Lin Feng was invited to the office by Political Commissar Li again, and he was still entertained with top-notch jasmine tea.

Lin Feng didn't care, it rained a little, and he needed hot water to warm his body, so he took a few big sips.

I am used to drinking Hongyun tea, and occasionally taste authentic local tea, which is also a unique flavor.

"Brother Lin, Mayor Qin, I've tried my best to get in touch with you, it's time to discuss our matter. ”

Lin Feng smiled: "It's easy to say." ”

Let Political Commissar Li take the lead to build the subway, to be honest, it is also Lin Feng, and it is impossible for anyone else to have this face.

"That's good," Commissar Li said with a smile, "before that, I want to know how big a machine of yours can dig up?"

"20 meters in diameter, is that enough?"

"Absolutely enough!"

Political Commissar Li took out a detailed map of the military region's station, asked the guards to invite the commander of the military region, and after studying the map for a while, the two finally decided to conduct a test within the military region.

Lin Feng drove the shield machine to the designated location, and after surveying the terrain, he drove the machine to start digging holes.

Boom Boom Boom –

Due to the complexity of Political Commissar Li's requirements, the diameter of the hole is also 10 meters large, so the excavation speed is a little slower.

But it was only a little bit, the shield machine running at full power still maintained a speed of 1 m/s and was moving, and a huge tunnel with a length of one kilometer was dug in ten minutes.

The commander of the military region is a white-haired old man with the rank of general, with a dignified face and bright eyes. Lin Feng met him for the first time, and he felt like a hidden sword, revealing a faint fierceness all over his body.

Together with Political Commissar Li, he walked in the empty tunnel, and he could hear a faint echo when he spoke.

"Arrange all kinds of tests at once," Commissar Li said to him, "and if it is possible, it will be a great achievement." ”

The commander nodded, and gave a series of orders to the guards beside him.

Lin Feng faintly heard what explosives, what guns, what thunder, and felt that this old man was really, fierce enough.

When he returned home, it was already past 10 o'clock in the evening, Lin Feng looked at the news discussing the rescue operation on the Internet, and even the trolls and the Wumao Party did not come out to comment, and they were all happy.

As a real behind-the-scenes hero, he washed and slept contentedly, thinking about how much money he could make if he could really take down the subway line?

In the next few days, Lin Feng enjoyed the quiet campus life without distractions, carefully waiting for Mayor Qin's invitation.

As a result, Mayor Qin's phone call did not wait, and he waited for Political Commissar Li's phone first.

"The test has already had results," Political Commissar Li took Lin Feng to the tunnel, "and the results are ideal." ”

Lin Feng walked in the tunnel full of the smell of gunsmoke, and found that many places on the inner wall of the tunnel had been smoked to change color, and there was a place of more than ten square meters near the end, and cracks like spider webs actually appeared.

He couldn't help but be shocked, although the inner wall of the tunnel is not as good as supramolecular materials, it is more than 10 times stronger than ordinary steel, and it is also resistant to high temperatures, with a thickness of 20 centimeters.

To make such a crack in this steel plate, which is equivalent to two meters thick, God knows what happened here.

"Don't be surprised, don't worry," Political Commissar Li comforted him when he saw his abnormal expression, "Here we use 10 times the blasting power of conventional missiles to do this, which is simply impossible under normal circumstances, so the ministry has agreed to let you help us build a tunnel first." ”

Having said that, Lin Feng was still a little uncomfortable in his heart. He's a perfectionist and wants to be flawless in everything.

"No, Commissar Li, even if it is 10 conventional blasting power, it is still possible, right? I am not afraid of 10,000, I am afraid of what if, so I think my machine still needs to be improved. ”

Political Commissar Li patted him on the shoulder, admired his spirit of pursuing perfection very much, and said in an appreciative tone: "Brother Lin, on behalf of the country, I thank you for this attitude of striving for perfection, and I deeply hope that you can complete the improvement as soon as possible." If you have any difficulties, you can also ask us and we will try to meet all your requirements.

"Do you estimate how much time it will take to improve?"

"One...... Two days. ”

Political Commissar Li: "...... Let's go to the map first. ”

Following Commissar Li back to his office, he asked the guards to take out a brand new map of the world, and then used a black marker pen to draw a circle around the location of the military district.

"We're here. ”

Then two circles were drawn on the west side.

"Over here, Larsa and Barikagas. ”

Finally, he connected the three points: "If you calculate the straight-line distance, it is about 3,300 kilometers." ”

Lin Feng took a breath of cool air when he heard this, the 3,300-kilometer tunnel, this is definitely the largest project in history, it seems that the country is ready to make a big deal this time for the border matter.

Now that the Sichuan-Tibet Railway has been planned, it will be ready to start construction at the end of the year, and the planned construction period is 8 years.

If you follow the most common standards, the cost per kilometer is at least more than 80 million, plus the mountains and mountains along the way, maybe more than 100 million.

And the most worrying thing is that in the event of a major geological disaster or sabotage by the enemy, it will directly cause the interruption of transportation, and even heavy snow will have a serious impact on the railroad tracks.

And the difficulty of construction, as well as the transportation and scheduling of materials, is the bigger problem.

If Lin Feng directly passes the tunnel, it will only take 38 days to open the tunnel for 3,300 kilometers. As for laying rails in the tunnel, it is even simpler, and there is no need for a roadbed.

Lin Feng's shield machine can even be excavated and backfilled to form a near-semicircular shape. A tunnel with a diameter of 15 meters can be dug to create a two-way track.

The key is, how to charge.

The railway subgrade accounts for about one-third of the overall cost, and the tunneling accounts for almost half of the overall cost.

If calculated at the minimum of 80 million one kilometer, 3,300 kilometers is 132 billion, and when converted into dollars, it is 20 billion.

accidentally rushed to the top of Forbes in China.

And it's not a total asset, it's cash, and the richest man can't compare it.

But can it be counted like this?

Lin Feng felt very entangled.

According to his principle, you get what you pay for.

But he knew that the military role of this long tunnel was far greater than that of civilians, and it was a project that the country was destined to lose a lot of money.

Although he was a businessman, he was also a businessman with nationality.

So in such a thing, it's actually okay to give a discount, the key is that the cost on his side is actually quite low, and the speed is fast, the price is too high, and it feels like he is pit the country's money.

"10 million per kilometer," Lin Feng tried, "includes a ventilation space for every kilometer and a 200-meter-deep ear piercing for 5 kilometers." ”

Political Commissar Li looked at him for a long time and couldn't come back to his senses.

It's just too cheap!

With only 33 billion, the tunnel can be opened in more than a month, and it can be opened to traffic in three months at most, what else can he say?

He pressed Lin Feng's shoulder heavily: "Brother Lin, on behalf of the people of the whole country, I thank you for your selfless dedication!"

"I will report to the ministry and commission immediately, and you should also improve the equipment as soon as possible, and we will strive to start construction in the next few days! The Spring Festival money will strive to connect the railway, so that our soldiers can go home for a good New Year!"

"This is too anxious, isn't it?" Lin Feng said casually.

"We must be in a hurry," Political Commissar Li said with a solemn expression, "Now that the mountains are covered with heavy snow in Tibetan areas, and the transportation of materials is extremely inconvenient, where are our soldiers suffering?" And when the snow melts next year, who knows if those Ah San will make trouble? So it's time to work hard for you for a while. ”

"Me?"

"Yes, you can't entrust this to someone else, you have to operate the equipment yourself. ”

Lin Feng suddenly had a bitter comparison, and he didn't see the light of day for more than a month!