In the afternoon, Yuwen Wen talked about railway projects with his sons in his study, and the prince Yuwen Weicheng was also there. He showed his father and younger brother a model of the railway bridge. The exquisite structure made people admire him.

This is a railway bridge located on the Jingxing Line of Taihang Mountain. It spans a mountain stream and is a new iron frame structure bridge. From the side, it looks like a word "destroy".

The character "人" under the character "博" is two prismatic iron frames that are stuck together. The "foot" are each inserted on two mountain walls, the "head" is put together, and the character "人" on the top is the bridge deck of the railway bridge.

There are two other points in the inverted eight characters that are auxiliary brackets, one end is placed on the prism iron frame "half-waist" and the other end supports the bridge deck.

A bridge spans a mountain stream, allowing the railway to go straight and without detours, saving a lot of mileage, reducing the project volume and shortening the construction period.

Because the word "南" is not nice, the bridge with this structure is called the "ren" bridge. Yuwen Weicheng introduced that the bridge with this structure was first used in the plank road and appeared on the plank road in the Zhenyang Gorge in Lingnan.

Later, after years of development, the construction technology of this structure of bridge gradually matured, so it was used in more and more places.

It is precisely because of the solid technical foundation that the Jingxing Railway built this time has been used with confidence and boldness.

The railway that shuttles through the Taihang Mountains is leaning against herringbone bridges and straightens, crossing mountain streams and valleys.

Yuwen Weicheng also introduced that the newly started construction of the railway into Shu will also use the "man" bridge to cross mountain streams and other obstacles.

When Yuwen Weili heard this, he asked with interest: "Brother, then when will the railway from Yizhou to Nanzhong be built? What about the railway from Nanzhong to Jiaozhou?"

"Oh, it will take at least ten years to consider it." Yuwen Weicheng said with some regret. Seeing his younger brothers stunned, he looked at his father, and when he saw his father nodding, he explained to his younger brother:

"The imperial court has limited financial resources, so it can only rely on the railway companies supervised by the government and commercial office to raise funds for the construction of railways. However, if there is only money to build railways, some people can't do it, and the iron production must be enough."

"Although there is iron smelting in Shu, the output is still too small compared to the amount required to build a railway. Now the most urgent task is to repair the railway connecting Chengdu and Luoyi. Although it has started to be repaired now, it is optimistic that it will take three years to complete the construction."

"After opening the traffic, the railway from Chengdu to Nanzhong cannot be built into Nanzhong. The railway connecting Liangzhou Hanzhong on the Chengdu-Luoyi Railway halfway."

"After the railway is built to Hanzhong, we must go east along the Han River, pass through Ankang, Jinzhou, and to Xiangyang, downstream. Of course, Xiangyang will build a railway to Hanzhong according to the route plan this year, so this railway is called Xiangliang Railway."

Speaking of this, Yuwen Weicheng saw Yuwen Weimin raise his hand and asked the other party to ask a question.

Yuwen Weimin’s question was why the railway from Xiangyang to Hanzhong was first built, rather than the railway from Xiangyang to Fancheng, and Rangcheng to go to Guanzhong by Wuguan Road.

After reading the information he had just sent by his elder brother, he learned that the railway from Hanzhong to Xiangyang was expected to have a mileage of more than 1,200 miles, and the official road from Xiangyang (Fancheng) to Chang'an was also more than 1,000 miles. The length of the railway built on this basis should be about the same.

"The reason is very simple. I'm just about to use it. Since the railway is eager to choose important lines to repair it, then we have to consider it from the overall perspective."

Yuwen Weicheng said, let the younger brothers look at the map carefully and see the location of Hanzhong, and let the younger brothers think about what Hanzhong is for Shu and Guanzhong.

Yuwen Weili and Yuwen Weimin listened to their father's lecture and understood the importance of Hanzhong: Guanzhong is the gateway to Shu.

Once someone establishes himself in Shu, his primary goal is to control Hanzhong, close the "main gate" entering Shu, and then block the "side gate" of the Yangtze River Gorge, and then block the "side gate" of the Yangtze River Gorge. This person can close the door and settle in a corner.

Then, for the imperial court, it was very necessary to strictly control the Hanzhong area in order to restrain and monitor Shu, so railways must be connected in Hanzhong.

If there is any change in Shu, the court could send troops from Guanzhong to Liangzhou, where Hanzhong is located, into Shu.

Or, let the Jingxiang soldiers go upstream along the Han River to Hanzhong and then enter Shu.

However, in the Han River, it is difficult to take large ships in the upper reaches. If the Jingxiang soldiers enter Shu, they have to take land. If there is a railway, it will save a lot of trouble.

With the railway open, the development of Hanzhong area will accelerate much faster. Grain from Jinghu area can also be transported to Hanzhong through this railway and then transported into Shu.

Then, when a famine occurs in Shu, not only Guanzhong, but also Longyou area can allocate grain rescue, but Jinghu area, which has become a large granary, can also transfer grain to Sichuan to provide disaster relief.

