Transportation
Inner Mongolia section ofJi-Dayuan high-speed railway startsconstruction bidding
Seetao 2021-08-09 16:15
  • The construction of this project will greatly optimize the traffic routes in Inner Mongolia
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August 6, 2021, "Announcement on the Pre-examination of the Qualifications of the Construction Bidding for the Construction of the Inner Mongolia Section of the New Jining-Jining-Jining-Jining-Jining-Datong-Yuanping Railway Inner Mongolia Section" and the "Announcement of the Pre-examination of the Construction Bidding for the Construction of the New Jining-Jining-Jining-Jining-Datong-Yuanping Railway Inner Mongolia Section of the Inner Mongolia Section" The Announcement on the Pre-qualification of Total Price Contract Bidding was released, and the construction of the project is about to start on the whole line.

Ji Dayuan High Speed Rail

According to the tender notice, the Inner Mongolia section of the Ji-Dayuan High-speed Railway is scheduled to start on October 10, 2021 and be completed on October 10, 2025, with a construction period of 4 years. The Qianqi Tunnel in Inner Mongolia's pre-construction section, with a total length of 4.27 kilometers, is a control project for the Inner Mongolia section. Construction began in September last year. The Ji-Dayuan High-speed Railway Ji-Da Section starts from the Beijing-Baotou Railway Station in the north, via Chahar Youyiqianqi and Fengzhen City in Ulanchabu City, Inner Mongolia Autonomous Region, to Datong South Station of the Da-Zhang High-speed Railway. Datong South Railway Station to Xiamizhuang section uses the Da-Zhang high-speed rail section. The Dayuan section starts near Xiamizhuang, the terminus of the Da-Zhang high-speed railway, passes through Huairen City, Yingxian County, Shanyin County, and Shuozhou City, passes through Hengshan, and then passes Daixian County, and connects to the Daxi Railway Station Fanjiazhuang Line Station.

The entire project line is 290.116km, of which the newly-built line is 268.5km in length, the Datong high-speed rail section from Datong South Station to Xiamizhuang is 21.616km, the Ji-Da section is 120.578km, and the Dayuan section is 147.922km, from Datong South Station to Xia Mizhuang. Mizhuang uses the Da-Zhang high-speed rail line with a length of 21.616km, including Datong and Hohhot hub related projects. The Hohhot East EMU will be expanded, the Datong South Depot will be expanded into an EMU, and a supporting hub (region) related project will be constructed.

The project in front of the bidding station is divided into 2 bid sections, bid section numbers: JDYZQ-1, JDYZQ-2. JDYZQ-1, mileage/range: DK0+000-DK32+127.39 and DK36+813.47-DK40+150. The number of projects is: 6.19km roadbed, 21310.2m double-track extra-large bridge, 8752.1m single-track extra-large bridge, 364.83m bridge, 468.52 square meters of frame bridge, 341.44 horizontal meters of culvert, 2.316km tunnel, and double-block ballastless track on the main line 2.533km, Ulan Qab Station will be changed. JDYZQ-2, mileage/range: DK40+150-DK71+901.15. The number of projects is: 1 station, 13.44km roadbed, 15660.4m double-track extra-large bridge, 1378.28m single-track extra-large bridge, 920.2m large bridge, 630.85m middle bridge, 1,321.79 horizontal extension meters of culverts, 1.098km tunnel, double-block main line without Ballast track is 1.038km, ballasted track is laid for 125.732 kilometers, ballastless track is laid for 15.48 kilometers, station line has ballasted track for 3.248 kilometers, and 25 sets of turnouts (including resurfacing) are laid. 105.9 kilometers of track laying in the Shanxi section. The post-station project is divided into 1 bid section, bid section number: JDYZH-1, mileage range: DK0+000-DK71+901.15, and the main project quantities are as follows,

This project construction bidding corresponds to the "Methods for the Preparation of Railway Capital Construction Engineering Design Estimates (Estimates)" (Guo Tie Ke Fa [2017] No. 30). Excavating roots, changing rivers (ditches), sound insulation windows, temporary land use; chapter two roadbed, chapter three bridges and culverts, chapter four tunnels, chapter five tracks (including in Shanxi Province), chapter nine other operating production equipment and buildings, ten Chapter Large Temporary Facilities and Transition Projects, Chapter 11 Other Contents Related to Construction.

Keywords: engineering construction, engineering news, engineering construction information

This project is the backbone of the regional comprehensive transportation infrastructure and an important component of the Hunan high-speed railway channel, forming the main passenger communication channel between Mengxi and Shanxi, an important channel for communication with East China and Central South, and an auxiliary channel for communication between Shanxi and Beijing. The project is a passenger-dedicated railway that pays equal attention to the inter-regional and long-distance passenger flow and the inter-city passenger flow between Hubao Eyu and the core cities of the Taiyuan urban agglomeration.Editor/Xing Wentao

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