Qinggang Xingyue Bay is majestic and has a unique wheel-like community layout;

Yancheng Xingyue Bay is prosperous and has the largest horse racing venue in China and even the world.

Weicheng Xingyue Bay is fragrant for ten miles, has a super food city, and has the most complete future planning.

In the coastal cities of Dongshan, only Zhaocheng on the south side and Yingshi at the mouth of the Yellow River on the north side did not go.

Ge Xiaotian ate watermelon, and after watching the battle between the bigwigs with Longtian Technology as a chessboard, he sighed at the strength of the enemy while reminiscing about his own industry, and then came to Jiaozhou Bay, where construction machinery gathered.

In another time and space, the Jiaozhou Bay Bridge is 36.48km long, which is 10km longer than the Incheon Bridge that Tiancheng will build.

It's a pity that G22, that is, the Qinglan Expressway connecting the Jiaozhou Bay Bridge, has not yet been planned, even if Tiancheng wants to contract, it is only a conjecture now.

What's more, the construction of the Jiaozhou Bay Bridge has another deep meaning: training troops for the Bohai Bridge.

In this way, Tiancheng will definitely not be able to grab the national brand.

However, there are many obstacles and troubles encountered by the bridge across the Bohai Sea, one is national defense, the second is funding, and the third is the earthquake.

The tunnel is 123 kilometers long, and at least 200 billion yuan is needed, but unfortunately, until it is crossed, the funds are not available......

This matter needs to be considered in the long run, and the money will be made first.

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

Today, January 4th.

The wind and the sun are beautiful, and the sea does not raise waves.

Eight o'clock in the morning, in Jiaozhou Bay.

Tiancheng's foreign technical seminar, the second class, will start soon.

The first lesson?

When Dongshan Jianda, Dongshan Art College, and Quyi College were introduced, before the idiom solitaire competition, Ge Xiaotian gave a very one-sided online infrastructure course that did not involve technology.

At that time, no one had joined Jinxiuchuan, and he would definitely not talk about it deeply.

Today, it is different, it is all real, and it belongs to the new technology at the forefront of the home star infrastructure.

At the scene, the young white-headed leaders led the small followers to wait, and the temporary stands around were full of employees.

The online participants include: the Bridge Department of Dongshan Jianda University, the cross-sea engineering major of Tiancheng Secondary School, and many peers......

In 01 years, although the rise of Huaxia infrastructure, most of the technology belongs to the secret of not being passed on, and it is regarded as the treasure of the town by the national brand construction engineering.

Even in terms of college majors, only Tiancheng Vocational Secondary School has opened cross-sea engineering subjects.

Like some contractors with lofty goals and ambitions, this time it can be said that they are willing to spend money to listen to the lectures.

"Welcome leaders at all levels, seniors, seniors from all walks of life, to participate in this Tiancheng open class. ”

"In today's class, we mainly talk about cross-sea engineering, a total of 36 class hours, I am responsible for the early stage, Professor Hu is responsible for the middle stage, and Chief Engineer Liang is responsible for the later stage, and the whole process follows the progress of the Incheon Bridge project, which is completed in half a year. ”

"Without further ado, let's get down to business. ”

"In the past 20 years, construction technology has changed several times, the composition of materials has changed, the design scheme has changed, the construction process has changed, and the thinking of people has changed. ”

"Heavy machinery of all kinds is emerging one after another, countless production tools are dazzling, and the incomprehensible structural drawings are getting thicker and thicker. The valuable works left by many predecessors in the industry have gradually been reduced to references, or even overturned and abandoned...... This is the power of the times. ”

"Studying is a difficult process, most people choose a major, not because of a hobby, but because of good employment, no one wants to work hard for three or five years, but after graduation, they find that the knowledge they have learned has been eliminated by the times. ”

"There is a sentence in Tiancheng's corporate culture manual: theory is always harmful, practice is the truth, and innovation can win in the future. ”

"If you want to be at the forefront forever, the most important thing is not to talk on paper, but to be realistic and explore!"

