"Dean Chu, this is the first 160km/h railway in China, and I think it is still not insured before the construction machinery is manufactured. Shen Hui sighed slightly, and finally spoke.

In fact, he was powerless to resist in his heart, but he still wanted to try it, because this line was not only important to other design institutes, but also to their three institutes.

"Dean Shen, don't worry, the drawings of the construction machinery have come out, because I haven't applied for a patent yet, so the drawings can't be taken out to show you, I hope you understand." "The Chu River channel.

In fact, even if he applied for a patent, Chu Jianghe would not be able to come up with a structural drawing of the construction machinery.

"Dean Shen, I think Dean Chu's words are reliable. Ma Xiao stood on the side of the Chu River.

"Didn't Dean Chu just say that there are two ways to strengthen the foundation? Why don't you listen to the other way. Then an old expert suddenly spoke.

Everyone was stunned for a moment, and then remembered that Chu Jianghe had indeed said just now that there were two methods for foundation reinforcement, just because everyone listened to Chu Jianghe's first cement mixing pile method, and they didn't think of the second method for a while.

"That's it, Dean Chu, can you talk about the second method?" said an expert from the Second Academy.

Not only him, but even other experts showed curiosity.

Zhao Zongrong, Li Tao, and Liu Feng glanced at each other, Zhao Zongrong and Liu Feng smiled at the corners of their mouths, but Li Tao looked confused.

Zhao Zongrong and the others didn't expect Chu Jianghe to be so well prepared, once the two reinforcement methods can be adopted, then there is no doubt that the Design Branch of Chutan Railway Bureau will win the design right of this railway.

As for Li Tao, he had a puzzle in his heart, although Chu Jianghe was half of the people of the Chutan Bureau, he also hoped that the Design Branch of the Chutan Railway Bureau would win the design rights of the railway.

Fact-seeking to be honest, before the bidding, Li Tao still felt that the probability of the Third Survey and Design Institute winning was greater, and as for the Design Branch of the Chutan Railway Bureau, it was at most soy sauce.

After all, how does a newly established design institute compare with an old railway design institute?

But the result was somewhat unexpected by Li Tao, the design institute that was the most unlikely to win the railway actually became the most likely to win the bid!

"In fact, the second method is similar to the cement mixing pile, and the second method of foundation reinforcement is called pipe pile reinforcement. Since everyone wanted to hear it, Chu Jianghe didn't hide it, and opened his mouth to explain.

"Pipe pile reinforcement?" the most expert was directly confused.

For the first time, they discovered that there were new terms in railway design that they had never heard of.

"What kind of reinforcement?" someone asked.

"Let me make an analogy, we all know the poles, the pipe pile is also such a thing, but it is much harder than the telephone pole, we use machinery, the pipe pile is driven into the ground, according to the depth of the bearing layer, we drive how long the pipe pile, used to strengthen the foundation, row after row of pipe piles, together to increase the bearing capacity of the foundation. Chu Jianghe explained simply.

Although what Chu Jianghe said is simple, there are many procedures to be done in the middle, such as machinery manufacturing, pipe pile production, etc., which need to be done.

"This method is simple, isn't this a bridge pile foundation in disguise?" said the expert of the First Academy.

The pile foundation of the bridge is to adopt the method of concrete pouring, so that the pile foundation acts on the bearing layer, enhances the bearing capacity of the foundation, and resists the dynamic load brought by the train in the process.

Chu Jianghe's pipe pile is almost the same meaning, relying on the pipe pile acting on the bearing layer to support the dynamic load of the road base and the train.

"What if the foundation is too deep?" asked an expert.

Once the bearing layer is too deep, such as more than 20 meters deep, then the pipe pile is not suitable.

The scope of the use of pipe piles is obviously impossible to drive into such deep ground.

"Then use cement mixing piles, multi-row, relying on friction, not necessarily acting on the bearing layer, the same can increase the bearing capacity of the foundation. "The Chu River channel.

The reason why the method of pipe pile reinforcement is proposed is to avoid the deficiency of cement mixing pile reinforcement, and two methods are adopted, which complement each other and jointly reinforce the foundation of the roadbed.

"Dean Chu, don't tell me that the machinery for the construction of pipe piles has also been manufactured?" Ma Xiao half-jokingly.

"Mr. Ma, I won't tell you the truth, the mechanical manufacturing of pipe pile construction is much simpler than that of cement mixing pile, because I use the hammering method of construction, so there is not much difficulty in mechanical manufacturing. Chu Jianghe said and continued: "Recently, I have contacted the German ZF company, and the machinery should be able to be manufactured soon. ”

Subsequently, some old experts asked a series of questions, and Chu Jianghe answered them one by one, which made everyone very satisfied.

Shen Hui sat in the audience, his face was cloudy, as more and more experts asked questions, and even the three institutes also asked questions, Chu Jianghe coped with it easily, Shen Hui knew in his heart that the design right of this line was directly taken away by Chu Jianghe, the design institute.

