Chapter 41 Beijing-Dalian Railway
Yao Guangxiao passed away quietly, and many people did not even know that such a figure was no longer in Beijing.
He Xi's thoughts are already on the Beijing-Dalian Railway.
During this period, Ge Tiangong and Zhang Youzhi also ran back and forth many times on the road from northwest to Dongsheng, and the inner thighs were worn out countless times. At this time, they also came to find He Xi.
He Xi called Yang Shiqi, Xie Jin, Qu Tong and others over.
Ge Tiangong was quite relaxed in front of He Xi. It's just that his face doesn't look good. He said: "Sir, I know this matter is of great significance, but this matter is really difficult to handle." He was not in vain.
He took out a paper tube directly from behind his back, opened one end, and took out a long scroll. It was nothing else but a map. The map was so big that it took two people to pull it open. But the area represented by the map is not large. Only the railway from Peking to Badaling to Xuanfu is planned.
In terms of route location, it is the same as Zhan Tianyou’s Beijing-Zhangjiakou Railway in some places, but it is different in many places.
After all, the support Zhan Tianyou received was different from the support Ge Tiangong received. When Zhan Tianyou was building the railway, he considered too many things outside the railway, and the various funding constraints were very strict.
But it's different here with Ge Tiangong.
Money is not a problem for Ge Tiangong. The most important problem is He Xi. Ge Tiangong only needs to report an accurate number.
There is no limit to the manpower issue.
If necessary, He Xi can let the active military put down their guns and build the railway.
However, the problems they encountered were the same. Even the problems Ge Tiangong encountered were bigger than those encountered by Zhan Tianyou. Because in Zhan Tianyou's era, the Chinese were followers, and Zhan Tianyou learned the complete railway system in the West. Even if some things cannot be applied to the Beijing-Zhangjiakou Railway, they are at least a reference.
But Ge Tiangong's side is different.
The entire railway technology system was formulated by Ge Tiangong.
Zhan Tianyou's work on the Beijing-Zhangjiakou Railway was somewhat groundbreaking. But Ge Tiangong is starting from scratch here.
In the past, the Beijing-Ying Railway was almost entirely on flat ground. Even though there were some bridges, they were nothing compared to the heavy rock peaks of Badaling. There are too many problems here.
Ge Tiangong said: "I took a trip to Dongsheng. There are several difficulties on the railway from Beijing to Dongsheng. The first difficulty is here, crossing the Yanshan Mountain. The second difficulty is the Yinshan Mountain, and the third difficulty is the Yellow River. .”
"But generally speaking, we can only cross the Yanshan Mountain. The Yinshan Mountain is not a big problem, because the Yinshan Mountain is much easier to deal with than the Yanshan Mountain. As for the Yellow River, we will talk about it in the future. This is the best route I chose."
Ge Tiangong pointed at the map and followed the sites on the map. They went all the way over Yanshan to Xuanhua, with about eight or nine stops in total, but He Xi frowned.
This is a contour engineering map. Of course, He Xi doesn't know how different it is from the standard engineering map that follows. But now it is in the same vein as the military map, and it was taught by He Xi, and He Xi knows it very well.
On this route, there are seven large and small bridges and eight tunnels. Many places have very high gradients. He Xi doesn't know the climbing ability of today's steam locomotives. But He Xi was worried.
Ge Tiangong said: "The first problem is the tunnel."
"The Beijing-Ying Railway did not dig tunnels. Nowadays, tunnels must be dug, otherwise the distance will be increased by hundreds of miles. I thought it would be the fastest to dig tunnels. Many mountains in Yanshan are earth mountains, which are easier to dig. . It’s just that I’m really not too clear about the secrets here.”
"It requires specialized personnel to do it. One of the tunnels is more than a mile long, so we need special attention."
He Xi said: "Specialized talents? Where can I find them?"
Ge Tiangong said: "The people who built the mountains and tombs for the imperial court probably have some means. There are also the people in the mines."
