The Red Era, the Opening University Speech

Chapter 484 Mud and Water Balance
There is no problem in taking out the mechanical dogs and space-based kinetic weapons.

After all, no country in the world can make it.

But not others.

Because they can actually make it.

They can make it.

Emperor M and Big Brother can probably make it too.

So it is absolutely not allowed to be taken.

"Then I can only work on theory, preferably advanced theory." Li Mu thought secretly.

After a long time.

His eyes suddenly lit up, and he thought:

"How could I forget this? We can develop artificial intelligence!"

The concept of artificial intelligence appeared in the mid-20th century
The early foundation was the neural network paper published by Warren McCulloch and Walter Pitts in 43, which proposed the first mathematical model to describe how neurons work.

Later, Alan Turing published "Computing Machinery and Intelligence".

In this paper, he proposed the "Turing Test" as a standard for measuring machine intelligence, which has been used until now.

However, as a formal academic field and concept.

The term artificial intelligence was not clearly proposed and defined until the Dartmouth Conference in 56.

"Anyway, it's no longer a secret that computers can perform at a speed of 1000w times per second. It's time to shock Emperor M and Big Brother again!" Li Mu thought.

Current research on artificial intelligence.

It mainly focuses on symbolic methods, machine learning, natural language processing, robotics and cognitive simulation.

Take the symbolist approach, for example.

Its characteristic is to simulate human reasoning through symbolic logic and rules.

But complex reasoning requires a lot of calculations.

However, the memory of current foreign computers is extremely small, still measured in KB.

Not to mention the computing speed, which is estimated to have just exceeded 100 million times per second, and is still a long way from 1000 million times per second.

under these circumstances.

As long as Xia Guo promises that people can use the Type 02 computer freely after they arrive, there will definitely be people who can't resist the temptation and will come.

If we take out the Type 03 personal computer.

Then I'm afraid these people won't even have to think about it and will come over immediately.

“But artificial intelligence alone is not enough. It would be better if it could be linked with other fields.” Li Mu began to plan.

And that's easy.

There are so many areas that artificial intelligence can leverage.

……

Railway Technical Research Institute.

The Spring Festival is approaching.

However, the researchers are still fighting on their own fronts without any slackness.

After getting the plan.

Everyone in the institute, including Mao Yishen, has been working for nearly a month just to get the shield machine out as soon as possible.

The current results have lived up to their efforts.

In the conference room.

The shield machine development team is summarizing recent research progress.

According to the plan given by Li Mu.

They have basically completed the theoretical exploration of the cutterhead, soil compartment, propulsion system, segment assembly system, casing, sealing system, hydraulic system, control system and auxiliary equipment, and entered the experimental stage.

But the problem still exists.

For example, geological adaptability: different strata have very different design requirements for shield machines.

For example, the design of the cutter head and the cutter -

The cutterhead needs to withstand huge cutting forces and torques while ensuring efficient excavation. The cutter is easily worn in complex formations such as hard rock, sand and gravel.

Another example is the water and soil pressure problem in the strata.

……

Mao Yishen let the young researchers speak first, and then the old researchers.

He planned to start with the water and soil pressure problem in the strata, and solve the problems one by one from easy to difficult.

But after one round.

There are opinions from the public, but there is a lack of constructive ideas.

Hear the end.

He couldn't help but let out a long sigh.

Construction problems under complex geological conditions have always been a difficulty they have been unable to solve.

If not resolved.

Then there may be problems such as instability of the excavation surface, ground deformation and settlement, etc.

The most important thing is that it will affect efficiency.

According to Li Mu's plan.

The tunnel boring machine they build should have a digging speed of at least 15 meters per day.

However, the actual excavation speed is only 10 meters per day.

Although compared with the traditional construction method, it has been improved by 2 times or nearly 3 times.

But this is obviously not enough.

Think of this.

Mao Yishen picked up the wrinkled notes beside him and prepared to look for ideas from Li Mu's plan.

But that's it.

He suddenly noticed a pair of eyes staring at him.

He seemed to realize that he had been discovered.

The latter quickly looked away.

"Student Gao Jialin, do you have anything to say?" Mao Yishen called out directly.

Hearing this, everyone in the conference room immediately turned their eyes to the young man sitting at the back with goodwill.

Regarding this college student that Li Mu "stuffed" in.

They were a little disdainful at first.

After all, if you have the ability, why would you take such an unorthodox way to enter the research institute?

But later I found out that he was still a student, and just a freshman.

Everyone's attitude changed immediately.

It is not unusual to be a freshman, but what is unusual is that he can be valued by Li Mu and directly join a national-level research project such as tunnel boring machine.

