Fortress! It was lamented by the Western soldiers of this era as "an architectural marvel fortress that cannot be attacked"!

Hollow enemy platform!

Duplex Strike!

Full firepower!

…………

What a brilliant and advanced design concept is this? In this era, the architectural art and skills of the Chinese people have reached such a profound level.

From the outside to the inside, moats, piers, urns, hollow enemy platforms, city walls...... Even if there is a 1 in 10,000 chance that the walls will be breached, there are all kinds of complex lanes and equally thick partition walls.

It is conceivable that if the castle is completely built according to the plan of Gao Danian, then an extremely sophisticated and strong defense system will be formed, as long as the fresh water and rice in the city are sufficient, there will be ten times the army outside the city, and it will be difficult to take it down!

If you want to gnaw down, you must be mentally prepared to pay more than ten times or even dozens of times the casualties!

Dong Ce has been completely shocked, the Chinese of this era, in some aspects of science and technology, have completely stood at the top of the world, but unfortunately, they were ruined by those ministers in the DPRK.

Looking at Gao Danian who was talking eloquently in front of him, Dong Ce couldn't help but sigh in his heart, in the West of the same era, a senior craftsman like him could be called a master of city building and respected by people. Titles, wealth is also endless, and it will even be hired as an advisor by the rulers of certain empires or = one = book = read = novel xstxt principality to build a fortress defense system throughout the country. In Daming, such people still have to worry about starving to death, and because they have no food, they have to let their wives and daughters go out to sell × prostitution× do secret prostitution, and they have to beg for food from door to door......

Dong Ce interrupted Gao Dacheng's words, and he said with a smile: "What if my city is not only to garrison soldiers, but also to live in the people? ”

"This?"

Cold sweat broke out on Gao Dacheng's forehead, and he quickly calculated it in his heart, and his eyes swept over and over again from all over the rock castle.

"But there's no need to rush." Dong Ce said with a smile: "You two go back and think about it slowly, as long as you can get the drawings in these two days, of course, the sooner the better." ”

Dong Ce added: "If you do it quickly and well, this official will definitely be rewarded!" ”

The two grandsons were already very dedicated, and when they heard that there was a reward, their hearts immediately became even hotter.

The white glittering gold and silver beckoned in front of them, and the enthusiasm of the two was greatly mobilized, and they actually drew the drawings for Dong Ce early in the morning of the second day.

This also greatly surprised Dong Ce, he thought that the two of them would have at least two more days to go.

Dong Ce glanced at them, the first time they came to Dong Ce's official hall, they were very reserved. Both of them had red eyes, and obviously they hadn't slept all night last night, but their expressions were quite excited. Dong Ce looked at them, and for no reason he thought of the technical men in the later generations who stayed up late and fought for several days in a row to kill countless coffees, and finally overcame a technical problem.

They could not write, but they could draw, not on paper, which was too expensive for them to afford, but on a large six-foot-square stencil with a smooth surface. It's not the pen that draws, it's the ink line.

A complete defense system was presented in front of Dong Ce.

The outermost moat, the sheep and horse city behind the moat, the four corners of the sheep and horse city and the four corners of the city wall form a straight line, and the four piers above are all complete.

There are no gates in the north of the city, only three gates are opened, and there are towers above the gates, and there are urn cities outside. The small gate of the east gate of the urn city is open in the north, the small gate of the south gate of the urn city is open in the east, and the small gate of the west gate of the urn city is also open in the north. There is also a female wall built on top of the urn city, and there is also a hidden soldier cave inside.

And what interests Dong Ce the most is the shooting in the city.

Fifteen paces wide open space was left on the inside of the wall, and the inside of the city was divided into nine areas by a high wall.

The first is the four corners of the city, each of which is occupied by a triangular area, which is a very standard right-angled triangle, with two right-angled sides parallel to the wall. Take the triangle in the northwest corner, for example, there are three walls in this area, the north wall is parallel to the north wall through the open space, and the west wall is parallel to the west wall through the open space, and the angle between the west wall and the north wall is 90 degrees. The end of the west wall and the end of the north wall are connected in a straight line, which is the third wall.

And so on.

These are four right-angled triangle areas on the four corners.

In the center of the city, there is a square area, as if the city has shrunk a little bit, boxy. This kind of setting is generally found in larger cities, and it is called the inner city. Put it in the capital, that is called the imperial city.

And in this way, in the area of the right triangle, in the square area in the middle, and between the city walls, four isosceles trapezoids are formed.

Four isosceles trapezoids, which appear in the position of the city gate. Take the isosceles trapezoidal shape in the south gate as an example, the shorter one is parallel to the south wall, the longer one is parallel to the south wall of the square area in the middle of the city, and the two waist lines are parallel to the third wall of the two right-angled triangle areas in the southeast corner and southwest corner, respectively.

In this way, Chengzhong has formed nine independent areas ×× each other.

