A year to open more than 5000 kilometers to see China's high-speed rail 2019 "report card"
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2019-12-31
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On December 26, the reporter learned from the China National Railway Corporation that by the end of the year, China's high-speed rail operating mileage will reach 35000 kilometers, and the high-speed rail opened this year will exceed 5000 kilometers, which is the most high-speed rail opened in the past four years.
Statistics from the National Railway Group show that at the end of last year, China's high-speed rail operating mileage reached 29900 kilometers. This year, the railway department expects that 50 projects and more than 7000 kilometers of new lines will be put into operation throughout the year.
By the end of the year, more than 10 new lines have joined the "big family" of high-speed rail ". The 5000-kilometer high-speed rail is distributed in many provinces and regions in the east, west, north and south, allowing more people to experience the happiness of "just go.
In the Central Plains, the Zhengzhou-Xiangyang section of the Zhengzhou-Chongqing high-speed railway, the Zhengzhou-Fuyang high-speed railway and the Shangqiu-Hefei section of the Beijing-Hong Kong high-speed railway were opened in early December. Nanyang, Zhoukou and other cities ended the history of no high-speed railway.
In Shandong, Guizhou and Sichuan, with the completion and operation of the Ri Qu section of the Ri-Lan high-speed railway and the Yibin-Guiyang section of the Chenggui high-speed railway, Linyi, Bijie and other old revolutionary base areas and poor areas are connected to the national high-speed rail network.
On the 26th, Qianchang Railway and Changgan Passenger Dedicated Line both opened for operation. The former makes Enshi, Xiangxi, Zhangjiajie and other "poems and distant places" no longer far away. The latter has 13 stations along the whole line, with an average distance of 34.5 kilometers, basically realizing that there are stations in counties.
China's railway to create a "green project" concept to further enhance. On the Qianchang Railway, China Railway Beijing Bureau built Taoyuan Station, a new era new rural high-speed rail demonstration station, in the location of Taohuayuan in Tao Yuanming's Peach Blossom Spring. The station adopts a large-span curved roof combined with a dry-stop structure, which has a rare asymmetric and balanced layout in China, giving people a feeling of "leisurely charm and poetic dwelling.
China's railway construction capacity is also improving. Changgan passenger dedicated to a "world ballastless track first bridge". Climbing on the 10-storey Ganjiang Bridge of the Changgan Passenger Dedicated Line, overlooking the bridge deck, Zhangjiang River and Gongshui meet under the eight-mirror platform to form the Ganjiang River and rush in. The "Ganjiang First Bridge" 1.9 kilometers downstream of the intersection set a new world record-the first long-span high-speed rail cable-stayed bridge with a train speed of 350 kilometers per hour.
"It is not uncommon for cable-stayed bridges to span one kilometer in the world, but the current main spans that allow high-speed rail to fly are all below 200 meters, and the maximum speed of trains is mostly below 250 kilometers per hour." Yan Aiguo, designer of the Fourth Railway Institute, said that the main span of the Ganjiang Bridge is 300 meters, and 264 meters adopt a steel-concrete composite structure of "steel box concrete bridge deck", making the easily deformed long-span bridge more "hard".
Not only that, between the ballastless track structure layers, the designer set up a certain thickness of elastic isolation buffer layer for the first time, so that the control accuracy of the high-speed rail ballastless track plate on the long-span cable-stayed bridge was improved to 0.5mm.
By the end of the year, there will be good news for China's high-speed rail. Before the end of the year, in North China, the Zhanghu high-speed rail will be opened to traffic simultaneously with the Dazhang high-speed rail and the Beijing-Zhangjiakou high-speed rail at the end of the year. Passengers from the Beijing-Tianjin-Hebei region can realize a "one-day tour" of the Inner Mongolia prairie ". In the "south of the Yangtze River", Yinchuan to Zhongwei railway will pull Ningxia into the "circle of friends" of high-speed rail ".
The "four vertical and four horizontal" has been completed, and the main channel of the "eight vertical and eight horizontal" high-speed railway is becoming more and more dense, and China has become "smaller. Come on, get a high-speed train ticket and walk China!
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