Gao Jialin took a deep breath, stood up, and said:

"I was fortunate enough to receive advice from Consultant Li before, and he mentioned some of these issues."

“In fact, it is not difficult to stabilize the excavation surface and control the deformation of the bottom layer.”

“We just need to inject mud into the excavation surface and use the pressure and physical properties of the mud to balance the water and soil pressure in the bottom layer…”

His pronunciation was clear and powerful.

Until the last sentence was said.

There was immediate applause from below.

The idea is immature.

But in theory it is quite feasible.

It also incorporates some of the ideas they mentioned, which is quite brilliant.

Mao Yishen also clapped his hands happily and said:
"Well said, Gao Jialin, you are very talented!"

"You're too kind. This is all thanks to Consultant Li's guidance and the teaching of everyone in the institute during this period. And the theory is not perfect yet." Gao Jialin blushed.

Hearing this, Mao Yishen smiled and said:

"That's pretty good. You're a graduate of the Department of Mechanical Engineering, and you have such insights on this kind of geological problem. That's pretty good."

Hear his praise.

Gao Jialin subconsciously wanted to be humble.

at this time.

A voice suddenly sounded, agreeing:
"Dean Mao is right. It's rare for you to have such an insight. Don't be too modest."

Gao Jialin felt very familiar with the voice and turned around quickly, saying in surprise:
"Advisor Li!"

Everyone turned their heads and looked at Li Mu who suddenly appeared in surprise.

"Advisor Li, why didn't you tell us when you came? Let us get ready." Mao Yishen stepped forward and said.

Li Mu joked:
"What's there to prepare? There's no need to go through all this red tape. And I'm here to participate in the research, so I should be under your leadership."

"I am just a leader because of my age. I still need your help with research." Mao Yishen laughed.

Don't think that Li Mu is just a consultant.

But he had heard from Master Qian Wu that his status was definitely the best in Xia Country.

Not only has he registered with all the leaders above him, but he has also been received by his superiors many times.

That is, too young.

Otherwise, he would be absolutely qualified to become the president of the National Academy of Sciences.

Li Mu waved his hand and said:

"Stop joking and get down to business."

"I just heard you discussing how to solve the problem of stabilizing the excavated ground?"

"If you don't mind, I can expand on what Gao Jialin just said."

He just finished speaking.

Mao Yishen quickly pulled him onto the stage and said:
"I don't mind. How could I mind? You say, I'll go sit downstairs."

He hasn't finished speaking yet.

His people were already seated downstairs.

He also took out a pen and paper, as if preparing to take notes.

The rest of the researchers followed suit and hurriedly sat down to prepare for recording.

All of a sudden.

The conference room, which had just been bustling with heated discussions, was now as quiet as a university classroom.

The only difference is that the person standing on it is a young teacher.

Sitting below were a group of experts and professors in their forties and fifties.

"Advisor Li is so awesome!" Gao Jialin, who saw this scene for the first time, couldn't help but widen his eyes in disbelief.

You have to know that that was Mao Yishen!

Academician of the Chinese Academy of Sciences, civil engineer, and bridge expert.

Such an amazing person.

He was actually sitting there listening to the lecture like a student, just like him!

……

Li Mu looked at Gao Jialin with amusement.

From the shock in his eyes, it is not difficult to guess what he is thinking.

But there is no need to explain this kind of thing.

He picked up the chalk and began to explain the mud-water balance technology.
“In fact, the core of the method is to dynamically balance the formation pressure through mud pressure.”

“When the mud is injected into the excavation face, a mud film will form.”

"In this way, the pressure of the mud and the water and soil pressure in the stratum will maintain a dynamic balance, preventing the excavation surface from becoming unstable..."

As his explanation began.

The sound of "swish, swish, swish" of notes was heard below.

Gao Jialin quickly came to his senses and immediately started recording.

……

It took about an hour.

Li Mu and others from the Railway Technology Research Institute analyzed the basic principles of mud-water balance in detail.

As well as issues such as mud-soil mixing and transportation, mud proportioning and regulation.

Of course, the most important thing is the ideal working process of the shield machine under slurry balance.

Through mud injection, a mud film is formed and the formation pressure is balanced.

The shield machine cutter head is then used to cut the ground so that the debris is mixed with the mud.

The mud-soil mixture is then sent out of the tunnel using a reverse water pipe.

The discharged mud can also be recycled after being separated from the debris by processing equipment.

Finally, precast concrete segments are assembled at the tail of the shield machine to form the tunnel lining, which is used to support and reinforce the tunnel structure.

After he finishes speaking.

There was silence in the meeting room for a moment.

Immediately, warm applause broke out.

Everyone applauded and said:

"As expected of Consultant Li, so amazing!"

"Yes, the problem that has troubled us for a long time was solved just like this!"

