Wentang

Chapter 751
"The vertical one goes south from Liaodong to Lingnan seaside." Yue Shan drew a line on the map with his fingers, and the track was about the same as that of the Beijing-Kowloon Railway in his previous life.

But the northernmost point of this railway is not Beijing, but goes deep into Liaodong and goes directly to Fuyu City.

"Once this railway is completed, the north and south of the Tang Dynasty will be more closely connected. At that time, we will no longer have to worry about the alien race in the east of Liaodong."

He drew another horizontal line with his finger, and said: "The horizontal railway Jinhai Road or Jiangsu-Zhejiang Road is the starting point, passing through Chang'an and passing through the Hexi Corridor to the Western Regions. After this road is completed, the desolate Western Regions will not be able to stop our footsteps."

"Our army and food supplies can be continuously transported to the Western Regions by railway, and then continue westward from this point to compete with the Arab Empire established by the Green Sect."

Hearing his introduction, Li Shimin imagined the scene he described in his mind, and felt excited.But he immediately woke up and said:
"Your idea is very good, not to mention whether Datang has so much steel. The road is full of mountains and dense rivers. How are you going to overcome these natural dangers and build the railway?"

Yue Shandao: "The Tang Dynasty is very large and has various terrains. The difficulties we face in building the railway are not only mountains and rivers, but also swamps, wetlands, etc. permafrost problem."

"Every place has its terrain conditions. The road construction standards applicable in the north may cause problems in the south."

"So when building railways, we have to consider the different geological conditions in various places and come up with targeted solutions. So if you want to use railways to run through the country, there are so many difficulties that you can't imagine."

Li Daliang was on the verge of crying. He thought that a big river bridge would be difficult enough.I didn't expect that compared with the real difficulties, this is not worth mentioning.

Li Shimin's face was also extremely ugly, but instead of being angry, he said seriously: "Since you know these problems, do you have a solution?"

Yue Shan said solemnly: "The method is very simple. If you encounter a river, build a bridge; if you encounter a mountain, find a way to go around it; otherwise, dig a tunnel."

Li Shimin asked: "Tunnel?"

Yue Shan thought for a while and said, "Does the sage know the Longshou Canal dug during Emperor Wu of the Han Dynasty?"

Li Shimin said: "Of course I know, what is the relationship between the tunnel and Longshou Canal?"

Yue Shan said: "Shangyan Mountain is on the road of Longshou Canal. The craftsmen at that time thought of a way to make a hole in this mountain with a width of ten miles, so that water can pass through the hole. This hole is a tunnel. "

"Since tunnels can pass through water, they can also pass through trains. So if you encounter a mountain that you can't go around, dig a tunnel to get through it."

Li Shimin's eyelids jumped, and he said, "Chisel the mountain?"

Yue Shan said: "It sounds difficult, and of course it is not easy to do, but once it is completed, it will solve the traffic problem once and for all. It can be said that the merits of this era will benefit future generations."

"Of course, we can't be in a hurry. We must take into account the country's capacity to take it step by step."

"These two railways seem very long, but we can split them into dozens or hundreds of sections and repair them section by section. First avoid those places with complicated terrain, build those sections with flat terrain, and slowly dismantle them. connected."

"And this method of building roads in sections has very high requirements for overall planning, because once a section of road is repaired wrongly, the entire railway may not be connected together."

"It's not just the large railways that have crossed the country in the past two days, but the construction plans of other railways must also be planned in a unified way."

"As far as the Chang'e Railway to be built is concerned, we should not only focus on the short distance between Chang'an and Ezhou, but also think about how to expand this railway in the future."

"For example, in the future we plan to build a railway starting from Lingnan East Road, passing through Chang'an, passing through Taiyuan, and going directly to the prairie."

"Then we have to consider where and how to build this Chang'e Railway, so that it can be perfectly connected with this big railway in the future."

Li Shimin nodded, finally understood what Yue Shan wanted to express, and at the same time deeply agreed.

The railway construction plan really needs to be considered from the macro perspective of the whole country, and it must also focus on the future. There are too many benefits in doing so.

Just the segmented construction method mentioned by Yue Shan just now requires macro planning, a small segment will be built today, and a smaller segment will be built tomorrow.In the past few years, the whole line will be opened up, and it will become a large railway that runs through the country.

