At 5:50 p.m., the trial operation train stopped next to the No. 1 platform in Shenzhen, the door opened, and Zhao Zongrong stepped off the train with a gloomy face. Pen, fun, pavilion www. biquge。 info

Just now, when the train was going from Chutan City to Shenzhen, after entering the Shencheng section, at the request of everyone in the carriage, the train accelerated rapidly.

Eventually, when the train entered 110km/h, it entered a curve, and when the curve was about to end, it was about to increase its speed again, but the train suddenly vibrated and swayed violently.

If the train driver hadn't slowed down in time, it would have become an accident, and even the car would have overturned, making everyone break out in a cold sweat!

For the next part of the journey, the train was moving at a speed of 60 miles, and no one dared to say anything about speeding up, which is why they returned to the Shenzhen Railway Station so late.

After getting off the train, everyone did not have the excitement of increasing the speed to 130km/h, but with anxiety, because the trial operation in the afternoon has exposed that there are still some problems that need to be solved on the line, otherwise, even if the electrification transformation is completed, the speed of the train may not be able to reach the goal.

"Immediately inform Chu Jianghe and ask him to come to see me overnight!" Zhao Zongrong gave such an order.

For Zhao Zongrong's order, everyone was a little confused, I don't know that at this time, Zhao Zongrong didn't see some experts on the railway, but wanted to see Chu Jianghe? But seeing that Zhao Zongrong was angry, he didn't dare to ask more, and hurriedly asked people to contact Chu Jianghe.

The reason why Zhao Zongrong is so eager to see Chu Jianghe is very simple, that is, what Chu Jianghe said to Zhao Zongrong before leaving.

Before Chu Jianghe left, he reminded Zhao Zongrong and asked him not to raise the speed too high, at that time, Zhao Zongrong didn't care much, thinking that Chu Jianghe said it on purpose, but now it seems that Chu Jianghe is obviously not a mouthful!

Obviously, Chu Jianghe must have his reasons for saying this, otherwise, he would not have specifically told Zhao Zongrong about this.

That's why Zhao Zongrong was so eager to see Chu Jianghe, and wanted to know the reason why the other party said this from the other party's mouth.

However, when Chu Jianghe was notified by Zhao Zongrong, he was quite depressed, because he happened to be dining with Li Lingyue at a restaurant in Chutan City that often ate, and Wang Guangyuan suddenly found him.

In the end, Chu Jianghe had no choice but to take Wang Guangyuan's car and return to Shenzhen from Chutan City.

When Chu Jianghe walked into Zhao Zongrong's office, it was already nine fifty in the evening, and Zhao Zongrong still didn't rest.

I saw that in the office, there was smoke and quite choking, if it weren't for Chu Jianghe, who was also an old smoker, I am afraid that he would have been choked away.

"Bureau Zhao, you are so anxious about me, is there anything wrong?"

When Wang Guangyuan brought himself to Shenzhen, Chu Jianghe asked Zhao Zongrong why he was looking for himself, but Wang Guangyuan didn't know, he only knew that Zhao Zongrong was in a hurry to find Chu Jianghe, and he didn't know anything else, so Chu Jianghe had to give up.

"Sit. Zhao Zongrong said with a flat expression.

Seeing Chu Jianghe sitting on the sofa smoking, Zhao Zongrong snuffed out the cigarette butt in the ashtray and said, "Say, how do you know that when the train returns to Shenzhen, the speed cannot exceed 100." ”

"Can't it exceed 100?" Zhao Ju, what happened?" Chu Jianghe said very puzzled.

Although he knew in his heart that Zhao Zongrong was so eager to see him, something must have gone wrong, at first Chu Jianghe thought that there would be an accident, but when he saw Zhao Zongrong, Chu Jianghe felt that this was not very likely.

In this way, Chu Jianghe was directly stunned, and he didn't know what was going on at all.

"In the afternoon, the train reached a speed of 110km/h, at this time it just entered the curve section, when it was about to go out of the curve, we also wanted to follow your example, increase the speed to 120km/h, at this time, the train almost overturned, fortunately, the driver slowed down in time, otherwise, there would be an accident!" Zhao Zongrong said slowly.

Hearing Zhao Zongrong say this, Chu Jianghe was also stunned, and then frowned and said: "Zhao Ju, is the radius of the curve you pass through 250m?"

Hearing Chu Jianghe say this, this time it was Zhao Zongrong's turn to be surprised, and he said a little incredulously: "How do you know?"

Obviously, in the afternoon, Chu Jianghe didn't follow, and he actually learned about the situation at the scene, which surprised Zhao Zongrong.

With Zhao Zongrong's affirmation, Chu Jianghe basically had a score in his heart.

On the railway, the curved line, the outer rail has a certain superelevation, and the faster the train travels, the greater the superelevation.

And the smaller the radius of the curve, the larger the superelevation will be when the train speed increases.

The original design average speed of the Shentan Railway was 60km/h, so the excess of the curved area must have been designed at this speed.

Although the replacement of sleepers in the deep urban section was completed, the superelevation of the curved section was not modified.

The main reason is the speed problem, when the design institute designed this electrification line, even after the transformation, the speed did not think to exceed 120km/h, up to 80km/h, which is very good.

The speed is increased by a third, and for ultra-high curves, only a fine adjustment is required.

However, when the speed is doubled from 60km/h, the ultra-high curve must be redesigned, in this case, in the place with a large curve radius, the response is not obvious, and in the small curve radius section, the exposure is quite obvious.

Obviously, during the trial operation this afternoon, it was precisely for this reason that the car almost overturned, but fortunately, everyone was killed, otherwise, there would be another accident.

"It's very simple, this should have something to do with the ultra-high curve, now the electrification of the Shencheng section has completed the sleeper replacement work, but the ultra-high curve is still the previous value, and now the speed has increased by a cup, Zhao Ju, do you think the current curve is exceeded, can it still meet the requirements of the train speed?" Chu Jianghe asked.

Listening to Chu Jianghe's explanation, Zhao Zongrong suddenly became enlightened, this problem is very easy to consider, but Zhao Zongrong ignored the design, thinking that the sleeper was replaced, and the curve was super high, but he didn't expect that the original curve was super high.

"It's that simple?" Zhao Zongrong said after a moment of silence.

"Of course, there is more than this factor, after today's experience, I found that if you really want to drive on the existing line, the speed of 160km/h, it is not that it can't be done, but it will take a lot of effort, and the accuracy of some projects must be further improved, and strict specifications and requirements must be formulated, otherwise there will be great potential safety hazards!" Chu Jianghe said solemnly.

"Jianghe, you speak slowly!" Seeing that Chu Jianghe was about to express his opinion, Zhao Zongrong persuaded.