"I think the first step should be to get in touch with the design institute and make appropriate changes to the previous design, especially in terms of driving speed, which is no longer limited to 80 km/h, but must be increased. While the speed of pen ~ fun ~ pavilion www.biquge.info increases, the curve elements cannot be set in stone, and the curve elements must be corrected according to the actual situation. "The Chu River channel.

For this point, in fact, Chu Jianghe has always wanted to mention, but has never found the opportunity, if it were not for this opportunity, Chu Jianghe may have to wait for the time to change the 60 rails, in Chu Jianghe's heart, he also thinks so, because when the sleepers are replaced, it is not the last renovation of the line.

In addition, this trial operation came too suddenly, under normal circumstances, the trial operation is after the electrification transformation, the speed of the test is carried out, and the data in the process of train driving is collected for analysis and research.

Now that Zhao Zongrong mentioned this, Chu Jianghe didn't hide it, and said it directly.

Once the design institute modifies the curve elements, and the next time the 60 rails are replaced, it can carry out the ballast operation of lifting the road to supplement the ballast on the curve section, and the curve is super high, and the one-time adjustment is in place, so that when the train passes through the curve, the speed limit is much smaller.

"It's easy to talk about this matter, I can contact the design institute here, and as for the specific speed of each curve, we need to further discuss. Zhao Zongrong said.

"There's no need to discuss, in my opinion, you just give a speed range to travel, and the design institute can do it. "The Chu River channel.

Zhao Zongrong was not very clear about these technical knowledge, and he was also skeptical of Chu Jianghe's words, but seeing that what Chu Jianghe said was the way and looked like it, he finally had to nod and prepare to hand over this matter to the technical personnel to solve.

"The second point, to the whole line, a refurbishment, I said the renovation, is to strictly control the gauge and elevation of the line, especially the elevation, the height difference between the two rails, should be about the same as the design value, and even to the millimeter error to control, as long as to ensure such a high precision, in order to ensure the safety and stability of the car. Chu Jianghe said solemnly, after all, after the transformation, to run the bus, safety must be guaranteed.

This problem, in today's trial operation, not only Chu Jianghe, even Zhao Zongrong has felt it, the swing and vibration of the train, when passing through the curve, it is obvious that it can be felt, if this problem is not solved, the line transformation is completed, once the speed is increased to 160km/h, Chu Jianghe is worried that something will really happen.

"Zhao Ju, today's trial operation, you have also experienced it, especially when passing through the curve, the feeling of sitting in the carriage, you also know that the existing line, if the speed is increased to 160km/h, do you think it is safe?" Chu Jianghe said lightly.

In fact, there is no need for Chu Jianghe to explain, Zhao Zongrong has results in his heart, especially when he returned to Shenzhen from Chutan City in the afternoon, he almost overturned when he passed through the curved section at a speed of 110km/h.

Obviously, Zhao Zongrong has realized that there is a problem with this line, and even if the renovation is completed, it is still unknown whether the maximum speed can run to 160km/h! Otherwise, Zhao Zongrong would not have been so eager to summon Chujianghe to Shenzhen City for questioning.

The main reason is that the foundation of the Shentan Railway is thin, and even if all aspects are transformed, they may not be able to bear such a high train speed.

After this incident in the afternoon, Zhao Zongrong no longer had the luxury of expecting that this line could run at an average speed of 160km/h, he just wanted to see if he could break through this maximum speed after the transformation, which was his purpose.

It is also possible that after breaking through 160 km/h, the next train will travel at a speed of 120 km/h or less.

"The whole line is renovated?" Zhao Zongrong frowned.

"Yes, in fact, it's not troublesome at all, isn't it possible to start changing 60 rails next month? You can follow a group of people behind the rail car, after changing a section, renovating a section of the line, and adjusting the elevation error of the two rails to the minimum in the straight section, as for the curve section, contact the design institute as soon as possible, so that they can give a series of data such as the curve super high, and when the rail is replaced, the curve can be dialed well, so that it can avoid doing a lot of useless and reducing a lot of trouble. "The Chu River channel.

"It seems that the speed of 160km/h is not so easy to break!" Zhao Zongrong sighed.

Zhao Zongrong originally thought that as long as the new concrete sleepers and fasteners were replaced, plus the replacement of 60 steel rails, the train could run to 60km/h, but now it seems that all this is not as simple as imagined, and there is still a lot of work to be done.

"Zhao Ju, you are breaking the domestic record, if this record is so easy to break, it would have been broken long ago. Chu Jianghe pouted.

