"If we can't open the mountain, dig through the mountain!" Li Ke looked at Yan Lide and said, "If you can't avoid the mountain, you can dig the tunnel directly, and the tunnel is not too rare." ”

Yan Lide and the others were a little stunned, tunneling? Dig through the mountains directly? This......

Well, the difficulty is much lower than that of the direct opening of the mountain, but it is not much lower.

Li Ke didn't think it was that difficult, who let him have the experience that countless ancestors had tested with their lives? It was only when he came to ancient times and implemented these techniques that Li Ke understood that although the technology was precious, it was also valuable to sum up the experience over a long period of time!

There is no trick to this experience, but once it is summed up, the cost savings and other things are huge.

Take the excavation of tunnels as an example, the high-end product shield machine not to mention, the use of shield machine excavation tunnels is more limited, even in the era when domestic shield machines dominate the global market in later generations, most of the highway and railway tunnels are still carried out by traditional tunneling methods.

But many people should have an impression, at least Li Ke remembers that when he was a child, he read many stories about construction soldiers digging tunnels, tunnel collapses and then rescue.

However, after entering the new century, engineering tunnel collapses are almost unheard of, which is brought about by technological progress and experience progress.

The new detection technology avoids more dangers, and the main improvement is the construction sequence and concept during the tunnelling process. There are some techniques and principles that are not difficult, but they have not been discovered before, or have not been studied.

Once the research is out, it can be easily implemented.

In fact, the modern shield machine in later generations is a kind of machine obtained by combining the processes of human tunneling and gradually optimizing one by one.

Although the world's first shield machine was invented as early as the 19th century, the gap between the two, the process and sequence of construction are too different.

It's like the difference between fireworks and cannons, the principle between the two is the same, but the technology gap is not half a star.

Li Ke has a complete tunneling process in his hands, and more importantly, he has the country's exploration data on all aspects of geological structure, and these exploration data are preserved.

Therefore, the tunnel can also be dug slowly in the future, as long as the forging control method of high-strength cement is solved.

"It seems that according to His Royal Highness, Datang's finances will probably be short of money in the next few years." Huang Fulin said with a wry smile, you don't have to think about it, you know that the cost of tunneling and building bridges is very high.

A Weihe bridge requires two reservoirs, and the Yellow River bridge must not be doubled? Isn't it cheaper to dig through a mountain than a bridge? Now the annual income of Datang Finance is only two libraries, and a bridge will cost four libraries, and how much does it cost to build railways all over the country?

Thinking of the terrifying financial consumption, Huang Fu Lin smiled bitterly, when the finances were tight, wouldn't he, the secretary of the Ministry of Finance, be under great pressure?

Huang Fulin's words made everyone look at each other, as if this was indeed the case.

"Of course, the lack of money in Datang's finances is inevitable, but this does not affect our construction of national railways, and my personal opinion is that Shangshu Province should promote a national railway construction plan, which will be implemented in several years."

"For example, the 4 billion infrastructure plan, or the 40 billion infrastructure plan, and so on." Li Ke said with a smile.

Everyone was numb when they heard this number, not to mention 40 billion, 4 billion yuan...... With the current financial situation of Datang, I am afraid that it will take decades? Even if Datang's finances are growing every year, this is terrible.

"This ...... Your Highness thinks twice, I don't think we can do this, it's not that the old minister opposes the construction of the railway, but can our plan not be so radical? We can put this time in twenty or even thirty years. ”

"The rise of an empire can not be achieved overnight, if the governance of a large country is small, if the step is too big, a country is easy to collapse. Therefore, the minister felt that this matter should not be too fast, but should be stable. Wei Zheng rarely came out to object.

Li Ke glanced at him, Wei Zheng: "......"

Your Highness, you don't think I'm useless, I have to object to this.

After a pause, Wei Zheng hesitated and asked, "Or, Your Highness, do you have a better way here?" ”

"Well, actually, I don't want to say it." Li Ke sighed and said helplessly.

Everyone: "? ”

Everyone looked at each other a little, I don't know why His Highness said this, what is there not to say? We'll know how to do it when we say it.

"You haven't learned a lot of the knowledge I've given you." Li Ke sighed and shook his head, looking like a child who could not be taught.

Seeing Li Ke's pretending to be forced, Li Shimin was full of black lines, and he almost kicked it, but fortunately he endured it.

kept muttering a few words in my heart, "let him be sparkling", "let him be swaying", "this is a good thing", "all are good things".

"Forget it, let's be honest with you, when I renovated Chang'an City, do you remember?" Li Ke said lightly.

"Yes." Everyone nodded their heads and spoke.

"Do you know how much money I spent?" Li Ke asked lightly.

"More than eight million times." Everyone opened their mouths one after another, didn't you announce this number, Your Highness? Although they guessed that there might be a discrepancy in this number, especially now that His Highness asked, there must be a discrepancy, but they don't know what the exact number is.

"I didn't want to tell you, but there are some things you can't understand, since that's the case, then I'm having a showdown, and I won't pretend. I'll tell you directly, to renovate the entire Chang'an City, strictly speaking, I didn't spend a penny. If I have to say, I probably made some money. Li Ke said lightly.

"Huh?!" At this moment, everyone was completely confused, and they didn't spend a penny? Are you still making money?

Everyone is stupid, their heads can't figure out how Li Ke didn't spend a penny anyway, it's impossible! The roads in Chang'an City, the walls of some fangs, and the dilapidated houses of many people were all renovated by the way, and those who hired the people's manpower and material resources, but you told me that they didn't spend money?

That's impossible! Everyone looked at Li Ke with shocked faces! If this answer hadn't been said by Li Ke himself, they wouldn't have believed it anyway.

Even Li Shimin was a little shocked, Li Ke told him about it, but Li Ke didn't make it clear at that time, let alone go into detail, Li Shimin just thought that Li Ke's cost was far lower than the outside world's expectations, he didn't spend eight million yuan, and he probably spent one or two million yuan.

But...... Didn't spend money, but still made money?