At this time, he finally had a clear understanding of the railway construction plan, and also knew that there were big problems in the Chang'e Railway they had planned before.Fortunately, it was discovered early, otherwise it will be more troublesome later.

but……

"What you just said is indeed very useful, but it still hasn't solved the problem of those complex terrains. Digging caves is easy to say, but it is difficult to do. There is also bridge building. This small river has stumped them. What to do when we get to Dajiang Dahe?"

Yue Shan said: "Do you still remember the productivity I told you about?"

Li Shimin glanced at Li Daliang subconsciously.

That look made Li Daliang terrified, and Yue Shan scolded Yue Shan in his heart to be bloody, don't say such confidential things in front of me, he wished he could block his ears so he wouldn't hear anything.

Yue Shan roughly understood what Li Shimin was afraid of, but he was not the kind of person who didn't know how to measure, so naturally he wouldn't go deep into this topic, but changed the subject:

"Productivity is constantly improving. It took five years to excavate the ten-mile-long Shangyanshan Tunnel in the former Han Dynasty. As far as the current situation of Datang is concerned, I estimate that it can be completed in three years."

"If the saint is willing to send a Shenwei army to help them blast stones with gunpowder, it will not even take a year to open it."

"As for the bridge, this is indeed a little troublesome. But it doesn't matter, I happen to know a material called cement, which is most suitable for building bridges, building city fortresses, and can also be used for road construction."

Seeing that Yue Shan just mentioned the vocabulary and did not go further, Li Shimin let go of his guard.

He frowned slightly when he heard that the Shenwei Army was asked to blast stones to help open the tunnel, but he didn't object.He is not the kind of short-sighted person who is afraid of wolves and tigers. Knowing how to do it is the best choice.

The reason why the gunpowder was so tightly covered before was because there was no other use for it other than making firearms.

If it can really be used to open tunnels to facilitate the construction of railways, he doesn't mind sending the Shenwei Army to help.

When Yue Shan said that there is a universal building material, he couldn't help but interrupted: "What is this cement you are talking about?"

Yue Shan recalled the ingredients of cement, and said: "Limestone, clay, and iron ore powder are mixed together according to a certain proportion, ground into powder, and cooked in a high-temperature furnace."

"The temperature of the furnace is higher than that of firing porcelain. After it is cooked, it is mixed with a certain proportion of gypsum powder to form cement."

"This material is very easy to use. Add water and a certain amount of sand and gravel and stir it, and it can be solidified together. Adding an appropriate amount of steel bars will make it stronger, stronger than stone."

Li Shimin's eyelids started to twitch again, and he pointed at Yue Shan for a long time before cursing: "Bastard, why didn't you bring out such a good thing earlier?"

Yue Shan said embarrassingly: "I really can't remember it, I just thought of it when you said you were building a bridge."

Li Shimin also knew about his problem a long time ago, and said helplessly: "In the future, you will spend more time hiding at home writing books, paying more attention to some important national affairs, and telling me as soon as you think of something."

Yue Shan said: "Here."

Li Shimin said to Li Daliang again: "Have you remembered the cement refining method? Go down and have someone fire it right away."

Li Daliang hurriedly replied: "I obey the order, but please let Xia Guogong elaborate on the ratio, formula and the method of using the cement."

Yue Shan said: "I only know the required materials and the production process. I don't know the specific ratio of materials used. You still need to try it yourself."

"As for the method of using cement...well, I will write down the information I know later, including how to dig tunnels and how to design and build bridges."

"Remember, what I know may not be correct. It can only be used as a reference. You must first verify it before doing it. It's still the same sentence, and there is no rush."

Li Daliang nodded, and said seriously: "Thank you Xia Guogong for your guidance, I will act carefully."

At this time Li Shimin said again: "Think about it carefully, see if you can remember anything important again?"

Yue Shan said: "Let's continue talking about the planning of railways from a macro perspective."

Li Shimin said: "There is nothing to say about this. I will discuss it with the Chinese ministers."

Yue Shan shook his head and said: "That's not the case. This matter is not as simple as you imagined. As I said just now, the territory of the Tang Dynasty is too vast, and there are all kinds of terrain."