"It would be great if Consultant Li could come over and give us guidance more often!"

……

Listening to everyone's praise and expectations in the institute.

Mao Yishen looked ahead with hope.

He knows it very well.

If Li Mu could help, it would definitely be of great benefit to their research.

Mud balance is not the end.

This is just the beginning. There is still a long way to go for the shield machine to succeed.

Thinking of this, he immediately said loudly:
"Advisor Li is indeed one of the leading scholars in our country and has helped us a lot."

"But don't be too greedy. Consultant Li is very busy, so it would be great if he could come once."

"The proposal was written by Consultant Li, and the mud-water balance problem was also solved by Consultant Li. If they all did this, what would we do?"

Mao Yishen said.

While observing Li Mu's expression.

This seems to be an explanation to everyone.

In fact, it was secretly arousing everyone's curiosity.

really.

Soon an expert said:

"So that's how it is. The director is right. We really can't expect Consultant Li to solve all our problems."

His words made most people in the conference room nod their heads.

But then.

Another professor said:

"That's true, but once in a while is fine."

As soon as the words were spoken, everyone looked at them in agreement.

There are some things they are embarrassed to say.

Li Mu's guidance once is equivalent to more than ten days or half a month of research for them.

If you encounter any problems.

This time may increase exponentially.

——There is a ready-made solution in front of you, why not take it?

Li Mu watched as everyone turned the topic to himself and looked at Mao Yishen helplessly.

Of course he could see through this little trick.

However, the latter obviously expected that he would not refuse.

And this is indeed the case.

He still hopes to complete the tunnel boring machine as soon as possible.

After all, only when transportation is convenient enough can the country develop rapidly and society become prosperous faster.

Li Mu raised his hand and said:
"I know what you mean. I will try to come and see more often in the future and try to help solve some problems until the shield machine comes out."

"Just fighting for it?" The people below were a little disappointed.

But Mao Yishen was quite satisfied when he heard this.

After all, Li Mu had clearly stated before that he would not interfere.

Now that Ken comes once in a while, it is already a huge breakthrough.

Besides, if there is one, there will be two, and if there are two, there will be three.

As long as the relationship is good, can people still run away?
……

After the meeting.

Everyone dispersed and continued their research.

The mud water balance was solved.

There are other problems.

After the shield machine failed.

Apart from eating and sleeping, all their attention is focused on research.

This is also the norm for scientific researchers in this era.

However, Li Mu, who saw this scene, followed Mao Yishen to his office.

I couldn't help but tease:

"Director Mao, I see that the comrades in your institute have dark circles under their eyes. Is it because they didn't get enough rest at night?"

side said.

He walked to the promotional posters posted in the office.

There is a set of rules for daily routine written on it with a brush.

——The proposal was made by the Chinese Academy of Sciences, approved by Qin Yun personally, and nodded by the superior leader personally.

Mao Yishen saw this, but did not say anything. He just sighed deeply and said:

"Everyone also wants to get the shield machine out as soon as possible."

"You may not know that in the mountainous areas of the southwest, there are many construction teams risking their lives every day."

"Professor Liu Huixian from PBC Polytechnic came back from the southwest and brought some bad news..."

He didn't finish his speech.

But what follows is self-evident.

To build our motherland and our homeland.

The construction team will not back down, nor is it willing to back down.

However, this also means that they have to continue construction at a huge risk.

Working under the conditions of backward technology and shortage of equipment.

Even with the guidance of engineers.

Accidents are still inevitable!

"Sorry." Li Mu looked at Mao Yishen, who had a gloomy expression, and apologized.

Mao Yishen shook his head and said:
"Advisor Li, you are right. This is a step that our country must go through."

"We have survived the war and the most difficult years."

"It doesn't matter if we are a little bit tired now, because we have hope in our hearts and the vision of building our great motherland!"

Every word he said carried weight.

Perhaps at the beginning, he really wanted to use this incident to plead with Li Mu and ask him to come over and help more.

But at this moment I think of those comrades who sacrificed.

Mao Yishen's eyes were slightly red and bloodshot, revealing a deep sorrow.

"Even if you say so, I still want to remind you to take some rest, otherwise I will complain to my superiors." Li Mu said seriously.

Hearing this, Mao Yishen was slightly stunned.

Just when he was lost in thought.

Li Mu walked to his desk and took out a pen and paper from his briefcase.

Seeing that Mao Yishen had not yet reacted.

He opened his mouth and said:

"I'm quite free today. If you have any questions, you can ask them all."

"By the way, I would also like to trouble you to call Gao Jialin over."

"This kid has great talent, but he lacks experience. If I teach him more, he will grow faster."

He was talking as he spoke.

While opening the chat page.

