For some high-speed rail main passages or lines with long mileage and some inter-provincial high-speed railways, most of them will be built in sections, and at the same time, a small number of high-speed rail lines in the province will also adopt this sectional construction method for various reasons.
Of course, there are good and bad ways in this way, the good side is that it will not affect the start of the section with mature construction conditions because of other sections, so that the early start of construction along the line can enjoy the convenience of high-speed rail as soon as possible, and the bad side is that once a section can not be started as planned, the whole line through or channel benefits can not be realized.
The 6 high-speed railways to be introduced in this article are currently only a section of the whole line that has not started, and if the last section can be started as soon as possible, then the entire high-speed rail will be perfect.
Longlong high-speed rail
Since the section from Wuping to Meizhou has not yet started, the entire Longlong high-speed railway will need to wait for several years before it can play the function of connecting the whole line. The high-speed railway is being promoted in three sections, of which the Longyan to Wuping section has been completed, and the Longchuan to Meizhou section has realized the whole line of catenary power transmission, which is about to be jointly commissioned and tested, and is planned to be completed within the year.
The positioning of the Longlong high-speed railway is a high-speed railway regional connection line, and it is still an important part of the Hangzhou-Guangzhou high-speed railway. If the Wuping-Meizhou section can start construction as soon as possible, it can form an inland high-speed railway corridor between Fujian and Guangdong provinces. Fortunately, the start of construction of the Wuping to Meizhou section is not far away, because the feasibility study of the project has been approved, and the preliminary design stage has also been carried out to the preliminary design review and review, and the preliminary design approval is being promoted, and it is likely to start construction within the year.
Lanzhang 34 line high-speed railway
Lanzhang 34 line high-speed railway is also built in sections, because the remaining Wuwei to Zhangye section has not yet started, so the completed Zhongchuan Airport to Wuwei section will also temporarily become a "broken road", so the upcoming Wuwei to Zhangye section is very important to open up the high-speed rail Lanzhang high-speed railway. The section from Zhongchuan Airport to Wuwei under construction has passed the preliminary acceptance and will be opened soon.
The positioning of the Lanzhang 34 high-speed railway is also a high-speed rail regional connection line, which can form the second high-speed rail channel from Lanzhou to Xinjiang after the Lanxin high-speed railway after the completion of the whole line. At present, the section from Wuwei to Zhangye has obtained the feasibility study approval this month, and the preliminary design and construction drawing design related work has already been carried out simultaneously, and it is planned to start construction within the year, so that the day when the Lanzhang 34 high-speed rail line will be completed is just around the corner.
Hesu (new) high-speed rail
The high-speed railway from Hefei to Suqian (Xinyi) needs to be opened up from Suqian to Sixian. For this high-speed railway, it was mentioned that Hefei to Xinyi was mentioned in the past, but now it mainly refers to Hefei to Suqian, because the Xinyi to Suqian section has been included in the construction of the Weifang to Suqian section of the Beijing-Shanghai auxiliary channel.
In the Hefei-Suqian high-speed railway, the Hefei-Suqian section is already under construction and is planned to be completed in 2025, but because the Sixian-Suqian section has not started, Hefei wants to continue to the north through the Hesu high-speed railway. However, at present, the section from Sixian to Suqian has been included in the high-speed rail project to be started in the mainland this year, and the supplementary feasibility study has also passed the review. After making up the section from Sixian to Suqian, and with the help of the Weisu high-speed railway and Qingdao liaison line under construction, Hefei can open up the high-speed rail channel to Suqian, Xinyi, Qingdao and other places in the north.
Shanghai-Chongqing-Rong high-speed railway
The Shanghai-Chongqing-Rong high-speed railway, the main channel of the high-speed railway along the Yangtze River, is waiting for the start of the Yichang-Fuling (Changshou) section, because the Shanghai-Chongqing-Rong high-speed railway in the Shanghai-Chongqing high-speed railway, Hefei to Wuhan section, Wuhan to Yichang section, and Chongqing to Chengdu section are all under construction.
At present, the Yichang to Fuling (Changshou) section has been in the preliminary design approval stage, and the construction drawing review work of Chongqing and Hubei provinces and cities is also advancing, and it is planned to start construction within the year, that is to say, the Shanghai-Chongqing-Rong high-speed railway along the river channel is completing the last section, and working hard for the completion of the whole line.
Shenjia high-speed railway
The high-speed railway from Shenyang to Jiamusi in the northeast region is also waiting for the Mudun passenger special to open up the second vein of Rendu, and the entire Shenjia high-speed railway is a new fast track for the eastern railway of the three eastern provinces, and only the Mudanjiang to Dunhua section has not yet started. Because the Mudanjiang to Jiamusi section and Dunhua to Changbai Mountain section have been completed, while the Shenyang to Changbai Mountain section is under construction and is planned to be completed in 2025.
However, although the Mutun passenger train is planned to start construction in the "14th Five-Year Plan" railway plan, there has not been much substantial progress in the project in recent years, and it is expected that the construction will not start until the "15th Five-Year Plan" period.
Changjiang-Jiangxi high-speed railway
At present, the Xiamen-Chongqing channel is only short of the Changsha-Ganzhou Changjiang-Jiangxi high-speed railway, which not only leads to the entire Xiamen-Chongqing channel can not play the channel benefits of the main channel of the "eight vertical and eight horizontal" high-speed railway, but also affects the Changde to Yiyang to Changsha Changchang high-speed railway that has been opened can not be introduced into Changsha South Station, so that it can not be connected with the Beijing-Guangzhou high-speed railway, and it is inconvenient for passengers from Changde and Yiyang to go south and north.
In order to solve this problem, Hunan has also planned a direct line between Changyichang and Wuhan-Guangzhou high-speed railway, that is, with the help of Changzhu-Zhuhai intercity railway + new Zhaoshan liaison line to connect the two high-speed railways, but has been required to suspend the implementation. Therefore, everything can only wait for the start of the Changjiang-Jiangxi high-speed railway. However, although the Changjiang-Jiangxi high-speed railway is planned to start construction this year, it remains to be seen whether it can start construction as planned this year due to the uncertainty of the EIA approval.
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.) ）