after the foundation construction, the following is the ground construction.

The first thing to build is not the houses in the city, but the huge dome surrounding the city.

The air on Mars cannot be breathed, and the temperature of Mars is not suitable for human survival.

So this Mars immigrant city, Yeosu, designed a totally enclosed structure.

Only a fully enclosed urban structure can resist the extreme environment on Mars and protect the safety of the residents in the city.

Dome is to ensure the safety of the city, isolated from the external environment of Mars.

The whole dome is a semicircular bowl, which is directly buckled to the city to form a safe space and protect the whole city.

Originally, when designing the city, Yesu planned to use the same design as the Mars base.

The buildings in the whole city are designed to be closed, and then all the buildings are connected through some passageways.

This kind of design is undoubtedly the most convenient choice, and the construction difficulty is countless times lower.

But in the end, Yesu abandoned the design and decided to adopt the conventional urban layout instead of the design of the Mars base.

The reason why Ye Su didn't adopt the design idea of Mars base is mainly for the consideration of the life of the residents in the city.

Living in a fully enclosed building, people will have a depressive mood for a long time, which is very harmful to mental health.

Mars base can be designed in this way, because it is full of astronauts who have their own missions on Mars.

And astronauts are in rotation at any time, and will not stay on Mars for a long time.

The residents of Mars city are quite different. If they are allowed to live in closed buildings in the future, it is estimated that some people will go crazy soon.

Therefore, Mars city should at least use a certain amount of external space for the residents in the city.

In the end, ye sucai chose the present design scheme. All the buildings were in the open air environment.

Yesu, the Martian City, plans to arrange ordinary buildings in the city, which are exactly the same as those on earth, and will not allow all buildings to be closed.

But such a design pattern needs to design a protective layer on the periphery to isolate the whole city from the outside environment.

So Yesu came up with a way to protect the city by building a dome.

Yesu plans to build a huge dome on the outskirts of the city to surround the whole city.

In this way, the low temperature outside and the air that is not suitable for human breathing can not affect the human beings in the city.

The whole dome is like an umbrella to protect the people inside.

Although this kind of design scheme is much better for the residents inside, it also adds numerous difficulties to the construction.

It's hard to think about the huge dome that surrounds the city.

On earth, just building a dome that surrounds a stadium doesn't know how much effort it takes.

Now Yesu is going to build a dome around a city, which is a super project.

It can be said that the construction of dome is the most difficult and troublesome part of the whole project.

Ye Su is now busy in this area, and now he has encountered one of the biggest difficulties in the project.

How to build this huge dome is a question Yesu has been thinking about recently.

"The materials for the dome have been delivered. I don't want to see a shortage of materials during construction."

Ye Su is in the engineering command center, asking Xiao Peng about materials.

For such a large dome, the materials needed are astronomical.

It is estimated that all the materials needed to build the dome add up to more than the entire city needs.

In terms of engineering quantity, the construction of the dome accounts for more than half of the whole project. No wonder Ye Su is concerned about this issue.

Now the construction of the dome is about to start. If the supply of so many materials is insufficient, the progress of the whole project will be greatly delayed.

"The last batch of materials has been produced and will be ready to be delivered to earth."

"You don't have to worry about material problems. You can certainly keep up with our construction progress."

Xiao Peng confirmed this matter to the earth yesterday, so he is very clear about it.

The materials used to build the dome are relatively special, so they can not be produced on Mars. Therefore, they can only be transported to Mars for installation after being manufactured on earth.Many of the materials used to build Martian cities are made locally on Mars.

After these years of development, the mining industry on Mars has been very developed, which can provide them with construction operations.

However, due to the difficulty of production, many materials still have to be transported from the earth, and the construction material of dome is one of them.

Yesu's dome is made of transparent material, and its firmness is much stronger than that of steel. It can withstand the harsh climate of Mars.

Such advanced materials can not be produced on Mars, so they can only be transported here.

The dome made of transparent materials is also transparent, so the city will have a transparent dome in the future.

Imagine that the residents of this city will look up and see the starry sky on Mars. It's amazing.

If the dome is not transparent, then the residents of the city will live in a large stadium.

No one will like this feeling, which is not much different from the enclosed building.

It was because of similar considerations that phyllosin was prepared to use transparent materials to build the dome.

Of course, after the use of transparent materials, the construction difficulty has been improved a lot.

The transportation of these materials alone is a big problem. In order to transport the materials for the dome, the pioneer has been running back and forth a lot recently.

Basically, the material from the dome accounts for most of the material transported from the earth.