Daming: I asked you to hang yourself, but I didn’t ask you to rebuild the Ming Dynasty

The questions and answers between these two people thoroughly explained the three major problems that plagued the progress.

Everyone nodded frequently.

Yes!

The most difficult are these three points:

Transporting gravel, building bridges, tunnels, blasting mountains, etc., and dealing with the seepage layer of roadbed.

There is no shortage of workers.

There is even no shortage of vehicles!

What's missing is that the road is narrow and vehicles can't move!

The prerequisites for mountainous roads have already determined the upper limit of transport capacity.

And stones are only found in mountainous areas, so they decided they couldn't get around this limit!

Now, the five-year plan proposed by His Majesty——

According to the current speed of highway construction, it is enough to exceed the tasks set by His Majesty.

And the railway...

I’m afraid I won’t even finish half of it!

Without him!

The railway route proposed by Zhu Youjian will still be full of difficulties even in later generations!

This is why everyone came running after Bi Dengfu came up with a conjecture!

As for the terrain of the Shangyu Ancient Road, it has been widened as much as possible.

However, this terrain...

What is being transported is still heavy stones.

If a car breaks its axle, it can block a large area!

The speed is really too fast!

Many people may not believe that with such powerful technology in later generations, China has made its shield machine as cheap as cabbage...

That Humaling Tunnel only dug four meters in a month...

The difficulty of building roads in mountainous areas is evident!

Although the ancient trade road has been a trade road for thousands of years...

However, the widening project is still very difficult!

Bi Maoliang is the most impatient.

When he saw that his son talked a lot but did not mention his own method, he immediately became anxious.

However, it was his son who spoke.

He couldn't interrupt rashly, so he immediately had to kick his younger brother Bi Maokang.

Bi Maokang glanced at his brother and saw his anxious look, so he had to ask:

"We are all aware of these problems, tell us your solutions!"

Bidenfu agreed.

Bidenfu said:

"My proposal is to use trains to carry gravel!"

Wang Zheng laughed.

whispered:

“I’ve also thought about transporting gravel by train.”

"but!"

Wang Zheng shook his head:

“Stones are not produced on the plains.

Our goal is not to blow up the mountain to extract rocks, but to transport the stones for road construction along the way.

It is waste utilization.

In other words - most of the gravel used in building railways was obtained from ancient roads by diggers.

Because it is a mountainous area, there are not many places where trains can turn around.

If the horse-drawn carriages that are easy to turn are completely replaced by trains, congestion will inevitably occur.

This must be considered! "

As the number one technology master of this era, Wang Zheng naturally knows the pros and cons of trains.

This method is feasible in principle.

However, in terms of terrain like the Shangyu Ancient Road——

There is no room for implementation!

A train is no better than a big car. It can turn around just a little bit of road.

The dispatch field required for this thing is really huge!

"Yes!"

"The scheduling site cannot be built. This method may be difficult to implement!"

As soon as Wang Zheng said this, most of the people present were technical talents, so they naturally saw the problem at a glance.

Most of the narrow Shang-Yu Ancient Road is surrounded by mountains.

It is difficult enough to dig a road. If Bidenfu's method is followed, too many train U-turns will be needed, and the gain outweighs the loss!

Everyone immediately agreed.

"No no no!"

Bi Dengfu said hurriedly:

"Please note!

My method is to use double heads!

A normal train has only one locomotive in front.

When making a U-turn like this, a dispatch yard is naturally needed!

We can definitely add another front end at the back.

When the time comes, when heading north, pull in front and push back.

When going south, you pull from the back and push from the front.

In this case, there is no need for a dispatch yard for turning, and a single section of normal railway can allow trains to travel.

and so!

My method only requires normal railways and does not need to build a special dispatching office. "

Bi Dengfu explained it again and said with a smile:

"besides!

Our current trains are all five-carriages.

The carrying capacity is only 60 kilograms, which is more than [-] stones.

After adopting double heads, the power is doubled.

