China News Service, Wuxi, December 28 (Reporter Sun Quan) On the 28th, the Changzhou-Wuxi section of the Suzhou-Wuxi-Changzhou South Expressway passed the acceptance inspection organized by the Jiangsu Transportation Engineering Construction Bureau.
The Changzhou-Wuxi section of the Suzhou-Wuxi-Changzhou South Expressway is located in southern Jiangsu, crossing the Taihu Lake and constructing the second expressway between Shanghai and Nanjing. It is the “fifteen shots” of the “15 shots, six vertical and ten horizontal” expressways in Jiangsu Province. An important part, it is also the main road of intercity traffic in the Yangtze River Delta.
The interior view of Taihu Lake Tunnel.
Sun Quanshe
The completion of the project will connect Suzhou, Wuxi, and Changzhou in series, effectively alleviate the current saturation of traffic on the Shanghai-Nanjing Expressway, and further promote the integration of transportation, tourism, and industry in the Yangtze River Delta. , It is of great significance to promote the integration of the Yangtze River Delta and serve the modernization of the new Jiangsu "Strong, Prosperous, Beautiful, and High".
The Changzhou-Wuxi section of the Suzhou-Wuxi-Changzhou South Expressway starts from Qianhuang Town, Changzhou, crosses the Xilicao River and Xinchang Railway, crosses the Xiyi Expressway, passes through the Yaoxian Mountain and enters the Wuxi Mashan area, and crosses the Meiliang Lake of Taihu Lake. It ends at Nanquan and connects to Wuxi Taihu Lake Expressway, with a total length of 43.90 kilometers (22.43 kilometers in Wuxi section and 21.47 kilometers in Changzhou section). The entire line adopts two-way six-lane expressway standard construction.
There are 7 interchanges across the line, 2 road tunnels in Taihu Lake and Yaoxian Mountain, 1 Taihu Bay service area, 2 clearing rescue sites, and 4 interchange ramp toll stations.
Among them, the 10.79-kilometer Taihu Tunnel is currently the longest underwater tunnel in China. The cross-section adopts the form of a folded arch with two holes and one tube gallery. The clear width of the driving holes on both sides is 17.45 meters, the clear height is 7.25 meters, and the tube gallery is in the middle.
Overlooking Nanquan Toll Station.
Photo by Cai Chaoyang
The Changzhou-Wuxi section of the Suzhou-Wuxi-Changzhou South Expressway has a large scale of construction, difficult construction techniques, high safety risks, and strict environmental protection requirements. The engineering construction is extremely challenging.
During the construction process, the Taihu Tunnel was constructed section by section using a cofferdam in the water. Steel plate (pipe) piles were laid on the cofferdam with a total length of 42,000 meters. The total volume of concrete poured reached more than 2 million cubic meters. The excavation of the tunnel foundation pit reached more than 10 million. square.
With the goal of "safety, intelligence, green, and comfort", the builders combine 5G technology, Beidou precise positioning, fiber detection, multi-target radar tracking, spectral detection, big data analysis and other technologies to wake up the system through visual fatigue and traffic incident detection And early warning system, intelligent stepless dimming lighting system and tunnel ventilation operation energy-saving system, etc., promote the deep integration of modern high-tech and highway construction, and build the Taihu Tunnel into an intelligent tunnel.
Nanquan Hub.
Photo by Cai Chaoyang
The Changzhou-Wuxi section of the Suzhou-Wuxi-Changzhou South Expressway passes through many environmentally sensitive areas, among which the environmental protection requirements of the Taihu Lake are particularly strict.
Therefore, during the project construction process, the builders made every effort to build the beautiful Taihu Lake project, established a long-term environmental monitoring mechanism throughout the entire construction period, built a fully enclosed concrete supply center, steel bar processing and distribution center, and achieved "zero discharge" of production dust and solid waste. ; Carry out cyanobacteria salvage, proliferation and release regularly, implement lake compensation, and promote the restoration of the ecological environment of Taihu Lake; comprehensively introduce green energy such as solar energy and air energy, implement green treatment of waste concrete, and realize resource recycling.
In addition, the builders also combined the Taihu Lake's sky and water with the endless outline of the landscape, and designed and brightened the air outlets on both sides of the Taihu Tunnel as "jasper snails" and "painting boat" wind pavilions under the condition of satisfying the use function. The wind pavilion is perfectly presented among the green trees and green waves, making it a beautiful scenery line in the waters of Taihu Lake.
It is reported that according to the plan, the opening ceremony of the Changzhou-Wuxi section of the Suzhou-Wuxi-Changzhou South Expressway will be held in the near future.
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