The 5th large area speed increase of China Railway

Introduction: the price of the domestic secondary soybean oil market on March 3, the price of the market declined slightly How fast can the train run? "In a sense, new technology is often born for speed." Liu Youmei, academician of the Chinese Academy of engineering and senior engineer of Zhuzhou Electric Locomotive Works in Hunan Province, made a new remark in an interview On February 22, 2004, the Ministry of Railways announced that on April 18 this year, China's railways have made the fifth large-scale speed increase since 1994, with lines of 160 kilometers per hour and above reaching 7700 kilometers Several major trunk lines will run a batch of "one station direct special fast lines" Car " Next year, the sixth large-scale wvk speed increase will be implemented, and the speed of some trunk trains can be increased to 200 kilometers per hour What's the concept of wvk at 200kph? The average speed of F1 car in most cases is more than 200 km / h Wvk "drives the passenger cars faster and attracts more passengers", for which the Chinese railway department has great enthusiasm In June 2003, the Qinhuangdao Shenyang passenger dedicated line was completed, and its design speed was 200 km / h (the reserved condition was raised to 250 km / h) At the time of completion and test run, the "star of China" high-speed train designed and manufactured by China has reached a maximum speed of 321.5 km / h This is enough to compare with the fastest average speed of 247.585 km in F1 and the fastest straight speed of 361.8 km WVk At the same time of drawing the fifth and sixth large-scale speed increase picture, it is also striking that the information that has been included in the planning or is under construction includes 12000 kilometers of passenger dedicated lines, a large number of rapid passenger transport channels between provincial capitals and large and medium-sized cities, as well as three intercity rapid passenger transport systems in the Bohai region, the Yangtze River Delta region and the Pearl River Delta region This series of lines, including the Qinhuangdao Shenyang passenger dedicated line that has been opened, and the Beijing Wuhan express train that will be opened in this year, also aim at a number: 200 kilometers per hour After April 2004, wvk will have train speed of 200 kilometers per hour on 28 railway lines in China Carrying the possibility of "200 kilometers per hour" is like: on the high-speed railway with high-speed development, the train with bullet head whistling past is as fast as F1 car "Technical and economic analysis shows that the speed increase of 200 kilometers per hour is technically feasible and economically cost-effective," officials from the Ministry of Railways said in an interview Wvk is described as "platypus like" electric locomotive with the design speed of 270 km / h, while the special designed "pioneer" locomotive with the speed of 200 km / h has been put into use Wu Xinmin, director of the science and Technology Department of the Ministry of railways, therefore said that there are no technical problems in the production of high-speed locomotive locomotives in China In terms of wvk's operation, academician Liu Youmei said that there is a huge project in full swing - F1 car with similar speed to high-speed train will face acceleration equivalent to 4-5 times of its own gravity when turning on the track, and the train operation can't bear such a sharp turn The larger the curvature radius of the curve is, the smoother the train turns Song Shuming, an expert from the safety supervision department and the science and Technology Department of the Ministry of railways, said that in order to be as stable as possible, the railway department adjusted the curves on the 60000 kilometer railway line one by one, transforming all the lines with small radius into large radius or straight line, and at the same time raising the outer track of the curve Wvk is speeding up, and many technical details need to be changed, such as the way to deal with the waste in the toilet: the air pressure on both sides of the train is reduced, and the toilet on the train also needs to adopt the waste treatment system similar to the aircraft Whether the wvk train can stop at high speed is the key to safety Dr Qian Lixin, from the Research Institute of Railway Science, said that in terms of rolling stock, the main problem is to solve the brake problem, that is, the brake should be reliable Now the speed-up train adopts disc brake and electronic antiskid device, which is a major breakthrough in speed-up technology in China Kang Xiong, vice president of the Academy of science and research of the Ministry of railways, said that at present, the speed of the train is 140 kilometers per hour, and the stopping distance of emergency braking at such speed is 1100 meters His colleague, Dr Qian Lixin, told reporters that the current Speed-up Trains in China adopt disc brake and electronic anti-skid device, which can ensure that the braking distance of the train is less than 1400 meters at 160 km / h Another key point of wvk is the "black box" Song Shuming mentioned that some trains will be equipped with supervision equipment This kind of equipment similar to "black box" can cooperate with the advanced DMIS dispatching and transportation command management information