Where the knife goes, the wood separates layer by layer.

As if they had already been decomposed, Lu Zi'an was just taking them away.

Even when the knife is carved into the wood, there is no harsh sound, the rhythm is undulating, and it is a little pleasant.

Chief Engineer Su frowned slightly, and nodded cautiously: "It's indeed a bit like the feeling of Ding Ding solving the cow, and the good ones are also good at the skills." ”

Small pieces of wood on the table were piled up, and soon even the wood from the outside was brought in.

Lu Zi'an's speed is always very stable, and after watching it for a long time, people can't even feel the passage of time.

Lunch, dinner.

Lu Zi'an was so busy that it was late at night.

Several apprentices worked together to help clean the table top and organize all the wooden blocks, so although there were many parts, the table top was still neat and tidy.

The others went back to rest one after another, but because Chief Engineer Su and Chief Engineer Lin still persevered, there were still many core figures who stayed at the scene.

From beginning to end, the people around him came and went, and Lu Zi'an was not distracted.

It wasn't until two o'clock in the morning that he finally stopped.

He twisted his wrist slightly, and the knuckles clicked.

Ying Xuan took the pile of wooden blocks in front of him again, sorted them, counted them again, and then distributed them to the juniors and disciples who were in charge of different parts.

After completing this step, Ying Xuan sat down, carefully and carefully began to record the number and corresponding number of this wooden block, and gently pushed it over: "Master." ”

Lu Zi'an put down the carving knife, his eyes swept over the paper, and after a moment, he nodded indifferently: "Let's start." ”

Begin?

Could it be that they've been doing it for so long now that they haven't even started yet?

Chief Engineer Lin and Chief Engineer Su glanced at each other in shock, and took a few steps back again according to Ying Xuan's request.

The side close to Lu Zi'an was quickly cleared out of a vacant seat more than one meter wide.

"The old rules. The corners of Lu Zi'an's lips were slightly raised, and his fingers tapped briskly on the desktop: "Remember the number you are responsible for." ”

"Yes, Master. Ying Xuan responded suddenly, and there was no trace of sleepiness in his eyes.

Lu Zi'an took a relatively thin, but wide and long piece of wood and polished it gently: "5. ”

Fang Yi's reaction speed was extremely fast, and as soon as he stretched out his hand, the fifth-numbered wooden block was handed over.

It is unheard of to build a bridge model entirely of wood.

In the beginning, it was just the bottoming, and then the erection.

The wooden blocks were handed over continuously, and Lu Zi'an's speed was fast and steady, and he quickly combined them.

Not even a single nail was used in the whole process, and it was all a combination of mortise and tenon structures.

What is rare is that in some places with arcs, Lu Zi'an's size arrangement is also very tight.

First two short sections of bridge, arranged in a "Y" shape, then converge on a larger plank.

After confluence, it is extended again and finished on another large wooden platform.

This finishing is very clever, seemingly casually adding a few small pieces of wood, and easily tilting them slightly downward.

At this point, even Chief Engineer Lin was interested.

All the wooden blocks were used by Lu Zi'an in this way.

It looks like a closed segment, but it has a huge hole in the middle.

Fingers can be poked into.

If people don't understand what this means at this time, they have wasted all kinds of investigations in previous years.

The bridge erection in front of Lu Zi'an is not particularly fine.

But at this point, his steps suddenly became cumbersome.

Not only are the wooden blocks much smaller, but sometimes they even have some strange details.

For example, between the hole and the outer layer, he even added a layer of wood.

This layer of wood extends again, compressing the holes even tighter.

Down, parallel, and up again.

A short section of the undersea tunnel was built by Lu Zi'an lightly.

Chief Engineer Su frowned, leaned in and looked inside, but could only see a cloud of darkness.

It stands to reason that there should be some fine seams in the wooden blocks assembled in this way, and there should always be some light leakage in such a strong light front.

But no.

Not only is it not, but it also makes it impossible to see what is inside.

