The figure of 10,000 square meters is also a conclusion reached after taking into consideration the existing engineering capabilities and the food demand in the future.
When Zhao Changxing first arrived on Sedna, he had no shortage of high-performance building materials, but was extremely lacking in engineering capabilities, so building on the surface was the best choice. But now, these two conditions are reversed.
He no longer lacks engineering ability, at least not that much, but he is extremely lacking in high-performance building materials - the building materials produced at this stage are obviously not as good as those produced by people in the earth age, so it is natural to build underground.
To build the second planting base, the first thing that needs to be done is to plan the drawings. In this regard, Xiaoxi's database stores a large number of various drawings. Basically, Zhao Changxing only needs to enter his own requirements and enter his own
With existing materials, drawings can be automatically generated with one click of the mouse.
Therefore, after each production line entered a roughly stable production state, and two people were left to look after these, two more people were left on the Spark spacecraft, and two people were responsible for mining minerals, Zhao Changxing took the remaining four
Individually, the preliminary civil construction work began.
The No. 2 planting base is only about a hundred meters away from the No. 1 base. After completion, the two will be directly connected through underground passages.
Choosing to build the No. 2 planting base underground means a huge amount of earthwork. After a simple calculation, we can draw the conclusion that the No. 2 planting base covers an area of 10,000 square meters and is 3.5 meters high. The amount of earthwork is convenient.
Up to 35,000 cubic meters. Calculated based on the density of the rock formations in the selected area, the mass of this earthwork is as high as about 70,000 tons.
The actual data will exceed this figure by 30% to 50%.
Even if the gravity of Sedna is extremely low, this cannot be accomplished solely by manpower. It must be done with the help of machinery. And the only space vehicle, Red Flag, must undertake the task of mining and transportation, and it is impossible to be deployed here.
.
Fortunately, Zhao Changxing had already considered this matter and had a way to deal with it in advance. That was to use some spare parts of the Hongqi space vehicle and 3D print some parts to "save" a new construction machinery
Come.
The newly manufactured machine was named Red Star by Zhao Changxing.
The performance of the Red Star is obviously not as good as that of the Red Flag, and when driving it, there will always be abnormal noises and tremors from unknown sources inside, which makes people have to wear spacesuits while sitting in the cockpit to avoid
Accidents may occur, but it is still a machine, and its efficiency is much higher than that of human power.
At this moment, Zhao Changxing drove the Red Star space vehicle and began digging first.
The area where the No. 2 planting base is planned to be built has been marked with markers. Zhao Changxing drove the Red Star here. The first thing he did was the crushing work. After breaking the hard rock formation, he then changed to a bucket and dug the rock directly.
When the truck bucket is full, an auxiliary personnel will complete the connection between the space vehicle and the truck bucket, and the space vehicle will directly drag the bucket to transport the earthwork to other places.
The excavation depth of the first layer is one meter until the entire planned area is excavated down to one meter, and then excavation work one meter deeper will begin, and so on until the excavation is five meters deep.
This is a large pit with an area of 10,000 square meters and a depth of five meters. The planned No. 2 planting workshop has an internal height of 3.5 meters. Counting the thickness of the walls, the final height will be about 3.9 meters.
After it is finally built, the excavated earth will be backfilled again until it is flush with the ground. This means that there is a 1.1-meter-thick rock layer above the No. 2 planting workshop, and such a thick rock layer can completely
Instead of the radiation protection layer, it can even function as a sealing layer and insulation layer.
So on the Sedna planet, Zhao Changxing and an auxiliary staff, tentatively named Chen Feng, began the work of "repairing the planet" again.
On the first day, Zhao Changxing completed about 40 cubic meters of earthwork.
The next day, the driver of the Red Star was replaced by Chen Feng, and Zhao Changxing took on the auxiliary work. With this rotation, the two of them could basically complete dozens of cubic meters of earthwork every day.
At this rate, it will take more than two years to complete the entire earthwork operation.
This time is acceptable. It is also planned.
Half a month into the earthmoving work, Zhao Changxing had an unexpected surprise. He unexpectedly discovered that there were actually some pyrite reserves underground here. Although the quality was not too high, it was better because it was close enough to be used.
Convenient enough.
So another space vehicle, the Red Flag, was also transferred over to fully support the earthmoving operations here, so the amount of earthwork transported every day quickly increased to nearly 100 cubic meters.
