Fuzhou-xiamen railway is the first-class double-track electrified railway trunk line of China Railway, with a design speed of 250 kilometers per hour. There are totally 4 stations/kloc-0, with a total investment of/kloc-0, 52.59 million yuan.
Construction started on September 30, 2005, the whole line was connected on July 20, 2009, and it was officially opened to traffic on April 26, 20 10.
brief introduction
General situation of fuzhou-xiamen railway
Fuzhou-xiamen railway is a key construction project in the Medium and Long-term Railway Network Planning, an important part of "one vertical" in the "four vertical and four horizontal" express passenger corridor, and the second express railway in Fujian Province after Wenfu Railway. Fuzhou-xiamen railway starts from Fuzhou in the north and reaches Xiamen via Fuqing, Putian, Quanzhou and Jinjiang. The total length is 273km, of which the subgrade length is166.378km, accounting for 63.1%of the line length; *** 183 bridge 72029.34m, accounting for 24.09% of the total length of the line; There are 36 tunnels with a length of 2779 1m, accounting for 12.8 1% of the total length of the line. The station building covers an area of 24 1.600 square meters, including 50,000 square meters for production. The total investment is 654.38+05.259 billion yuan.
technology standard
Functional orientation: passenger transport is the main factor, while freight transport is also considered.
Railway grade: National Railway Grade I;
Number of main lines: double lines;
Design speed: 250km/h, with 300km/h reserved;
Row spacing: 4.6m；;
Minimum curve radius: 4500m；;
Maximum design slope: 6 ‰;
Effective length of arrival and departure line: 850 meters;
Traction type: electric power;
Train type: EMU;
Train operation control mode: automatic control;
Traffic command mode: integrated dispatching centralized.
Line introduction
Laying cross-section jointless track on the main line of the whole line. Except for the ballastless track 10. 1km laid between Huangjingling tunnels, the rest are ballasted tracks. CFG pile, prestressed pipe pile and other pile-net composite foundations are used to treat soft soil subgrade for the first time. The turnout at Putian Station adopts a single turnout with a speed of 350km/h and a rail of 60kg/m on the passenger dedicated line. The new infrared axle temperature detection system (THDS-A) is adopted in the whole line, and CTCS-2 train operation control system technology is adopted in the signal engineering. A world-class disaster prevention and safety monitoring system has been installed along the whole line, and 63 monitoring points have been set up to monitor wind and rain and foreign bodies. The main span of Minjiang River Bridge adopts three-span (99+ 198+99)m continuous steel truss flexible arch beam, which is the highest of its kind in China at that time.
Xiamen Sea-crossing Bridge is 5 1 100m long, which is greatly affected by the tidal drop, and is located in the sea area where the national first-class protected animal, White Dolphin, lives. The railway bridge is parallel to the original highway bridge and has become a new landmark building in Xiamen. The total length of Mulan River Bridge is 6830m, of which 128m tied arch beam has the largest span among similar bridges in China, weighing more than 3000 tons. The main bridge of Wulongjiang Bridge is a (80+3× 144+80)m concrete continuous beam with a total length of 593.8m, which is the largest prestressed concrete continuous beam bridge in China's railways. The large-tonnage hyperboloid spherical isolation bearing has been successfully developed. Huangjingling No.2 tunnel has a total length of 5,735 meters and complicated geological conditions. The slope eluvial layer and weathered layer near the entrance and exit of the tunnel are thick, and the tunnel body and joints and cracks are developed. The tunnel adopts double-block ballastless track structure.
Construction significance
Fuzhou-xiamen railway is integrated with the newly-built Hangzhou-Ningbo high-speed railway, Ningbo-Taizhou-Wenzhou railway, Wenfu railway and xiamen-shenzhen railway, forming a fast railway passage along the southeast coast, closely connecting the Yangtze River Delta, the west side of the Taiwan Strait and the Pearl River Delta. It is of great significance to alleviate the railway "bottleneck" in the southeast coastal areas, improve the road network structure, improve the comprehensive transportation capacity, and promote the economic development on the west side of the Taiwan Strait and the reunification of the motherland.
Before 1949, there was no railway access in Fujian Province except for the short Zhang Xia Railway. In the decades after the founding of the People's Republic of China, due to the rugged and mountainous terrain, it has been at the forefront of coastal defense for a long time. Since the opening of the yingtan-Xiamen railway in 1957, the development of Fujian railway has been difficult. Existing lines, such as yingtan-Xiamen Railway and Fengfu Railway, were built earlier, with lower technical standards, and there are problems such as large slope, many small radius curves and poor line foundation. In summer, serious water disasters and geological disasters often lead to railway shutdown. Take Fuzhou-Nanping section of Fengfu Railway (Waifu Railway) as an example. When this section was just built, it was a war-ready railway, with a minimum curve radius of only 200m, an ultimate slope of 9‰ and a maximum slope of 12‰. This is quite different from the curve radius of 3500m and the slope limit of 6‰ for new high-speed railways. There are also many train speed limits, the average speed is only 60km/h, and the 406 km journey of Fengfu Line takes more than 7 hours. The minimum curve radius of the northern section of yingtan-xiamen railway is 250m, and the maximum slope is over 22‰. The passing area is mountainous and rainy, and sometimes the railway is interrupted due to the outbreak of mudslides. The average speed of some sections is as low as 40 ~ 50 km/h. In the mid-1980s, Fujian's economy began to take off, but the backward traffic seriously restricted its economic development. The existing railways have low technical standards, slow speed and insufficient transport capacity, and the loading satisfaction rate is often less than 40%. A large number of materials needed for industrial and agricultural production and people's life are blocked in yingtan marshalling station, and they can't get in or out. Yingtan Port has long been one of the four restricted ports for railway transportation in China, so it is imperative to speed up the construction of railway network.
In the first decade of 2 1 century, Fujian railway entered a stage of rapid development with the strong support of the spring breeze countries for high-speed railway construction. In this context, fuzhou-xiamen railway, as the first intercity express passenger and freight passage in Fujian Province, will effectively improve the traffic and investment environment along the route, give full play to its advantages in location, port and opening, and accelerate the construction of the economic zone on the west side of the Taiwan Strait with its advantages of high speed, high density, large capacity, low freight rate and safety and comfort. After the completion of the express railways such as Wenfu, Fuxia and Xia Long, the five economic center cities in Fujian Province-Fuzhou, Putian, Quanzhou, Xiamen and Zhangzhou-will be directly integrated into the coastal transportation network, and the travel time in fuzhou-xiamen railway will be shortened from nearly 15 hour to less than 2 hours. EMU trains with a speed of 200 kilometers per hour will greatly accelerate the passenger transport speed of Fujian Railway, make the transportation links between major cities in the province and outside the province more convenient and fast, completely resolve the technical and speed bottlenecks that have plagued Fujian Railway for many years, and promote the formation of a relatively complete "two vertical and five horizontal" rapid railway network from Fujian to the Twelfth Five-Year Plan period.
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