came to the construction trestle on the south bank of the Yangtze River early. At this time, the white Dinima rope was fixed on the tower bridge from the top of the south tower along the top of the south. Drag through Jiang. According to Zhang Guohao, the project manager of the Xianxin Road project of the China Communications Second Airlines Bureau of the project, don't look at this rope only 5-6 cm thickness, but you can withstand 5 tons of pulling force, and your own weight is very light. The total weight is only 400 kg. It is difficult to imagine that this rope is relying on this rope. The subsequent intermediate cables, traction cables, and cat road load bearing cables can pass through the river smoothly, and eventually provide the air channel for construction and equipment transportation to the main cable.

At that time, at 10 o'clock in the morning, accompanied by the sound of the traction boat, the white Dinima rope began to contact the river from the air, and the traction ship crossed the Yangtze River at a speed of 40 meters per minute. In order to ensure the successful leading the river, the Nanjing Maritime Department is also being closed for the Nanjing Yangtze River section of the Nanjing Yangtze River section. With the attention of everyone's attention, the traction boat successfully carried the northern shore after nearly half an hour of sailing, and connected to the steel wire rope head on the top of the North Tower. At this point, a pilot cable with a total length of 2000 meters successfully span the waters with a width of 1760 meters. With the cooperation of the rolling machine on the top of the north -north bank, it increases to a high altitude of more than 65 meters of the super rivers to meet the cleanliness requirements of navigation. Next, the project team will be based on the leading ride to carry out the traction system between the main tower and the anchor.

It is reported that the traction system is an important part of the upper structure construction, which is mainly used to set up cat roads and main cables. The construction of the traction system must first rely on the pilot cable to complete it. The first guide rivers are the most critical construction process for the upper structure of the bridge. Generally, it is constructed by ship pulling and drone racks. As the Xianxin Road crossing the river is located in the open waters of the Yangtze River, the environment is complex, the construction organization coordination is difficult, and the safety risks are high. The construction team is compared with the selection and expert demonstration. Essence Du Yajiang, director of the second bridge tunnel of the Nanjing Gong Construction Central Bridge, said that the first guide to cross the river and set up a prerequisite for the establishment of an air catwalk for the Xianxin Road, which is conducive to the construction of the upper structure of the main cable and the steel box beam stand. It laid a solid foundation for the completion of the project in 2024.

Xianxin Road across the Jiangdou channel is 13.17 kilometers in length. It is an important link connecting the main urban area of ​​Nanjing and the National Jiangbei New Area and Nanjing Economic and Technological Development Zone. Among them, the main bridge across the river is the overall steel box beam suspension bridge with a single -span 1760 meter.

Correspondent Qiu Caihua

Nanjing Morning Post/Love Nanjing Reporter Chen Yan

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