Seeing the two silver coins jumping on the table, Zhang Haipeng's face couldn't help but pull down, obviously, as Chu Jianghe and others said, when the train passed through the curved section, the carriage would not only sway left and right, but also jump slightly up and down. Pen "Fun" Pavilion www.biquge.info

The beating of the train is obviously caused by the unevenness of the rail, which has little impact on the operation of the train when the speed is low, and will not affect the safety of the train, which is difficult for people to feel.

With the increase of train speed, if the two rails are not smooth, accidents are likely to occur, which is why the speed of high-speed rail reaches 300Km/h, the basis is very stable, mainly because the elevation and horizontal error of the two rails are controlled within the range of 0.5mm, and the stability of the line is quite high.

In Chu Jianghe's view, the speed of 60km/h is still too low, even if the two rails are uneven, at most make passengers feel uncomfortable, but there will be no rollover.

Coupled with the radius of the three curves just passed, either 1200m, or 800m, this kind of curve radius is relatively large, and the curve is relatively slow, once the curve radius is about 250m, and then increase the speed when passing, there may be problems.

With the sound of passing through the curve from the intercom, everyone reacted that the train had passed the curve section, and then entered the straight line section.

"It seems that there is a certain error not only in the gauge of the line, but also in the elevation. Zhao Zongrong said.

In the past, due to the low driving speed, the railway workers worked, and when the line was renovated, especially in the curved section, the requirements may not be too high, and the freight train did not feel discomfort due to the low speed when it was running.

Now, with the increase in speed, some hidden problems are revealed.

"It seems that in the future construction of the line, we must raise the requirements and try to keep improving, and now the speed of the train is only 60km/h, and once it reaches 120km/h, there will definitely be problems. Li Duanchang of the public works section also spoke.

As for how high the requirements are, Li Duanchang can't say, he just has rich experience in on-site construction, and now he uses the construction experience he has accumulated before to analyze the problem, and he doesn't know much about professional knowledge.

"It's also possible that there is a problem with the stability of the track bed. Zhang Haipeng added at this time.

"Mr. Zhang, if it is the use of wooden sleepers, there may be this problem, but the Shentan Railway Shencheng section has been replaced with concrete sleepers, and the use of elastic fasteners, in my opinion, the stability of the track bed has been guaranteed to a certain extent, should not be the main reason. Li Duanchang opened his mouth to explain at this time.

When using the wooden sleeper, because the wooden sleeper is exposed to the sun and rain, the damage is quite common, which causes the sleeper to be stressed unevenly, and in the process of train driving, the impact effect on the sleeper is uneven, resulting in the carriage swinging, and this situation does occur.

However, after the use of concrete sleepers, the occurrence of this situation is significantly reduced, and the spring fasteners on the concrete sleepers are strong, which can firmly fix the sleepers and rails together.

Regarding Li Duanchang's words, Zhang Haipeng actually knew that when he heard the other party say this, he didn't know how to refute it, so he didn't speak.

"Well, for this problem, it still needs to be studied, anyway, today and tomorrow, it will be a trial operation, and there will be a chance to return to the Shenzhen market in the afternoon, and then all the data will be collected, and then go back and analyze it well." At this time, Zhao Zongrong spoke.

As soon as Zhao Zongrong spoke, Zhang Haipeng and Li Duanchang did not continue to argue.

The train continued to move forward at a speed of 60 km/h, which was not slow in 1986.

"Accelerate to 80 km/h. At this moment, Zhao Zongrong spoke.

A whistle sounded, and everyone felt the train twitch, and the speed began to increase, and the trees outside the window retreated at a faster speed.

Ahead, there is a straight section of eight kilometers, after this straight section, it is a curve with a radius of 1200m, and then it enters the longest straight section of the Shentan Railway in the Shenshi area, a full twelve kilometers!

Soon, the speed reached 80km/h, and Chu Jianghe put his hand on the table and felt the vibration brought by the train.

"You can also accelerate to 100 km/h. At this moment, Chu Jianghe suddenly said.

At this point, everyone in the carriage looked at Chu Jianghe, and they all showed surprised looks, and everyone looked at Chu Jianghe with different expressions, and many people thought that Chu Jianghe was talking nonsense.

The corners of Zhang Haipeng's mouth showed a sneer, and he was about to speak, when Zhao Zongrong suddenly said: "Accelerate forward and increase the speed to 100km/h!"

He didn't even ask Chu Jianghe for the reason, so he ordered to speed up.

Woo~~~

A long whistle sounded, and the carriage was pulled by a huge force again, and the speed of travel was improved again, and this time everyone clearly felt that the speed of the train was constantly accelerating!

"The train has reached a speed of 100km/h, and there is still a straight section of five kilometers ahead, and then it enters a 1200m curved section, and the report is completed. Inside the walkie-talkie, the voice of the driver in charge came.

In the carriage, everyone was silent, feeling the feeling brought by the increase in the speed of the train, after a long time, Li Duanchang said: "The train runs quite smoothly in the straight section, and it seems that the stability of the concrete sleeper on the train has been greatly improved. ”

"The locomotive in the straight section does not sway and vibrate much, and it is really possible to increase the speed to 120 km/h in the next straight section. Sun Duanzi of the train depot also spoke at this time.

