The construction area is located in a deep overburden, special rock and soil layer, and is a river alluvial landform.
The water area where the water flow is rapid, the navigation environment is complex, and the construction of steel casings is difficult.” Zhang Guoyue, the technical director of the 4 # pier of Chongqi Highway and Railway Bridge of China Railway Bridge Bureau, told the reporter that in order to ensure the smooth construction of the first permanent steel casing of the bridge, Shanghai Chongming Maritime The maritime department of Nantong, Jiangsu Province, has conducted on-site guidance and disclosure for many times.
The bridge deck is a two-lane high-speed railway+two-lane intercity+6-lane first-class highway layout.
After the completion of the project, it is of great significance to promote cross-river integration, promote the integrated development of the Yangtze River Delta and high-quality development of the Yangtze River Economic Belt, build a comprehensive three-dimensional transport corridor of the Yangtze River Economic Belt, improve the transport capacity and service quality of the corridor, and promote the coordinated development of regional economy and society.
With a total length of 4.09 kilometers, the bridge spans the northern branch of the Yangtze River and is the main connecting channel between Qidong, Jiangsu and Chongming, Shanghai.
At about 8:00 am on the 13th, the world’s largest span ballastless track cable-stayed bridge for both highway and railway under construction undertaken by China Railway Bridge Bureau – Shanghai-Chongqing-Chengdu High-speed Railway Chongqing-Qidong Yangtze River Bridge on the north bank of Qidong River surface pile driver “Haili” 801 started operation with the cooperation of several escort vessels, one 51.4m long The first steel casing of the 4 # pier of the main bridge with a diameter of 2.8 meters and a weight of 78.6 tons slowly “sank” into the bottom of the river, marking that the Chongqi Highway and Railway Yangtze River Bridge officially entered the main construction stage.
The Shanghai-Nanjing-Hefei section of the newly-built Shanghai-Chongqing-Chengdu high-speed railway is an important part of the high-speed railway corridor along the Yangtze River of the national “eight vertical and eight horizontal” high-speed railway network, and the Chongqing-Qi’an Highway and Yangtze River Bridge is the key project of the Shanghai-Chongqing-Chengdu high-speed railway (Shanghai-Nanjing section) from Qidong, Jiangsu to Chongming, Shanghai.
“A total of 76 steel casings were constructed for the bored piles of the main tower foundation of the 4 # pier at the east side of the bridge.
It is a double-tower double-cable plane steel truss composite girder cable-stayed bridge with a main span of 400 meters.
The Chongqi Highway and Railway Yangtze River Bridge, as the world’s largest span dual-use ballastless track cable-stayed bridge under construction, is the key control project of the whole line of Shanghai-Chongqing-Chengdu high-speed railway.
Its structure is a dual-use highway and railway bridge with double-layer layout.
The project department of China Railway Bridge Bureau has made advanced planning, carefully organized, formulated relevant emergency plans for difficulties, and conducted comprehensive inspection and hidden trouble troubleshooting for the mobilized equipment.
What do you think of this? Spread! Remember to discuss with you! Source: Nantong WeChat Service Comprehensive Nantong Newspaper All-media Reporter Peng Junjun [Disclaimer]
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The project construction responds to the needs of the “the Belt and Road” and the construction of the Yangtze River Economic Belt.
