World-class infrastructure maniac

The successful docking of the cross-sea bridge to the artificial island from Li'an Port indicates that the construction of the bridge section of the South China Sea Tunnel is coming to an end.

Weng Chengxian led the team, and all the staff settled in the Changlang artificial island construction site to plan the subsequent docking work between the bridge and the artificial island.

Even though Li Feng is not used to the sound of wind and waves at night on the artificial island, he wakes up in the morning full of energy.

There is nothing more motivated than achieving the goal. He saw the extended body of the cross-sea bridge and the large hanging tower waiting for docking on the sea from a distance, and he couldn't be more excited.

The docking must be stable, the welding must be fast, and the angle must be accurate.

The simple bridge hoisting requirements were replaced by the crucial bridge-island connection project, which became extremely complicated.

Because, the "Beacon Tower" bridge tower of the cross-sea bridge located on the Changlang artificial island weighs far more than any bridge foundation, but they want to suspend the thousand-ton bridge tower above the South China Sea, point by point. Rotate and place on the ground to realize the docking of bridge deck, bridge tower and artificial island at three points and one line.

Before the official work started, Li Feng followed the team and held countless meetings.

"The recent sea breeze is difficult to predict. The rotation angle and level must be strictly monitored at the beginning of hoisting, and the welding should be completed as soon as possible."

"The angle of the hanging tower needs to be adjusted again. Pay attention to the direction of the windproof barrier. The emergency plan for adjusting the tension of the bridge tower with the jack must be prepared to ensure a successful docking once."

"Remember to contact the maritime and rescue teams in advance to avoid accidents where fishing boats stray into the construction area during construction... Also, make emergency preparations for bridge towers topple over and rescue accidents."

Weng Chengxian's steady voice echoed in the room, and every sentence hit Lu Feng's heart.

The beacon tower shape of the bridge tower was designed by Lufeng.

It echoes the iron-gray sharp knife and halberd. It not only has the simplicity of a hexagonal triangular household, but also has the endless historical heritage of China.

However, when he actually arrived at Changlang Artificial Island and participated in the docking seminar, he discovered how severe challenges this beautiful beacon tower brought to the construction team.

The concave-convex shape of the beacon tower makes the center of the bridge tower scattered, which is very vulnerable to shaking due to the sea breeze.

It is hoisted by a large floating crane on the sea. When docking, a little carelessness may cause the bridge tower and the floating crane to tilt, overturn, and fall into the seawater.

It's like placing this thousand-ton weight on a steel wire, letting go of your hands and waiting for its center of gravity to fall to the designated position.

Lu Feng just listened to Weng Chengxian's instructions, and the reports of the various project leaders broke out in a hot sweat.

The docking of the cross-sea bridge will not be easy, but he is confidently waiting for Chinese engineers to create miracles.

Unexpectedly, this miracle is equivalent to hundreds of millions walking a tightrope.

At the end of the meeting, Lifeng has not recovered from the terrible imagination.

He walked outside, and the salty sea breeze caressed him, cooling him down.

"Gong Qu, at first I thought that the construction group's 'vertical lifting' technology was already very mature, so I agreed to use the beacon tower design."

Lu Feng carefully recalled that when many units and engineers discussed it, no one in the audience questioned the height, center of gravity, and material of the bridge tower about the shape of the beacon tower. plan, did not tell him at all—

"It turns out that this plan is so difficult."

After hearing this, Qu Fei saw Lu Feng's serious face and couldn't help laughing out loud.

"Don't do it if it's difficult? The person in charge of Renjian Construction Group has guaranteed that it will be completed satisfactorily. Why do you help them?"

He raised his finger and pointed to the large and small industrial ships moored on the artificial island, and said: "They moved all the hydraulic control system and inclinometer monitoring. Ready, why? Now you regret designing the Beacon Tower?"

His voice was relaxed and comfortable, as if with these surveillance cameras and ships in front of him, the docking of the bridge towers in the day after tomorrow must be completed in one go.

The worry in Lufeng's heart can never be conveyed to Qu Fei to empathize with him.