To this end, Tiancheng will take out 60% of its profits every month to invest in the research of new materials and new machinery, and even spend huge sums of money to learn the most advanced overseas design concepts and introduce the most advanced heavy construction machinery. ”

Because of this, there is today's Tiancheng. ”

Ge Xiaotian adjusted the new generation of SG equipment connected to the optical fiber, and pointed the camera at the cluster of machinery gathered in the sea.

"Equipment, we'll get to that later. Now let's talk about what needs to be paid attention to in the early stage of deep-sea construction. ”

"First of all, life jackets must be worn at sea. ”

Ge Xiaotian mentioned an orange-red vest, "This is a life jacket developed and designed by Tiancheng, with luminous function, mainly buoyant material, which is capable, durable and wear-resistant, and very lightweight, ensuring that even if the user is unconscious, he can expose his head to the water." In addition, it has a multi-functional pocket, which does not hinder the construction and can also keep warm, the original price is sixty-eight, and now it can be won with only twenty red bills!"

“？？？”

Many entrepreneurs suddenly felt weird......

"Secondly, it is necessary to locate and search and rescue devices at sea. ”

Ge Xiaotian picked up a wristband similar to a watch, "This is a positioning device commissioned by Tiancheng to be developed and designed by Longtian, with the function of a watch, waterproof and anti-fall, anti-riot and anti-static, light and easy to wear, which can not only enable users to cultivate the concept of time, but also after its accident, through the positioning equipment, the first time to find the missing person, the original price is one hundred and eighteen, and now it only costs fifty red banknotes!"

Many entrepreneurs: "......"

"Another is that the emergency high-energy compressed biscuits, and the aerospace-grade toothpaste-type food nutrient solution, the two can provide enough energy for the construction personnel in natural disasters, the original price is twenty-eight, and now each only needs five red bills!"

Many entrepreneurs: "......"

"I'm not selling, Mr. Cai, don't look at me like that, it's really a harsh offshore construction environment, changeable climate, long points, scattered personnel, more equipment, inconvenient transportation, limited range of activities, very dangerous! With these three artifacts, the danger factor can be completely minimized. ”

"Of course, we can't put our hopes on things, and we have to manage them properly. ”

According to the category, Tiancheng is for typhoons, thunderstorms, tornadoes, tides, fog and other environments, listing construction specifications, such as equipment reinforcement, house reinforcement, steel pipe pile sandbag maintenance, high tide and low tide to avoid the beach and other precautions, later in the form of propaganda posters, sent to your hands, please use a smart card, or SG equipment download, the poster is beautifully typeset, graphic and text matching, even if you are illiterate, you can understand, and waterproof and moisture-proof, The eye-catching warning function, the original price is sixty-eight, and now each only needs ten red banknotes, and it will never have a Tiancheng corporate icon!"

Many entrepreneurs: "......"

The leader of Huaxia Sanjian, who entered the multimedia room at some point, typed in the chat box: "Can you still start?"

"Let's get started, we're going to get started! But before we get started, let's talk about the lessons. ”

"The first class is indeed an open class, what technology Tiancheng has, what equipment is there, everyone has seen it, and the content of the follow-up lecture will all follow the progress of the project, that is to say, the next 35 class hours will be charged!"

"In addition to the students of Jinxiuchuan, each person has 50,000 red banknotes per class hour, and the packaging price is 1.6 million, and there is a collection of high-quality products at the construction site, all of which are not passed on and are worth the money!"

Many entrepreneurs: "......"

"Okay, the students stay, the seniors and peers from the outside world, let's leave the group. ”

“......”

Waiting for the administrator to kick out the non-student ID, Ge Xiaotian operated the SG notebook and displayed a set of PPT.

