Nanxi Yangtze River Bridge is one of the three major control projects in expressway, Yilu, and the first modern super-large suspension bridge in the upper reaches of the Yangtze River. Its main span (820 meters) and scale rank first in Sichuan Province, and it is known as "the first span in Sichuan".
work progress
The construction of expressway Nanxi Yangtze River Bridge in Yi-Lu-Yu is a controlled construction project in Yibin section of Yi-Lu-Yu expressway. Construction started on +0 1 in June 2008, and it is expected to be completed and opened to traffic by the end of 20 12, with an investment of 650 million yuan, with a total length of 1295.89 meters and a main bridge of 820 meters and a width of 24.5 meters. The design speed is 80km/h, and its north bridge head is located at Wangjiazui, jinji village, Luolong Town, nanxi district, on the north bank of the Yangtze River, and its south bridge head is located at the irrigation mouth at the junction of Jiangnan Town and Majia Town, nanxi district, on the south bank of the Yangtze River.
Along expressway, Lu Yi, it passes through Cuiping District, nanxi district, Changning County and Jiang 'an County, with a mileage of 6 1 km. From May 27th to June 22nd, the land requisition and demolition work in four districts and counties was completely completed, and the inventory and measurement work was carried out in an orderly manner, and 80% of the tasks were completed. 20 12,12 On June 3rd, it was learned from the construction headquarters of Nanxi Yangtze River Bridge that Nanxi Yangtze River Bridge has completed 90% of the total works, including 90% of the steel box girder on the deck and 85% of the T-beam on the north-south approach bridge. It is expected that the whole bridge will be completed in September and officially opened to traffic at the end of 10.
Expressway, Yi Lu, is an important section of Chengdu-Chongqing area of National expressway Network, located in the core area of the upper Yangtze River Economic Belt and Chengdu-Chongqing Economic Circle, and is an important inter-provincial highway trunk channel in Sichuan Province. The design speed of the highway is 80km/h, with four lanes in both directions, and the subgrade width is 24.5m.. ..
After the completion of Nanxi Yangtze River Bridge, it will be of great significance for nanxi district to "strive to build a new highland of county economy in southern Sichuan", accelerate the development and construction of economic and industrial belts along the Yangtze River, and actively integrate into Chengdu-Chongqing economic circle.
Construction started on June 8, 2008.
20 1 1 May, Nanxi Yangtze River Bridge began to carry out protective painting of main cables, ring welding of steel box girder on deck and other projects.
On February 2, 2065438, the last section of steel box girder was hoisted, which indicated that Nanxi Yangtze River Bridge was about to take shape.
On June 3, 20 12, 12, Nanxi Yangtze River Bridge completed 90% of the total works, including 90% of the steel box girder on the bridge deck and 85% of the T-beam on the north-south approach bridge.
On August 4, 20 12, the left approach bridge of Nanxi Yangtze River Bridge was completed, and the right approach bridge is expected to be erected in mid-August, when the bridge will be fully connected, and it is expected to be opened to traffic in June, 20 12.
design standards
The design standard of Nanxi Yangtze River Bridge is four-lane expressway Bridge, and the design safety level is Grade I. ..
The total length of the bridge is 1295.89 meters, the main span is 820 meters and the width is 24.5 meters.
The bridge is a twin-tower portal cable-stayed bridge with four lanes in both directions and a design speed of 80 kilometers per hour. At the same time, in order to facilitate the passage of people on both sides of the bridge, pedestrian walkways with the width of 1.5 meters are set on both sides of the bridge.
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