In this way, ten carriages can be suspended.

In this way, a single train can carry 130 stones of gravel. "

Bi Dengfu said seriously:

“I have calculated that only two hundred trains are needed to match today’s horse-drawn carriage capacity.

And all it takes up is just a railway!

Taking the standard width of Shangyu Ancient Road Xinlu as two feet - we only occupied a quarter!

The entire ancient Shangyu Road can be completely freed up.

However, the speed of laying is not comparable to current methods!

Moreover, it also saves a lot of labor! "

Song Yingsheng raised another question:

"How can we solve the dead time caused by so many trains loading gravel?

If it's a train, load it and move it out, then drive in to load the next one...

I'm afraid it will take more time!

If this problem cannot be solved, it will be a big trouble! "

Assistant Chen Jinzhang laughed. They had already thought about this problem:

"Mr. Song, we can calculate the time first, divide the areas, and specify the locations of different trains.

Calculate these issues in advance and then schedule them as needed!

For example, the Jiazihao quarry in Jiadi uses Jiazihao trains exclusively.

In front of him, the No. B train was loading at the quarry of B...

In front of the court, there are Bingzi number, T number...

In this way, our trains have different locations for loading gravel, different delivery times to the construction site, and different locations.

However, the loading time is unified, and the starting time will naturally be unified too!

Just calculate these.

You can run many trains on one railway line at the same time!

As long as the preparatory work is done well, we can drive hundreds or even hundreds of trains on a railway line.

We can even cover the entire mountainous area and all the quarries with trains!

in this way!

This problem can be solved! "

Bi Dengfu smiled:

"Elders, please be patient.

I have a plan, you can see it at a glance! "

Bi Dengfu clapped his hands and asked two students to pull over a blackboard made of iron sheets and fix the two first officer drawings on it with magnets.

On the first drawing, there is a train transporting gravel. It can be clearly seen that there are some rails and sleepers fixed on both sides of the train.

However, this drawing has more train carriages than there are in operation today, and there are two locomotives, placed one behind the other on the carriage.

This is Bidenfu's vision.

The second drawing is a road map.

One end is in the mountains and the other end is on the plain.

The railway is covered with small boxes representing trains, almost densely packed together.

……

ps: Regarding the transportation capacity of horse-drawn carriages, some people say that two-wheeled vehicles can drag as many as they want. The author does not understand common sense...

That's right.

Even that frame truck can pull more than 2000 kilograms if it is pulling heavy objects. Even during busy farming periods, it is no problem to drag three thousand kilograms.

Our country had four-wheeled carriages as early as the Spring and Autumn Period, and even four-wheeled carriage toys unearthed in the Han Dynasty are not uncommon.

So, why do these more capable vehicles never become mainstream.

On the contrary, it can only prevail in the north of the canal (north of Xuzhou)?

Did the ancients not see the advantages of four-wheeled carriages?

Turn over the topographic map and you will find that it is a great plain in an arid area.

This kind of terrain determines how four-wheeled vehicles can survive in this area.

In other areas, there is no soil used!

China is a country with many mountains and rivers.

I have explained before that the capital of the Han Dynasty is located in a low mountain and hilly area in the remnants of the Qinling Mountains, which is the area between Danjiangkou, Laohekou, Dengzhou and Xichuan.

In a place like this, if it is really full, what will it be like?

Two oxen per cart, or five or six people per cart.

Because of the mountainous area!

Otherwise, I can’t push it!

In this way, isn’t it half the result with half the effort?

I'm not the kind of city kid who calls me "Cousin" even though I'm a brother-in-law.

Laughed.

I was born in a rural area, and my family has not farmed for less than ten years. This is because the villages and towns took the lead in large-scale contracting.

The wisdom of the working people has accompanied me for the first twenty years of my life.

I have to say that no one is omnipotent, and no one can be omnipotent, but as a matter of common sense...

I think it can still be avoided.

(The above does not account for the number of words)

Third update today.

see you tomorrow!