As the first two-way eight-lane high-speed corridor between Chengdu and Chongqing, the construction of the Nanchong section of the Chengdu-South Expressway expansion project is currently accelerating. According to the construction schedule, the Chengnan Expressway expansion project will accelerate the "four major projects" of roadbed, bridge, tunnel and pavement this year, laying the foundation for the completion and opening of the whole line to traffic in 2025.
The progress of the control project image exceeds the planned node
The Jialing River Bridge across Gaoping District and Jialing District is the longest main span bridge of the Chengnan Expressway Expansion Project, and it is also a key control project of the whole line. "The total length of the bridge is 2,309 meters, with a total of 21 sections, a height of 116.55 meters, and a height of about 40 floors. A construction person in charge at the site said that the project team used the steel pipe occlusal pile construction method to ensure the safety of the deep-water foundation construction, and the tower used the oblique climbing formwork process to successfully overcome the construction accuracy control problem caused by the unique shape of the cross-section. Now, with the capping of the main pier tower, it marks that the construction of the bridge has entered the main girder construction stage, laying the foundation for the realization of the Chengnan Expressway expansion project opened to traffic as scheduled.
According to the relevant person in charge of the Municipal Transportation Bureau, at present, the image progress of the Jialing River Bridge and Yongli Extra-long Tunnel of the Nanchong section of the Chengnan Expressway expansion project has exceeded the planned nodes, and the Shazigou Tunnel, Shengxing Tunnel and Maoershan Tunnel have been penetrated, and the first batch of scientific research and testing points at the ministerial level has been built 1.5 kilometers.
According to the plan, the approved route of the construction drawings of the Chengnan Expressway expansion project is 240.226 kilometers long, and the construction period is 3 years. The main line section of the project starts from the existing G42 Dongguan hub interchange on the east side of Gaoping District, and ends at the Luosiba hub interchange of Chengdu Ring Expressway, with a total length of 215.697 kilometers. At the same time, the construction of the Chengdu double line section into the city, starting from the second ring highway in Chengdu and ending at Longgang Road, Longtan Street, Chenghua District, Chengdu, with a total length of 24.529 kilometers. Among them, the total length of the Nanchong section is 47.4 kilometers, the new double line is 30.4 kilometers, and the two-way six-lane is expanded, and the original road is expanded by 17 kilometers, with two-way eight lanes, and the design speed is 100 kilometers per hour, and the existing road section is overhauled and renovated 27.7 kilometers. According to the relevant person in charge of Sichuan High Company of Shudao Group, the Chengnan Expressway Expansion Project, as the largest project of the expressway expansion project under construction in Sichuan Province, will become the first two-way eight-lane high-speed channel connecting the Chengdu-Chongqing Economic Circle after the expansion and transformation, which will further stimulate the economic development vitality of the Chengdu-Chongqing region and improve the road capacity and level between Chengdu and Chongqing.
Source | Nanchong Daily
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