Hearing the words of the two section chiefs, everyone looked at Chu Jianghe, because just now he suddenly said that the speed would be increased to 100km/h, everyone originally thought that this would be too reckless, but they didn't expect that after the increase to 100km/h, the train would still run relatively smoothly.

"Jianghe, tell me your reason for speeding up. Zhao Zongrong saw that everyone was looking at Chu Jianghe with questions, so he spoke directly.

Chu Jianghe smiled slightly and said: "Actually, the reason is very simple, after the driving of these sections just now, I found that this straight section, whether it is the swing or vibration of the carriage, is much smaller, that is to say, the smoothness of this section of the line is very good, so I think it is no problem to increase the speed to 100km/h." ”

Chu Jianghe's explanation has a certain amount of truth, but it also seems very reluctant, because he is only judging according to his feelings and experiences just now, and there is no basis.

Having said that, in fact, the real situation is that in Chu Jianghe's view, the straight section of the concrete sleepers and elastic bar fasteners has been replaced, as long as the locomotive traction power is sufficient, the smoothness of the line meets certain requirements, and the train speed is increased to 100km/h, which is not a problem at all.

Everyone couldn't help but break out in a cold sweat, even Zhao Zongrong glanced at Chu Jianghe, originally thought that Chu Jianghe said it so naturally, how sure he was, but he didn't expect it to be judged only based on his own experience.

However, fortunately, after the speed was increased to 100km/h, the driving was quite stable, and there were no problems, but it succeeded, which made Zhao Zongrong feel a little excited.

"It seems that Jiang He, you are by mistake. Li Duanchang laughed.

"I'm telling the truth, I can't help but speak later, Zhao Ju, don't do what I say, I won't be responsible for any problems. Chu Jianghe said half-jokingly.

While everyone was talking and laughing, they were getting closer and closer to the curve ahead.

"It's a curved section ahead, and I think I need to slow down before I get into a curved section, otherwise I'm afraid something will go wrong. Zhang Haipeng interrupted everyone.

From the call just now, we can know that Zhang Haipeng takes his time according to the support, especially when passing through the curve, the speed should not be too high.

"Mr. Zhang, I think we can try it, if the straight section has to drive 120km/h, and the future has to drive 160km/h, then the curved section, the minimum speed should also meet 100km/h. Li Duanchang retorted.

"I also agree with Li Duanchang's opinion, if you really want to achieve a maximum speed of 160km/h, not to mention 100km/h in the curved section, even 120km/h, it is not too much. Chu Jianghe also echoed.

In fact, in Chu Jianghe's view, as long as the design conditions are met, within the allowable range of error, the straight line and the curve section, driving at the same speed, can be completely achieved.

In the future generation of high-speed rail, whether it is a straight line or a curved section, the driving speed is the same, and the reason why it is not possible in 1986 is because of technical and other reasons, the speed of the curved section is limited. In addition, the standard requirements of railway lines are far less high than those of high-speed rail, and the measuring instruments cannot meet the requirements of high-speed rail, so that the curved section can also reach the speed of the straight section.

Hearing the words of the three of them, Zhao Zongrong groaned slightly, and said, "Keep the current speed!"

As Zhao Zongrong's order came out, the train moved at a constant speed, and the atmosphere in the carriage became solemn, and many people grabbed stools or tables with their hands, waiting for the train to enter the curved section.

Woo~~~

A flute sounded, and the train entered the curved section at a speed of 100km/h, this time, Chu Jianghe clearly felt the strong vibration of the train, but the swing of the carriage was not very serious.

Chu Jianghe grabbed the table with one hand, his eyes moved back and forth on the watch and drawings, and everyone in the carriage, obviously silent, was feeling the train passing through the curved section quickly.

I don't know how long it took to drive, Chu Jianghe said: "Zhao Ju, speed up, there is a straight line in front, continue to increase the speed, and see how much you can run!"

"Accelerate now?" This time, not only Zhang Haipeng wanted to refute, but even Zhao Zongrong and Li Duanchang and others were also given a piece of Chu Jianghe's suggestion.

"Jianghe, it's still in the curved area, just speed up?" Zhao Zongrong frowned slightly, he didn't know why Chu Jianghe suddenly suggested speeding up, and he didn't let people implement it at the first time.

"Ridiculous, no matter how fast you spend, you have to have an accident!" Zhang Haipeng was stunned, with a hint of anger and disdain.

Obviously, he is quite not optimistic about Chu Jianghe's suggestion, not only him, but many people in the carriage are not optimistic, because I already knew just now that Chu Jianghe was completely nonsense and had no technical basis, and now he is talking again, who knows if he will still be so lucky.

"Speed up, drive at full power, I don't think it's a big problem!" Chu Jianghe ignored everyone's words and said again, but his eyes did not leave the watch and drawings.

Zhao Zongrong was slightly stunned, he glanced at Chu Jianghe deeply, exhaled, as if he had made some major decision, and did not say how much he accelerated, and said directly: "Drive full horsepower and accelerate forward!"

Woo~~~

Bang dang ~~~

Under a strong traction, the train is like a beast, roaring, the speed is constantly improving, the scenery outside the window, quickly retreating, the speed of the train, is constantly improving!