Building madman

There are many underground construction methods, which are roughly divided into'open excavation method' and'undercut excavation method'.

Open cut methods include:

Open and open excavation (pit digging in situ),

Excavation of foundation pit support (similar to house foundation),

Excavate the temporary roof (lay the steel plate), and then carry out the cover excavation...

Undercut methods include:

1. The mining method and the drilling and blasting method known as the spray-anchor undercut method.(Traditional digging holes, supporting, and bombing mountains, such as the Daqingshan River)

2. Float the prefabricated pipes to the construction site on the river surface, and install them one by one in the dredged foundation trench.(The small commodity market dug by Heihu connects the artificial lake section of Xiang County, which is not mentioned above.)

3. When laying pipelines or setting up tunnels, in order not to affect the ground houses and other engineering facilities, use jacks to push the prefabricated pipe sections or box culverts forward with excavation. The scientific name is: pipe jacking method.(The most common construction method of crossing the street, crossing the road, crossing the wall and other obstacles.)

4. Caisson method, also known as caisson sinking method.Before the soil is excavated, a prefabricated section of the overall well wall of six or seven meters long is allowed to sink partially into the soil by its own weight, and then under the cover of it, it sinks while digging.Conventionally, it can only sink 30 to 40 meters, but it can reach about 200 meters with the aid of vibration and mud flooding.(It's like putting the bucket with the bottom removed upside down on the flat ground and letting it sink gradually.)

5. Shield excavation method, referred to as: shield method.This is a fully mechanized construction method, mainly used for the excavation of interval tunnels.The operation method is: let the shield machine advance in the stratum, prevent the surrounding rock from collapsing in the tunnel by supporting the surrounding rock through the shield shell and tube segments, and at the same time use the cutting device to excavate the soil in front of the excavation, and transport it to the Outside the cave, a jack is used to press in at the rear, and precast concrete segments are assembled to form a tunnel structure.

Except for the fifth type of the above technology, even if it does not crack the underground project of the Ice Bear Space Center, Tiancheng has already obtained it by supplementing the data and activating the system technology.

And according to the subway route planned by Tiancheng:

Zaoshi New City—Nansi Lake Wei County—Ji City Guyue Hotel—Canal CBD—Xingyue Bay Square in Xiang County—Xiang County Old Town Hub—Xiaohu Town—Xiaoqing Mountain in Sancha Township—Wen County—East Lake Daxing City—Liang County-Taishi-Jinxiuchuan.

Building bridges when meeting rivers, digging in cities and tunnels in mountainous areas, the whole is similar to light rail, except that the carrying capacity and track type are subway projects, and shield machines are basically not used.

Oh, shield machine!

The scientific name of the shield machine should be called the shield tunnel boring machine, which is used for the construction of soft soil tunnels, including the construction of subways, underground drainage, underground cables, gas pipelines, and so on.

But it is not the only machine for shield construction. There is also a TBM, whose scientific name is a full-face hard rock tunnel boring machine, with superior performance.

However, no matter how the two are distinguished, and how diverse they are, the whole is like a horizontal cylinder.

The main parts are divided into:

The front end is a cutter head, which is driven by electricity for rotating excavation.

The back part is a bucket, which is connected with the conveyor belt for dumping and transporting muck.

Then there are soft rock support machinery, which can spray or pour concrete, or assemble prefabricated blocks, and construct underground channels that resemble drainage pipes through machinery.

At the end, in addition to the conveyor belt that transports the muck, there is also a'jack' responsible for pushing.

For people of this age, the shield machine is a very tall mechanical structure product. Currently, only Germany, Wadao, and North America can independently design and manufacture.

And if you want to use it, you must have an extremely deep understanding of geology, civil engineering, machinery, mechanics, hydraulics, electrical, control, and measurement.

It stands to reason that China is a powerful country in infrastructure construction, and it is impossible not to build a shield machine.

However, intellectual property at the international level is a very complicated thing.

If you want to build, you must either acquire a company with core technology of shield machine, or create a new shield machine different from overseas, otherwise you will have to pay patent fees...

