Chapter 697: Threading the Needle Under the Sea

Helong, it must be successful the first time!

It's the pressure on all of them, and it's their biggest motivation.

It's difficult.

It's too easy, it's too unchallenging, and they're not interested.

Looking at everyone's eager expressions, the leaders were very uneasy, but when they looked at the two chief engineers of Su Lin, they looked helpless.

No way, everyone is so powerful, they can't be humble if they want to.

The international media is divided on their optimism.

With its own efforts, Huaxia has gone from not having any core technology to the Zhuhai-Hong Kong-Macao Bridge, which is now a powerful trinity of bridges, islands and tunnels, as of this time, it is not even eight years.

Although Huaxia did not leak any data, and the inside story was also very tight, in fact, everyone could guess it.

Lu Zi'an, there must be participation.

Moreover, the reappearance of the previous Jun porcelain in the world is also indispensable for his traces.

For Lu Zi'an, they love and hate.

Talents are rare, although they envy them, but they also have to admit that sometimes, ability is greater than everything, Master Lu's skills are profound, they can't help but admire.

If Lu Zi'an is in their country, then they will definitely treat him as a guest, and they can't hold him to the sky.

It's a pity that such a person fell in Huaxia.

The birth of Lu Zi'an broke the vague calm of the previous countries.

His vigorous innovations, inheritances, and means emerged one after another, leading the Chinese people on a completely different path along the way.

But what about them?

The benefits brought by Lu Zi'an, they can't get anything.

Not to mention eating meat, they can't even drink soup.

Sometimes it's hard to grab a point, and even occasionally pay a painful price, and before you can be happy for a few days, you will find that it is all scum!

This feeling, not to mention the congestion.

On such a basis, can they still be expected to say anything good about Lu Zi'an?

Nature is impossible.

It is impossible to boast, and if you don't secretly smear it, you're sorry for the gray face that once hit Lu Zi'an.

As a result, countries not only pulled out their own tall bridge buildings and praised them fiercely, but also showed off all kinds of top technologies by the way.

As if unintentionally, it occasionally mentions the difficulties faced by Huaxia in the first place, when it was unable to build Zhuhai, Hong Kong and Macao.

It's not obvious, but the arrogance spreads between the lines.

Many people in China who don't know what to do are simply angry when they read these articles.

But what's the solution?

What people say is the truth, this is the most annoying thing.

Although Huaxia's response is not slow, many forum websites have still been swiped.

On the same day, a call was made to the project, and it happened to be the call received by Chief Engineer Lin.

"Chief Engineer Lin, look, do you want to publish a picture or something, so that they can converge and converge?" the official responsible person said as tactfully as possible: "The leader looked at their words and was a little angry. ”

"Oh, you're talking about it, I've seen it before. Chief Engineer Lin was very calm and relaxed, and was even in the mood to drink a cup of green tea: "I'm arranging it here, don't worry." ”

Arranged?

For their quick response, the staff said they were very happy, and the leader was also very pleased: "How did you arrange it?"

"Hey. Chief Engineer Lin smiled and glanced at the people who were struggling: "We found that in these articles they published, in order to show their ability and engineering accuracy, some internal data ......"

Although it is not obvious, there are too many articles, and when you put them together, you can probably get an outline.

“…… What does this mean?"

Chief Engineer Lin was very happy: "They think we can't understand it, ha, I have already arranged manpower on my side to analyze their internal data, please rest assured, we are in charge of it!"

What is it like?

In the past, when I took the high school entrance examination, I wanted to find a teacher for training, but I was rejected.

Later, he found another famous teacher, not only got into a good high school, but also studied hard, made progress every day, and was admitted to a good university.

At this time, the original teacher took a reference answer with a disgusted face: "Na, who is that, it's not that I don't want to teach you, it's that your qualifications are too poor, don't believe it? ”

Others thought it was a slap in the face, but in fact, Chief Engineer Lin couldn't ask for it.

Not only did he not answer the question, but he also took the answer and pushed it back.

The leaders never expected that the reaction they gave would be like this, and they couldn't laugh or cry.

After discussing with Lu Zi'an, Chief Engineer Lin even asked Zhuo Peng to intervene and make the fire even bigger.

For a while, the entire industry was in a miasma, and there were all kinds of voices singing about their projects.

At this time, the installation of their final joint has been put on the agenda.

In April, the project headquarters invited nearly 100 experts, including Academician Sun and Professor Xu of Tongji University, and Academician Ye, an alumnus of Tongji University, to Zhongshan City to participate in the "Expert Consultation and Review Meeting on the Construction Plan of the Final Joint Installation and Closure of the Immersed Tunnel of the Island Tunnel Project of the Hong Kong-Zhuhai-Macao Bridge" to "check the pulse" for the construction of the last 12 meters of immersed tube.

The installation of the 12-meter connected immersed tube requires a hydrological window, and the hydrological window, in the period from April to May, there are only two.

In other words, after May, Lingdingyang is no longer suitable for installation operations.

The installation of the final joint requires a calm sea surface and a clear sky with visibility of more than 1,000 meters, so the short-term forecast and real-time forecast of the weather must keep up.

After the report of all the topics, Academician Sun said: "Although everyone is cautious, please consider the following risks: the soil mechanics analysis of the foundation bed under the final joint of the immersed tube should be studied in more depth, the influence of lateral water flow force in the process of the final joint in place should be controlled, and the early structural settlement analysis should be accurate. We must study and grasp these key issues thoroughly, and use the correct results to guide the installation and construction of the final joint. ”

Final word.

On the morning of May 2, the final joint arrived at the mooring area.

After confirming that everything is correct, at about 7:20, the joint of "Zhenhua 30" with a lifting weight of 6,000 tons will slowly sink after completing 90-degree rotation in the construction area.

In the process, they have to overcome the effects of currents and waves.

Not only does it need to be perfectly controlled, but the plane error of the joint must always be kept within 15 mm.

"What is this equivalent to?" Academician Sun looked at the screen, feeling quite nervous: "People like to say that women's hearts, undersea needles, our Helong, is no less difficult than threading needles under the sea." ”

The hoisting of the final joint is the most critical battle of tunnel construction, which determines the success or failure of the construction of the immersed tunnel and the construction of the Hong Kong-Zhuhai-Macao Bridge.

The installation and construction space of the closure of the submarine tunnel is the smallest, the water flow of the dragon mouth is the most urgent, and the accuracy of the docking position is the highest.

Everyone tensed their nerves, and Lu Zi'an's forehead even oozed sweat.

For this moment, they have been preparing for too long, too long.

For four and a half hours, every turbulent water flow will cause subtle fluctuations in the data.

And they must choose the best time in this fluctuation and thread the needle!

Throughout the command room, a pin drop could be heard.

Lu Zi'an stared at the joint, watching its slight swing without blinking.

Finally!

He shouted in a deep voice, "Start!"

All the machinery starts at the same time, and the wedge joint is slowly inserted.

At 12 noon, the final joint was successfully implanted.

But no one dared to relax, they stared anxiously at all the data, and many people jumped off the construction site.

The data is constantly being transmitted, and everyone is in full swing to calculate and verify.

Finally, all parties have confirmed, and the up and down error of this final joint is perfectly controlled at 3 mm!

That's a full 12 mm smaller than the 15 mm they originally estimated!

Chief Engineer Su took the case, could no longer hide the smile on his face, and said loudly: "Okay! I announce! Finally, the immersed tube installation has been successfully completed!"

Before the words were spoken, everyone stood up and applauded vigorously.

At the same time, firecrackers rang out outside, and the noise swept through the entire construction site.

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