Xiao Niangpi said: "Recently, the Secretariat is approving the next phase of the cement road project in the territory."
Yang Fan looked at Xiao Niangpi and didn't understand what she said about the relationship between roads and ruler-gauge railways.
"Sir, I think we can follow the idea of rail buses embedded in the middle of the cement road in Beijing. On the cement road we built, a lane width is reserved in the middle, so that a double-track, standard-gauge railway can be used. "Xiao Niangpi blinked her eyes and said.
Yang Fan suddenly understood that this was a good idea.
The cost of building a ruler-gauge railway is very low. On a four-lane cement road, it is just a matter of digging a groove. The new grooves are omitted and can be reserved directly during pouring. Moreover, the track of this kind of urban rail bus is flush with the cement road surface, and the gap is not large, so it does not affect the movement of vehicles and horses on ordinary highways.
In this way, these cement roads become road and railway pavements.
If you are willing to spend money, add a lane width in the middle and use a double-track railway. It is used as a tidal lane when traffic is tight.
If you want to save money, just lay a ruler-gauge railway on each of the two inner lanes. When you're not taking the train, it's a four-lane highway. Taking the train is a two-lane road.
Go back and ask a modern expert to ask how much weight a ruler-gauge railway can carry if it uses rails the size of a standard track. Nowadays, all narrow-gauge special tracks are used, which are small and light. If the rails are replaced with standard rails, the load capacity will definitely be greatly improved.
Yang Fan remembered that the load capacity of a railway is directly related to the model, size, strength and weight of the rails.
One indicator is how many kilograms a meter long rail weighs. Yang Fan remembers that the meter gauge of the heavy-haul railway is very heavy. Ordinary standard track meter track weight is lighter. The steel used is also different. Read the book
He checked it immediately and found that it was indeed the case.
43 kg/track (steel number: C43), weight: 44.653 kg/
Scope of application: main railway lines, branch lines, mining railways, etc.
50 kg/track (steel number: C50), weight: 51.514 kg/
Scope of application: high-speed railways, heavy-haul railways, large stations, bridges, tunnels, etc.
60 kg/track (steel number: C60), weight: 60.646 kg/
Scope of application: Extra large stations, extra large bridges, tunnels, etc.
80 kg/track (steel number: C80), weight: 79.507 kg/
Scope of application: high-speed railway, heavy-haul railway, etc.
The 80 kilograms per meter is the kind used by the Daqin Railway, the track used by super-heavy-haul trains. The annual transportation capacity of the Daqin Railway reaches 200 million tons.
Yang Fan thought of a question, that is, how to solve the problem of railway development in the future.
If you make it yourself, you're afraid that the technology won't be up to par. The weight and steel grade of narrow gauge railways are too low. Hard to find when buying from Hyundai. At present, I have bought everything I can buy in the country. What to do next.
If you buy new ones, the steel mill will have to re-adjust the production equipment for you. If there are fewer orders, they may not be willing to serve you. If you place too many orders, you are afraid of attracting the attention of relevant departments. ,
The best way is to purchase standard rail rails. There are too many rails that are eliminated every year in China, and the price is also cheap.
In this case, although the track gauge is narrow gauge, the rails, wheels, bogies, etc. are designed and adapted according to the rail parameters of the standard track. In this case, railway development will not be restricted in the next ten or twenty years.
Yang Fan made up his mind to build a 762-track railway. This low-standard railway is cheap, easy to build, and fast to build. The technical difficulty of train locomotives is low. Easiest to mass produce locally.
If narrow-gauge railways use standard rails, the design can definitely increase the load capacity. The only disadvantage is that narrow gauge trains are narrower in width than standard rail trains. The width of a standard rail train carriage is less than 3.4 meters. The carriage width of the 762 narrow gauge train is less than 2.3 meters. Similar to modern large buses.
In addition, the 762 narrow-gauge train is used to transport light weight and large volumes.
When it comes to goods, it is relatively restricted. Such as cotton, wool, etc. But transporting heavier goods means you can transport more than ever before. For example, ore, steel, cement, grain, etc.
