The first rebel of the Tang Dynasty

Chapter 2171 This is Li Min
Yan Lide asked as soon as he came. "Duan Lun, do you know if a house is built stably or not, and whether it is safe or not, where do you look?"

"I know, it all depends on how well its foundation is laid?" Duan Lun responded immediately.

"Yes, if the foundation is not laid properly, then no matter how magnificent a high-rise building is, it will collapse! If it is built, it will be built in vain, and it may even cause casualties. This is not advisable for people!"

"Yes, you are right! That's how it is." Duan Lun replied.

"Then by the same token, if we want to build a bridge in the sea, we must lay down the piers firmly, and the piers here are equivalent to the foundation of the house.

If there are any mistakes in the construction of the piers, the entire bridge will be very weak.But if the bridge is wobbly, once you step on it, you are in danger of collapsing and falling into the sea at any time!Therefore, the construction of bridge piers is very important to the establishment of the whole bridge! "

There is no need to care about the bridge deck at all.

Then the piers are the key.

"Yes, so if you want to cross such a deep sea to build bridge piers, how do you do it?"

"In the sea, it is very vulnerable to the influence of sea water, just like this sand table. There is a lot of water here, but how can we carry out construction here? How to build bridge piers and ensure the safety of life. Create an extremely stable Bridge piers! Mr. provided three plans, and I have improved these three plans!"

"You say!"

Duan Lun knew it was important.

"Three methods, or techniques, to successfully insert piers into the seabed."

"Yes!"

Duan Lun listened very carefully, so Yan Lide will talk about the topic next.

"The first one is the cofferdam method. Because of the special nature of the sea, it is difficult for people to construct in the sea. So, let's think about whether we can turn the ocean into the same environment as the land. Let the foundation of the seabed be exposed, that is Isn't the problem solved?"

"That's okay!" Duan Lun was shocked.

I really want to think that these were all thought up by Li Min and Yan Lide.

These bridge-building ideas are just too incredible.

"By the way, how to do it?"

"What I just said is the core of the cofferdam method. According to this theory, large steel plates, stone dams and other materials that can block the flow of water are first used to enclose all the places where the bridge piers are to be built. Then use pumps to drain all the water inside Drain it. In this case, it is equivalent to building a wall in the sea to separate all the sea water. Workers can use land work methods to construct inside. After the bridge piers are built, the wall can be demolished. But although this method is good, it has a huge shortcoming, that is, it cannot be operated in too deep sea areas. If the sea water is deep, the cost will be immeasurable."

Then Yan Lide demonstrated it again, which made Duan Lun feel amazing.

Just by talking about it, I still can't understand the mystery, but when Yan Lide operates it, it becomes very clear.

"I understand."

When Yan Lide encountered his major, he began to talk about it.

"And there are five methods of cofferdams!
The first method is earth-rock cofferdam, which is the most economical and least technically difficult method.

The second type is the steel sheet pile cofferdam, which is the most commonly used form of cofferdam and has a wide range of applications.It has high strength and is easy to drive into hard soil layers; it can be constructed in deep water and has good waterproof performance; it can form cofferdams of various shapes according to needs, and can be reused many times.

The third type, the steel casing cofferdam, can be used as a water retaining structure for the construction of the cap, and can also be used as a supporting structure for the drilling platform. .

The fourth type is the locking steel pipe cofferdam, which has the advantages of easy lapping and good sealing, and can fully play the role of surrounding water, surrounding soil and surrounding sand.

The fifth type is the concrete cofferdam, which is generally used on the rock surface of the river bed without covering layer and where the water pressure is high.Its main features are erosion resistance, high safety, and good waterproof performance. It can be considered as a part of permanent structures, but the construction is more difficult. "

Yan Lide said too much at once, Duan Lun couldn't remember at all.

"So besides the cofferdam, is there any other way to build the bridge? I heard you say that the cost of that method may be much higher for the depth of the seawater, and the subsequent seawater must not be shallow, so, I want to know if there are other ways?" Duan Lun said again.

Yan Lide nodded.

"Yes, let's talk about the second method, the caisson method!"

"What method is that?"

