Xiao Niangpi said: "Recently, the Secretariat is approving the next stage 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 highways 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, ruler-gauge railway can be used.
"Xiao Niangpi said with blinking eyes.
Yang Fan suddenly understood that this was a good idea.
The cost of the ruler-gauge railway is very low. On a four-lane cement road, it is just a matter of cutting a groove. The new groove is omitted and can be directly reserved during pouring. And this kind of track and cement is similar to the urban rail bus
The road surface is flush and the gaps are not big, so it does not affect the movement of vehicles and horses on an ordinary highway.
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 connect a small double-track railway. Use it 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 not taking the train, it will be a four-lane highway. When taking the train, it will be a two-lane highway.
Go back and ask modern experts to ask how much weight the ruler-gauge railway can carry if you use rails of the same size as standard rails. Nowadays, all narrow-gauge special rails 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.
There is an indicator, which is how many kilograms a meter-long rail weighs. Yang Fan remembers that the meter rail of heavy-duty railways is very heavy. The weight of ordinary standard rail meter rails is lighter. The steel materials used are also different.
He immediately checked and found that it was indeed the case.
Scope of application: high-speed railway, heavy-haul railway, etc.
80 kilograms per meter is the kind used by the Daqin Railway, which is used for 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 are afraid that the technology is not up to par. The weight and steel grade of the narrow-gauge railway are too low. It is difficult to find it from Hyundai. At present, I have bought everything that is available in China. What should I 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, they may be 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 way, the development of railways will not be restricted in the next ten or twenty years.
.
Yang Fan made up his mind and built a 762-track railway. This low-standard railway was cheap, easy to construct, and fast to build. The locomotives had low technical difficulty and were easiest to mass-produce locally.
If a narrow-gauge railway uses standard rails, the load capacity can definitely be increased in design. The only disadvantage is that the width of the carriages of narrow-gauge trains is narrower than that of standard rail trains. The carriage width of standard rail trains is less than
3.4 meters. The carriage width of the 762 narrow gauge train is less than 2.3 meters, which is similar to that of modern large buses.
In addition, the 762 narrow-gauge train is relatively limited in transporting light-weight and large-volume goods. For example, cotton, wool, etc. However, it can transport more heavy-weight goods than before. For example, ore, steel, cement, and grain.
wait.
Yang Fan decided to adopt Xiao Niangpi's suggestion. On the cement roads between the various tulou towns in the territory that were approved this year, set aside a groove for the ruler-gauge railway. Install the steel rails for trial operation. Let's try it out in the territory first.
If successful, rails will be laid directly on new cement roads built in various places in the future. In the future, the rails of all railways built will be replaced with standard rails. This will make ordering easier.
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, so they are equivalent to scrap iron. You can save a lot of money.
When Yang Fan was happy, he pulled the 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 the concrete grade.
P43 rail, a single length is 25 meters, the bottom width is 136mm, and the height is 160mm. The weight of a single rail is about 1075 kilograms.
This weight is already difficult to carry manually. Coupled with the thick fixing bolts and cement sleepers, it is not easy to remove without special tools. It can prevent theft.
The grade of the highway in Yangfan is not high, so a cement thickness of 25-30 centimeters is sufficient. After grooving, 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 one hundred people.
The current products of the Ming Dynasty were not too rich, the flow of people was not too large, and the transportation pressure was much smaller. Such a scale-gauge railway was enough to meet the passenger and freight transportation needs at the prefecture and county levels.
Building the 762 narrow gauge is a local waste. There is not that much demand. Technology is not about the more advanced, the better, the bigger the transport capacity, the better. It is economical, affordable and easy to use.
If the small train uses the power package produced by the factory in Da Maotula, it can run as long as there is wood and water. It is low cost and high efficiency. It is really a good choice. Although it is filled with wood, it can only run 80 kilometers. But within the Great Wall, the population
It is dense and there must be a station 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. Whether it is design capabilities, technology accumulation, or even materials and processes, great progress has been made. It is not impossible to continue to improve transportation 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 you could lay a ruler-gauge railway along with a cement road.
After the steam power package is put into production, all kinds of automobiles will definitely develop greatly in the future. From passenger cars, buses, trucks to special purpose vehicles, they will spring up like mushrooms after a rain. What kind of engine is available, what kind of vehicle will be built. The engine is the key.
From now on, the provincial and city levels will be connected by 762 narrow-gauge railways as trunk railways. At the prefecture and county level, they will be connected by cement roads and long-gauge railways as branch railways.
Mines, forest farms, salt farms, granaries and other places involving heavy weight and large-volume transportation all use ruler-gauge railways. Rule-gauge railways can also be used in mountainous areas. After all, mountain roads are narrow, and the width of road construction, tunnel width, and bridge width are very important.
All requirements are small.
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 the Ming Dynasty. If we follow this standard, within twenty years, most areas of the Ming Dynasty will have access to railways.
