It is expected that the station will carry out excavation of foundation pit soil in May this year.
“The first phase of Line 21 has entered the comprehensive construction phase since June last year.
This process requires high construction accuracy and is difficult to construct.
Local communication: interactive zone reply 1: primary and secondary school district section table reply 6: Waigaoqiao Senlan 2022 pre-sale reply 2: Zhuqiao traffic reply 7: Zhuqiao citizen center reply 3: Zhuqiao development reply 8: “Wenju Road Station” added to Line 21 reply 4: Shanghai East Railway Station approximate appearance reply 9: Shanghai East Railway Station different design reply 5: neighborhood committee (village) Contact reply 10:96 The square is expanded to Chuansha Reply 12: Zhuqiao Core 1 Commercial Land Listing Reply 13: Chuansha Master Plan 2035 Reply 14: Zhuqiao should have a municipal commercial center Reply 11: Zhuqiao District of Jiuyuan is about to “break the ground”, has completed all piling, and is expected to be put into operation in 2024 → On the construction site at the intersection of Dongjing Road and Langu Road, large excavators and crawler cranes are rumbling, The workers either welded the reinforcement cage on the side, or operated the machine to excavate the soil and carry out the construction of the underground continuous wall.
Up to now, eight stations, including Dongjing Road Station, Pudong Football Stadium Station, Junmin Road Station, Yanggao North Road Station, Guanglan Road Station, have entered the construction phase.” Xu Jianbo, the manager of the engineering department of the Project Management Branch of Shentong Metro Construction Group Line 21, said that he is striving to achieve the construction of all the remaining stations within this year, including Pudong Football Stadium Station, Guanglan Road Station Three stations, including Junmin Road Station, were capped and the shield was driven 1.5 kilometers.
It passes through Chuansha New Town, Kangqiao Town, Zhangjiang Town, Jinqiao Town, and Gaoxing Town, connecting the three functional areas of International Tourism Resort, Zhangjiang Science City, and Jinqiao Export Processing Zone, and the two main and sub-centers of Zhangjiang Sub-center and Jinqiao Sub-center.
The total length of the line is about 28 kilometers, all of which are underground lines, with a total of 18 stations.
This is the construction site of Dongjing Road Station, Phase I of Line 21.
For example, it takes about 40 minutes for passengers to take the Line 2 train from Guanglan Road Station to Pudong Transport Hub.
One of the highlights of the first phase of Line 21 is the first all-underground subway line in Shanghai that adopts the combination of fast and slow trains, that is, two trains are running at the same time, one is the slow train that stops at the station, and the other is the fast train that jumps at the station.
If you take the express train of Line 21, the time will be shortened to more than 20 minutes.
There are also some new processes and technologies that are being applied in the first phase of Line 21.
For example, unlike the bolt connection of conventional tunnel segments, the segment assembly of Phase I tunnel of Line 21 uses the wisdom of the ancestors, uses the traditional Chinese “mortise and tenon” technology for reference, and applies the staggered joint assembly technology of socket segments.
The first phase of Line 21, located in the Pudong New Area, starts from Liuchen Road Station on the east side of Shanghai International Tourism Resort, and ends at Dongjing Road Station of Pudong Gaoxing.
“The slightest deviation from the assembly process is likely to cause the longitudinal connector to be unable to be inserted in place and the installation process is irreversible.” The project management branch said that it will study the detailed scheme and strengthen the on-site control, especially the training of shield machine drivers and assembly machine operators, so as to achieve the “perfect fit” of segment assembly.
“The first phase of Line 21 will extend from the east to the Pudong comprehensive transportation hub, and the new combined operation mode will better meet the diverse needs of citizens for commuting and fast travel.” Sun Jianjun, the design director of Line 21 of Shanghai Tunnel Engineering Rail Transit Design and Research Institute, told reporters that the stops of fast trains are less than half of the whole line, and at the design speed of 100km/h, the efficiency of citizens’ travel will be greatly improved.
In particular, it plays an important role in promoting the coordinated development of the three functional areas in Pudong New Area, supporting the function of the two main cities and sub-centers, and promoting Shanghai to build a scientific and technological innovation center with global influence..
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“The socket and spigot segment technology improves the assembly accuracy and roundness of segments, as well as the quality of formed tunnels, and greatly reduces the construction and later operation costs.” Xu Jianbo introduced that it was first tested in the first phase of Line 18, and then expanded its application in the second phase of Line 18, the west extension of Line 13 and other lines.
Considering the buried depth of the line, environmental conditions and other factors, the utilization rate of Line 21 Phase I reached 30%.
It is understood that the first phase of Line 21 will provide better public transport facilities for residents along the line, promote the development of key areas, and improve the efficiency and quality of travel along the line.