Without this Xiangliang Railway, the grain in Jinghu area could only take the Yangtze River waterway and sail against the current through the Yangtze River Canyon into Shu.

This is not impossible, but with the railway, the cost of transporting grain from the Han Mian area to Shu is higher than loading ships from Jiangling to the waterway to Shu, but it is still worth it. After all, there is one more road and one more reserve, and this transportation line is not afraid of heavy floods in the Yangtze River during the rainy season.

Yuwen Weicheng introduced that when the Xiangliang Railway is completed, the court will consider choosing a place from Hanzhong or Ankang as the "end point" and building a railway starting from Guanzhong and across the Qinling Mountains so as to give the railway entering Shu an additional backup line.

Such a railway can bear the important task of transporting personnel and materials between Guanzhong and Jingxiang areas.

In contrast, the Wuguan Railway connecting Guanzhong and Jingxiang is less important.

The existing Wuguan Road has been widened many times and has met the needs of land transportation. The smooth shipping of the Yellow River makes it easy to enter Guanzhong for Guanzhong, without relying on the Wuguan Road Railway to rescue emergency services.

When Yuwen Weili and Yuwen Weimin heard this, they already understood what "good steel is used on the blade".

If the imperial court wants to ensure that Chang'an has sufficient food and supplies, it must build the Guanzhong Railway to ensure that the materials transported from Guandong arrive at Weikou (east end) and conveniently transported to Chang'an; to ensure that the materials transported from Shu and Longyou areas arrive at Luoyi (week end) and conveniently transported to Chang'an.

In the future, we will also use railways to connect Chang'an and Luoyang to make the transportation between the two capitals more convenient.

If the court wants to resolve the Eastern Turks, it must build the railway from Bingzhou to Fengzhou and the Jingxing railway across the Taihang Mountains to ensure that the Yellow River is frozen in winter and that when shipping is interrupted, the imperial soldiers can still quickly arrive at the Yinshan defense line from Guanzhong and Hebei.

If the imperial court wants to resolve Tuyuhun and control the Xihai area, it must build the Guanlong Railway so that the troops from Guanzhong and Shu can quickly arrive in Lanzhou, and then go to the Hehuang Valley to gather and launch an offensive against the Xihai.

If the imperial court wants to solve the problem of solving the Western Turks and to operate Jixi, it must build the Hexi Railway based on the Guanlong Railway to extend the railway to Mingsha (Dunhuang), greatly reducing the logistical pressure.

The imperial court wanted to make the transportation between the Yellow River and the Yangtze River more convenient, so after the Tongji Canal was dug, the Guanghuang Railway was now extended, and it extended through Xiaohuang, Bozhou to Baimajin on the south bank of the Yellow River, connecting the middle reaches of the Yangtze River and the lower reaches of the Yellow River.

The court had to use troops to Goguryeo and prepare for the long-term operation after the recovery of the former land of the Han Dynasty. Therefore, the Xulai Railway was built to facilitate the transportation of personnel and materials.

These are the most important railways, so they are given priority to construction. As for the Xiangliang Railway...

"Look." Yuwen Weicheng pointed to the railway planning route map and explained to his younger brothers: "When the Xiangliang Railway is repaired, materials from Hexi, Longyou and Xihai areas need to be imported into Jingxiang, and there is no need to pass through Chang'an."

"After the train pulls goods from these areas out of the Weishui Canyon, go south through Luoyi, passes Hanzhong, and enters Xiangyang, and there is no need to take the Guanzhong Railway to alleviate the dispatch pressure of the Guanzhong Railway, and the same is true for the other way around."

"In the future, Chang'an will be the hub of Tianxia Railway. Guanzhong Railway will be very busy. It is necessary to have such a railway divert freight and passenger transport pressure."

Yuwen Weicheng became more and more excited when he said this: "The railway is good, but it is very expensive to build a railway, so we must restrain ourselves and not abuse the people's strength. We will make a stage and gradually build it according to the main and secondary."

"Otherwise, if you force the people to rebel against the railway to build a railway, it will be more than worth the loss."

The construction mileage of the railway is getting longer and longer, and Yuwen Weicheng is also happy, because this can be said to be his hard work. As the planned railways gradually become reality, Yuwen Weicheng's sense of accomplishment is getting higher and higher.

As the prince, Yuwen Weicheng's situation is a bit awkward. He can't perform too well, he can't perform too badly, he can't contact too much government affairs, and he can't contact less.

Now, he is responsible for the development and improvement of trains, the planning and participation in the construction of railway lines. He can not only have the opportunity to perform, but also exercise his abilities and select talents. This is really suitable.

Yuwen Wen was also very happy to see the prince devoted himself to the railway construction work. He was even happier to see that while the prince was keen on building the railway, he did not forget to care about the people's strength and avoid rushing to achieve success.

In history, Emperor Yang of Sui was keen on digging canals and engaging in infrastructure construction. His purpose was good, but he was too hasty and did not care about the people's strength, which made the heavens angry and people resentful.

Now, we cannot repeat the same mistakes in order to build a railway. If we force the people to die in order to speed up the progress, it would be a death.
Chapter completed!