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Original title: The longest “horizontal” of the “eight vertical and eight horizontal” high-speed rail network is 3,422 kilometers long.
On February 8, the Xu (Zhou) -Lian (Yungang) high-speed train with a total length of about 180 kilometers and a design speed of 350 kilometers per hour was opened to traffic.LianyungangUp to 60 minutes. “Until now, our country”Eight vertical and eight horizontal‘high speedrailwayThe longest horizontal pass in the network: 3,422 kilometers in lengthLianyungangHigh-speed rail line to Urumqi to be completedLand bridge economicsCorridor development provides strong support. “The competent person in charge of the National Railway Group presented:LianyungangThe high-speed train to Urumqi is the longest in the “eight vertical and eight horizontal” high-speed train network.
China Railway ConstructionXu Guang, head of Xulian high-speed train design at the Fourth Railway Institute, told the Science and Technology Daily reporter that the Xulian high-speed train is the easternmost section of the “eight vertical and eight horizontal” Lianyungang-Urumqi passage. . and the last section. It is the same as Zhengzhou to Xuzhou, Zhengzhou to Xi’an, Xi’an to Baoji, Baoji to Lanzhou and Lanzhou to Urumqi are connected by high speed railways, forming a land bridge of 3,422 kilometers in 3 time zones.
Construction of the Zhengzhou-Xi’an high-speed railway began in September 2005. In 15 years, the high-speed railways from Zhengzhou to Xuzhou, from Zhengzhou to Xi’an, from Xi’an to Baoji, from Baoji to Lanzhou and Lanzhou to Urumqi have been completed and opened to traffic. Longer “horizontal” high-speed railway passes through areas of high winds, areas of collapsible loess and softEarthConstruction has gone through the entire process of building my country’s high-speed rail, from introduction, digestion and absorption to independent innovation, creating a number of pioneering technologies in the world.
Zheng XiHigh speed railIt is the world’s first high-speed railway with a design speed of 350 km / h built in a collapsible loess area.The tunnel construction is carried out in the collapsible loess area, due to the soft ground and the ability to extremely low load, it will sink when it meets the water.riskVery big.
The Xinjiang section of the Lanzhou-Xinjiang high-speed railway passes through 4 windy zones. Among them, the “Baili Wind Area” and the “Thirty Mile Wind Area” have the strongest wind power.DivideThe maximum wind speed in the section reaches 60 m / s, which is equivalent to a seventeenth wind. Lanxin High-Speed Railway Construction pioneered the construction of reinforced concrete windshields on the Gobi section. The section of beams installed windshields composed of H-shaped steel columns of different sizes and perforated corrugated steel plates. The core of the Baili wind area with the strongest wind is in the roadbed, a 1.2 km long windbreak tunnel was set up. It forms a unique landscape where a strong wind blows outside the “wall” and a moving car flies inside the “wall”.
Zhengxu high-speed railway line is the first to use China’s independent research and development and has full independence.Know howpropertyCRTS-Ⅲ ballastless track slab has the world’s first precision error, no more than 0.5mm. The smoothness of the high-speed train is greater and the comfort of the passengers is better.At the same time, the Zheng-Xu high-speed railway also gave birth to a new world speed record for high-speed trains, two of the which were designed and developed by China and wholly owned by China.Intellectual propertyChina’s standard EMU, the “Fuxing” EMU, was successfully crossed at a speed of 420 kilometers per hour.
The Xulian High Speed Railway, which has just come into operation, is a high-speed intelligent railway.Construction method. “The electronic ticketing system and passengers used by Xulian High-Speed RailwayServiceInformation systemThey are highly intelligent information systems. “Xu Guang said that theIndependent intellectual property rightsCTCS-3 level train operation control system to meet train speedthe goalThe value is 350 km / h, and the safe operation of the train is monitored by the continuous speed control mode and the braking priority of the equipment.
“East China Sea Bridge of Xu-Lian High-Speed Railway was adoptedindustryShort track method of prefabrication and segmented assembly, tied arch continuous girders, etc., are used for the first time in high-speed rail projects in my country. “China Railway ConstructionTie SiyuanbridgeTan Hong, chief designer, said.
The competent person in charge of the China National Railway Group said that the Xulian high-speed railway is also an important link connecting the Beijing-Shanghai canal and the coastal railway canal.Beijing-Shanghai high-speed train, Zhengxu high-speed railway, Xuyan high-speed railway, on the Lianyungang Coastal Link Railway Canal and Lianzhen High-speed Railway, further improving the structure of the railway network.The opening and operation of the Xulian high-speed railway will greatly facilitate people’s travel along the line, effectively unleash the existing railway cargo capacity, help to strengthen the leadership and support role of the eastern starting point of the new bridge Eurasian mainland of Lianyungang. Economic Corridor and help Xuzhou play a role as HuaihaiEconomic zoneThe radiant and leadership role of the central cities is of great importance in serving the “Belt and Road”.
(Source: Science and Technology Daily)
(Responsible editor: DF064)
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