The opening of Baolan Passenger Dedicated Line will greatly shorten the time and space distance between the northwest and the eastern and central regions, thus further optimizing the rapid railway network, realizing the separate transportation of passengers and goods in the region, and greatly solving the transportation capacity problem of the land bridge passage in the northwest region.
Baolan Passenger Dedicated Line officially started construction on June 9, 20 12 and 10. It was originally planned to be completed by the end of 20 17, and it is expected to be completed and opened to traffic in the middle of 20 17. The main stations are Baoji South Station, Dongcha Station, Tianshui South Station, Qin 'an Station, Tongwei Station, Dingxi South Station, Yuzhong Station and Lanzhou West Station.
Railway route planning
Baolan Passenger Dedicated Line starts from Baoji Xibao Passenger Dedicated Line South Station in the east, goes west along the south bank of Weihe River, passes through Shiba River, Qingjiang Road, Chaoyu River and Niu Bei, enters Tianshui City, Gansu Province, continues to the west, passes through Dongcha River and Yingchuan River, and lays Tianshui South Station for 20 miles. After leaving the station, it passes through Qin 'an County of Tianshui City, Tongwei County of Dingxi City and anding district of Dingxi City, and then passes through Yuzhong County of Dongcheng District of Lanzhou City, and then connects to Lanzhou West Railway Station.
technology standard
(1) Railway grade: dedicated passenger line;
(2) Number of main lines: double lines;
(3) Initial driving speed: 250 km/h;
(4) Minimum curve radius: 4500m；;
(5) Main line spacing: 4.6m；;
(6) Maximum gradient: 20‰, 25 ‰ in some difficult sections;
(7) Effective length of arrival-departure line: 650 m;
(8) Traction type: electric power;
(9) Train type: EMU;
(10) Train operation control mode: automatic control C2;
(1 1) Dispatching and command mode: integrated dispatching and centralized;
(12) building clearance: meet the building clearance of 250km/h passenger dedicated line.
Supporting project of hub
The supporting projects of Lanzhou Hub include the newly-built Lanzhou West Railway Station and its ancillary projects; High-speed, general-speed and inter-city cross-line tie lines; Lanzhou West Motor Vehicle Application; Rebuild the existing Lanxin Line and the existing Lanzhou West Railway Station dedicated line.
Key bridge
1. The highest bridge in the whole line: it is called Gouyi Bridge, located in Dingxi City. With a total length of 779 meters and a bridge height of 55 meters, the continuous beam with a main span of (40+56+40) meters spans the Longhai Railway.
2. The longest bridge in the whole line: Shetang Weihe Bridge, located in Tianshui City. The total length is11392m, and the main span is (80+ 128+ 128+80) m. The continuous beam spans the Weihe River as the largest span, and the main span is (72+ 120+020+72) meters.
3. Maximum span (joint length) of the whole line: Weihe Bridge in South Hechuan, located in Tianshui City. A continuous beam with a total length of 2,248 meters and a main span of (70+3* 120+70) meters crosses the Weihe River, with a joint length of 500 meters.
Key tunnel
1. The longest tunnel in the whole line: Zhujiashan tunnel, with a total length of 14.949km, located in Qin 'an County, Tianshui City, passing through Liangshan Mountain in Daxian County.
2. Maximum buried tunnel: Bijiashan tunnel, with a total length of 14.5438+0 km, located in Dongcha Town, Maiji District, Tianshui City, crossing the middle and high mountains between Jiaochuan ditch and Qinling ditch, with a maximum buried depth of 7 15m.
3. Other tunnels larger than 10km: Maijishan Tunnel, 13.932km, located in Long Yuan Town, Maiji District, Tianshui City, passing through the mountainous area of West Qinling High School between Tailu Dagou and Long Yuan; Weihe Tunnel (10.0 16km) is located in Huaniu Town, Maiji District, Tianshui City, and crosses He Jie Valley and Beishan Mountain in Tianshui City. Wujiacha Tunnel 10.456km is located in anding district and Yuzhong County, Dingxi City, Lanzhou City, and crosses the ridge of carriageway. Guchengling Tunnel is located in Yuzhong County, Lanzhou City, with a total length of 10.365km, crossing the national highway.
