abstract
Anqing Yangtze River Highway Bridge is located in Anqing section of the Yangtze River, with a total length of 5985.66 meters and a main bridge of 1040 meters. 200 1 started construction and was completed and opened to traffic in 2004.
Anqing Yangtze River Highway Bridge was officially completed and opened to traffic in 2004. It is a key project in the Tenth Five-Year Plan with a total investment of 65.438+0.3438+0.74 billion yuan.
Anqing Yangtze River Highway Bridge is the 35th bridge on the Yangtze River, which is 96 kilometers away from Jiujiang Bridge 164 and Tongling Yangtze River Bridge. The whole bridge is designed according to the two-way four-lane and expressway standard, and the design speed is100 km/h.
Anqing Yangtze River Highway Bridge has become the intersection of Shanghai-Chengdu-expressway-Anhui Section, expressway, Jiang Yan and expressway, Donggang, and is an important part of the national expressway network. The opening of the bridge has opened a sea passage to the north, east and south of Anqing, a famous historical and cultural area, strengthened its economic ties with the Bohai Rim region, the Yangtze River Delta region, southeastern Fujian and the Pearl River Delta region, and opened up a new smooth road for the development of Anqing.
The construction of the bridge has created four national firsts: the shortest time from selecting the construction unit to launching the first steel cofferdam is only 22 days; It takes only 80 working days from launching the first steel cofferdam to sealing the bottom; The steel cofferdam has the highest accuracy (1/660), which is 6.6 times higher than the design specification. In the construction of similar bridges in China, the record of zero accidents in safety construction is the longest.
Anqing Yangtze River Highway Bridge has created a new record of the fastest hoisting speed of steel box girder in the history of Yangtze River Bridge construction. The main project of the bridge consists of viaduct, overpass, approach bridge, approach road and main bridge, with a total length of 5985.66 meters. The main bridge is a five-span continuous steel box cable-stayed bridge with twin towers and double cable planes, with a total length of1040m. The main span is 5 10 meter long, ranking seventh in China and 16 in the world. The main tower is inverted Y-shaped, with a height of 1.84m, a reinforced concrete structure, a clear bridge deck width of 26m and a minimum navigation clearance of 24m under the bridge. The whole bridge is built according to the standard of two-way four-lane expressway Bridge, taking into account the requirements of long-term six-lane operation.
background
"The river is noisy and the shore breaks thousands of feet." Like many cities along the Yangtze River, Anqing has a century-old dream of building a bridge.
As early as 19 12, Sun Yat-sen put forward the idea of building the Yangtze River Bridge in Anqing in the General Plan for the Founding of the People's Republic of China. 1958, after the Wuhan Yangtze River Bridge was completed and opened to traffic, the relevant state departments also had the idea of building a bridge in Anqing. 1984, Anqing Bridge Construction Plan was put forward again, and the project proposal was compiled for the first time.
1992, the former state planning commission decided to build three Yangtze River bridges in Anhui after investigating the infrastructure construction in the middle and lower reaches of the Yangtze River. Anqing immediately established the "Bridge Engineering Preparation Headquarters". However, due to financial problems, the bridge ran aground.
Anqing attaches so much importance to this bridge because of the long-term barrier. In the history of Anqing, ships gathered and commerce flourished. However, in the tide of reform and opening up in the second half of the 20th century, Anqing, which thrived on the river, began to highlight the contradiction of "blocked by the river" and increasingly became an "isolated city" living in Jiangbei and Wangjiang.
build
1995 and 1998, Anqing bridge construction headquarters reported the Yangtze river bridge project proposal to the central authorities twice. 199965438+February, the project proposal was approved. In July, 20001,the State Council officially approved the feasibility study report of this project. With the official approval of the feasibility report of Anqing Yangtze River Highway Bridge in July 20001year, the ancient city of Anqing played a new movement in the construction of Yangtze River Bridge. The bridge lasted for 3 years and was officially completed and opened to traffic on February 26th, 2004.
A century-long plan, quality-oriented. Bridge builders have conducted 100 demonstrations and tests for many times, and recruited "ace troops" for bridge construction, such as China Port No.2 Navigation Bureau, Hunan Luqiao, China Railway Baoqiao and Xi 'an Ark, with high standards and strict requirements to work together.
In winter, the wind is biting, and the temperature on the river is even lower. In summer, the heat is unbearable. In order to stand on the hot steel plate, welders have to put on thick labor protection shoes and spread thick wooden boards ... Across rivers, dams, lakes and roads, thousands of troops are fighting on a 6-kilometer-long front.
At the beginning of the bridge construction, Anqing municipal government issued a notice along the project, asking all sectors of society to fully support the bridge construction. 665438+ Wan 'an Qingren served the bridge construction in their respective posts. Chizhou city is also a green light for such a project that benefits people on both sides of the strait in many aspects such as land acquisition and demolition.
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