"I drive out often have to pass the old Ningwu Railway, the queue is also too long, have to wait for a few traffic lights to pass, I hope that the new line will be completed earlier." Car owner Li Mingqiang said.
"I send my child to the tutorial class to pass through the small line of the road, often a wait is ten minutes, was not enough time, too anxious." Auntie Zhang, who often needs to send her grandson to school, said.
A Ningwu Railway
Through half of Nanjing
Affecting the travel and lives of countless residents
Ningwu Railway Expansion and Improvement Project
How it's going and when the old line will be relocated
It has touched the hearts of countless Nanjing people
In 2024, accelerating the construction of Ningwu Railway Expansion and Reconstruction Project was included in the list of Nanjing Transportation and Livelihood Affairs. How is the progress so far?
Recently, the Nanjing South Shield Tunnel section, a key node of the project, has successfully crossed the first source of risk, and construction is progressing steadily.
Shield Machine "Ningwu"Successfully traversing the first source of risk
in the last few days
In the Nanjing South Tunnel section of the expansion and reconstruction project
The ground is lined with machinery.
But you can barely hear the construction.
subterranean
Dozens of workers are busy operating
"Underground dragon" "Ningwu No." shield machine roaring forward
Nanjing South Tunnel
Ningwu Railway Expansion and Improvement Project
Controlling project of the whole line
Approximately 14.4 kilometers in length
Single-bore, single-lane tunnel
Design speed 120 kilometers per hour
The shield section is about 2.4 kilometers long.
Construction with one earth pressure balance shield
China Railway 14 Bureau Ningwu Railway Project Division 2 shield manager Zhang Fanjun introduced, August 12 this year, the tunnel shield section from the Yuhuatai District Meixiang Road work shaft, all the way down through the Nonghua River, Airport Expressway, Qinhuai New River, Hanfu Mountain Beijing-Shanghai high-speed rail existing tunnel, etc., up through the S1 subway line, long distance and S3 subway line parallel, and finally to the end of the established tunnel in Hanfu Mountain, Jiangning District.
"At present, the 'Ningwu No.' shield machine has bored to 136 rings, about 245 meters, successfully crossing the first source of risk - the Nonghua River channel." Zhang Fanjun explained, shield tunnel down through the Nonghua River channel process, the top is below the current river bottom elevation of 1.2 meters, and the new box culvert vertical minimum clearance of 0.5 meters. Risky and high control requirements in the process of tunneling down.
In order to avoid risks, the project team has repeatedly demonstrated the shield machine under the Nonghua River channel, and refined the safety and technical measures as well as emergency safeguard measures. During the construction, the project team escorted the shield machine on site, conducted 24-hour patrols around the risk sources, measured the ground settlement, slag volume data and synchronized grouting volume in real time, and strictly controlled the parameters and attitude of the shield machine in the process of digging, which ensured that the shield machine smoothly crossed the Nonghua River channel.
"It is expected to be bored to 400 rings before the Spring Festival, and the end of October next year is expected to usher in the critical node of tunneling through the shield section." Zhang Fanjun said.
Here comes the progress of 5 railroad projects under construction
Five railroad projects are under construction in Nanjing this year, as followsNanjing North Railway Station, North Yanjiang High-speed Railway, Ninghuai Intercity Railway, Nanjing Shangyuanmen Railway Crossing and Ningwu Railway Expansion and Renovation Project.The total mileage under construction totals about 205 kilometers.
In addition to the Ningwu Railway Expansion and Reconstruction Project, Nanjing North Station also has good news recently. on November 18th, the first engineering piles of Nanjing North Station Hub Project were drilled, marking the construction of Nanjing North Station entering a substantial construction stage. North Yanjiang High Speed Railway, Ninghuai Intercity Railway is promoting the entire line of substructure and special hole span, control node project construction. The construction of the first section of Nanjing Shangyuanmen Railway River Crossing has commenced.
In recent years, Nanjing has accelerated the implementation of the Nanjing Railway Hub Master Plan, and has built nine national railways such as the Beijing-Shanghai high-speed railway, the Shanghai-Nanjing intercity railroad and other main lines or intercity railroads, as well as two mega passenger stations, the Nanjing Station and the Nanjing South Station, which basically form the"One ring, two spans, nine lines."The railroad network pattern of Shanghai-Nanjing-Hangzhou is about 510 kilometers, of which 268 kilometers are high-speed railroads, and Shanghai-Nanjing-Hangzhou has formed the "one hour high-speed railway traffic circle".
In the future, Nanjing plans to form"Two rings, four spans, 15 lines, four major passenger stations, four major freight yards, one main and one auxiliary grouping station"The overall pattern of the state-level mega-ring railroad hub, with a total planning mileage of more than 840 kilometers, including about 600 kilometers of high-speed railroads, forms a "meter" shaped high-speed railroad network directly connecting to the country, realizing a 1.5-hour high-speed railway access between Nanjing and the cities within the province, and further highlighting the function of the radiation center of the railroad hub.