Correspondingly, in the industrial zone, under the busy work of Qian Yue and others, a large amount of building materials were produced and prepared for use after the earthworks were completed.
It took Zhao Changxing nearly two years to dig this big pit before it was finally completed. The subsequent foundation and wall leveling work took another two months. Now, the actual construction of the No. 2 planting workshop can finally begin.
The follow-up work was tedious, troublesome, and very delicate, so it had to be done manually. For this reason, Zhao Changxing suspended the rest of the work as much as possible, except for the two people who had to be on duty in the Spark spacecraft, and continued
In addition to the two people who produce building materials, the remaining six people have all been summoned to work with him to carry out subsequent construction operations.
People first laid an isolation layer at the bottom of the pit to prevent the No. 2 planting workshop from direct contact with the rock formation.
When building the No. 1 base, the isolation layer only needs to be laid at the bottom, but this is not possible in the No. 2 planting workshop. Not only the bottom, the front, rear, left, right, and ceiling walls need to be laid. Because it is buried underground, six
All surfaces are in contact with rock formations.
There is no need to consider the top for the time being. After the isolation layers on the other five sides are laid, it is the sealing layer and the insulation layer. After these two layers are also laid, a large number of pipes and cables need to be laid.
Originally, the pipes and cables were integrated into the plates, but at this stage, Zhao Changxing obviously did not have such advanced technical capabilities, so he could only do the next best thing and separate them and lay them separately.
Because the No. 2 planting workshop does not have independent energy, water supply, heating, garbage recycling and processing capabilities, these things need to rely on the equipment in the No. 1 base. The pipes and cables that need to be laid are not just
Inside the No. 2 planting workshop, it must be connected to the No. 1 base.
In particular, automation factors need to be considered - the crops in the No. 2 planting workshop obviously cannot be taken care of by humans, and everything needs to be completed automatically, which further increases the difficulty of construction and the amount of work. But there is no way, Zhao Changxing
The only option is to bite the bullet and do it.
He thought it was worth doing something that was once and for all, troublesome at first and easy to do later on.
After the preliminary work on the other five sides except the top has been completed, it is time to build the top layer. When the top layer is completed and passes the sealing test, the people who come back to work here can be freed from the constraints of the spacesuit.
Complete subsequent work with higher efficiency.
Before building the top floor, people first need to complete the fixing of the support rods.
Originally, with the gravity of the Sedna planet, so many support rods were not needed to support and fix the top layer. But when you include the 1.1-meter-thick rock layer that will be laid on the top layer in the future, it is different.
However, in order to prevent too many support poles from occupying too much available area and causing losses, Xiao Xi's design drawings designed these support poles into the separation wall as much as possible, and used as many gaps between different areas as possible.
Isolating walls replace the role of support rods.
It took more than a month to install and fix the support poles. At this moment, the bottom of this "big pit" is full of densely packed support poles arranged in a certain pattern, pointing straight to the sky, like some traps used to catch prey.
Same.
After installing the support rods, beams, trusses and other support structures, the first ceiling panel was successfully laid to the predetermined position. It took several more months to finally lay out all the ceiling panels with a total area of 10,000 square meters.
The layering is completed.
"The sealing test is ready."
Zhao Changxing thought secretly.
The final finishing work of this stage was completed, and the sealing test started as scheduled. These two days also gave people a rare break.
Zhao Changxing once again held a hot pot conference, using hundreds of kilograms of beef, mutton and pork to reward people for their hard work during this period of time.
This hot pot conference is so huge that it can no longer be accommodated in the cabin of the Fireship spacecraft. The main reason is that the 60 children of the third generation are now seven years old and can eat normally. Of course, the hot pot conference
They are also indispensable.
The second generation of children are now 17 years old and will soon reach adulthood.
There was no other way, so Zhao Changxing had to adopt the method of eating in batches. He first took care of the third generation children with the first generation young people and the second generation teenagers, and then put them into the entertainment area to let them finish their meal.
After they play with toys and watch TV by themselves, it is their turn to eat.
"Today, the No. 2 planting base has reached a milestone stage. I believe that it will not be long before we can produce more food, more meat, eggs, and milk, which will support us to reproduce a larger population."
Zhao Changxing held up the water glass with joy - it contained apple juice diluted with a large amount of water, with only a faint apple flavor - and motioned to all the young people and teenagers: "Here, cheers!"