"Of course I don't regret it." Lufeng sighed, "But if they say in advance that there are technical difficulties, I can study more about the force of the center of gravity of the bridge tower shape, and make it easier to hoist."

Beauty is the external condition of the bridge.

But the South China Sea Tunnel can be built, of course, the most important thing is not the shape.

Whether it is the beacon tower of the Great Wall of Steel or the ordinary bridge tower with sharp knives, it does not affect the South China Sea Tunnel Bridge to shock the world.

Unfortunately, Qu Fei disagreed.

"The shape of the Beacon Tower was decided by our votes all the time. The construction group didn't mention any difficulties, which means they like this kind of bridge tower and the Beacon Tower you designed!"

The beacon tower standing on the sea surface of the Nanhai Tunnel made Lufeng understand the price of beauty.

The people in charge of the entire docking project are busy. Every time they go to confirm the data, they can see the scarlet eyes of the builder.

The day of hoisting and docking finally arrived as scheduled.

At two o'clock in the morning, Li Feng listened to the waves crashing on the shore and stayed up all night. He put on his clothes and went out, only to find that the construction site was brightly lit, and countless figures were standing on the shore.

Like him, waiting for the start of work at six o'clock.

The sun shines on the sea from the horizon, and everyone is quietly and seriously staring at the monitoring data on the screen.

Mr. Weng gave an order, and the huge floating crane on the sea erected a beacon tower with a concave and convex shape, and while everyone held their breaths, they leisurely left the hull.

The sun rises into the sky, and the bridge tower is suspended on the bridge deck.

It's just a thousand-ton piece of steel. The operator lifts it up slowly, like lifting a soft and fragile baby. He is afraid that the movement will be too fast, disturbing its peaceful sleep, and afraid that the sea breeze will disturb its softness. hair.

The short 100-meter ascent distance is slowly and gently carried out under the gaze of everyone.

Even if the sun warms the sea and the sea breeze blows over Lu Feng's cheeks, it will bring pain that cannot be ignored.

He couldn't bear to blink, and stared intently at the rising bridge tower on the monitor.

Even though hundreds of people around were busy with this project, he could only hear the calm of the wind and the waves.

Until the thousand-ton piece of steel, suspended from the bridge deck, began to turn vertically, those disappearing voices suddenly became noisy, and the calm voice could not cover up the anxiety of the unexpected arrival.

"The horizontal position of the pylon deviates by 9°."

"The vertical rotation did not reach the budgeted position, and the bridge tower did not slip as planned."

Two simple sentences, the tone is extremely fast.

Before Li Feng could realize the problem, Weng Chengxian who was beside him made a quick decision, "Jack!"

The race against time has not yet begun, and it has entered the stage of starting the emergency plan.

Only a reminder from Chief Engineer Weng was needed. The staff who controlled the sliding track jacks on both sides of the bridge tower quickly pulled up the switch, and the beacon tower suspended in the wind slowly returned to the predetermined angle under the pulling force, allowing the The value on the monitor completely matched the budget, and the vertical rotation started.

The entire vertical rotation process is slower and quieter than lifting the bridge tower.

Li Feng could even hear the crunching sound of a thousand tons of steel turning in the wind.

Lifting force, gravity, pulling force, firmly control the uneven beacon tower.

Every step it turns is under the control of the engineer, from sunrise to sunset, and finally slides into the designated position under the bright daytime searchlight.

It's just a docking project that couldn't be smaller in the cross-sea bridge project.

However, he could see that Li Feng's spirit was tense.

He didn't wake up from his dizziness until the engineer reported that "the bridge pylon was successfully installed and the welding was applied for".

The quiet air in the room seemed to be awakened by these words.

Weng Chengxian with a dignified expression sighed, and said with relief: "Welding is allowed."

From six in the morning to one in the morning.

A beacon bridge tower locks the last gap between the sea-crossing bridge and the Changlang artificial island, symbolizing the beginning and end of the sea-crossing bridge, from Li'an Port to the depths of the South China Sea Strait.

The good news in the news broadcast came later than the news that Lufeng sent to Yin Yiqiao.

Those people who open their eyes in the early morning will know the shocking news that "the South China Sea Tunnel Cross-sea Bridge landed on Changlang Artificial Island" when they pick up their mobile phones!

