Reborn Technology Scholar

On the morning of the fourth day, the meeting continued

"Academician Qin, what do you think of the Bohai Tunnel project? Is it necessary to invest in the construction? Can the engineering difficulties encountered be solved?" The leader directly pointed to Qin Yuanqing's general.

In the conference room, everyone couldn't help but turn their attention to Qin Yuanqing. They had discussed enough in the past three days. Qin Yuanqing didn't say a word, but kept recording. But they all knew that Qin Yuanqing, who was sitting next to the leader, influenced

So powerful was their power that even their three-day discussion was not worth Qin Yuanqing's opinions.

They have all heard that China has launched ten large hydropower stations and ten third-generation nuclear power plants. It was because Qin Yuanqing made a suggestion that the power generation capacity needs to be greatly increased, so the superiors decided to invest in the construction. This is a large-scale project worth trillions of yuan.

Invest.

Not only are there ten large hydropower stations and ten nuclear power plants, but they also include wind power stations, tidal power stations, solar power and other new energy sources that have been launched since last year to prepare for the peak power consumption period brought about by the gradual popularization of lithium-air batteries.

In the past, the annual Bohai Tunnel planning meeting lasted only one day. It basically repeated the same old tune without much substantive progress. Why? Not everyone is aware of it. For such a large project, the decision-making power does not lie with the provinces and cities.

First level, but in the hands of a higher level, what they do is actually preliminary demonstration work and superficial work.

For example, in the early stage of geological exploration, one hole was drilled every 5 kilometers, which was only used to initially judge the geological structure. Once it reaches the substantive stage, a hole will be drilled every 100 to 200 meters to provide detailed geological data for the design.

The local leaders could not help but look at Qin Yuanqing, with expectations and worries in their eyes. They hoped that Qin Yuanqing would make a positive suggestion. In this case, the Bohai Tunnel project would really enter a substantive stage, which would be important to both Lu and Liaodong provinces.

It is of great significance, and it is conceivable that it will boost the economy. Once Qin Yuanqing denies the Bohai Tunnel plan, it is not polite to say that the Bohai Tunnel will not be considered in the 14th Five-Year Plan, let alone entering the substantive stage now.

plan, this is undoubtedly a major blow to the Bohai Tunnel plan.

It is impossible for either Liaodong Province or Shandong Province to invest more than 200 billion yuan in project investment. Although the government tax revenue of the two provinces is increasing every year, the actual annual tax balance is not much. After all, the two provinces

They are both big provinces, and there are many aspects that require expenditure.

If it is an investment of 10 billion or 20 billion yuan, the provincial level government can grit its teeth and get it, but this project investment of more than 200 billion yuan requires the power of higher authorities.

Qin Yuanqing put down the pen in his hand, turned on the microphone in front of him, coughed three times, and attracted everyone's attention: "Everyone has said before that from the perspective of economic construction, in order to strengthen the radiation of the Beijing-Tianjin-Tangshan Economic Belt to the surrounding areas,

The connection between Shandong Province and Liaodong Province is of great strategic significance. Therefore, my personal opinion is that the Bohai Tunnel project is necessary and urgent."

“The cross-sea channel model proposed by Professor Liu at the previous meeting used 10 islands including South Changshan Island, North Changshan Island, Daheishan Island, Xiaoheishan Island, Tuoji Island, Beihuangcheng Island, and Nanhuangcheng Island.

As natural piers for building bridges and natural gas holes for building tunnels, this is a good idea. Even for the smooth construction of the project, artificial islands can also be used, and a large amount of earth and stone produced by shield tunnels can be used for artificial islands.

Improve the conditions for building cross-sea passages!" Qin Yuanqing affirmed some of the bright spots that had appeared before and made improvements at the same time.

"The 'South Bridge and North Tunnel' and 'South Subsidence and North Shield' proposed by everyone before are very constructive. From a technical point of view, the South Subsidence and North Shield technology is the best solution in my opinion to build the Bohai Tunnel, and then use these natural islands

As a natural gas hole and a place of refuge. As for the connection between the submerged tunnel and the shield tunnel section that has been discussed before, it is completely possible to use the island to build the connection section, and build the submerged tunnel section and the shield tunnel section into the island, and then carry out

Anti-seepage treatment." Qin Yuanqing said.

If the buried tunnel and the shield tunnel are directly connected, the connection construction will be very difficult. In theory, there is no problem. However, the fault tolerance rate during construction is too low, not even a 1 cm difference, which is very difficult for construction.

The requirements are ridiculously high. Even if China is an infrastructure maniac with various advanced construction technologies and rich experience, it will fail in nine out of ten cases when faced with such ultra-high connection requirements.

In this case, directly choosing an island as the connection will reduce the difficulty of construction. Although the cost will increase, it will only increase the construction cost by about 1 billion yuan, which is completely acceptable.

At this meeting, Qin Yuanqing clearly felt that these experts were still subject to the previous thinking inertia. On the contrary, they tried to save investment as much as possible and save money for the country. One dollar could not wait to be broken into two dollars and used, and he felt that they had not saved as much as possible.