"For cross-sea projects, we have to choose the corresponding plan according to the drawing design and the surrounding environment. ”

"Like the chlorination content of seawater, earthquake level, tidal changes, etc., I will not go into detail today, but I will study by myself after class. ”

"If we want to carry out a cross-sea project, we first need an 'operating platform' that will facilitate our personnel to move around and transport building materials. ”

"We can use 'construction trestle to turn water into shore', or we can use 'floating platform in the water', or 'tugboat, floating crane multi-point construction'. ”

"What is the construction trestle? Look at the picture, it is composed of piers and beam span structures, which can directly serve the construction. ”

"However, the trestle is more than a minute, at sea, it is made of Bailey frame, also known as: prefabricated highway steel bridge, is our main operating platform, to undertake the construction of raw materials and semi-finished products and other loading vehicles to drive, the use of a long time. ”

"In the offshore construction code that has just been issued, there are some protective measures for it, such as the tide is coming, and the trestle is avoided by means of throwing rocks and sand bags to avoid the trestle being scoured, so as to ensure the overall stability of the product platform and the depth of the steel pipe pile. For example, steel pipes are used around the trestle to connect in parallel, and the pile-top steel beams and steel pipe piles are welded and consolidated to form an integral steel frame, which is used for flood control and typhoon bearing. ”

"You just need to know what it does, you don't have to go into it, because we have an engineering island with a 'floating platform' structure. ”

"The function of the engineering island is exactly the same as that of the trestle, but it can be moved, it has its own lifting and drilling equipment, or rather, it integrates the two functions of marine transportation and working platform. ”

Ge Xiaotian switched pictures, "The engineering island and transport ships, floating cranes, and other means of transportation, combined with the 'floating island' of the logistics department, form an operation area, that is, our construction environment, so that the sea becomes 'land'." ”

"In this way, we can proceed to the next construction link, according to the construction drawings, structural drawings, and design drawings, to build cast-in-place piles and prefabricated T-shaped bridges,"

"The 1,000-ton prefabricated T-beam is responsible for logistics, and our front-line personnel are responsible for cast-in-place piles. ”

"The technology of deep-sea cast-in-place piles is fundamental, due to the characteristics of concrete, it cannot be directly constructed in the water, and the concrete that can survive for 50 years on land may only last for one or two years in the sea, our purpose is to isolate the water from the pile foundation, ensure the quality of the project, and let the cross-sea bridge continue for a hundred years!"

"There are many options to build deep-sea piles, and when the water is not deep, we need to build island cofferdams. ”

"It is to build a small island with sacks filled with soil and gravel, and the outer side is a closed steel gondola or steel sheet pile, after the completion of the filling, the sediment is hollowed out, and the seawater is continuously pumped away with a water pump, and a cofferdam is formed, and the construction of pile foundations and bridge piers can be carried out like the ground in the cofferdam. If the water is too deep to be able to cofferdam, it is necessary to use the pile foundation method, the piling ship will drive a number of steel pipes to the bearing layer, the depth varies from 70 to 90 meters, and then fill the reinforced concrete inside after the drainage is completed, and the pile foundation is firmly fixed in the water, so that the bearing platform and bridge pier can be built above. ”

"In the deep sea, we use drill rigs and drill bits that match the terrain. ”

"The drilling platform, as mentioned earlier, uses an engineering island. ”

"The production of steel cages and steel casings is also on the engineering island. ”

"The next step is to bury the steel casing and the drilling rig needed for the burial operation......"

"Because we are building deep-sea piles, the hole diameter is large, the geology is complex, the overburden is thick, the casing cannot reach the rock layer when it sinks, and the hole formation time is long, so some effective measures should be taken to avoid hole collapse during the drilling process. ”

Ge Xiaotian opened the simulator.

"For example, during drilling, the tide outside the hole affects the water head in the hole, and the head can be controlled by using internal and external water pumps......"

"For example, properly control the footage speed, and when drilling to the bottom of the casing, repeatedly throw flakes to strengthen the arm guard......"

"For example, seabed silt is also used as a drilling mud, which is characterized by non-dispersion and high viscosity, which can effectively avoid hole collapse ......"

"The latter link is hole clearing. ”

"The purpose of hole cleaning is to remove the original mud, change the mud performance in the hole and remove the sediment at the bottom of the hole......"

