Located on the Qiqi River at the junction of Liupanshui City and Qianxinan Prefecture, the Naqing Expressway Qiqi River Bridge that is about to close the dragon is like Changhong Lying Wave, which is very spectacular.
Renderings of the Qiqi River Bridge (courtesy of Naqing Expressway)
On March 20, a reporter from Wumeng Xinbao saw at the bridge construction site that a large trailer was transporting the steel truss girder parts used in the bridge to the job site to wait for hoisting. With the orderly operation of machinery and workers, the bridge is accelerating towards Helong.
"According to the current progress, the main bridge of the Qiqi River Bridge is expected to be closed in the middle of next month. Fu Hua, chief engineer of Guizhou Highway Group's Naqing 15 standard project, told reporters.
As one of the control projects of Naqing Expressway, the overall image progress of the Qiqi River Bridge has reached 80%, the lower structure of the bridge has been completed, and the steel girder of the upper main bridge is being assembled and hoisted. A total of 73 steel girder sections have been designed for the main bridge of the Qiqijiang Bridge, of which 65 sections have been assembled and 63 sections have been hoisted. Fu Hua said: "The construction of the bridge is difficult to organize, difficult to control, high precision requirements, high safety risks, during the construction process, workers overcome difficulties again and again, overcome one difficulty after another, and advance according to the requirements with quality and quantity." ”
The bridge is located at the junction of two cities (prefectures) and three counties (districts) in Changliu Township, Qinglong County, Qianxinan Prefecture, Longyin Town, Pu'an County, and Houchang Township, Shuicheng District, Liupanshui City. With a total length of 1,849 meters and a main span of 1,080 meters, the bridge is a two-tower single-span simply supported steel truss suspension bridge. The bridge adopts high-strength galvanized aluminum rare earth alloy sealed wire rope sling, canceling the traditional parallel steel wire sling, which is the first time in the world to be adopted in the bridge industry, filling the gap in this field. As a control project of Naqing Expressway from north to south, the Qiqi River Bridge is built across the river, divided into Nayong Bank and Qinglong Bank, both sides of the gate type reinforced concrete pylon, gravity anchorage, the main tower height is 248.1 meters and 174.1 meters respectively.
The main line of Naqing Expressway starts from Zhaile Town, Nayong County, intersects with the Zhijin to Nayong section of Xiarong Expressway (set up to interchange with Sailo hub), passes through Zhangjiawan, Jonchang, Suojia, Yanjiao, Changliu, Zhongying, Huagong, Baisha, Khmer, and ends at Pu'an Tea Factory, Jiangxipo Town, Pu'an County, and accepts Xing Expressway Qinglong.
To the Xingyi section, it intersects with the Shanghai-Kunming Expressway Zhenning to Shengjing section (with Xinzhai River hub interchange). The total length of the route is 162.167 kilometers, of which 40 kilometers are co-linear with the Ampan Expressway under construction, which is a two-way six-lane roadbed with a roadbed width of 33.5 meters, and the rest is a two-way four-lane roadbed with a roadbed width of 26 meters. The estimated total investment of the project is 38 billion yuan, and 89.42% has been completed.
"Up to now, the overall image progress of Naqing Expressway has reached 92%, including 99.5% of the roadbed image progress, 97% of the bridge image progress, 98% of the tunnel image progress, 28% of the pavement image progress, and 30% of the ancillary project image progress. The most important control project of the whole line, the Liuzhi Bridge, has completed 80% of the overall image progress and is expected to be completed in June 2025. At that time, the whole line of Naqing Expressway will be ready for traffic. Mr. Liu Yunheng of Guizhou Naqing Expressway Co., Ltd. said.
Naqing Expressway is the national highway horizontal line G76 (Xiamen to Chengdu) contact line, but also an important part of Nayong to Xingyi Expressway (G7612), connecting Hangrui, Xiarong and Shanghai-Kunming and other national highway main lines, its construction is conducive to Guizhou Province 6 longitudinal channel through, not only strengthen the north-south traffic links in the western part of Guizhou Province, the formation of Guizhou and the adjacent Sichuan, Guangxi connection of the fast channel, but also Sichuan, Chongqing and other places through Guizhou to Yunnan, Guangxi a fast channel.
Wumeng Xinbao reporter Shi Youye
Editor: Zhou Zhenming
First trial: Li Jun
Second trial: Zhao Ming
Third trial: Wu Na