In the future, the German-made shield machine will be about 50 million red banknotes, and the Nissan shield machine will be about 30 million, while the China-made shield machine will only need 20 million.

Therefore, even if this thing is not available for the time being, Ge Xiaotian asked Da Mao to buy a slightly higher price and slightly advanced technology hybrid shield machine for all-round disassembly research.

We all dare to develop a lithography machine that is tens of thousands of times more difficult than making "peace", not to mention the construction machinery that our main business will definitely use in the future?

the most important is……

This is the millennium.

Only the four cities of Beijing, Shanghai, Guangzhou, and Taiwan have subways. All projects belong to the Railway Bureau, and there is no subway contract qualification.

In addition, there is no urban quota limit. In other words, China has not set a city budget of 10 billion, an urban population of 3 million, a total urban population of 7 million, a regional GDP of 100 billion, and an hourly passenger flow of 30,000.(03 years)

If in this period, Tiancheng put on a GIS white coat, drone model aircraft, self-produced shield machine, rail tunnel traffic design and research institute, and then discuss with the railway bureau, and engage in a field construction competition...

High-end, bluffing, fast, subway construction is almost done.

After waiting a few years, Huaxia will issue qualification certification, and it is estimated that Tiancheng can directly own the most advanced kind.

As for project approval...

Ge Xiaotian went to the Xiangxian hub and saw a diameter of 6.8 meters, a length of about 65 meters, and a weight of 160 tons. It has been refurbished with the help of Wadao enterprises. It looks brand new as before. Choose a good angle and take a few photos. , Bring relevant information, go straight to Jifu...

………………

Jifu compound.

Mr. Yu has a lot of ease when handing over the east route project of the South-to-North Water Transfer to Tiancheng.

The original budget was 10 billion, but now it only needs to pay 5 billion for the project, and the remaining money is enough to help the city tide over the difficulties.

What's the difficulty?

Tiancheng ran too fast. In order to keep up, Shao Baitou kept up with the loans he had bothered to apply for and planned to build a township road project connecting the Limin Activity Center.

Borrowed from Tianrong?

Yige xx's mind and wrist, Shao Baitou dare to borrow?

Maybe the kid stared at a certain area of ​​Jishi, just waiting to be a gangster!

You know, local governments cannot borrow from banks, and they can only find superiors if they have no money.

To supplement the finances from Tianrong, it is necessary to transfer land, projects, and fixed assets to achieve the purpose of financial financing.

In case the kid doesn’t need the money when he waits for the repayment, he only needs to “collateralize”...

With the multiple relationships between the two parties, Shao Baitou will definitely not come back.

but……

Mr. Yu frowned and thought for a while.

In order to get Daqingshan, Xiang County threw out the Xiaohu Town Coal Mine.

In order to Naliang County, Ji City threw a mountain range in the northeast.

Yankuang does not belong to Yancheng, but has its own system.

Ge xx is not interested in Confucian Mansion.

East Lake is big enough, Tiancheng can no longer want Nansi Lake, and has the right to manage the canal, Tiancheng will not ask Jishi.

There is Dongshan Jianlian in the urban area, which does not conform to the Tiancheng system...

In other counties, Tiancheng has projects...

After counting, there should be no good places in Jishi.

If you sell a piece of wasteland to Tianrong in exchange for billions of dollars, even if Ge Lao Er is playing a rogue, you still have to build, and Shao Baitou doesn't seem to be at a loss...

Moreover, the excess funds for the management of the canal belong to special funds. Even if he is the leader of Dongshan University, he is afraid that someone will take the opportunity to find fault...

Mr. Yu thought about it and dialed the Tongji City Office, "Or, would you like to try Tianrong?"

"Leader, when Ge Xiaotian proposed this matter, I felt that I was being watched..."

"Try it first, first loan one billion yuan. If the transfer property they ask for is not very important, just agree, and then continue to lend."

"Ok……"

Putting down the phone, Mr. Yu considered it again and again, feeling that there should be no problem.

…………………

Splendid River.

