Da Qin: At the age of six, I beat Qin Shihuang at the beginning

Chapter 258 Ballast Problem

Wei Yu got the asbestos production method and arranged it on the spot.

He is different from Li Si and others.If Li Si knew that Qin Mu had come up with something new, he would definitely still be skeptical, and he would regret not choosing the right option again until he was slapped in the face by Qin Mu with iron-like facts.

And Wei Yu is a very pure craftsman.The trust in Qin Mu is simply a mindless choice from the bottom of his heart... As long as Qin Mu said it, he would not have the option to question it at all.Before, even something as outrageous as a big killer rail, I chose to trust...

To get this thing done, there is another problem, that is the laying of the rails.The laying of railway tracks requires a large amount of stones as roadbeds. Such a structure has a special name called ballast.

Such ballasts are used to distribute the pressure on the rails.A truck, just because of its own weight, is heavy enough. If it was on an ordinary dirt road, it would probably sink right away.Not to mention load time!

Under normal circumstances, the load of a train is about [-] tons, and most of the load of the entire train is between [-] tons and [-] tons. With such a weight, even if it stops in place, the pressure is enough Press the train's rails and wheels into the ground.Not to mention the cargo-carrying giants of later generations, which can carry up to [-] tons of cargo!
The locomotive made by Qin Mu is definitely not as exaggerated as [-] tons, but it can still reach the limit of ordinary trains, and there should be no problem with the load of [-] tons.

First of all, the quality of the rails, without strong industrial capabilities, can only be the next best thing.If there is no suitable pressure relief, it is estimated that the rails will be damaged and broken after a few trips!
With the stones of the ballast as the distributed stress point, the pressure received by the entire rail can be evenly distributed to each stone of the ballast, which greatly reduces the burden on the rail.If we strengthen the wood selection of train sleepers and optimize the shape later, this kind of slightly worse rails can also be fully afforded.

Of course, ballast is not the only effect.In addition to dispersing pressure, it can also play a role in shock absorption and balance.During the movement of the train, the inertia is huge, coupled with the response of the deflection force of the floor tiles, there is actually a high probability of overturning.

If there is ballast, the stones interact with each other to form a natural balancer, and finally achieve the result of smooth running of the train.Moreover, the ballast is stone, which has good thermal conductivity and can disperse the heat generated during the fast running of the train.

Of course, these gravel ballasts are not without their faults.Their biggest problem is actually caused by gravel.

These stones are not fixed to each other, so it is normal for a slight displacement to occur under the rolling of the train. After a long time, it will even cause the displacement of the rails... Once the rails are displaced... the train It's easy to get off the rails...

However, compared to the benefits of ballast, this shortcoming can simply be ignored.The displacement caused by this kind of displacement only needs to arrange personnel and carry out regular maintenance.Besides, Daqin's railway should not be used as frequently as later generations, so it doesn't need to be overhauled too much.

At present, the main problem Wei Yu encounters is that the amount of gravel is not enough...

If you want to get a lot of stones, the first choice is to go to the mountains and rivers to pick them up.However, this kind of stone is naturally polished into a nearly circular shape, so it is not suitable for ballast.The stones of the ballast should be irregular, so that they can pass through each other's edges and corners, and hold each other in place.

And if the pebbles were picked up from the mountains, after a few times of use, those smooth stones would be scattered all over the ground, making them unusable at all!
The second choice, which is also a choice of desperation, is to use craftsmen to forcibly break it into pieces.This is also the method Wei Yu is using now.But in this way, work efficiency is too low.Originally, the quality of the tools was poor, and the hammers and chisels that were handed out could not break a few rocks at all, so they would be scrapped.

Later, the craftsmen even discarded their tools and started directly, holding stones and smashing them... In this way, the efficiency is of course very worrying...

It can even be said that if this kind of thing is really relied on, in another 500 years, Daqin will not be able to save enough stones to lay railroad tracks...

After Qin Mu saw it, he was a little confused... This matter, to be solved, is actually very simple... Can gravel be considered a problem in later generations?It doesn't count at all!Just find someone who runs a black coal kiln, not to mention gravel, even a mountain, he can explode it for you!

However, the problem is that Qin Mu's attitude towards explosives is very cautious.This kind of thing is simply not suitable for this era!The reason why I don't want to spread the production method of the cannon is also based on this reason.

If you want to solve this problem directly, you have to give away the gunpowder production technology.Although it solves the urgent need for a while, in the long run, it is simply a bad idea.With this gunpowder, coupled with the fact that people don't take human life seriously now, it is estimated... that with the rise of human beings playing games, it is not impossible to destroy themselves directly!
Moreover, the remnants of the Six Kingdoms in Great Qin are not small, and the number of their dead soldiers is also extremely terrifying.At that time, if everyone has obtained the method of making explosives, it is estimated that at this time, people with explosives strapped to their bodies rushing into the Yamen will have to be performed [-] times a day!

However, if you don't give it, the gunpowder used to make cannons in your own supervisory garden can't be made every day. How can there be time to make new things for Wei Yu?
Qin Mu thought for a long time, but didn't know what to do.

He thought for a long time, the last row of heads...how did he forget that thing?

The explosives he is using now are highly intense in order to ensure the power of the cannon.Once it explodes, the huge driving force can make the shell fly far away, even five miles away!However, this kind of explosive is not the only one in this world!

Gunpowder is one of the four great inventions of ancient China. In the beginning, it did not make any military achievements.The reason is that the intensity of this gunpowder is extremely low!Although some people have tried to make muskets, explosives, cannons, and even tie them to arrows to increase the damage, but in the end they found that after a long time of waste, the effect...is about the same as a hundred stone bow...and the cost even higher...

Therefore, after a period of development, there is basically no progress.

That kind of ancient gunpowder has low intensity and is easy to prepare, so you don't have to worry about dead men...

(End of this chapter)