"When planning a route, you must take the geological conditions of each place into consideration, and determine whether the railway line is suitable for passing there. How many of the saints do you think the ministers in the court know about these things?"

"Professional things should be left to professional people. I think the best way is to set up a special organization to train and recruit professional talents."

"Which railway the sage wants to build, give them the order. Let them plan several suitable routes, and then the sage chooses the one that suits his heart the most. This is the perfect way."

"There are also talents who specialize in bridge construction and tunnel construction... There must be different talents for various geological conditions, so that they can solve various problems encountered in railway construction."

"Railway construction is a comprehensive undertaking involving countless industries. Now Datang simply doesn't have so many relevant talents. The imperial court must plan ahead and start cultivating it from now on."

Li Shimin said: "You are making trouble for me again, how is it so easy to cultivate talents."

Yue Shan said: "It's really not easy. Before you abolished the craftsmen's registration, it greatly stimulated the enthusiasm of the craftsmen."

"In the past, those registered craftsmen were unwilling to let their children and grandchildren inherit their craftsmanship, but now they regard craftsmanship as a treasure, and pass it on from male to female."

"There are several times more craftsmen under the name of the Ministry of Industry than before, and their work is more serious and responsible. Li Shangshu should know this best."

Li Daliang said: "It is true. The sage solved the big problems that plagued the past dynasties with a high vision."

Li Shimin was also somewhat proud of himself, although Yue Shan insisted on the abolition of the craftsman's registration, but it was indeed ended by him, and it was his political achievements.

But he didn't show it, but said: "But craftsmen are not the right way after all. I am afraid that those who are really capable will still choose the path of studying and becoming an official. It may be difficult for the imperial court to cultivate enough relevant talents."

Yue Shan thought for a while and said, "Actually, there is a way to solve this problem, and I'm afraid the saint is not willing."

Li Shimin said: "Tell me what to do first."

Yue Shandao: "Setting up a brand new public office system outside the official system is like a judicial officer who is promoted to the criminal department."

"It's just that this public office system does not care about the military, the civilians, or the law. It is responsible for researching all kinds of craftsmen, but it can enjoy the treatment of officials and eat the royal food of the country."

Li Shimin said with a headache: "Just now you said you were going to find a problem for me, but now you have found a bigger problem. This strategy will definitely attract opposition from all officials."

Yue Shan said indifferently: "The majority of officials objected because they were afraid of harming their own interests, and the interests of the country became unimportant in their eyes."

"Sage, you are the king of a country, so you must start from the interests of the country. If you think it is necessary, you should do it. If you don't do it today, you may not be able to do it in the future even if you spend ten times and a hundred times the price."

Li Shimin rubbed his temples, he understands the truth, but this matter is really tricky.Glancing at Li Daliang who was about to shrink himself behind the pillar, he asked: "What do you think of Xia Guogong's method?"

How could Li Daliang dare to express his opinion, he supported offending all the officials, he did not support offending the emperor, he just shirked and said: "This is a major matter of the country, there should be a sage to make decisions, and the ministers should listen to the sage's will."

Li Shimin said: "Okay, I understand what you mean, do you have anything else to do?"

Li Daliang knew that it was time for him to leave, so he quickly got up and said: "I have finished my business, please leave."

Li Shimin said: "Well, go back and test the cement recipe."

Li Daliang said: "Here." Then he took a few steps back and turned to leave.

When he left, Li Shimin didn't seem to want to talk about these topics anymore, and instead asked, "Have you talked to the queen?"

Yue Shan said: "As I said, the Queen and the Crown Princess have decided to let King Jin come back with me today. Well, Princess Jinyang will also go to my house to stay temporarily."

Mentioning this daughter, Li Shimin's mood suddenly became heavy, and he said: "Maybe, she doesn't even have anyone to talk to in the palace, so she can go to your place to relax. It's also close to the medical school, which is convenient for diagnosis and treatment. You... um , help me take good care of her."

Yue Shan said: "Saint, don't worry, I will."

Li Shimin seemed to be disturbed, he was not in the mood to deal with government affairs, got up and said: "Come on, let's go to the harem, I will accompany Shu'er."

After speaking, the two went to the harem together.

When they arrived, Changsun Wugou was still busy packing up the necessary items for her.

(End of this chapter)