Expert analysis points out the reason of Shanghai-Hangzhou high-speed train speed to 416.6 kilometers

Yesterday, China's domestic "harmony" crh380a a new generation of high-speed EMU, in Shanghai-Hangzhou high-speed railway from Hangzhou to Shanghai Hongqiao test run, the highest speed of 416.6 kilometers, again to refresh the world's rail operation test the most high-speed. Why can the Shanghai-Hangzhou high-speed rail "fly" to 416.6 kilometers?　　The reporter interviewed the railway experts. The latest development of the train in the test run yesterday morning, the high-speed EMU at 10:27 from Shanghai Hongqiao Station, to the top speed of 413.7 kilometers to stop in such a number.　　And from Hangzhou to return to Shanghai Hongqiao, the top speed is reached 416.6 kilometers. Can create a world record, China's latest development of high-speed EMU natural work.　　The same day as a trial run task is the domestic "harmony" crh380a new generation of high-speed EMU, with independent intellectual property rights, is currently the world's fastest operating speed, the highest technology content of high-speed trains, in a number of aspects of the system innovation to reach the world's leading level.　　From September 2006 onwards, our country's emu from 200 kilometers per hour, 250 kilometers, 300 kilometers, 350 kilometers all the way jumped, this year, 380 kilometers per hour of the new generation of high-speed train "harmony" crh380a offline, opened the Chinese new generation of high-speed EMU mystery. Line to bridge the road to Shanghai-Hangzhou high-speed railway can create a world record, and the new line features are inseparable. Whether with the old Shanghai-Hangzhou railway, or with the July 1 just opened the Shanghai-Nanjing high-speed railway, the line of the Shanghai-Hangzhou high-speed railway must be straight, in addition to the station and some of the line conditions limit can not bridge, the remaining lines are bridges, "to Bridge Generation Road" line accounted for 87% of the total line.　　In this way, the tunnel and the corners are less, the speed naturally can run up. In addition, the Shanghai-Hangzhou high-speed railway using a new track construction technology, the sleeper itself is concrete water, subgrade without gravel, rail, sleeper directly paved on the concrete road, using a series of advanced construction technology such as filler and layered rolling, including drainage facilities are synchronized.　　With this kind of construction technology, the train will not have to slow down even if it runs in a corner.　　Safe and foolproof high-speed rail operation, whether it is fixed equipment or mobile equipment, whether hardware or software systems, must ensure that 100% to achieve technical specifications and design standards. It has been noted that the Shanghai-Hangzhou high-speed line design speed is 350 kilometers per hour, on-line trial operation of the crh380a new generation of high-speed EMU design speed is also 380 kilometers, no more than 400 kilometers, then why should the test run the highest speed "leap" to 416.6 kilometers?　　Railway experts explained that this is precisely for the "safe reserve", only trains in the test run can run a higher speed, formal operation can guarantee absolute security.　　During yesterday's trial, more than 1000 sensors were buried under the test car, which would monitor each group of data in real time, and each additional 5 kilometres would have a corresponding report to test the performance of the routes and trains. Newspaper reporter Jinzhigang