Chapter 128

"Me. In the second row of the conference table, an old engineer with gray hair raised his hand and replied, "I have a problem." ”

Zheng Chun stretched out his hand and gestured, "Please speak." ”

"What I want to ask is, at the shield tunnel in the northern section of the Bohai Strait, will the tidal action affect the waterproof performance of the joints of the segments?" said the old engineer slowly.

Waterproofing is an extremely important point for the undersea tunnel.

Whether it is a sunken tunnel or a shield tunnel, waterproofing at the joints is extremely critical.

However, the difference is that the joints of the buried tunnel are only at the junction of the tunnel tubes, while the shield tunnel is between the segments of the tunnel where the tunnel is built.

The gaps are long and numerous, and the number of rubber gaskets required is large.

Therefore, this old engineer took out the shield tunnel for discussion.

"What do you think?" After the old engineer finished his question, Zheng Chun, who was sitting on the rostrum, squinted his eyes and looked at everyone.

According to my conjecture, the tidal action should have an impact on the waterproof performance of the joints of the shield tunnel segments, but how big the impact is, and how much rubber gasket should be used to resist water pressure, I can't give a direct answer to this, and it must be calculated. An expert in marine engineering, after a few seconds of silence, replied.

"Then how about handing over this task to Professor Lu?" Zheng Chun said with a smile.

Professor Lu smiled bitterly and shook his head, "Zheng Gong, I have just been assigned by you a problem of the impact of a strong earthquake zone on the tunnel structure, and the problem in front of me is extremely complicated, I really ...... The doppelganger is lacking!"

Zheng Chun knew that Professor Lu was telling the truth.

The current problem of the impact of tidal action on the waterproof performance of the segment joint is indeed extremely tricky.

He glanced at the crowd in the audience, "Has anyone volunteered to take on this task?"

No one responded.

One reason is that this is a really difficult question.

But the most important reason is that in the meeting just now, most of the high-level experts in the participants were assigned tasks by Zheng Chun.

If you want to take on this task again, there is no guarantee that it will be completed in a short time.

And the remaining specialists, who are of mediocre strength, do not have the confidence to complete this task.

The atmosphere fell silent for a moment.

Looking at the silence below, Zheng Chun didn't seem to be surprised at all.

He didn't force someone to complete it, but shook his head lightly and said, "In that case, then this task ......"

Just as he was about to say that this problem would be solved by him personally, a voice came from behind,

"Wait a minute!"

Everyone turned their heads to look, and saw a young and handsome young man sitting in the corner of the back row.

Zheng Chun looked at Gu Lu with an inquiring gaze, and his expression was not shocked.

Gu Lu smiled harmlessly and said to Zheng Chun, "Zheng Gong, why don't you let me try this question, how about it?"

Zheng Chun's eyes flashed with surprise, and he said, "You want to try?"

"Yes. Gu Lu nodded heavily.

"Are you sure?"

"Yes, but not much. ”

"It's an engineering problem. ”

"But for me, it's more like a math problem. ”

A math application problem.

Gu Lu silently added this sentence in his heart.

Zheng Chun was thinking.

Fingers kept tapping on the table.

However, Academician Li, who was sitting in the first row, was the first to speak.

Academician Li turned his head and glanced at Gu Lu with deep meaning, "I think this task can be tried by Gu Lu." ”

Academician Guo smiled and said, "We want to give young people more opportunities." I agree with Academician Li's proposal and let Gu Lu try it. ”

"I think so. ”

"I agree. ”

Thirteen academicians, including Academician Guo, successively seconded Academician Li's proposal.

Some experts in the back row were stunned, staring at Gu Lu in a daze.

Who is this young man, and what is his relationship with the 14 academicians?

Why did the fourteen academicians speak for him one by one.

Everyone's doubts came to their hearts one by one.

On the side of the rostrum, Zheng Chun also wants to pass.

Regardless of whether Gu Lu has the ability to solve this, there are fourteen academicians standing behind him.

With their cherishing talents, it is unlikely that they will sit idly by.

Handing over this task to Gu Lu can be said to be not much different from handing it over to fourteen academicians.

Then what else is there to worry about!

Zheng Chun directly waved his hand, "Okay, since the academicians said so, this problem will be solved by Gu Lu." ”

Gu Lu's eyes froze, "Guarantee to complete the task." ”

"Wait a minute. One of the experts couldn't sit still and raised his hand to speak.

"I don't know what Professor He is going to say?" Zheng Chun's flat gaze had a hint of sharpness.

Professor He wanted to point to Gu Lu and ask why Zheng Chun entrusted such an important task to a young man.

But he knew that if he said this, he would completely make enemies with the fourteen academicians and Zheng Chun, the future academician, so he changed his words.

"Zheng Gong, I also want to try to solve that problem, I don't know if it's okay?" Professor He asked politely with a smile.

"Then why didn't you raise your hand when I asked just now?" asked Zheng Chun.

Of course I don't have faith!

Although Professor He is a professor, his professional strength can only be regarded as below average among the more than 100 experts present.

He doesn't have the confidence to solve this tidal problem in a short time!

But since Gu Lu, a young man, has taken on this problem, it would be too cheap for him to use his lack of confidence as an excuse.

So Professor He hesitated for a long time and didn't say anything.

Zheng Chun didn't ask, but said lightly, "Since Professor He wants to try, then just do it." ”

"This question about the waterproof performance of tidal action on the joint of the shield tunnel segment is handed over to Gu Lu and Professor He. Zheng Chun looked at Gu Lu and then at Professor He, "If the two of you solve this problem first, it will be better for someone to explain it to us." ”

"So, that's the end of today's seminar, adjourned!"

At the end of the fifth day of the seminar, everyone left.

After lunch, after Gu Lu sent Academician Guo back to the hotel, he went back to the Bohai Sea Hydrology Research Center, and found the director of the research center to directly copy a copy of all the tide levels and their corresponding time information of the Bohai Sea tides since they were recorded.

In addition, Gu Lu also copied all kinds of data on the rocky topography of the Bohai Sea.

Then hurried back to the hotel, turned on the computer and got busy.

............

"Still can't do it!"

At night, Gu Lu rubbed his somewhat swollen eyebrows, shook his head and smiled bitterly.

From two o'clock in the afternoon, he has been busy until ten o'clock in the evening.

However, the situation is not very optimistic for Gu Lu.

In Gu Lu's vision, he wanted to establish a longitudinal equivalent stiffness model of the tunnel, and obtain the distribution of the longitudinal bending moment and axial force of the tunnel under tidal load by applying the head pressure corresponding to different tidal level differences.

But Gu Lu encountered a lot of resistance, and was stuck by many problems one after another, but he couldn't think of a solution.

The current Gu Lu is in a state of blockage of ideas.

"Sure enough, at my current level, it's still a bit too reluctant to challenge a question of such difficulty. Gu Lu showed a bitter smile.

But just when Gu Lu was about to give up, closed the computer and was about to go downstairs for dinner......

In my head, there was a sudden clinking.

。 m.