Chapter 136： Metro construction plan

This time, it is a workshop dedicated to the production of vehicles and general equipment.

The production line in this workshop is more complicated and larger.

The height of the fourth floor is about ten meters, which is built by Ankai according to the needs of the workshop, which requires the highest height. That workshop is dedicated to the manufacture of military vehicles, such as tanks, such as armored vehicles. In reality, the workshop that produces these armored vehicles needs a high ceiling. He doesn't know. Anyway, the system requirement is ten meters, which is also in all workshops. The most highly demanding.

Then directly estimate the space according to this standard.

Others, such as gun production workshops and general vehicle production workshops, can't have this height, and it doesn't matter. What he needs is the ground on the fourth floor, leaving a full eleven meters away from the third floor.

The elevator shaft needs to be dug deeper, but is this a problem?

Elevator shaft can be said to be the lowest requirement among all system buildings. It requires less space and can be extended down or up at will, not to mention how easy it is to expand.

As long as An Kai is willing, he can even easily drive the elevator into a depth of hundreds of meters underground, but there is no need to do that temporarily.

But Ankai has a plan, and it is a very large plan, that is, the sub-base!

A shelter has its limits after all. No matter how it develops, it is theoretically limited by local resources.

The most resource of this land under his feet is aluminum ore, then coal mine, and iron ore... and then there is no more.

Other associated mines are naturally there, but the scale is too small, and the systematic mine has a big drawback, that is, those associated mines cannot be collected.

Associated mines and main mines will appear 100% in the same deposit, and basically have no separate mining value, but useful minerals or elements that can be exploited together with the associated main minerals.

such as platinum, zinc, gold, etc. in porphyry copper deposits, wolfram ores; tin, molybdenum, min, ni, dan, mi and crystals in porphyry deposits. Associated minerals are relative to the main minerals. Because they have similar geochemical properties and common material sources, they are often associated in the same deposit.

Associated minerals may occur in independent minerals, such as bauxite in porphyry copper ore; or they are isomorphic or mechanically finely mixed, and are contained in the main minerals, such as galena and sphalerite. Tin, indium, gallium, germanium, etc. It is necessary to carefully study their occurrence state and distribution characteristics in order to adopt reasonable beneficiation and smelting process, to be recovered and comprehensively utilized.

In short, in reality, mining, no matter what kind of mineral, if you encounter an associated mine, it will probably be produced at the same time.

But this is not the case for the system.

Under the system framework, a mine can only set one type of mineral, and then the mine’s probe will be very rigid and only mine this type of ore, and the mining time is accurate, absolutely black technology level, it stands to reason that the associated mine and the main mine itself It is difficult to distinguish each other completely, but the system mine can do it. If iron ore is mined, iron ore must be mined. If there are rare earth-associated ore in the iron ore, then I’m sorry, the mine will not take care of it at all, and it will even take the initiative to separate it very intimately, which is very depressing.

Therefore, if you want to diversify materials, it is a must to get out of the land here.

Expansion on the ground is definitely impossible, unrealistic, and too dangerous, so Ankai’s plan is to open the base through the subway.

The manufacturing difficulty of the subway is not high.

is at least for him who owns the system.

The first step is to build a tunnel. This is very simple. The system provides a special tunnel template. Just build it directly. Many underground railway tunnels are smaller than those on the main arterial lines; therefore, in general, underground railway trains are generally smaller in size, and the construction of tunnels saves materials more than the building of shelters, but considering the length of the subway , If the total is added up, it becomes a very exaggerated figure.

Then it is to lay the rails. This step is the simplest in theory, but Ankai has to consider a more practical issue, that is, the power of the subway.

There are also several subway power schemes provided by the 　　 system, but at present, the most suitable shelter must be rail power supply, which is also one of the most common methods of railway electrification.

There are many benefits of rail power supply. Among them, Ankai’s most important thing is that the cost of installing live rails is often lower than that of catenary, because the catenary needs brackets and the circuit rails are not used. In fact, the cost issue is the main reason why many rail power supply systems have not switched to catenary. Secondly, the impact of natural disasters on live rails is less than that of catenary, except for flooding, which he does not need to consider, because there is no flooding underground. Then the live rail is more suitable for installation in tunnels with smaller headroom than the catenary. On the one hand, it also saves the consumption of manufacturing tunnels. Finally, some passengers think that the catenary is unsightly. In contrast, the visual effect of live rails is better. Of course, this reason is not important.

As for shortcomings, there must be some.

For example, exposing live rails outdoors is dangerous, this Ankai doesn’t need to be considered. The voltage issue needs to be carefully considered, but as long as there are enough generator sets and stable enough, the problem is not very big.

The problem of current loss needs to be considered. Since the electrified track is close to the ground, the current is sometimes lost to the ground. Some electrified tracks will be added with aluminum bars to reduce current loss. However, because the expansion reaction of aluminum to heat is different from that of steel, in order to avoid damaging the live rail, the both sides of the live rail must be bolted tightly by aluminum bars. Fortunately, there is really no shortage of aluminum here, so this problem is solved smoothly.

Others, that's not a problem.

The operating system of the subway itself does not need to be considered, because he currently has only one subway plan, so he just needs to keep going.

The last and most important issue is the vehicle issue.

This is the real trouble. For Ankai, subway vehicles are more troublesome than tunnels, rails, power and systems combined, because subway trains are larger and more professional vehicles than ordinary vehicles. Therefore, it is absolutely not enough to have a level 5 engineer alone, and other skills are needed to support it. This inevitably has a certain conflict with Ankai's current skill addition plan. If this is added first, then the plan to strengthen oneself must be released later.

Conversely, the development of the subway will take longer.

Materials are of course important, but An Kai should also appropriately improve his personal strength. Both are important, so he is now more difficult to make a choice on this.

As for the material of the vehicle, it is a problem, not a problem. The material is definitely not enough, and we have to save, but the main material is still aluminum, which makes An Kai feel a lot relaxed.

Still the same sentence, but other materials, only aluminum, he really does not lack.

The output of aluminum may not be considered high, but the place he needs to use at present is still too few. A large amount of aluminum ore has accumulated. The aluminum ore in the material warehouse alone is more than iron ore and coal mines combined. In the case of the subway, it is definitely not enough. But judging from the ratio of the three types of minerals, as long as the number of mines is increased, it is not difficult to replenish them.

The subway construction plan was put on the agenda by An Kai. After he completed the construction of the fifth floor and completed all the equipment layout, the next step was the determination of the direction and the construction of the subway station.

And in this process, they will also complete the first transaction with the Herto survivors in exchange for the various materials they need.

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