Yang Fan decided to adopt Xiao Niangpi's suggestion and set aside slots for the full-gauge railway on the cement roads between the various tulou towns in the territory that were approved this year. Install the rails for trial operation. Let’s try it out in the territory first.
If successful, steel rails can be laid directly on newly built cement roads in various places in the future. In the future, the rails of all railways built will be replaced by standard rails. This makes ordering easy.
It doesn’t need to be too heavy. After all, the roadbed is still ballast laid according to the narrow-gauge railway. Although the transportation weight has increased due to the upgraded rails, it is still limited by the roadbed.
Therefore, just use the lightest modern 43 kilograms per meter rail.
Old rails are sold based on weight, which is equivalent to scrap iron. You can also save a lot of money.
When Yang Fan was happy, he pulled the little girl's skin and kissed her on the cheek.
"Madam, you are so smart. This is a great idea. In the future, all cement roads we build will have slots reserved for the standard-gauge railway."
The little girl rolled her eyes at him shyly, but her little face flushed with excitement.
Yang Fan immediately went to check how many tons of vehicles could pass on a cement road with a thickness of 10 centimeters.
The result is no more than ten tons. This is also related to concrete marking.
P43 rail, single length 25 meters, bottom width 136. Height 160. The weight of a single piece is about 1075 kilograms.
This weight is already difficult to carry manually. Coupled with the thick fixing bolts and cement sleepers, they are not easy to remove without special tools. It can prevent theft.
The road grade in Yangfan is not high, and the cement thickness should be 25-30 centimeters. After grooving in this way, the thickness under the rails can support the ruler-gauge railway, and there is no problem with each carriage carrying a load of more than 10 tons.
After adopting standard track rails, a small train on the standard-gauge railway can easily transport one to two hundred tons of cargo. Passenger transport can also reach the level of more than 100 people.
The current products of the Ming Dynasty are not too rich, the flow of people is not too large, and the transportation pressure is much smaller. This kind of full-gauge railway is enough to meet the passenger and freight transportation needs at the prefecture and county levels.
Building the 762 narrow gauge is a waste locally. There's not that much demand. Technology is not the more advanced the better, the bigger the transport capacity the better. It is economical, easy to use and the best.
If the small train uses the power package produced by the factory in Da Mao Tula, it can run as long as there is wood and water, which is low cost and high efficiency. What a great choice. Although it is filled with wood, it can only run 80 kilometers. But within the Great Wall, there is a dense population, and there must be stations within 80 kilometers.
And after production resumes, as long as there are orders, it is not ruled out that there is still a lot of room for upgrades in the steam power package.
After all, almost a hundred years have passed since the design, no matter in terms of design capabilities, technology accumulation, or even materials and processes. We have made great progress, and it is not impossible to continue to improve our transport capacity in the future.
Standard tracks are indeed good, but they are also expensive. You can’t build them yourself, and they are troublesome to build. It would be a good choice if we could lay the ruler-gauge railway together with cement roads.
After the steam power package is put into production, various automobiles will definitely develop greatly in the future. From passenger cars, buses, trucks to special-purpose vehicles, they will spring up like mushrooms after rain. What kind of engine is there, what kind of vehicle is built. The engine is key.
From now on, the provincial capital level will be connected with the 762 narrow gauge railway as a trunk railway. At the prefecture and county level, cement roads and ruler-gauge railways are used as feeder railways.
Mines, forest farms, salt farms, granaries and other places involving heavy weight and large volume transportation all use ruler gauge railways. Ruler-gauge railways can also be used in mountainous areas. After all, mountain roads are narrow and require small widths for road construction, tunnels, and bridges.
Towns and towns below the county level will be left alone, and roads will not be repaired. We do not have the energy and financial resources for the time being.
Thinking of this, Yang Fan was satisfied. This is the future railway standard of Ming Dynasty. According to this standard, it will take twenty years. Most areas in the Ming Dynasty have access to railways.