"It should be noted that when changing the slurry and cleaning holes, it is necessary to maintain the water head to prevent the hole from collapsing. ”

"The next step is to install the reinforcement cage and clean the hole twice......"

Ge Xiaotian switched the 'mud positive circulation diagram' and 'mud reverse circulation diagram' to 'pouring underwater concrete'.

"After the completion of the secondary hole cleaning, the underwater concrete should be poured immediately, the amount and pouring time should be calculated according to the specifications of the pile, and the concrete pumping method should be used, and the collapse should be controlled at 12cm-18cm. ”

"Due to the long pouring time, we can mix our self-produced university water retarding agent into the concrete to slow down the initial setting time of concrete and avoid the blockage of the pump pipe and conduit ......"

"There should be no interruption during perfusion and the ...... should be performed in rapid succession"

"In addition, our construction belongs to winter, and we need to consider the problem of freezing and condensation......"

"The other is the grouting of the pile bottom, which improves the bearing capacity of the pile bottom and reduces the settlement ......"

Ge Xiaotian finished talking about the 'bored pile construction technology' in one breath and released the important test points of this class.

Construction preparation→ the operation platform→ pile lofting→ burying the casing→ drilling rig in place→ drilling, solidifying the hole→ emptying→ talking about air inspection, hole quality → making reinforcement cage, making grouting space, assembling conduit (three at the same time), → lower reinforcement cage→ lower conduit→ pouring underwater concrete→ pulling out the casing → pile, quality inspection → pressure drop at the bottom of the hole→ done!

"Of course, these are just the simplest construction plans for our Tiancheng, and perhaps some people in the outside world have adopted them, and in the third lesson, we will list Tiancheng's own unique subsea construction technology, and we will be here today. ”

Ge Xiaotian sent the encrypted courseware to the students and employees.

These things, put in the future, almost every construction company has, but in 01, plus detailed parameters and technical guidance, the baby is very.

For example, the entrepreneur who was kicked out wanted to understand deep-sea construction, but he didn't learn it or teach it, what should he do?

Pay your tuition!

50,000 yuan for one class, 36 class hours, remove the first class for free, one person for 1.6 million follow-ups, 16 million for 10 people, and 160 million for 100 people......

It's all money!

As for the other party, will they grab their own projects......

Do you have the equipment, do you have the funds?

And, when they learned, Tiancheng's technology also iterated.

As he said before, the times are advancing, and if you don't develop it yourself, you will be eliminated sooner or later.

Ge Xiaotian turned off the camera and lit a cigarette with Meimei......

At this time, Director Sun, who stayed in Nanbangzi, called.

"Boss, it's done!"

"So fast? Isn't it tomorrow that the bidding will end and the results will be announced the day after tomorrow?"

"France offers 3.5 billion Franklins, which will be built in seven years, and South Stick asks for five years, which will definitely not be achieved. The third brother quoted 1.3 billion Franklin, which was built in four and a half years, and the south stick did not dare to use it. Wajima offers 1.6 billion Franklins, built in five years, and the design is very good, and it is also our main competitor. ”

Director Sun paused slightly, "However, Wajima Construction was kicked out by the local construction workers of the South Stick of England United by means. It is said that the local construction workers of Nanbangzi learned about the bids of various enterprises through their connections, and thought that Wajima was the most competitive, so they secretly did something. As for us...... 10.3 billion, it is estimated that they think we will definitely be eliminated. ”

"How did the local builders who joined forces with England get eliminated?"

"It was reported by KS. ”

"This teammate...... It's amazing! Ready to start!"

Ge Xiaotian put down his mobile phone and was just about to close the SG notebook when Da Mao called.

This is a rare occurrence.

"What's wrong?"

"Boss, the chairman of Huaxia Petroleum Refinery, I want to ask you to meet. ”

"Huh?"

Ge Xiaotian's eyes narrowed, "Tell him that if he doesn't have time, he will either come to the sea to find me." ”