"Have you ever tried blowing air into the water with a reed pipe, then the water will come up, and then there will be no water in the reed pipe!"

"Yes, such a thing has indeed been done."

"Then the principle of the caisson method is also the same."

"Ah? I don't quite understand!"

"How to do it specifically? It is to slowly sink a stone box with a top and bottomless to the bottom of the sea, and then continuously inject air into the box, and all the seawater inside will be discharged, finally forming a space without seawater, and then You can start construction. Although the operating environment is similar to that on land. However, the most fatal disadvantage of this method is that it will cause great damage to the human body, people are prone to diving sickness, and severe cases will lead to complete paralysis!"

"Then there is a third way?"

"Yes, the last one may be suitable for the next construction!"

"You say!"

"That's the piling method!"

"What is this?"

"This is like inserting a branch into the soil. As long as it is inserted to a certain length, the branch can be fixed, and then we can add things on top. The core of this method is here. However, we use boats. Carry out piling treatment on the seabed and insert the piles deeply into the seabed.”

After Yan Lide said so much, Duan Lun was still in a daze.

After introducing so much, there really isn't much he can remember.

But no matter what, if Yan Lide says it’s okay, then it’s okay.

"I have written down these methods. I will enter the palace and tell His Majesty now, and then I will talk to you about what to do next!"

"Okay, I've introduced the method, and we'll handle it in detail."

Yan Lide finally said again.

"Okay, I'm going back to the palace now!" After Duan Lun finished speaking, he went to the palace.

But not long after he went to the palace, he came back again.

Yan Lide was puzzled.

"Duan Lun, what are you doing back here?"

"Yan Lide, I think it's better to go into the palace with you and talk to His Majesty. Otherwise, I'm afraid that His Majesty won't agree with what I say, or that I won't understand some professional knowledge."

Duan Lun said so.

It was because he was afraid that he would not be able to tell clearly at the time, and he would have to run again, so it would be better to let Yan Lide enter the palace together.

In this case, you can save a lot of time.

It can also make things move faster.

"Okay, let's go together!"

So, the two headed towards the Tai Chi Palace.

As soon as they arrived at Taiji Palace, the two talked to Li Shimin about how to build a bridge.

Li Shimin was very happy after hearing this.

So, I asked: "What is the cost of this bridge?"

"Your Majesty, one hundred miles, two billion taels of silver!"

"what?"

Li Shimin was shocked, he didn't expect the cost to be so high.

And this is just the cost. If Shengtang Group is to build it, it will still have to add money, otherwise, who will do it without profit.

"Because the risk factor involved is also extremely high, the cost cannot be reduced, and a lot of transportation costs have to be eliminated."

Yan Lide said again.

"Not only the construction cost, but also the cost of exploration and design. I haven't calculated these yet, but it will definitely not be too little."

In this way, there are really many.

After Li Shimin heard this, he was silent for a long time.

"Come here, let Dai Zhou enter the palace!"

As a last resort, he let Dai Zhou enter the palace.

Dai Zhou is in charge of money. If he says it's okay, then it's okay.

"Yes!" A eunuch went to invite Dai Zhou.

Li Shimin pulled Duan Lun and said in a low voice: "You said, once this bridge is built, it can really drive development?"

"Your Majesty should understand this. Because Your Majesty has read more books than I do."

Li Shimin has read a lot about economics.

To be rich, build roads first.

"You are the Minister of the Ministry of Industry, but you are still talking to me about this. You said, how many benefits will there be from practicing this? If there are many benefits, I will consider it again."

When Li Shimin said this, obviously, he felt that the bridge was too expensive.

Duan Lun had no choice but to say: "Your Majesty, I will tell you my opinion."

"Speak! I'm listening!"

"First of all, it can facilitate logistics and transportation, because with the bridge, the logistics and transportation distance between the two places can be shortened, the transportation efficiency can be improved, and the transportation will be improved, and the natural economy will be fine.

Then, it can promote the development of tourism, it can make it easier for tourists to travel between the two places, and bring more passenger flow and income to the local tourism industry.Shengtang Group has been doing this all the time, and it was like this when building railways.

