Chapter 698

The source of Zheng Chun's confidence is the 'Zhenhua' 12,000-ton crane ship.

At 7:34 a.m. on February 12.

The Zhenhua crane ship appeared again to re-dock the final joint.

Then.

There are less than 24 hours left until the completion ceremony.

After the Zhenhua crane ship was in place, Zheng Chun began to use the walkie-talkie to direct the "Zhenhua" crane driver to control the crane boom.

"Lift the pole!"

"Get off the pole!"

Zheng Chun's eyes were firmly fixed on the real-time picture displayed on the screen in the command room, and he commanded in a calm and calm voice.

With the command, the big boom fell together.

Two hours passed, and Zheng Chun issued hundreds of passwords, constantly adjusting them precisely.

It has been shown that the deviation is between 3~4 cm many times here, and many people in the command room think that it is completely possible to stop, but Zheng Chun did not stop.

Because Zheng Chun wants a perfect precision this time.

At 10:45 a.m. on February 12, the hook of the crane boom lifted the 6,000-ton final joint on the foundation bed and slipped slightly.

"Put it down!" was Zheng Chun's last instruction in this hoisting.

Then.

Fifteen hours have passed since Zheng Chun received the data deviation report from the person in charge of the interface department.

Plus the first docking work of the final joint of the command.

Zheng Chun hadn't closed his eyes for more than thirty hours.

When the last docking command is issued, according to the GPS data, the deviation at the interface this time is 1~2 cm.

Until this time.

Zheng Chuncai sat down on the chair with a relieved smile on his face.

But......

After having the experience of the first docking, Zheng Chun did not take it lightly.

The last time it was docked, the GPS data showed that there was no problem with the deviation, but when the data of the penetration measurement was obtained, the deviation value at the interface was directly to 17 centimeters.

So, Zheng Chun immediately grabbed the walkie-talkie and contacted Gu Lu and Deputy Chief Engineer Sun, who were still underwater.

"Professor Gu, Lao Sun, you hurry up and measure the penetration, I want you to measure the penetration data at the interface in the shortest possible time. ”

"Yes!"

After receiving Zheng Chun's instructions, Gu Lu immediately called the workers to measure the data.

After the equipment was built, Gu Lu pressed the button and started measuring.

On the screen in Gu Lu's hand, after the numbers flickered, they stopped at a certain set of data.

Looking at the penetration measurement data displayed on the screen of the device, Gu Lu's pupils shrank suddenly.

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

"What, through the measurement data, the lateral deviation is 0.8 mm, the longitudinal deviation is 2.5 mm, Professor Gu, Lao Sun, are you sure you are not wrong in the measurement?" After hearing the report of Gu Lu and Engineer Sun, Zheng Chun's tone was full of disbelief.

Meantime.

After hearing Zheng Chun shout out this set of penetrating measurement data, the entire command room unexpectedly boiled completely.

The lateral deviation is 0.8 mm, and the longitudinal deviation is 2.5 mm.

What a concept!

Be clear.

At the time of the last docking, the lateral deviation data was a full 17 centimeters.

And now......

This deviation is directly reduced to the millimeter level.

That's millimeter deviation!

If you look at all the undersea tunnel projects at home and abroad, the millimeter-level deviation at the pipeline interface has never been seen before.

If this data is true, it lies in the world, and the Bohai Tunnel is unique.

Until then.

Naturally, Huaguo can undoubtedly rank among the first-line powers in the construction of undersea tunnels.

Zheng Chun clutched the walkie-talkie tightly with both hands, and his slightly flushed face showed that his current mood was also not calm.

Zheng Chun was waiting for Gu Lu and Engineer Sun's answers.

"Chief Engineer Zheng, it's true!" Gu Lu's happy voice came from the walkie-talkie, "When I saw this set of through-measurement data, I was also a little hard to believe. However, I had people measure it a few more times, but it was still the same set of data, with a lateral deviation of 0.8 mm and a longitudinal deviation of 2.5 mm!"

"Chief Engineer Zheng, we have succeeded, and we are still a big success!"

Zheng Chun laughed, "Hahaha, yes, Professor Gu, you're right, we succeeded!"

The re-docking work was not only successful, but also reduced the deviation at the interface to the millimeter level.

It was a bonus.

Zheng Chun turned his head, his eyes swept over the people in the command room one by one, and said with a smile.

"Guys, we won the bet!"

"Oooh oh!!"

The crowd in the command room began to applaud vigorously regardless of the image.

The re-docking was successful, and in any case, it was a good thing.

In particular, this re-docking will reduce the deviation at the interface to the millimeter level, which will definitely become a big blow in the media.

Everyone had to admire Zheng Chun's decisiveness and self-confidence.

Because if Zheng Chun hadn't insisted on re-docking, there would be no more perfect deviation data now.

And the names of the people may be erased from the current merit roll and written on the pillar of shame.

"Everyone, be quiet, be quiet. ”

Zheng Chun pressed down with his hands in the void, signaling everyone in the command room to be quiet.

"The success of this re-docking work has created two milestones, one is that we have actually verified the final joint construction method 'process reversibility' in the history of immersed tunnel construction in the world, and the other is to reduce the deviation of the breakthrough data at the interface of the immersed tunnel to the millimeter level for the first time, and all of this is inseparable from your sincere cooperation. ”

Two historical milestones, and any one of them can be recorded in the annals of history.

Although this re-docking contains great risks, the benefits are also proportional to the risks.

And now, the people have succeeded, and they have reaped the fruits.

There was a smile of pride on everyone's faces.

"Chief Engineer Zheng is polite, in fact, we didn't make much effort. Someone waved his hand and said sincerely, "I want to thank him, and Chief Engineer Zheng should thank Deputy Engineer Sun and Professor Gu who are underwater." ”

The man was telling the truth.

In the whole re-docking work, everyone only participated in the discussion of the plan, and it was Zheng Chun, Gu Lu and Engineer Sun who were under water who really implemented the plan and overcame the difficulties one by one.

"Haha, the two of them, I'll go and thank them. Zheng Chun smiled, and then patted one person on the shoulder, "You haven't slept all night, and now that the re-docking work has been completed, let's hurry up and go back to rest." As for the celebration banquet, how about arranging it after the completion ceremony tomorrow?"

"It's all up to Chief Engineer Zheng's arrangement. The voices of the people answered in unison.

"Okay, then let's go back and rest, tomorrow is the completion ceremony, don't come here with a pair of dark circles!" Zheng Chun smiled and sent away the people in charge in the command room.

And at this time.

Gu Lu and Engineer Sun also came up from underwater.