brief introduction
Liunan Intercity Railway (Liunan Passenger Dedicated Line) starts from Liuzhou Station in the north and ends at Nanning Station in the south. The main line has a total length of 226km and a design speed of 250km/h, of which Liuzhou Station to Jinde Station 15km (speed limit 120km/h) and Jinde Station to Nanning East Station (design speed 250km/h).
The project officially started construction on June 5438+00, 2009 and was opened to traffic on February 30, 2065. After the project is completed, Laibin, Liuzhou and Nanning will realize "the same city". It takes only 30 minutes for guests to arrive in Liuzhou, 50 minutes for guests to arrive in Nanning, and Liuzhou to Nanning 1 hour.
Overview of production line
There are 7 temporary stations on the whole line, namely Liuzhou Station, Jinde Station (Yuexing Station), Laibin North Station, Binyang Station, Wutang Station (Yuexing Station), Nanning East Station and Nanning Station. Among them, Nanning East Station is newly built, and it is also the largest and most modern railway passenger station in the whole line. Two new intermediate stations, Binyang and Laibin North, will be built, and Nanning, Jinde and Liuzhou stations will be rebuilt. Bajiaoling Tunnel, with a total length of 4.08km, is a full-line controlled project (located in Chenping Township, Binyang County).
The line is connected with Nanguang High-speed Railway and Qin Nan High-speed Railway at Nanning East Station, and there is a connecting line at Binyang Station to communicate with Nanguang High-speed Railway. Liunan Passenger Dedicated Line starts from Liuzhou Station in the north and ends at Nanning Station in the south, with a total length of 226.69 kilometers. The total investment of the project is 211.1.600 million yuan, and the design period is three and a half years. After starting from Nanning East Station, Nanguang High-speed Railway and Liunan Passenger Dedicated Line go hand in hand, and the four-line railway extends to Binyang Station side by side, and then "go their separate ways". Nanguang High-speed Railway goes to Guangzhou and Liunan Passenger Dedicated Line goes to Liuzhou. From Nanning to Binyang Station, the Nanguang High-speed Railway and Liunan Passenger Dedicated Line are not * * * lines, but walk side by side, and the lines are all newly built.
Major project
Bajiaoling Tunnel, Hengzhai Double-track Bridge, Dong Tang Double-track Bridge, Tunli Double-track Bridge, Nanhe Double-track Bridge, Bayi Double-track Railway Bridge, Hexagon Railway Bridge, Hongshuihe Double-track Bridge, Binyang Hengzhai Beam Yard.
The Longest Bridge in Liuzhou Hub, Liangnanhe Double Track Bridge, was introduced into Liunan Passenger Dedicated Line, with a total length of 1, 799.68 meters. It is the longest bridge leading from Liuzhou to Nanning Passenger Dedicated Line to Liuzhou Hub, and it is also one of the key projects of "one stop and two bridges" in the three major control projects of the whole line. Its construction progress is directly related to the construction progress of the whole line.
Among them, the route of Hengzhai Bridge passes through Wangling Town and Gula Town of Binyang County. The total length of the bridge is 1 1.525km, which is the longest bridge in Guangxi at present. The longest high-speed railway bridge in Guangxi is 1 1.5 km, which is located in Gula Town, Binyang. It is a four-line parallel railway bridge from Binyang Station of Nanguang High-speed Railway and Liunan Passenger Dedicated Line to Nanning. It consists of two bridges, one with four tracks. A * * * has 353 piers, and each pier is more than 30 meters apart. A * * * has 353 piers, 4 tracks and 8 rails running side by side. The substructure of the bridge adopts double-line rectangular hollow abutment, round-ended pier, open-cut foundation and bored pile foundation, with a total of 4,504 piles, totaling 82,703 linear meters and 708 piers. The bedrock of Hengzhai Bridge is limestone with strong karst development. The largest cave has a diameter of 19m and a depth of 45m. The longest pile foundation is 60m.