system to measure the derailment coefficient, overload, partial load, door opening and closing, wheel flaw detection and other operation conditions of the vehicle at a fast driving speed, and has the alarm function, so that the driving safety is always in the dynamic monitoring After the dazzling technical vocabulary, wvk is more important for human factors No matter how advanced the technology is, it must be manipulated by human beings It is said that the Wuhan Beijing high-speed line to be opened in this year will recruit high-speed train drivers, and complete a set of 70 tests within 10 minutes After accepting the psychological test of the expert group, 13 of the 80 drivers are judged to be unsuitable for driving high-speed trains The technical reliability of wvk is a prerequisite, and the key point for China's railway sector is that speed produces benefits When the TGV high-speed train from wvk Paris to Lyon started, 20% of the passengers from the two places took the train and 80% took the plane Up to 1999, 90% of them had taken the train and only 10% had taken the plane Experts from France railway have come to the conclusion that the high-speed railway has a transport distance of less than 500 kilometers and a running time of less than 3 hours, and its competitiveness and competitiveness are incomparable with other means of transport Therefore, the high-speed railway for passenger transport, because of its high speed and economic price, will be chosen as a travel tool by more and more passengers Wvk passive and railway experts across wvk World Bank once commented that the railway is traditionally built vertically and horizontally, and is as solid as a rock They not only control all their businesses and facilities from top to bottom, but also provide an all-round social support system for employees This rock is an expensive mistake Wvk Huang Min said that the investment plan of the Ministry of Railways this year is 100 billion yuan, and one of the investment focuses is to expand the capacity of the main line transportation "In order to alleviate the" bottleneck "constraints of railway transportation as soon as possible, we must select some projects that can achieve breakthroughs as soon as possible." Another important move of the Ministry of Railways this year is the launch of the fifth large-scale speed-up map Liu Zhijun said, "the fifth large-scale speed-up map will further enhance the railway's competitiveness." One of the purposes of wvk's fifth speed increase is obviously to develop medium and long-distance passenger transport and vigorously expand the passenger transport market The Ministry of Railways announced that April 18 will be the fifth time for the country's railway to speed up in a large area From a longer-term perspective, Huang Min said that to rapidly improve the transportation capacity and build a developed railway network as soon as possible is an important part of the medium and long-term railway network planning, as well as an important measure to solve the "bottleneck" constraints of the railway The new direction of railway investment is to improve the road network structure in the Middle East, expand the scale of the road network in the west, and improve the adaptability to economic development "In order to form the Western Railway Network as soon as possible, about 16000 kilometers of new lines are planned to be built Form the northwest and Southwest International Railway channel, northwest to Huabei new channel, northwest to southwest new channel, Xinjiang to Qinghai, Tibet convenient channel; improve the western region and the east central railway network " Wvk Huang Min said, "we should increase the construction of large-scale channels connecting the West and the Middle East In addition to a railway in areas with a population of more than 200000 in the west, we should strengthen the transportation capacity of the railway trunk lines in the eastern railway network, and build fast intercity trunk lines in areas with dense urban population." According to the plan, the railway department will establish fast passenger transport channels between provincial capitals and large and medium-sized cities, as well as three intercity fast passenger transport systems in the Bohai Rim region, the Yangtze River Delta region and the Pearl River Delta region The construction of passenger dedicated line will reach more than 12000 kilometers The East and west of wvk are obviously different Huang Min explained that the western region has a large one-off investment and a large fixed capital investment This is more from a long-term perspective and plays a pulling role The characteristics of western development and public welfare are obvious At the initial stage, only political accounts and social accounts can be calculated, not economic accounts Wvk from the perspective of investment, Huang Min believes that people who run highways do not need to be equipped with transportation tools, while people who run railway lines need not only to repair lines, but also consider transportation tools Although the latter is included, the investment of railway is still cheaper than that of expressway Wvk "speed is very important for passenger transport Without speed improvement, there will be no series of improvements Speed is an important mark in realizing railway modernization " Huang Min said WVk