In the 80s of Chujianghe's previous life, it is not that the Ministry of Railways did not have the strength to let the train run into 160km/h, but the degree of attention, not only the Ministry of Railways did not pay attention to it, but even the country did not pay enough attention to the speed of railway operation, so it led to the postponement of the first railway speed increase until 1997.

Zhao Zongrong's eyes flashed, he glanced at Chu Jianghe, and said: "Jianghe, look at what you said is the Tao, where did you learn this knowledge, you know more than the chief engineer of our bureau." ”

Chu Jianghe looked stunned for a moment, and then his face did not change, and said: "Director Zhao, do you really think that I opened two companies for survey and design, and those old experts I invited were all dry food, and they taught me a lot of things.

There is absolutely nothing wrong with pushing all the problems that cannot be solved on the experts invited by those companies, after all, these people are Taishan Beidou in the railway industry, and it is understandable to teach this knowledge to Chu Jianghe.

When Zhao Zongrong heard this, he didn't ask any more questions, he felt that this possibility was more likely, after all, Chu Jianghe was not born in the railway system.

"Zhao Ju, there is one more thing I want to explain to you, after the electrification transformation, even if the train speed exceeds 160km/h, I suggest that the normal operating speed in the future should not exceed 120km/h. "The Chu River channel.

"Don't exceed 120km/h?" Zhao Zongrong looked at Chu Jianghe, took a puff of cigarette, and spit it out, very puzzled.

"The reason is very simple, after the electrification is completed, because the line has just been renovated, whether it is the gauge or the elevation, the error is very small, and the train runs 160km/h on it at this time, I have no objection, and the problem is not big. With the passage of time, it is still running at high speed on the line, and the line is no problem, and it can withstand the friction from the train, but have you ever thought about whether the roadbed under the line can meet the requirements? When the new railway is built, especially the acceptance standard of the roadbed, it is not high, and the design speed when it is newly built is not high, so there has been no problem with this line. Speaking of this, Chu Jianghe paused and continued: "Now that you have nearly doubled the speed, the impact on the line is absolutely fatal, and in the long run, the line settlement must be very powerful, and it is obviously unrealistic to continue to maintain high-speed driving." ”

This problem is also a reality that has to be faced.

The main reason why in the 21st century, the Beijing-Kowloon Railway has to be repaired and repaired all year round is that when designing the Beijing-Kowloon Railway, the design standard is not high, and the construction period is too short, and the construction period is serious, resulting in many potential safety hazards after the completion of the Beijing-Kowloon Railway.

The reason for all this is that the standard of the Beijing-Kowloon Railway is not high when it is designed, which is equivalent to a thin foundation, just like a building, if the foundation is not laid, you want to build a 100-story building, which is unrealistic, this is the fatal wound of the Shentan Railway!

Even if this building is built under some external conditions, sooner or later there will be problems under various pressures.

If we really want to change this status quo, only by replacing all these foundations, laying a new foundation, relaying the foundation of a high-rise building, and then building a high-rise building, can the safety of this building be guaranteed.

This is like high-speed rail, because when it was designed, the starting point was high, and many problems that could not be solved could be directly smashed with money.

Now this is the case with the Shentan Railway, after the line is renovated, the speed will be increased to a certain height in a short time, Chu Jianghe does not object, but it can maintain this speed for a long time, but it is not recommended by Chu Jianghe.

Of course, if you really want to do this, it is not impossible, it is nothing more than to increase the investment in later maintenance, once there is a problem with the line, it will be repaired, and this method will be used to make up for the lack of Shentan Railway!

Zhao Zongrong fell into deep thought, he had also thought about this question, and now Chu Jianghe raised this question, which made him have to think deeply, many questions are not as simple as he thought.

In fact, Zhao Zongrong also hopes that the Shentan Railway can maintain high speed, but the reality tells him that this probability is extremely low and almost impossible. Unless there is a major operation on the existing railway, which is even more impossible.

Because of the Chutan Railway Administration, it is impossible to spend a lot of manpower and material resources in order to ensure the speed of a line, which is unrealistic.

"I did take this into consideration, and the Shentan Railway is still mainly freight, there are very few passenger trains, and the requirements for speed are not high. Zhao Zongrong pondered for a moment and said.

"So in my opinion, the Shentan Railway is completely fine as a test section, even breaking the speed of 160km/h, but maintaining this speed for a long time is a problem. "The Chu River channel.

"Well, Jianghe, you're right, but our current goal is to break the running speed of domestic railways, and at the same time vigorously promote the new concrete sleepers and elastic fasteners you designed, as well as 60 steel rails, so that the country's railways can benefit!" Zhao Zongrong said.

Of course Chu Jianghe will not object to Zhao Zongrong's goal, no matter what, he is also promoting patents for himself.