The largest high-speed rail beam yard in China, Binyang Luheng Beam Yard Hengzhai Beam Yard, covers an area of 3 16 mu and passed the national production license certification in July 20 10. Located in Gula Town, Binyang County, 0/5km away from Binyang Station/KLOC-0, it is the largest box girder yard in China's current high-speed railway construction, and undertakes the prefabrication task of the newly-built Liunan section of Xianggui Line and Li Nan high-speed railway. Covering an area of 365,438+06 mu, it has mass-produced 65,438+065,438+003 pieces of 32-meter and 24-meter box girders for Liunan Passenger Dedicated Line and Li Nan High-speed Railway. Steel alone needs more than 70,000 tons, and cement needs1100,000 tons.
Hongshuihe Bridge is a control project of Liunan Passenger Dedicated Line, with a total investment of about 65.438+0.32 billion yuan, a bridge length of 2,250.728 meters and a main span of 654.38+0.44 meters.
Main technical standards
Railway Grade: Passenger Dedicated Line
Railway grade: Grade 1.
Number of main lines: double lines
Restricted slope: 12‰
Bridge-tunnel ratio: 50%
Speed target value: 250 km/h.
Electrochemical mode: 50Hz, 25 000V (AC).
Line length: 224 kilometers
The minimum curve radius is 5500m, and Nanning and Liuzhou hubs are determined according to the speed of road sections.
Traction type: electric power
Locomotive type: China Railway High-speed/electric locomotive.
Effective length of arrival and departure line: 650 meters
Train operation mode: automatic control.
Traffic command mode: comprehensive dispatching.
Gauge:1.435mm.
Line spacing: 4.6m.
Sites and mileage
Liuzhou is 0 km away from Guizhou-Guangxi Railway, Liu Jiao Railway Contact Line and Gui Xiang Railway, heading for Guiyang, Yueshan and Hengyang.
Jinde 14 km
66 kilometers north of Laibin
Binyang Station 13 1km (connecting Nanjing-Guangzhou high-speed railway to Guangzhou)
Wu Tang station 182km
Nanning East 2 12km (connected to Guangxi coastal intercity high-speed railway, heading for Qinzhou, Fangchenggang and Beihai)
Nanning is 223km (connecting Nanning-Kunming Passenger Dedicated Line and Gui Xiang Railway, heading for Baise, Kunming, Chongzuo and Pingxiang).
Functional importance
Liunan Passenger Dedicated Line is the first high-speed railway passenger dedicated line in Guangxi and a sub-project of Gui Xiang Railway Capacity Expansion and Reconstruction Project. The project officially started construction on June 5438+ 10, 2009, and was put into production on February 30, 2006. After it is put into operation, it takes only 1 hour and 16 minutes from Liuzhou to Nanning, and Liuzhou will be integrated into the Beibu Gulf economic circle at 1 hour, which will not only shorten the time and space distance between the two places and form a "one-hour economic circle", but also take the lead in realizing the same city effect in Guangxi. The Liuzhou-Nanning Railway will realize the separation of passenger and freight, and the existing Gui Xiang Railway will undertake the freight function, and the passenger function will mainly be undertaken by the intercity line.
"Now the guest room rate is less than 2,500 yuan, but Liuzhou is more than 4,000 yuan, and Nanning is as high as 6,000 yuan." What is more noteworthy is that with the advent of the high-speed rail era, intercity railways will become public transportation, and people's lifestyles will also change. It will be possible to work in Liuzhou and Nanning and live in guest houses. In this way, guests may become the expansion area of urban residential functions in Liuzhou and Nanning, and some people may choose to buy a house in the guests.
Officially opened to traffic
20 13 12.30 Liunan Passenger Dedicated Line was officially opened to traffic. It takes only 1 hour 16 minutes from Nanning to Liuzhou, 1.02 minutes from Liuzhou to Guilin, 2 hours 2 1 minute from Nanning to Guilin, and 45 minutes from Nanning to Liuzhou to Guilin.
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