To invest, to make the minimum investment, is to be guilty of the country and the people.

China has created great construction projects one after another, and has earned the title of infrastructure madman. In the process, it is unknown how much money it has saved for the country. But you must know that times have changed. Now the country is rich. Even if it increased investment in infrastructure facilities last year, it would still be a waste of money.

In fact, the central government still has a surplus.

Qin Yuanqing felt that time is money and time is life. If an extra billion investment can complete the project one year ahead of schedule, it is completely worth it.

Even if Qin Yuanqing felt it was necessary, there would be no problem in artificially building an island, as long as he spent more money.

Everyone else frowned after hearing Qin Yuanqing's words, but soon they couldn't help but were stunned, because they discovered that this method could undoubtedly reduce the difficulty of construction and shorten the construction period, but it only required a lot of investment.

Even though it's only one billion or two billion yuan, it's still a lot of money and can almost build a 100-kilometer highway.

What's more, if the island is built artificially, the cost will increase even more.

Just listen to Qin Yuanqing continue to say: "From the previous discussions, what we have been considering is only for vehicles or trains, or trains and cars. From the current point of view, cars are becoming more and more popular, and trains are also the main means of passenger transportation.

, In fact, to comply with the national strategy, we still have to consider vehicle transportation and automobile transportation at the same time. In this case, although the cost will reach about 350 billion, the benefits will be the largest."

When everyone heard this, they all took a breath.

According to the past situation, if the investment is now 350 billion, then although there is no need for land acquisition, demolition and resettlement in the sea, Yancheng City and the Liaodong Peninsula connection section do need land acquisition, demolition and resettlement. Considering the conditions encountered during construction, generally speaking, in reality

Invest 450 billion.

This means that the Bohai Tunnel will become the largest single investment project since the founding of the People's Republic of China, and the investment in the project will exceed that of the Three Gorges Project.

However, this does not take into account inflation. If it is considered inflation, it is not necessarily true. The number of immigrants from the Three Gorges exceeds 1.4 million people. According to the current prices and compensation standards, it is an astronomical figure.

"During the engineering design and construction stages, it is necessary to fully consider the tidal effect." Qin Yuanqing said: "The tidal effect in the Bohai Strait is not weak, but the tidal level difference rarely exceeds two meters. According to my preliminary calculation, it will have a certain impact on the project.

, it is recommended that supercomputing simulation be carried out.”

"It is completely possible to simulate the entire supercomputing process during the design phase," Qin Yuanqing said.

The powerful function of supercomputers is reflected in this aspect. It can simulate the entire process and find a series of problems and difficulties as early as possible in the design stage, so as to propose solutions to the problems, instead of frequently problems occurring in the construction stage and then solving them.

It is undoubtedly detrimental to progress.

"Academician Qin's suggestions and opinions are forward-looking. Next, the Bohai Tunnel project will enter the substantive stage, and we will strive to complete the design stage in one to two years, and enter the construction stage around 2019-2020," the leader said.

It can be said that the leader's words have been finalized. The Bohai Tunnel will enter the substantive stage from today and officially enter the construction sequence.

Qin Yuanqing did not attend the next meeting, but returned to the capital. Next, a headquarters will be established for the Bohai Tunnel Project, which will be under unified command from superiors, with the participation of major provincial and municipal government leaders, to promote the design, construction and procurement of the Bohai Tunnel Project.

For example, once the route is determined, the local government must start land acquisition, demolition and resettlement to ensure that construction can be started immediately when the construction drawings are completed.

For projects led by local governments, land acquisition, demolition and resettlement are a difficult problem, but for national-level projects, land acquisition, demolition and resettlement are not a problem. In terms of national will, the people are always full of obedience, sacrificing the individual to fulfill the greater self.

Sure enough, less than half a month after Qin Yuanqing returned to the capital, the Bohai Tunnel Project officially held a media conference. The Bohai Tunnel Project established a general headquarters, with a superior leader as the commander-in-chief, and leaders from Shandong Province and Liaodong Province as deputy commander-in-chief. At the same time,

The general person in charge of the project and the chief engineer of the project were announced. The total investment in the entire project will be as much as 450 billion yuan, equivalent to 76 billion US dollars.

Once reported, it shocked the whole world, because such a large investment not only created a record for the largest single project investment in China, but also created a record for the largest single project investment in the world.

Even China's Three Gorges Project has a total investment of just over 200 billion, and the South-to-North Water Diversion Project has a total investment of about 500 billion. However, that is a multi-phase project and includes a large amount of land acquisition, resettlement and demolition. As for the Bohai Tunnel Project, the total investment is basically

Engineering construction part.

The world was originally surprised by China's annual GDP growth, but now it is even more shocked by China's financial strength.

This huge news directly covered up Qin Yuanqing's previous statement of withdrawing from future Nobel Prize nominations. It also surpassed Boeing's heavy blow, and surpassed the news of the hacker war between the red and black sides. It became the most important news in China and the world.

The biggest news is that countless design units and construction units have heard the news and rushed to China, all wanting to get a share of this huge investment.