Doomsday Bunker Upgrade Chapter 495: The idea of the dome city
Genius for a second to remember the address of this site: []The fastest update! No ads! The idea of the dome city is not new. As early as the last century, some architects and science fiction creators have proposed such a concept.
It's just that it was limited by various factors such as environment and technology at the time.
In the imagination of these people, the dome city should be covered by a huge dome, which can isolate the influence of unfavorable weather such as rain and snow from the outside world, and can control and adjust factors such as light and temperature to build a perfect living environment.
There are not many such plans and designs, but because of the huge capital investment and the need for strong industrial and technical support, so far, this concept has remained on paper.
Although there are some buildings that can be called domes, these do not meet Chen Xin's requirements.
One of the most important points, of course, is that the scale is not large enough.
Most of the domes currently built by humans are just individual buildings. No matter how large they are, they are almost the size of a stadium, an airport, or a station. Compared with the city-level scale that Chen Xin expected, Naturally, the difference is far.
However, these domes still gave Chen Xin a lot of reference.
In fact, an important reason that restricts the emergence of dome cities is that the technology is not very useful under normal circumstances.
Although it sounds wonderful to say that a huge dome covers the city and isolates the intrusion of catastrophic weather such as rain and snow, other effects that follow need to be considered comprehensively.
Added to the constraints of construction cost, construction difficulty itself, and the bigger the city needs, the bigger the dome is, this kind of thing that looks beautiful and futuristic becomes less realistic.
As for another important factor, that is the dome itself.
The dome used by Chen Xin's scientific research center at the beginning was a steel structure and a glass exterior wall. Although they used new materials, the overall weight was still not light.
Fortunately, the scientific research center is not too big. The steel structure and glass outer wall can also be supported. In addition, the outer wall has snow removal measures, so there is no risk of over-loading and overall collapse.
But to expand the dome to the point where it could cover an entire city, the combined weight of the steel and glass façade would be staggering.
So in order to actually build the dome, the material and structure of the dome itself need to be carefully considered and designed.
The simpler method is naturally to lower the height of the dome, increase its arc, and make it a flat arc similar to the dome of the scientific research center, rather than making a hemispherical cover.
This saves both material and the weight of the dome, which under current conditions can support the dome that envelopes a city.
The curved dome itself can effectively prevent the accumulation of snow. As long as it is equipped with a suitable snow removal system, the dome itself is not worried about the possibility of snow falling and collapse.
But even so, Chen Xin doesn't plan to continue using the glass curtain wall as the outer wall of the dome.
The first is naturally the weight of the glass itself. In addition, what is to be built is a dome that covers a city. The consumption of glass is undoubtedly astonishing. of glass.
And the use of glass domes, construction difficulty and construction period are all issues that need to be seriously faced.
In comparison, another material is undoubtedly more suitable.
This material is the membrane, more formally known as the ethylene-tetrafluoroethylene copolymer membrane.
The ethylene-tetrafluoroethylene copolymer film is a crystalline polymer with a melting point of ~. It can self-extinguish when burning. Its high shear mechanical strength, low temperature impact resistance is the best among the existing fluoroplastics, it can have high impact strength from room temperature to -, stable chemical properties, good electrical insulation and radiation resistance.
It can be said that it is the most ideal material for making domes among all materials at this stage.
In the 1990s, this material has been used as a covering or shed film material.
The Water Cube, one of the main venues of the Yanguo Olympic Games, is also the exterior wall made of this material.
If the dome is made of this material, it is possible to achieve the lightest mass while ensuring sufficient strength.
As for the problem of cold protection and heat preservation, this problem can be solved only by covering the outer layer of the film with a layer of heat preservation material.
With such a large dome that can keep warm and cold, the area covered by the dome can leave the deep underground shelter and resume life on the ground before the disaster.
After all, it has been two or three years since the disaster struck. Although there are still meteorites falling from the sky, the number has been greatly reduced, and the surface is no longer so dangerous. The safety of the dome city is still adequately guaranteed.
And even if it is hit, the damage to the membrane is undoubtedly easier to repair than the glass curtain wall, and it is more convenient to maintain and repair.
After solving the problem of the dome, there is no need to worry about the remaining city construction problem itself. The city builders of the Yan Kingdom have enough experience in this area to solve all these problems.
After doing this calculation, Chen Xin found that the conditions for building a dome city are already in place, and there is no technical hurdle to move forward.
If a dome can be built, with a dome to block the cold outside, even without a large heating facility such as an energy tower~IndoMTL.com~ The temperature inside the dome will not be too low.
As long as the internal heat is not lost, the ambient temperature in the dome can be maintained within an acceptable range, allowing people who originally needed to escape the cold in the underground shelter to return to life on the surface.
Not to mention that as long as an energy tower is erected in the dome, the temperature in the dome can be the same as that of the scientific research center, so that the four seasons are like spring, and even support a basic need to restore the former ecological environment.
Thinking of this, Chen Xin couldn't hold back his thoughts, so he quickly sorted it out and planned to report it to the country to promote the construction of the dome city.
However, before submitting the report, Chen Xin felt that he should come up with a complete set of design plans first, rather than handing in such a rough plan.
Although the construction of a dome city is theoretically feasible, how much impact will such a huge dome have, how difficult is the construction, whether it can be successfully built in today's environment, and if so, where will it be built? , and how to complete the construction, this is something that needs to be considered.
So after Chen Xin hesitated for a while, he decided to improve the entire plan first, at least after completing the feasibility study, and then report it.