Gao Danian got Dong Ce's signal, strengthened his courage, and stepped forward to explain: "Your Excellency, please see, the city is divided into nine areas, these nine areas are built up of high walls outside, and between the high walls are formed roads, none of the roads are straight, they are all curved and bent, even if the enemy enters the city, they can not move forward smoothly, there are many corners of the road, and fortress defense can be set up at every corner. ”

Then he ordered those areas to explain one by one, and Dong Ce saw that he didn't mark them on them, which was also troublesome to say. He called Bai Zhongqi, who was the minutes of the meeting, and asked him to write the names of each area on them.

The four right-angled triangle areas are A, B, C, and D in a clockwise direction, the four isosceles trapezoidal areas are Zi, Chou, Yin, and Mao, and the central area is the inner city.

In this way, it is much more intuitive.

According to Gao Danian's explanation, the four isosceles trapezoidal areas are for the common people, and the homestead should be planned inside, similar to the workshop. However, the roads in the square should be straight and convenient, and there should also be pavements facing the street, so as to facilitate the people to live and come and go. In Dong Ce's view, these four isosceles trapezoidal workshops are similar to the four communities in later generations, except that high walls have been built around the communities and they are closed.

Zi Chou Yinmao, each square only opens one door, close on time, and when the gate is closed, it is also a fortress that is difficult to overcome.

The four right-angled triangle areas, the northeast corner of Area A is the granary, forage field, the southeast corner of Area B is the arsenal, the southwest corner of the C area is the craftsman area, and the northwest corner of the D area is the horse farm horse circle.

In the inner city, there is Dong Ce's official residence and official hall, and the soldiers' barracks are also here. Its layout is that Dong Ce's official residence sits in the north and faces south, there are several long rows of barracks on both sides and in the south, and in the middle is a large school field for training.

There are four wells in the inner city, two in each of the four squares of Zichou Yinmao, three in each of the four districts of A, B, C and Ding, and five wells must be drilled in District A, where the granary and forage warehouse are located.

The whole building system, one ring after another, makes full use of all the space. The layout is reasonable and tight, which can not only garrison troops but also inhabit civilians, and even better, the high walls outside the districts can not only build curved roads and form defenses, but also can be insulated from sound and prying eyes. It can keep military secrets, and it can also ensure that soldiers will not disturb the people.

Below Dong Ce, the people in charge of the Rock Fort are all here, and when they read this drawing, they were quite shocked in their hearts, and they were also impressed by these craftsmen.

Dong Ce stared at this drawing for a long time, he looked at it very carefully, and he had to look at every place carefully, thinking about it while looking at it.

Gao Danian and Sun Wumu were both waiting there with anxiety, for fear that the adults would not be satisfied.

After a long while, Dong Ce finally gave a high-five: "Okay!" That's great! ”

He looked at the two grandsons and said, "You two, you have a great merit!" ”

The two of them were overjoyed in their hearts, and quickly knelt down and kowtowed, indicating that they didn't dare.

"Get up! Get up and speak! Dong Ce was in a very good mood, and laughed: "The official asked you, how much silver does it cost to cut such a castle?" ”

This time it was Sun Wumu who replied, obviously he was more proficient in the calculation of money and property consumption in this area: "If you go back to your lordship, generally speaking, the cost of a fire pier is roughly two hundred taels of silver, and the large side pier is doubled." The small castles that the villains had built before were one mile long in circumference, and had to pay three hundred taels of silver for labor, six hundred taels of silver for materials, and so on, not counting the laborers for food and drink. Roughly calculated, there must be a thousand taels. ”

"The rock fort is roughly square, one hundred and ten zhang long from east to west, one hundred zhang wide from north to south, and the city wall is two miles and fifty zhang long. The city wall must be two feet high, and this alone will cost more than 1,000 taels of silver. But yesterday, the two of them walked around the Rock Fort and found the remnants of the Rock Fort wall, which was five or six feet high. It is the most dilapidated place, and it is also five or six feet high, so that the city wall does not need to be rebuilt at all, but only needs to be slightly repaired on the original foundation, built to a height of two zhang, paved with bricks and stones, repaired the wall, and built a good female wall. I don't know what adults think? ”

"Yes, that's it!" Dong Ce nodded in agreement.

He knew very well the strength of these remnant walls, which were hard enough to sharpen knives and axes, and were much stronger than ordinary city bricks. It will be much easier to reinforce and repair on the original site, and I don't know how much money I will save just by laying the foundation -- the construction of the city wall requires a very high foundation, and it is necessary to dig six feet deep, and it is necessary to have a large bluestone at the bottom to ensure that the foundation is firm.

Not only does it save money, but it's also sturdy enough.

"The city wall has always been the most expensive piece, and this piece can be left, so the villain estimates that after the whole is completed, the cost will be roughly around 10,000 taels."