The landing of the cross-sea bridge on the artificial island of Changlang means that this passage has run through the journey from Li'an Port to Changlang.

That iron-gray bridge is like a reed crossing the South China Sea. With the extraordinary ability of the Chinese, it has realized the miracle of crossing the river with a reed in the myth.

The news from Li'an Port to Long Lang Island occupied precious 6 minutes in the news broadcast.

Netizens who were hotly discussing the news of the cross-sea bridge finally saw the long dragon crawling on the sea level from an official perspective.

It cut through the wind and waves, went through the undercurrents, and found the middle station of the blue ocean.

The powerful body flashed by in the fleeting light, and the familiar beacon tower shape became the protagonist in the news field of vision, high above the South China Sea, located on the artificial island of Changlang, as if a torch would be lit at any time to point directly to the treasure island on the other side !

"The bridge is more than half built, and the rest is the tunnel!"

"I saw news that construction of the tunnel has already begun, but I don't know how far it has been built."

"So fast? Can we go to Baodao by car without waiting 15 years?"

The official broadcast of Glimpse of the South China Sea has become a booster for ordinary people.

Most of China's infrastructure projects are completed ahead of schedule. Since the cross-sea bridge enters the Changlang artificial island so smoothly, there must be no problem connecting the other section to the Jinyu artificial island!

The news about the South China Sea Tunnel is unprecedentedly hot. Even people who don't pay much attention to this bridge abroad can find it on various news websites.

After all, this is the only super sea-crossing bridge and tunnel in the world, and it is also a key channel for China and Taiwan to be lingering for decades.

They thought that after Typhoon Lisu, the bridge encountered difficult construction difficulties, so they lost the news.

Who knows, the Chinese are still working hard, amazed the whole world!

The cross-sea bridge connects to the artificial island of Changlang, bringing unprecedented enthusiasm.

In the video call between Yin Zhili and Yin Yiqiao, they both happily talked about how the arrogant British architects praised China's construction capabilities.

"I have no doubt that when the South China Sea Tunnel is completed, they will want to invite the Chinese delegation to participate in the construction exchange meeting again."

The old man laughed confidently, "It's just that I don't think Xiaofeng is willing to go. After all, Moranis' rude words made him very unhappy."

He was immersed in happiness, but found that his grandson was absent-minded.

"What's the matter, Joe? Something's wrong with the lighthouse?"

"No, no." Yin Yiqiao came back to his senses, "The museum will pass the inspection next month. The government of Li'an Port has already set the specific opening time, so there is no problem."

"Then why do you look..." Yin Zhili didn't know how to describe his expression, "Full of worry?"

Yin Yiqiao reluctantly smiled, "I'm worried about the construction of hotels and commercial streets. You know, I used special new materials, so I encountered a little difficulty."

Architectural difficulties are nothing to them at all.

Yin Zhili smiled and said: "It's fine if you have difficulties, then you should think about it and worry about it, I'm going to rest."

"Well, good night Grandpa."

Yin Yiqiao bid farewell to Yin Zhili as usual.

After the video call ended, his gaze slowly sank, his expression still so solemn that he couldn't hide his worry.

It has been four days since the news that the cross-sea bridge was successfully connected to the Changlang artificial island.

It has been two and a half months since Li Feng said that he would go to sea for a month or two.

In the news broadcast, the progress of the cross-sea bridge project was extremely smooth, and there was no bad news.

The news articles that Yin Yiqiao can search are also continuing to tell the story of the engineers of the Nanhai Tunnel Cross-sea Bridge going through hardships and overcoming difficulties.

However, Li Feng did not come back.

If everything goes well with the Nanhai Tunnel Cross-sea Bridge, it is impossible for him not to come back.

The author has something to say: The vertical rotation lifting construction method was first used in the construction of the Jiuzhou Waterway Bridge, one of the three main navigation holes of the Hong Kong-Zhuhai-Macao Bridge. The ship lifts the upper tower column to the bridge deck as a whole, and then uses the jack on the hanger to lift the upper tower column to complete the overall vertical rotation.