After hearing Liang Haiping talk about the weaknesses of the double-decker car, Liu Changhe laughed and shook his head and said, "Haiping, the express express under the Road Bureau is not all running for 16 hours. For example, the distance between Shengjing and Dalian is only 400 kilometers. If the 25s can reach the designed speed, can Shengjing and Dalian be compressed to 3 hours? In this case, the shortcomings of Haiping are not shortcomings. ([] )"

"It's still Director Liu's vision. I, who became a monk halfway through the road, have only the understanding of the railway system."

Liang Yuan felt a little embarrassed when he heard Liang Haiping and Liu Changhe praising each other. Now is not the new century. Domestic railways have accumulated a lot of operation experience at two levels: 120 km/h and 140 km/h. It is natural to speed up to the quasi-high-speed railway.

In 1987, the general operating speed of trains in China was only about 4,050 kilometers hours, forming a series of basic technologies for quasi-high-speed railways, such as ultra-long-distance seamless rails, high-power high-speed traction locomotives, electrified railway signal control systems, semi-closed or fully closed interval control, anti-settlement roadbeds, etc., can be said to be that there is no foundation at all.

There is only one underneath that can theoretically run 160 kilometers and then he has the idea of ​​a quasi-high-speed railway? Liang Yuan subconsciously shrank his neck. In his previous life, the Ministry of Railways only came into contact with a quasi-high-speed train with a speed of 160 kilometers per hour in 1998, and only began to promote the quasi-high-speed train grouping that took the first train of "k".

After the Northeast Locomotive Factory introduced the double-decker undercarriage from Democratic Germany, it advanced the process by 10 years. Liang Yuan was worried about his hair. The high-speed railway is not a joke. If the Ministry of Railways has introduced a 160-kilometer-hour undercarriage, it will force the quasi-high-speed railway with a speed of 160-kilometer-hour undercarriage due to insufficient technical accumulation. If the accident occurred in the previous high-speed railway 7.23, it would be a shame to the famous traverser.

"Director Liu, do you think the department wants to take the quasi-high-speed railway?" Liang Haiping finally asked the question Liang Yuan wanted to ask the most.

Liu Changhe pondered for a moment before saying, "Since the 25s has been successfully offline, Haiping will know some things sooner or later."

"The Ministry had already made this plan. As early as 1980s, the central government conducted research and discussion on high-speed railways and air transportation. Which mode of transportation is more suitable for our country, and finally concluded that our population density is far greater than that of the United States. It is not suitable for our national conditions to vigorously develop aviation like the United States. It is Japan's Shinkansen high-speed train that is very consistent with our population situation."

"When Comrade 286 visited Japan, he took Shinkansen high-speed trains many times. He was very impressed by the Shinkansen. After returning to China, he asked the Railway Research Institute many times whether my country has the ability to study similar high-speed train marshallings."

"The 25g undercarriage, which was originally scheduled to be replaced with t1112 times, is the key link in the construction of a quasi-high-speed railway in the department. The prototype of the 25g is Changchun Bus Factory introduced the British 25-O undercarriage through a World Bank loan, with a construction speed of 140 kilometers. After Changke carried out a series of localization work on the undercarriage, it found that the 204p bogie that matched the undercarriage had design defects, and the temporary operating speed could only reach 100 kilometers."

"As the original plan of the department, the 25g model car was removed from the line. The replacement of the t1112 times was only the secondary purpose, mainly to provide the undercarriage for a newly opened line in the department." Liu Changhe stopped, looked up at the red banner hanging high at the entrance of the garage, nodded with satisfaction before continuing: "As early as last year, the department decided to take advantage of the fewer bends of Shanda Railway. Shengjing and Dalian are the advantages of regional ** connection hubs. They opened direct express trains with a speed of 140 kilometers per hour between the two places to accumulate experience in operating the quasi-high-speed railway in the future. In order to cooperate with the 25g model 140 kilometers per hour, the road bureau carried out a large-scale upgrade and transformation of the switches along the way last year, and even the names of the new trains were collected through newspapers. They were called Liaodong Peninsula."

"I originally planned to be officially launched on January 1 next year. I didn't expect that the problem of Changke 204p bogie could not be solved for a long time. I only felt relieved after passing the ring line test of the department in the 25s a few days ago. Otherwise, the Liaodong Peninsula, which will be opened next year, will probably continue to use the original 22-type undercarriage, which will be unlucky."

After Liang Yuan and Liu Changhe said so much, he suddenly realized that the Ministry of Railways in his previous life was cheated by the British. Foreigners were not easy to get money. It was indeed a matter of asking you to buy defective products at a high price, and at the same time, it also allowed you to take countless detours.

In 1988, the Liaodong Peninsula train was launched as scheduled, and it was equipped with the Model 25 undercarriage produced by the Changchun Bus Factory. At that time, the Ministry of Railways was only focusing on publicity. The Liaodong Peninsula was the first non-stop direct train between two cities in the country. The operation speed of the group was not mentioned at all.

It was not until 1994 that Changke solved all the problems of the 204p bogie. In July of that year, 16 passenger buses filled with passengers were pulled by two Dongfeng 4b locomotives. They started from Shengjing Station and did not stop along the way. Four hours later, the Liaodong Peninsula arrived at Dalian Railway Station. The operation of the Liaodong Peninsula finally reached 100 kilometers per hour, becoming a milestone in the history of China's railway acceleration.

When Liang Yuan went to Dalian for a trip, Li Yuanling took Liang Yuan to work on the Liaodong Peninsula train. In Liang Yuan's impression, the Liaodong Peninsula was extremely cool and was the kind that swayed across the entire Changda Railway. In order to ensure the speed of the Liaodong Peninsula, regardless of passenger freight, all train groups had to avoid the Liaodong Peninsula. Liang Yuan once counted that during the four-hour trip from Shengjing to Dalian, the Liaodong Peninsula had more than 20 passenger groups. Basically, every time you pass by a station, you will see a passenger train stopping and waiting to avoid it.

Liu Changhe looked at the long blue and white rows parked in the garage, and the 25S model under the slim and straight body lines nodded with satisfaction and continued: "While signing the agreement this time, the joint trial and commissioning work of the 25S model under the 25S model under the slightest, the joint trial and commissioning work of the 25S model under the slightest. The chief engineer Zhao Tiemin and deputy minister Liu Zhigao will both board the bus to participate in the first joint trial and commissioning work. If the 25S model had not made a big splash on the ring line, I would have no confidence to agree to their request."

"If time permits, Haiping would better transfer several railway experts from Benxi from Benxi. During the joint trial and commission, Zhao Tiemin, chief engineer, is likely to ask Haiping about the potential of speed-up in the 25s model. As for the problem of poor riding experience after the bottom of the vehicle reaches the designed speed, Haiping doesn't have to worry about it. Let us first solve the problem of whether there is any or not, and then consider whether it is comfortable."

Liang Yuan followed behind and listened to Liu Changhe saying so much, so he roughly understood the attitude of the Ministry of Railways and the Road Bureau towards the Northeast Locomotive Factory. There is no need to worry about the Ministry and the Road Bureau giving them a little shoes. However, since the Ministry plans to use the Liaodong Peninsula for quasi-high-speed railway tests, the problem under the vehicle has been solved in time due to Liang Yuan's appearance, but how to solve the problem in the head of the traction machine (to be continued...)

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Chapter completed!