It was as if it was a whole piece of wood, with no holes in it.

The bridge behind it, no one else has the heart to look at it anymore.

After the construction of the Luzi Security Department was completed, Chief Engineer Lin couldn't wait to ask: "Master Lu, you, you are the model of our bridge?"

"So to speak. Lu Zi'an stuck the last piece of wood into it, gently stroked the entire bridge with his fingers, and paused at this part of the tunnel: "I have studied for a long time and found that your drawings are missing a lot, and the ones I gave me are basically related to the tunnel, so I only made a model of the tunnel." ”

Although it is all done, but in the case of the model, only the tunnel may be used, and the rest is just a decoration.

"Already, it's already very good......" Chief Engineer Su was so excited that his face was a little red, and he rubbed his hands: "Why don't I call people up and discuss them?"

It's hard to imagine that someone could make such a complex model of a bridge with a pile of wood.

And......

Lu Zi'an can actually divide the entire bridge into several pieces and then assemble them together!

It means that the bridge is moving! What does it mean?

It means that they may be able to rely on Lu Zi'an's stunt to build a model of the undersea tunnel and then build it in kind!

Not only Chief Engineer Su, but also many designers present felt that it was a little difficult for them to breathe.

"There's no hurry. Lu Zi'an glanced up at him, moved his finger slightly, and pointed to the big wooden block: "The key to the conversion of bridges and tunnels lies in the construction of artificial islands, on your drawings, only two artificial islands are planned to be built, but I suggest that it is best to build four of them." ”

Artificial islands are naturally needed on both sides of the tunnel, but Lu Zi'an actually built a total of four artificial islands in the entire bridge.

If the construction is carried out according to the traditional rubble reclamation method, the construction period is as little as 2 years and as much as 3 years;

Arranging a large number of ships to operate in the waterway where four or five thousand ships travel every day is extremely high;

Moreover, 8 million cubic meters of seabed silt need to be excavated, which will cause great pollution to the marine environment and is not conducive to the protection of Chinese white dolphins.

Therefore, they had to find a way to quickly become an island.

Chief Engineer Lin thought seriously for a moment, and said calmly: "I'll think of a way to do this, first tell me your thoughts on this undersea tunnel." ”

"Method...... It's actually quite simple. Lu Zi'an's fingers stroked the sinking piece of wood, and when everyone didn't react, he knocked lightly!

The wooden bridge was broken in response.

Everyone was dumbfounded and dumbfounded at this scene.

The corners of Lu Zi'an's lips were slightly hooked, and his voice was cold: "I once made a work called "Reincarnation", which is a clever combination of several scattered parts in a special way, and I think this method can also be used on the submarine immersed tunnel. ”

"What do you mean......" Chief Engineer Su muttered, his eyes a little condensed.

"Use a giant concrete pipe section, build it on land, and then dock and place it on a soft foundation on the seabed. As Lu Zi'an spoke, his fingers skillfully divided the entire wooden tunnel into 33 sections: "According to my calculations, a total of 33 sections are needed for a 5.6-kilometer tunnel. ”

There was a deathly silence in the room.

"Here's my sketch, the result of my math...... Each section is 180 meters long, 38 meters wide, and 11.4 meters high, and weighs about ...... 80,000 tons. Lu Zi'an's expression remained unchanged, and he pushed out the notebook and said very easily, as if he was chatting about how good the weather was today.

Chief Engineer Lin clenched his fists and tried his best to control his emotions: "Do you know how difficult it is? The construction of a deep immersed tunnel under water of nearly 50 meters is regarded as a "technical forbidden zone" in the international community!"

Before Lu Zi'an could speak, Chief Engineer Su took over, he glanced at Lu Zi'an with a little embarrassment, and his voice was low: "This kind of docking requires a series of technical supports such as accurate remote control, surveying and mapping, and supercomputing, and its difficulty is ...... It is comparable to spacecraft rendezvous and docking. ”