Zhang Dong is at Huang Yi's side almost every day. He is very studious and likes to think.

He felt that fire guns should be developed to hit farther and more accurately. He asked Huang Yi why he didn't make as many good fire guns as possible.

Huang Yi didn't want to make as many miniguns as possible, but it was a pity that conditions did not allow it. However, with the improvement of steel quality and the improvement of manufacturing technology, it is not impossible.

But there's no way to predict how long it will take.

The top priority is to focus on the development of muskets and strive to increase the firing rate of flintlock muskets within one or two years, so that all musketeers can use flintlock muskets that are much more convenient than matchlocks.

The base area had a lot of people, cars, and large animals, so we didn't give up digging coal and transporting it to Zhangjiakou in exchange for grain and supplies.

Because the relationship with Li Weida has gone further, the Li family gave up the profits and did not even plan to make profits from selling coal, as long as they did not repay the money.

Last month, we started to settle with the base area by exchanging one pound of wheat for twelve pounds of high-quality coal.

Anyway, every ten or eight days, the base area will send a hundred carts of coal to Zhangjiakou. When the trucks come back, they always bring various goods purchased from Zhangjiakou.

At the beginning, the most purchased items were moso bamboo and steel, followed by grain, cotton, and pots and pans.

After roasting, moso bamboo is prepared to be used to replace steel bars in pouring concrete.

There are a lot of limestone, clay and iron slag required to make cement, and there are sufficient coal resources, so the output of cement can basically meet the needs.

The houses in the base area are all made of stone, and the foundations must of course be poured with concrete. Two ring beams, each one foot high and as wide as the wall, must be constructed four feet apart.

This kind of house is strong, earthquake-resistant, and has a service life of up to a hundred years.

Building a city cannot be accomplished overnight. In order to prevent the base area from being attacked by large groups of enemies, Huang Yi decided to build a single wall one foot and two inches high and one foot and two inches thick.

Ancient Chinese city walls were very thick, with many of them exceeding ten meters at the bottom and between six and nine meters at the top.

The cities planned in the base area are all concrete structures with inner and outer walls one foot and two inches thick. The inner and outer walls are separated by more than five meters. There are concrete beams between the two walls. The beams are reinforced and will be filled with gravel, slag, and coal later.

Gangue, etc.

After all is completed, the height of the base city pool will be three feet and three feet, the thickness will be one foot and six feet, and the circumference will be eight miles.

Even though we know the historical trends, we still have to prevent accidents from happening.

In order for the base area to resist cavalry raids and prevent Tatars or slaves from plundering the entire year's harvest.

The exterior wall, which is one foot two feet high and eight miles in circumference, must be completed after this autumn.

Surrounded by this single wall, hundreds of archers led by Huang Yi and hundreds of musketeers were stationed there. Without the Tatars carrying cannons, even thousands of slaves could not defeat them.

At this time, pollution issues were not considered at all, except for cement kilns, lime kilns, and brick and tile kilns located within five miles of the suburbs.

Steel factories, quilt factories, shoe factories, equipment workshops, etc. Anyway, all the workshops and local factories are in the city.

Several concrete silos capable of storing five thousand kilograms of grain will be built in the city before the autumn harvest.

Huang Yi can draw the silo drawings.

The silos in the base area were not the ones in later generations that could easily store tens of thousands of tons of grain. They could only store three to four hundred tons of grain.

This kind of silo was not worth mentioning in later generations, but it was definitely a proud landmark at this time.

There is concrete and there are bamboo bars instead of steel bars.

The silo designed by Huang Yi has a circumference of fifteen steps and a height of four feet. Its service life cannot be less than seventy years.

With the tube -proof and mildew, in the north where the climate is dry and cold, the loss of grain can definitely be close to or even surpass the inspection standards of later grain depots.

Grain can be saved, how important it is.

Therefore, not only do you have to grasp the harvest to ensure that the particles return to the warehouse, but also to prevent all unnecessary losses.

Book friends should never think that the city will be built in the city. In fact, the ancient cities are not large.

There are more than 500 meters in the Ming Dynasty, and a city with a long week of week long covers an area of ​​only one square kilometer exceeded. It is not separated from a large community in the later generations.

In fact, concentrate all manpower construction cities, and have the ability to complete it after autumn.

But it doesn't need to be so, because the Kim Junjun could not care about the tigerdun rabbit in the past two years.

The city of the base has a four -meter -high wall, which is enough to defend the cavalry raid.

The priority is to solve the improvement of clothing, food, housing and transportation, so the quality of life of the masses.

Because a large number of cotton, cotton cloth, and because there are no wool, sheepskin, cowhide on the prairie, no one has no clothes to cover the body.

Everyone has at least one cotton jacket, a quilt, and most young people have a white wool, pants, more than a pair of sheepskin horse boots or cotton cotton shoes.

Food, food, housing, clothes, and clothes are basically solved. The problem of eating is not less than 80 % full.

There is no shortage of cattle and horses in the base area. There are many cars.

The only problem that has not been completely solved is to live, because many people are crowded in the Mongolian bag.

After being busy in spring, the most important job is to build a large number of warm -keeping housing, which requires that everyone can live.

Of course, it is impossible to have too high living conditions this year. It only meets the most basic needs.

The people who set up the family have their own little homes, and the rest must ensure that they live in a warm collective dormitory.

Each collective dormitory must be built to build a fire to meet the needs of 20 people.

In general, small families are allocated inside, there are two rooms outside, and there are bedrooms inside. Building fires that can sleep seven or eight people.

In winter, it is not just winter. As long as it is too cold and unable to plant fields, in principle, everyone lives in the city.

Food, daily necessities, bedding, clothes, etc. must be stored in the home in the city. Of course, if there is no family, it is a collective dormitory.

Of course, the geography of the plant is out of the city, but some fields are far away from the city, and the time is delayed to delay time every day.

So need to build a collective dormitory for concentratedly lived.

The dormitory outside the city only needs to be covered by the wind and rain, which can make fire and cook. It belongs to temporary buildings.

From the beginning, the method of concentrated living is not only to facilitate management, but the bigger reason is to prepare for war.

It can be imagined that the base will definitely be attacked.

According to Jiannu's military habit, it is basically a war after autumn.

When they come to the base area, they must ensure that they cannot grab a grain of food, cannot grab a family, and cannot catch a Hanmin.

At least, the Han people who could ensure that Jiannu could not be intimidated to be arrested participated in the siege to be a cannon fodder.

They came away and could not complete the supply through robbery. They were destined to suffer.
Chapter completed!