In addition to the existing railway expansion and renovation projects, intercity rail transit in metropolitan areas, special railway lines and railway projects that have not yet started construction, the mainland is currently building key new railway projects with a mileage of nearly 18,000 kilometers, involving nearly 100 lines. Due to the different start times, the progress of these railways will naturally vary, and the planned opening time will also be different.
The purpose of everyone's concern about the progress of the railways under construction is more to know how far they are from the completion and opening to traffic, although some of them are still many years away, but the goal of opening to traffic is gradually achieved in this little attention. Since most of the railways currently under construction in the mainland are high-speed rail lines, the following will focus on the latest situation of 18 of the high-speed railways under construction, including the remaining 7 high-speed rail lines planned to be opened this year.
Set Dayuan high-speed railway
Let's talk about the remaining 7 high-speed railways that are expected to be ready for opening within the year. Among them, the Dayuan high-speed railway has started joint commissioning and joint testing, and it usually takes 2-3 months to jointly debug and test the operation, so from the current situation, the high-speed railway is still expected to have the conditions for opening within the year.
The Shanghai-Suzhou-Lake high-speed railway, the Nanyu high-speed railway (the Nanyu section of the Nanzhu high-speed railway), the Jingjing high-speed railway, and the Huaixing intercity Langxing section (including the second phase of the Jinxing intercity railway) are currently in the stage of joint commissioning and joint testing; The Weiyan high-speed railway is in the trial operation stage; Xuanji high-speed rail has passed the operational safety assessment; Judging from the latest construction progress of these high-speed railways, it is a matter of time before they are opened within the year.
In addition to these seven high-speed railways to be completed and opened to traffic within the year, some high-speed railways under construction planned to be completed in 2025 and beyond are also making new progress. The railway construction process includes the construction of the pre-station project and the post-station engineering, which takes the most time, the pre-station engineering includes the roadbed, bridge and culvert, tunnel, station yard, track laying, etc., and the post-station engineering mainly includes the station house, the four electric and other projects. After the completion of these projects, they will enter the acceptance stage, including static acceptance, dynamic acceptance, preliminary acceptance, and safety assessment, and the acceptance generally takes several months, so you can compare what stage they are currently in.
Shenbai high-speed railway
The Liaoning section of the Shenbai high-speed railway, which is planned to be completed in 2025, has been completed, and is about to enter the ballastless track construction stage, while the Jilin section has taken the lead in laying tracks.
The West 10 high-speed railway, which is planned to be opened to traffic in 2026, has entered the stage of simultaneous construction of the project in front of the station and the project behind the station, and the Shaanxi section plans to complete the erection of all box girders by the end of the year, and the "four electricity" projects behind the station have also fully entered the construction stage.
The northern section of the Xiongxin high-speed railway, which is planned to be completed and opened to traffic in 2027, has been opened to the whole line of the girder and track laying channel, and the high-speed rail is under construction in addition to the project in front of the station, and the station building and other projects in the project behind the station are also under construction.
The Chengdawan high-speed railway, which is also planned to be completed in 2027, has already entered the bridge erection stage; In terms of tunnels, the exit of the Huayingshan Tunnel, a control project of the whole line, has been broken through, and it is planned that the tunnel will be completed early next year. In addition, the station building project is also starting one after another.
Chaoma Intercity Railway
At present, the whole line of the Chaoma intercity railway tunnel project has been completed, which provides favorable conditions for the later girder erection and track construction. The main line of the railway has a total length of 61 kilometers and a design speed of 350 kilometers per hour, and is scheduled to be completed in 2026.
The Shaoyong high-speed railway, which started at the end of last year, has been poured the first box girder of the whole line, and the tunnel project is also advancing, and the "four electricity" projects have also started construction bidding, and it is planned to officially start construction in November this year, and the whole line is planned to be completed and opened to traffic in 2027.
The Xikang high-speed railway, which is planned to be completed in 2026, has officially kicked off the "four electricity" project behind the station, and the left line from the No. 3 inclined shaft to the exit section of the Qinling Taixingshan Tunnel has been broken through in front of the station. The new main line of the high-speed railway has a total length of about 171 kilometers and a design speed of 350 kilometers per hour, and it will take less than one hour to travel from Xi'an to Ankang after completion.
West extension of high-speed rail
The West Extension High-speed Railway, which is planned to be completed in 2025, has excavated more than 90% of the total tunnels along the entire line, and the project behind the station is currently under construction. The bridge project of the west extension of the high-speed rail connection line has also entered a new stage of girder construction.
At present, the Liangshan to Yuncheng section of the railway project Liangshan Station and Yuncheng Station Class II major points of the railway project have been completed, which provides construction conditions for the next step of demolishing the existing Liangshan and Yuncheng station related stations and station facilities, and lays the foundation for the new Xiongshang high-speed railway line and the follow-up construction of the new Liangshan and Yuncheng high-speed stations, and the whole line is expected to be completed in 2026.
The whole line of the Shenzhen-Jiangxi Railway, which is planned to be completed in 2028, has entered the stage of erecting beams, and has started the construction bidding of the four electric power and related projects, and the fourth electric project of the project is planned to officially start at the end of November, and the construction of Shenzhen Airport East Station has been started.
The Chongzuo-Pingxiang railway, which is planned to be completed in 2025, has fully launched the "four electricity" project, and the whole line foundation project, bridge project, and tunnel project are about to be completed, and the track-laying project is about to be rolled out.
This article was originally written by @RailwayNagguaries, welcome to pay attention, let us pay attention to the development of China's high-speed rail and other railway transportation! (The picture is from the Internet, if there is any infringement, please contact to delete.) ）