Chapter 678: In one go
This process at a constant speed is very difficult to control.
Because the waterway is narrow and the immersed tube is too large, even a small shaking can be multiplied when transferred to such a behemoth.
Lu Zi'an didn't speak, he calmly looked at the dozen or so screens in front of him, staring intently, only at the right time, according to the change in the direction of the water flow, and promptly notified all departments to make corresponding adjustments.
The chatter around him didn't affect him in the slightest, and before he knew it, the room gradually quieted down.
In the silence, only Lu Zi'an's voice was exceptionally clear.
More than 10 tugboats with a total horsepower of more than 40,000 horsepower are produced at the same time.
The static immersed tube on the screen moved slowly under Lu Zi'an's clear command.
The first immersed tube is very large, and its area is equivalent to 12 basketball courts.
Weighing 47,000 tons, the transfer of this huge object is destined to be a very long battle.
The strings in everyone's hearts were tense, and they stared intently at the sinking tube and slowly moved forward.
Finally, under the lifting belt of Jin'an 3 and Jin'an 2 immersed tube installation ship groups, the E1 pipe section passed through the belt cable in the dock and successfully passed through the deep dock port in the nervous eyes of everyone.
Watching it slowly leave the dock, everyone in the room suddenly sighed softly.
"The water velocity is stable. ”
"The wind speed is stable. ”
"There is an undercurrent underwater...... Normal pass. ”
“......”
One message after another was quickly fed back, and everyone in the room continued to be busy, not daring to relax in the slightest.
The immersed tube is large in volume and weight, but under the action of seawater, the immersed tube has a strong dependence on sea conditions and currents.
The wind and rain at sea are getting stronger, but the situation is still manageable.
We all know that this process will definitely be long, but no one thought that from the undocking of the immersed tube to its arrival at the mooring area of the west artificial island, the process of transferring it alone will take a full eleven hours.
After staring at it for such a long time, everyone breathed a sigh of relief when the immersed tube successfully reached the mooring area.
Everyone felt exhausted and empty.
"It was probed last night and the bottom of the sea is in good condition. Chief Engineer Lin picked up the report handed in last night, and handed one to Chief Engineer Su and Lu Zi'an: "They came back with news just now, the rain on the sea has gradually decreased, and it is estimated that it will stop in another hour or two, I think everyone might as well take a rest first, have a meal, and put it on directly today!"
Morale is like this, one blow up, then decline, three and exhaustion.
Chief Engineer Lin's idea is very simple, the previous mobilization effect has reached its peak at this moment, and it is better to take advantage of the good news that the immersed tube has been successfully settled, and the docking will be completed smoothly.
Obviously, Chief Engineer Su also thought so, so he didn't refute, but looked at Lu Zi'an inquiringly: "Master Lu, what do you think?"
"Probe again. Lu Zi'an didn't care about morale or anything, and he didn't care about the length of time.
He read the report very calmly and gently closed the page: "This is yesterday, I need to see today's report." ”
"This time interval is already very short...... what Chief Engineer Lin did not say is that although the sea is unpredictable, the environment under the sea is actually very stable.
It usually takes a long time for a sea area to change.
They had even used a week-old report before, and there was little discrepancy.
But this statement of theirs does not work here in Lu Zi'an.
"I know last night was fine, but it rained for a day today, and since it was decided to do the immersed tube docking today, then I need today's data. Lu Zi'an didn't give an inch, his eyes were bright and resolute: "I don't want to spend a lot of time and manpower and material resources to make up for this mistake because I saved this step." ”
Butterfly wings or something, a little accident can lead to undesirable consequences, since there is still time, why not make a confirmation?
In this way, Chief Engineer Su and Chief Engineer Lin were quite surprised.
Lu Zi'an's style of work is bold in the entire craft world, and he will even make great innovations on the basis of some techniques.
In the craft world, Lu Zi'an and his entourage are even called innovators, and the opposite is the old school that once existed.
Unexpectedly, now Lu Zi'an is so stable......
Su Lin and the others looked at each other silently, but they did not deny Lu Zi'an's proposal.
Anyway, it won't dock right away now, since Lu Zi'an is so insistent, let's probe it again.
The staff who were about to evacuate to eat paused and stood silently looking at the data transmitted from the bottom of the sea.
Except for the staff on duty, everyone else went to eat.
It's just a routine check, and it doesn't have much to do with them, so it's important to get ready for a later docking.
After the order from the command room was delivered, the artificial island quickly got ready.
If the wind is high and the rain is strong, they really don't dare to send people down.
However, seeing that the wind and rain stopped, the dark clouds gradually dispersed, which made it easier for the divers to operate.
Check step by step, and check every detail in place.
A total of 10 divers were dispatched, and after each inspection, a light was pressed to indicate that everything was fine.
Isn't there anything wrong with that......
Everyone was originally a little nervous, but as the green lights were lit one by one, their spirits gradually relaxed.
Master Lu still has no experience in undersea operations, so he is inevitably too careful.
Before the smile on their lips could rise, one of the divers suddenly stopped.
He stopped in a place under the water for a long time, and did not press the light for a long time.
Soon, someone noticed his anomaly, and divers in the distance quickly approached.
After gesturing to each other a few times, and after repeated confirmations, they cautiously pressed the light.
"Woo Woo!"
The bright red color of the warning lights stung everyone's eyes.
The shrill voice of the long roar seemed to mock their previous ignorance.
But it seems like it's just the beginning.
After the diver made the mark, he continued to look forward, and soon a screen lit up with a red light.
Next, there is the second, the third......
A full screen of red lights.
The people who had run to eat before heard the sound and quickly ran back.
Looking at the various data transmitted back, Lu Zi'an frowned.
The height of the subsea foundation trough is incorrect.
"Last night's altitude measurement was fine. Someone muttered.
Once the divers were all on shore, they quickly submitted more accurate data.
The pre-laid foundation trough on the seabed is 4 to 5 cm higher than the original one, which is not the best sinking effect.
Four or five centimeters, it doesn't seem like much, but everyone's hearts sank.
The foundation groove is used to place the immersed tube, which is a few centimeters higher, and the lightest consequence is that the immersed tube butt is offset, and if it is more serious, it is very likely that the immersed tube cannot be put in at all.
Chief Engineer Lin and Chief Engineer Su glanced at each other, their eyes were cautious and afraid, and they were even more happy.
Fortunately, it was discovered in advance, and if it was discovered when the immersed tube slowly sank to the seabed foundation trough, it would be really bad.
After this problem arises, everyone knows how serious it is.
There was no need for an order from the command, and preparations for the cleanup of the artificial island were already underway.
By the time the order from the command came down, they would have been ready for a long time.
At the sound of an order, a group of divers jumped into the water.
They need to clean the sediment in the foundation trench in the deep sea at a depth of more than 10 meters, and the area is not small.
The difficulty of construction can be imagined.
Everyone else ate and slept one after another, but only Lu Zi'an and the three never moved.
They stared intently at the screen, watching them little by little, trying to clear the mud and sand from the foundation trough.
In order to keep a clear head at all times, the three of them not only applied wind oil essence, but even washed their faces with ice water.
The night passed quickly, and they had been waiting.
It wasn't until the afternoon of this day that good news finally came from the direction of the artificial island: the foundation groove was all cleaned and the immersed tube docking could begin.