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Nanjing ranks first in the province


The blue book “Jiangsu Underground Space Development Report 2023” was released, and Nanjing ranked first in the province in a number of indicators.

According to the “Nanjing 14th Five-Year Plan” underground space development and utilization Plan “, the city will add 4 million square meters of underground space development zone capacity every year. At present, the underground space of the city is about 80 million square meters, which is the first in the province.

The share rate of rail transit is 65.5%

According to the blue book, among the cities in Jiangsu province that have opened rail transit, the public transport sharing rate of Nanjing metro has reached 65.5 percent, ranking first. //

Metro Line 7 is the first subway line in Nanjing to adopt fully automated driverless technology, starting from Xishanqiao station to Xianxin Road station, with a total of 27 stations. The northern section (Shogunu West Road station to Senshin Road Station) has been put into operation, the southern section (Nishishinbashi Station to Ontien Street station) has been put into operation at the initial stage, and the middle section has completed all the envelope and main structure, and the auxiliary structure is under construction.

At present, 11 subway lines in Nanjing are jointly built. Among them, the construction of 8 lines, respectively, Line 3 phase, Line 4 phase, Line 5, Line 6, Line 7 middle, Line 9 phase I, Line 10 phase II and Line 11 phase I, continue to encrypt the urban rail transit network; There are 3 urban lines, namely Ningma Line, Ningchu Line and Ningyang Line, to speed up the construction of “urban circle on the track”.

Tunnel construction in the province accounted for 33%

According to the blue book, a total of 161 tunnels were completed and opened to traffic in 13 cities with a total length of 198.85 kilometers, of which Nanjing accounted for 33%, ranking first in the province.

Jianning West Road crossing starts at the intersection of Xingpu Road and Jiangbei Avenue in Jiangbei New District in the north, crosses the Jinpu Railway along the east side of Xingpu Road in the south, crosses the Yangtze River to the south bank in the form of shield tunnel, and ends in front of Jinchuan West Road along the current Jianning West Road. The route is 6.8 km long.

As one of the most difficult projects in the construction of the tunnel across the Yangtze River in China, the shield tunnel on Jianning West Road is driven from north to south by two mud-water balanced shield machines. At present, the project has achieved the tunnel shield double line through, the main line of the river crossing is planned to be completed and opened to traffic in 2025.

Integrated pipeline corridor built 113 kilometers

According to the blue book, 321.92 kilometers of underground integrated pipe corridors have been built in Jiangsu Province, and the largest is Nanjing, which has built 102.8 kilometers. At present, the city continues to promote the orderly construction of comprehensive pipe corridors, and has built about 113 kilometers of comprehensive pipe corridors, ranking first in the province.

Jiangbei New Area phase I integrated pipe corridor

Yanzi section of the integrated corridor from Shennong Road in the south, to Jixiang Street in the north, to the expressway around the city in the east, a total length of 2300 meters, is an important part of the “two rings and six shots” trunk corridor system, Jiangnan ring trunk corridor. At present, the first phase of the project has entered the stage of laying high-pressure cable lines, with a total length of 1180 meters, which is the largest circular pipe jacking project in the country at this stage.

Urban underground space is an important growth pole for future urban development. Nanjing will rationally develop and utilize urban underground space, coordinate the layout of above-ground and underground disaster prevention space, improve the city’s anti-risk ability, and constantly promote the construction of high-quality “resilient city“.

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