Then he quickly read through various construction machinery materials.

……

Starting from rock drills, to pneumatic drills, excavators, cranes...

Then there are some mechanical equipment that are ahead of their time.

For example, hydraulic breakers and laser measuring instruments.

Li Mudu briefly mentioned it during his conversation with Mao Yishen.

However, he mostly explained the principles and design ideas.

As for the plan, it has not been put forward for the time being. Instead, Mao Yishen was asked to set up a research and development team to conduct research.

After all, if you give it directly, it won’t have the effect of exercise.

……

I was busy until late at night.

Gao Jialin has filled two notebooks for recording his works.

Li Mucai stood up and prepared to leave.

Seeing this, Mao Yishen quickly put down the notes in his hand and stood up to see him off.

As he walked, he said:

"If these devices are developed one day, many dangers can be avoided. I thank you on their behalf."

"No, I just put forward an idea. Whether it can be realized depends on you." Li Mu shook his head and said.

He actually still felt a little guilty.

If we focus entirely on the development of engineering machinery, the conditions for digging tunnels through mountains can be greatly improved in just half a year.

But this is obviously impossible.

Mao Yishen looked at Li Mu's expression, smiled and said:
"That's great. Without you, I'm afraid it would take us a long time to find the direction."

"Besides, you were already short on time, so it's not easy for you to come and help."

"Professional matters should be left to professionals. We at the Railway Technology Research Institute are not here to do nothing. Just wait and see. Sooner or later, we will give you a surprise!"

He did have some little ideas and hoped that Li Mu could help more in the development of engineering machinery.

But at the same time it is also very clear.

What Li Mu is doing must be a research project that is very important to the country.

Maybe it's a fighter jet, maybe it's a tank, maybe it's a submarine.

Whatever it is.

Compared with construction machinery, it is much more important at present.

At this time when the international situation is changing rapidly.

What they need more are weapons that can defend their motherland!
……

Leave the Railway Technical Research Institute.

Li Mu was sitting in the car.

While riding in the car.

He also continued to improve the development plan of engineering machinery.

First, there is the hydraulic breaker.

This is a highly efficient rock breaking tool that can effectively reduce the need for blasting.

At present, they still commonly use explosives for blasting.

It can undoubtedly greatly reduce the risk of construction.

Then there are the laser measuring machines.

It is mainly used for precise measurement and guidance to ensure that the excavation path and section of the tunnel meet the design requirements.

The technical requirements are not complicated.

However, it usually needs to be connected to a computer system and use special software to analyze and process data to generate measurement reports and construction instructions.

"It seems that we need to speed up the development of the Type 04 personal computer. Only with the Type 04 can we sell the Type 03!" Li Mu thought to himself.

To connect to a computer.

Don’t consider other aspects for now.

Cost is an issue.

It is impossible to fully equip the construction team with computers that cost more than 10 yuan each.

The only way.

Only those eliminated from research institutes and schools can be used.

"Perhaps we can develop a special-purpose computer to improve its applicability in high-precision and specific public environments while also appropriately controlling costs," Li Mu thought.

In most cases, laser measuring instruments can be connected to either general-purpose or dedicated computers.

The former has good flexibility, compatibility and cost-effectiveness.

But this was in later times when computer technology became more advanced.

Dedicated computers are definitely more cost-effective now.

Customized hardware can be optimized for measurement data processing and real-time control.

Pre-installed measurement and control software can also efficiently process laser measurement data and generate accurate reports.

At the same time, it has the characteristics of dustproof, waterproof, and vibration-resistant in harsh environments, so there is no need to worry about problems with operational stability.

……

The time it takes to get home by car.

Li Mu had basically made a plan in his mind.

If I stay up late these days, I should be able to send the plan to Mao Yishen and Wu Youxiang in no time.

While thinking about it.

He got out of the car.

Just as I was about to go upstairs.

A figure suddenly walked out of the guard room at the entrance of the special building and said:

"Is that Consultant Li?"

Hear sounds.

Li Mu turned around and looked at the old man who suddenly appeared, and said:
"you are?"

"I'm Shen Yangbing from the Cultural Committee. I've long admired Consultant Li!" The old man stepped forward and shook Li Mu's hand vigorously.

He looked up and down with a pair of eyes full of wisdom, as if he was looking at some rare treasure.

Hearing this, Li Mu was shocked and said:
"Why are you waiting for me here?"

He was a little surprised to find that the leader of the Cultural Committee was waiting for him in the guard room.

And Shen Yangbing, also known as Mao Dun.

In the literary world of Xia Country, his status is extremely high.

"Haha, I originally wanted to visit through Secretary Guan, but time was tight, so I had to go there in person." Shen Yangbing said.

(End of this chapter)