As soon as Ge Xiaotian landed, he received a call from Tianrong.

Shao Baitou came to'loan'!

He certainly knows that local governments cannot lend to banks, let alone private financial institutions, and can only exchange funds for funds through transfers.

"Fortunately, I have been a step slower. If I go to Jifu to talk to the old man about the subway, I have been preparing for a long time, and I am going to fool Shao Baitou's loan.'

Ge Xiaotian looked around, squatted in a corner, took out the subway plan from the file bag, and instructed the director of Tianrong, "Get me all the 2,000 mu of land around each subway entrance. One billion is not enough, just two Ten billion, including the Thai city. By the way, I don’t need a day-to-day financing, but I use my money. Be agile and finish it all as soon as possible today. It doesn’t matter if you lose points.

"It's all undesirable places in the outskirts and remote areas, and some deviate from our existing projects. I am afraid that the young leaders will be happy..."

"It's better if it's bad. It's awkward, including the land in Tai City. Call me after processing."

"Ok!"

Land prices soared as soon as the subway was opened.

If Jishi paid for the subway, Ge Xiaotian would have nothing to do.

But if Tiancheng pays for the subway repair, it must take advantage of it in advance, otherwise, wouldn't it be stupid?

The city disagrees?

Well, I smashed these tens of billions of projects in other places, such as Zao City, He City, and Tai City, bypassing Ji City...

Of course, Tiancheng and Jishi belong to a community of interests. After Shao Baitou knows the truth, he will only be entangled and not angry...

……………

Obtaining the land was originally very complicated, but when it involved the transfer, Jishi was really short of money, and Tiancheng promised to be happy...

This was done extremely quickly.

It’s just that, seeing that the land that Tiancheng wants is either at an average price of 100,000 mu or 200,000 mu, all deviating from the Tiancheng industrial chain...

Moreover, the textile factory dormitory on the west side of Guyuedian in the urban area, which is famous for its dirty and messy work, Jishi offered a high price of 500,000 mu. Tiancheng Chengdu readily agreed...

If something goes wrong, there must be a demon!

the next day.

The new head of the Bureau of Resources, who succeeded Sun Bureau, asked for leave.

The third day.

Shao Baitou, the big leader who personally went on the job, became more and more guilty, and couldn't help calling Mr. Yu, "Leader, is there any news from above?"

"what happened?"

"Ge Xiaotian bought all the wilderness, so there is no development value at all."

"It is estimated that it is planning to build a factory. No, just rent the land for the factory..."

"Yes, the land properties of the two are different, and the transfer contracts are almost all commercial land, integrated land, residential land..."

"strange!"

When the two were puzzled, the secretary stepped forward and handed a note.

'Ge Xiaotian visited.'

"Huh?" A bad idea suddenly appeared in Mr. Yu's heart. This kid seemed to have come to the Jifu compound for the first time!

"Leader, I am here to repair the subway for you!"

Before he signaled the great secret to pick up the kid, a beating sound came from downstairs...

"Subway? What subway?"

"Didn't you say that I can repair the subway for you?"

Stepping into the office, Ge Xiaotian put photos and documents on his desk, "I first bought the world's most advanced shield machine for 50 million yuan. Another 200 million yuan was invested in a super cement plant to produce prefabricated parts in advance. Then invested 500 million, relying on the investment of 4 billion GLONASS system to build a GIS platform to explore the geology and landforms along the way. Now it also invited the Washima Shinkansen technical team and the North American subway technical team..."

Mr. Yu was stunned, "When did I say that you should fix the subway for me?"

"When the graphene storm is over, I'll call you. You seem to be on a business trip. I said to engage in Daqingshan. If you say I have the ability to engage in subway...

"???"

"Leader’s words, I’m sure to keep it in my heart. For more than a month, I’ve been thinking about it all day long... Leaders, plans worth 50 million have been made. If you say no to repair, I’m afraid Damn it!"

"???"

Shao Baitou on the other end of the phone was silent for a long time, "Leader, you seem to have said about repairing the subway..."

"???"

Who are you with?!