Bridge-tunnel ratio
Newly built large and medium-sized bridges 10 1 seat 10 1.6km, accounting for 25% of the line length, and newly built 74 tunnels with 272.4km, accounting for 68% of the line length. The total length of bridge and tunnel accounts for 93.07% of the main line.
All-line station
1, Lanzhou West Railway Station, 13 sets of 26 lines, building area of the station building 100000 square meters, with a total building area of 260000 square meters.
2. Yuzhong Station, with 2 sets of 4 lines, covers an area of 3,500 square meters, with a total construction area of 6,543.8+0.2 million square meters.
3. Dingxi South Station, with 2 sets of 6 lines, covers an area of 6,000 square meters, with a total construction area of 6,543.8+6,000 square meters.
4. Tongwei Station, 2 sets of 4 lines, covering an area of 3,500 square meters, with a total construction area of 6,543.8+0.2 million square meters.
5. Qin 'an Railway Station, with 2 sets of 4 lines, covers an area of 3,500 square meters, with a total construction area of 6,543.8+0.2 million square meters.
6. Tianshui South Station, with 3 sets of 7 lines, with a construction area of10.2 million square meters and a total construction area of 24,000 square meters.
7. Dongcha Station, with 2 sets of 4 lines, covers an area of 2,000 square meters and a total construction area of 6,000 square meters.
8. Baoji South Station, Line 8 14, with a building area of 20,000 square meters and a total building area of120,000 square meters.
meaning
Baoji-Lanzhou Passenger Dedicated Line is an important part of the national railway "four verticals and four horizontals" rapid passenger transport network. Its eastern end is connected with Xi 'an-Baoji Passenger Dedicated Line, starting from the Central Plains, North China and East China in the east, reaching Qinghai and Xinjiang in the west, and connecting with baotou-lanzhou railway and lanzhou-chongqing railway through Lanzhou Hub. It is an important part of the main skeleton of the national railway network, and it is also the main passenger passage across the northwest and central and eastern regions. It mainly undertakes the direct passenger flow in the northwest region (Xinjiang, Tibet, Gansu and Qinghai), taking into account the rapid intercity passenger flow between large and medium-sized cities along the passage. It is a high-standard, high-density and large-capacity passenger dedicated line.
After the project is completed, it will take 2 hours from Lanzhou to Baoji, 3 hours from Lanzhou to Xi 'an and 8 hours from Lanzhou to Beijing. Previously, it took about 3 hours to travel from Baoji, Shaanxi to Tianshui, Gansu. However, after the opening of the Baolan Passenger Dedicated Line, it only takes 1 hour to reach between the two places, forming a "one-hour economic circle".
The construction of Baolan Railway Passenger Dedicated Line is conducive to improving the passenger and freight transport capacity of Longhai and Lan Xin railway transport corridors, speeding up the economic and social development of Guanzhong-Tianshui economic circle and Longhai-Lan Xin economic belt determined by the state, and promoting economic exchanges and business exchanges between northwest and east China; It is conducive to promoting the underdeveloped areas in the west to accelerate the process of building a well-off society in an all-round way and improve the production and living standards of the broad masses of people along the line; It is more conducive to giving play to Lanzhou New District as a strategic platform for the country to open to the west and its central leading role in Gansu's strategic layout, giving play to the advantages of Gansu's strategic channel connecting Eurasia Continental Bridge, and further enhancing the image and level of Gansu's opening to the outside world.
Upon completion, the existing railways and passenger dedicated lines in this area will form a large-capacity transportation corridor, with the maximum transportation capacity reaching 60 million passengers and 6,543.8+0 million tons of freight, and the running speed of passenger trains will be increased from 654.38+000 km/h to more than 250 km/h, greatly shortening the travel time between the northwest region and the eastern and central regions and the space-time distance between cities. It is of great significance and function to improve the transportation capacity and quality of the land bridge passage, realize the coordinated development of the eastern, central and western regions and the smooth implementation of the western development, strengthen the integration of urban and rural areas, promote tourism along the route and promote the development of related industries.
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