He Xi understood immediately.
They are the craftsmen who built the emperor's tomb.
Although these jobs
Craftsmen all dig holes underground, but there is no difference between digging holes underground and digging holes in the mountains. As for miners, this is their main business. Although most of the minerals mined on a large scale today are open-pit.
After all, with today’s productivity, the cost of mining underground is too high. There are some losses that outweigh the gains.
However, this does not mean that no one does such a thing. After all, if it is a precious mineral like gold and silver, it is completely suitable.
He Xi also asked some miners if they had good skills in drilling holes.
As long as it was useful for the imperial court to build a railway, He Xi was willing to send people to find it.
He Xi said: "I will send someone to deal with these people's matters, let's continue."
"Yes." Ge Tiangong said: "Secondly, there are bridges. Some bridges were built before from the capital to Yingkou. But they can't be compared with the bridges here. Those were all bridges built on flat land. But this is where It was built in the mountains, and one of the most important bridges was built. It's right here."
He Xi looked at the stacked contour lines on the map and said, "Is there a drop of a hundred feet here?"
Ge Tiangong said: "Exactly." Then Ge Tiangong took out another drawing. This map was a sketch of a bridge. He Xi knew something was wrong as soon as he saw it.
This valley is too deep. It is not easy to build a bridge.
Although the span is not high, with such a deep valley, He Xi does not have much confidence in the technology of building bridges in this era. He Xi said, "Can't I change here?"
Ge Tiangong said: "I have also thought that this is the best choice. Otherwise, if it is built in other places, it will not only be a bridge, but also more than just a tunnel will be added."
He Xi said, "Do you have a solution?"
Ge Tiangong said: "I can only tell you one idea, I don't know if it will work?"
He Xi said: "Tell me."
Ge Tiangong said: "I want to build a steel bridge."
He Xi looked at Ge Tiangong and secretly lamented that there are talented people in every era. Ge Tiangong had no name at all in the original history. Now it seems that engineers building railways in later generations will all learn from Ge Tiangong's works.
He Xi could understand Ge Tiangong's thoughts, but it was difficult for others to understand.
Seeing this, He Xi said, "Tell me in detail."
Ge Tiangong said: "I have calculated that if we use a traditional earth-rock structure bridge, we must build bridge piers, otherwise it will be impossible to cross over. After all, we can only use steel to support the railway. Because steel The lightest."
Ge Tiangong was not very clear. It is the lightest steel material while ensuring structural strength. Because steel is the lightest material, you can skip the middle pier and jump directly over it.
This sounds a little counter-intuitive.
Ge Tiangong talked for a long time before these people understood this truth.
He Xi said, "Is there any problem?"
When He Xi was talking about steel bridge construction, He Xi was also thinking about steel processing technology in his mind. After much thought, it seemed that Zunhua Iron and Steel Plant was now capable of casting large-scale components. Of course, there is no way to compare this large scale with the larger scales of later generations.
But it also shows that building a steel bridge is technically feasible.
Of course, it’s technically feasible and theoretically feasible, but don’t do too many things that don’t work well in the end.
After all, He Xi is not a front-line worker, but Ge Tiangong himself has to say.
Ge Tiangong worked in two iron factories. Many people in these two places are the disciples of Ge Tiangong. He knows the iron smelting technology very well and knows the feasibility of this matter. Ge Tiangong even has contacts all over the industrial system. Because of this, he dared to propose Such an initiative.
Ge Tiangong said: "Sir, there are no problems with the various technologies. But there is one problem, and that is how to build this bridge. We don't have a specific regulation. Please give us your guidance."
This is natural for Ge Tiangong to say. He is He Xi's disciple, but now he is in the temple and is just called "Sir". if
Naturally, I call him teacher in private. The disciple asked the teacher for guidance. It is also a matter of course.
But this is embarrassing.
What was in He Xi's stomach had long been emptied.