He never expected that Chu Jianghe was so well prepared, not only in terms of budget, but also in the design and manufacture of construction machinery.

It can be said that Shen Hui was convinced, and in the face of Chu Jianghe's design, he could only admit defeat, and he couldn't even find a reason to refute it.

If he refutes, he must present evidence, otherwise it will be difficult to convince the public!

"In addition, I would like to mention a few bright spots, firstly, in these three months, for some places, we went to the field geological survey, got first-hand information, so to speak, our budget, relatively speaking, has changed very little. "The Chu River channel.

The reason why I went to carry out geological exploration was to convince other design institutes and make them more reasonable, and at the same time to reduce the pressure on Zhao Zongrong's side.

After all, the Design Branch of Chutan Railway Bureau is a subordinate design institute of Chutan Railway Bureau, and if you want to adopt the design scheme of Chujianghe, there is no convincing enough design, even if Chujianghe wins, it will make people gossip.

"The second point, I just heard the institutes talk about the minimum curve radius, everyone's minimum curve radius, the smallest is 800m, and there are 1200m. Mr. Qiao Tianhong once said that in the past few years, a seminar was held specifically for the minimum curve radius, and it was determined that the minimum curve radius of the railway with a speed of 160km/h should be more than 1200m. Chu Jianghe explained unhurriedly.

In this regard, some of the experts present also participated in that meeting, and the organizer of that meeting was led by a certain department of the Ministry of Railways.

Hearing Chu Jianghe say this, two of them with a curve radius of less than 1200m were directly dumbfounded, because they had made such a low-level mistake.

"After discussing with Mr. Qiao Tianhong, the minimum curve radius of the line designed by the Design Branch of our Chutan Railway Bureau is 1800km/h. "The Chu River channel.

"The minimum curve is 1800m, Dean Chu, will this be a bit wasteful, and in the end, it will increase investment. Someone in the audience questioned.

The larger the radius of the curve, the longer the length of the line will be, and the final cost of construction will increase!

"In fact, it doesn't add much cost, I think, the current goal of this line is 160km/h, but higher than 160? Have you ever thought that according to our company's design, the minimum curve radius of 1800km, can meet the maximum speed of 200km/h, although we now feel that running 200km/h is not realistic, but I personally think that when building, we should reserve some space, and it will be more convenient to speed up in the future. Chu Jianghe explained.

Many domestic railways are unable to increase speed in the end because of factors such as the radius of the curve, and even after the electrification transformation, the speed increase is not much.

Chu Jianghe, as a person who has come over in the design of the railway industry, must not tolerate such a low-level mistake, and his current idea is to leave as much room for improvement as possible to prepare for the later stage.

Because with the passage of time, the average speed of 160km/h cannot meet the driving requirements at all, the average speed of 200km/h, which is about the same, as for the construction of high-speed rail, it will take decades to say.

"Yes, I also agree with Dean Chu's words, if you can leave space, try to keep it. Zhao Zongrong nodded slightly, very satisfied with Chu Jianghe's speech.

I have to say that whether it is geological exploration or the minimum curve radius, these practices of the Chu River are indeed highlights.

Even cement mixing piles and pipe piles are the highlights of the design.

In the end, Chu Jianghe spoke for less than five minutes before ending his explanation.

The six design units have the longest time to explain to Chu Jianghe.

After the six design institutes came to the stage to explain, everyone basically had a bottom on the results of the bidding.

Li Tao coughed and said directly: "After the explanation of the design institutes just now, everyone must have the bottom of their psychology, if I say that the design branch of the Chutan Railway Bureau has obtained the right to design this railway, do the other institutes have any different opinions?"

After Li Tao finished speaking, he smiled at the corner of his mouth, looked around, and looked at everyone to see who had any objections.

"Our hospital has no opinion, and the design given by Dean Chu is convincing. The representative of the First House spoke.

I am afraid that this is the first time that these deputies have been able to convince themselves of defeat.

"No comment!" The representative of the Second Court made a statement.

"Dean Chu won the bid, and I have no opinion. Ma Xiao also said.

"The skills are not as good as people, no opinion. The person in charge of the four hospitals sighed.

In the end, Shen Hui of the Third Academy was left, originally the most promising third court to win the bid, but now he looked at it being taken away by Chu Jianghe, and he had to admit it to his face that his skills were not as good as others!

"What about the Third Courtyard?" Li Tao asked when he saw that Shen Hui didn't speak.

Shen Hui was slightly stunned, felt his face hot, sighed, and finally squeezed out three words: "No opinion." ”

Li Tao nodded with satisfaction and said, "Since everyone has no opinion, then, in this bidding, the Design Branch of Chutan Railway Bureau will obtain the final design right of this line!"

After Li Tao finished speaking, Zhao Zongrong and Liu Feng glanced at each other, with a smile on their faces, and Chu Jianghe also breathed a sigh of relief, he finally lived up to expectations and won the design rights of this line, and his efforts during this time were not in vain!