Open an aircraft carrier to fight against Japan

Hou Zhengfeng said with a smile: "Is it still necessary to choose those routes? I keep them all in my head. Do you know what our greatest advantage is?"

Lin Yuan asked: "The biggest advantage? What do you mean?"

Hou Zhengfeng said with a smile: "Do you know which stage of the railway construction takes the longest? You will never guess that the time for selecting the route is actually the longest. Let me give you an example. For example, from Beijing to Zhangjiakou, two There are countless ways of walking between places, so which villages and towns should we pass? Not only should we consider factors such as geology and hydrology, but also how many industrial and mining enterprises are around, whether they can drive the development of the region, and to what extent the region can be driven. question."

"Let me give you an example. After the founding of the People's Republic of China, we built the Chengdu-Kunming Railway from Chengdu to Kunming. It took four years just to go out for surveys. Finally, three feasible routes were determined. The process of analysis and decision-making It took nearly a year to start construction, and we don't need it. The predecessors have already selected the route for us. The geological situation has not changed significantly in the past 100 years. There are basically no industrial and mining enterprises. There is no need to think about it, so we can use it directly."

Lin Yuan asked: "What about the seamless railway you mentioned on the track inspection vehicle? Can we build it?"

Hou Zhengfeng nodded and said: "Of course we can. We want to build our Beijing-Cloud Railway and Beijing-Shanghai Railway into the most advanced railways in the world, especially the Beijing-Cloud Railway. A miracle in the history of railway construction!"

Hou Zhengfeng went on to say: "Since it is the most advanced railway, the seamless railway must be the first choice. In our era, railways have two development directions. One is high-speed. Our country's high-speed railways are already widely known, such as EMUs. , with a maximum speed of [-] kilometers per hour! And in this era, the speed of our country’s railways is only about [-] kilometers per hour.”

"The speed of [-] kilometers per hour is already close to the limit of the speed of conventional railways. Conventional railways rely on the adhesion between the wheels and the rails to generate traction. Relevant theories and practices have proved that such railways have limit speeds. If you want to break through this limit speed, conventional improvements are no longer effective, and you can only use magnetic levitation."

"Although the high-speed railway has various advantages, it is not suitable for us now. What we need now is another direction, that is, the heavy-duty railway. The heavy-duty railway simply means that it can carry a lot of goods at a time. What we have now is that the number of locomotives and professionals is small, so the number of trains we can send out is relatively small."

"And we want to transport as much minerals from the west as possible, so we can only increase the quantity of goods carried at a time, so the heavy-haul railway is our only choice."

Lin Yuan nodded and asked, "Okay, then we will build a heavy-haul railway according to what you said. I don't know what preparations we need to make to build the most advanced railway?"

Hou Zhengfeng thought for a while and said, "There will definitely be a lot of preparations needed, but I can think of three general directions now."

Lin Yuan asked: "Which three general directions?"

Hou Zhengfeng replied: "First: steel; second: laser; third: communication."

Lin Yuan frowned and asked: "I understand steel. The track must be made of steel, but what do lasers and communications mean? Why do railways need these things?"

Hou Zhengfeng replied: "Our rails must be laid straight, not slanted. If they are laid on the ground, there is no reference. How can you ensure that the rails from the starting point to the starting point are a straight line? If it is not a straight line, it will definitely cost money. Materials, not only that, our Beijing-Yunnan Railway must open tunnels, especially when opening tunnels, we must ensure that the path opened is a straight line, if not, the tunnel may even be in danger of collapsing."

"As for communication, it is even more important to ensure that when our railway is in operation, it is impossible for only one train to run on such a long route, so we need a communication system to coordinate the positions of different trains. If this coordination is not good, it will definitely There was an accident!"

Lin Yuan thought for a while and said, "Lasers and communication equipment have something in common, and they can be produced together."

Hou Zhengfeng asked: "They also have something in common?"

Lin Yuan said: "A lot of semiconductor devices are used in communication equipment, and lasers also use semiconductors, so I say they have something in common."

Hou Zhengfeng suddenly realized, and then said: "In fact, the most important thing we need to solve is the steel problem. Our current steel production may not be able to meet our requirements."

Lin Yuan asked: "Are there any special requirements for the steel used for the track?"

Hou Zhengfeng said: "Generally speaking, the heavier the rail, the better. Like the rails used in our country, there are three types of steel rails: 50 kg/m, 60 kg/m, and 75 kg/m. It is much smaller than other steels, and using such steel is also good for heavy loads, our railway line will be very busy in the future, so I suggest laying 75 kilograms per meter of steel rail now."

"As for the composition, we need to use manganese ore. Our iron ore in Liaoning is rich in manganese, so manganese steel can be produced directly, but you can calculate our demand for steel. From Beijing to Kunming, the mileage It is about 75 kilometers, and if we use [-] kilograms per meter of steel for the whole journey, then we need a full [-] million tons of steel rails! The entire steel production in this era cannot reach this figure!"

Lin Yuan said: "Then I'll think of a way." The two left the roast duck restaurant while talking, and Lin Yuan returned to his residence, thinking hard about the countermeasures, thinking: "[-] million tons is an astronomical figure. This railway will use so much steel." Lin Yuan immediately informed the Beijing ship to send people to Shanghai, Fuzhou and other coastal ports to buy all the tin mines currently on the market and use them for the time being.

At this moment, someone came to report from outside the door: Thomas asked to see me!

Lin Yuan thought to himself: "It's already getting dark, what is Thomas looking for me for?" Lin Yuan let him in, and when Thomas came in, Lin Yuan saw his disappointed expression, and couldn't help asking: "What's wrong with you?"

Thomas said: "Our contract may not be implemented, and our expert team may return to the United States in a few days."

Lin Yuan was surprised when he heard it, and thought: "If they leave, we won't have skilled workers to build the railway! No, we can't let them go anyway." So Lin Yuan asked, "Why did you leave? Is something wrong?"

"It's the steel!" Thomas said.

Lin Yuan's heart skipped a beat when he heard the word "steel", and quickly asked, "What's wrong with steel?"

Thomas said: "The construction of railways requires a lot of steel. The Pacific Railway Company has reached a strategic alliance with Carnegie Steel Company. All the steel needed by the Pacific Railway Company is supplied by Carnegie Steel Company. Now you are required to use the steel produced by yourself. Carnegie quit, and he used his tactics to force the Pacific Railway to stop building the railroad."