Furthermore, it can also drive local economic development. Because of the convenient transportation, many people will look at these two places.Thereby attracting more investment, with these investments, economic development will naturally rise.

Finally, it can also improve the quality of life of local residents. It can make it easier for local residents to travel between the two places and improve their quality of life.Let His Majesty's reputation be further improved.

In short, the impact of bridge construction on the economy is positive. It can promote the development of the logistics industry, tourism, and local economy, and improve the quality of life of local residents. "

After Duan Lun said this.

Li Shimin also agreed.

As for the price, he might have to ask Dai Zhou to cut him.

"I heard you say that, and I think it makes sense."

"Yes, Your Majesty!"

In this way, Li Shimin agreed with it.

That's a good thing.

"But we still have to let Dai Zhou come to talk about it."

Li Shimin changed the subject.

Obviously, it still depends on Dai Zhou.

So they waited there until when Dai Zhou came, Li Shimin called him aside.

"If we take out 50 billion taels now, will our national treasury have it?" Li Shimin asked.

Dai Zhou was shocked.

"Your Majesty, what are you doing with so much money?"

"Fix the bridge."

"What bridge needs so much money?" Dai Zhou asked back.

Now that the money is in his hands, if Li Shimin wants money, it will be quite difficult.

"A two-hundred-mile-long sea-crossing bridge!"

Li Shimin said so.

"What?" Dai Zhou was completely shocked.

I really didn’t expect that a bridge could be built in the sea, and it would be two hundred miles long.

"Your Majesty, is this bridge really that long?"

"Yes, let Duan Lun talk to you about this."

Therefore, Li Shimin looked at Duan Lun.

Duan Lun said all of this once.

Dai Zhou was very shocked after hearing this.

Then, I thought about it.Said: "It takes 50 billion taels for two hundred miles, which is a bit much."

"Let Yan Lide do the talking about this," Li Shimin finally said.

Now Yan Lide stood there like a fool until Li Shimin called him.

"Your Majesty called me?"

"Yes, tell me why it is so expensive!" Li Shimin said.

This matter still has to be decided by Yan Lide.

Otherwise, let Li Shimin say, it's a bit like Wang Po selling melons.

Yan Lide had no choice but to say the words again.

He has said these words many times.

In fact, he could have left it alone.

But this matter can indeed create value for Datang.

So, let him take care of it.

After hearing what Yan Lide said, Dai Zhou understood now.

It turns out that building a bridge is really not easy.

Moreover, this money is not necessarily 50 billion taels, it may be more.

The 50 billion taels is just what Li Shimin said.

How much it is true depends on the calculation of Shengtang Group.

"Your Majesty, this is a good thing, but we don't have that much money to invest in the early stage. I would like to ask Yan Lide, how long will it take to build this?"

"Ten years!" Yan Lide did not hide it.

Then he added: "In ten years at most, if the funds are in place, it can be reduced by half or more."

It depends on the meaning of the court.

If your money is in place, I will be there soon.

If you give the money in parts, of course you will pay as much as you want to build. It is impossible for Shengtang Group to invest in you first.

Now the question comes to Li Shimin.

"Dai Zhou, what do you think?"

"Your Majesty, I will do the calculation!"

Dai Zhou said quickly.

Yes, it actually requires some accounting.

I can't give you as much as you want, that's unrealistic!

"You calculate it carefully, can you give it to me later?"

Li Shimin seemed a little anxious.

"This... I will do my best!"

"Okay then, hurry up, we'll wait here!"

Li Shimin said again.

Yan Lide said at this time: "Your Majesty, we have to calculate the final amount. When the time comes, just contact Wei Zheng directly. I don't care about these things."

Yes, he doesn't care about money matters.

And it is Wei Zheng himself who manages the money.

What Yan Lide meant was that he wanted to go back, he had been in Tai Chi Palace for so long, and he wanted to go back to deal with matters.

"Okay, you go back!"

Li Shimin said again.

"Yes, then I'll go first!"

Yan Lide then left here.

Only Duan Lun and Li Shimin were left at the scene.

The two waited for Dai Zhou's return.

And Dai Zhou did not disappoint them. The answer he gave them was that the money would be available within three years.

(End of this chapter)