【Basic concept:】

0~50 meters underground.For underground rail transit, pipe network system and refuge facilities.

50 to 100 meters underground.Underground livable cities.The main strata of human life.

100^500 meters underground.Underground agriculture, underground medicine and underground ecosphere, and strategic resource reserves.

500-2000 meters underground is the storage and utilization area for underground energy circulation belt, underground pumped water storage, compressed air power station, and underground thermal energy.

More than 2000 meters underground are deep-earth science laboratories and liquefaction mining of deep-earth solid resources.

【Underground engineering construction technology:】

Unsupported foundation pit engineering.

Construction of deep foundation pit engineering.

Caisson construction.

Shield method tunnel construction.

Pipe jacking construction.

Immersed tube construction.

Box culvert construction.

mine law.

Temple Temple..

【Preparation of ultra-low temperature equipment】

Drilling rigs, rock grabbing machines, mining rigs, differential machines...

Xu Qiu was dazzled.

This drawing, as many as 130 pages,

It introduces in detail the application types of each stratum and the technologies needed to build dungeons.

And the most important thing is ultra-low temperature equipment!

After the sun goes out, the earth loses the supplement of the sun's thermal energy. To maintain the heat balance, it can only rely on the independent heat production inside the earth, such as the emission of energy in the earth's core and the heat production of radioactive radiation.After a few months, the temperature on the surface of the earth will drop to two hundred degrees below zero, which is a super low temperature that living things cannot survive!

And at such a low temperature, almost no machines can operate...

The role of the dungeon is to resist extreme low temperatures, so it is necessary to design mechanical equipment that can operate at ultra-low temperatures!

Take the engine as an analogy. Generally speaking, the lowest starting speed that the engine can start at a certain temperature indicates the starting performance at that temperature.

The lowest temperature at which the engine can start represents its low-temperature start performance.

The starting performance of the machine is mainly related to the type of engine, the design of the combustion chamber, and the level of technology.

The low-temperature startability is also related to the viscosity of the engine lubricating oil, the evaporation of gasoline or fuel oil, the low-temperature fluidity of diesel oil, and the working force of the battery.

The operating temperature of most equipment is set between minus four degrees and fifty or sixty degrees.

Low-temperature equipment can drop to minus sixty or seventy degrees.

But if you want to keep the machine running at minus [-] degrees, and ensure the viscosity balance between the engine crankshaft rotation resistance torque and the starting speed at ultra-low temperature, it is almost impossible for existing machinery to do this!Then, the only way out is to develop a new type of mechanical equipment specially designed for the low temperature of minus two hundred degrees.

In a short period of time, it is very difficult to transform all kinds of construction equipment, the maintenance system after the completion of the underground city, the energy utilization system, the surface snow extraction system, and the pipeline transportation network into ultra-low temperature equipment. difficulty.

but.…

Xu Qiu flipped through the last few dozen pages of the construction drawings.

It records densely and meticulously the modification methods and design ideas of various ultra-low temperature equipment!

It seems that now Xu Qiu can not only completely hold the dominance of the dungeon construction in his hands,

The craftsmanship of various large-scale equipment transformation and design in the country will also be at the disposal of Xu Qiu!

"Old Zou, I do have a good idea for the dungeon!" Xu Qiu said in a deep voice after recovering.

Zou Botao is preparing for a meeting to discuss the final plan of the dungeon.

Hearing this sentence, a gleam of light flashed in his cloudy eyes, and he looked at Xu Qiu in surprise: "Director Xu, you...do you also have research on architectural design?"

"A little interested."

. . . Excellence! "

,Give me some time, tomorrow morning, I will write out the plan, if feasible, we will design the dungeon according to this plan! "

...Thank you, Director Xu, for the people! "

Zou Botao looked excited, and he bowed deeply with gratitude and respect.

Old and young Zou old if — / / /

"Bingqing, get me a pen and paper!"

Xu Qiu picked up a pen, facing the design blueprint in his mind, and engraved the content bit by bit.Pipeline layout, design, traffic routes, and emergency refuge facilities from zero to 50 meters underground..

As well as the current most important and core design of 100 to [-] meters underground,

Including the construction and layout of the underground livable city, the selection of building materials, the laying of the insulation layer, the continuous use of the insulation board, the insulation device of the fresh air purifier, the vacuum layer, etc. There are also 100 meters underground and 2000 meters underground. . . .

At the same time, he also wrote down the ultra-low temperature transformation plan for several important construction equipment.

He omitted the specific equipment debugging procedures, replacement of key components, and coordinated operation of the system.

These important information must remain in Xu Qiu's mind.

This is also the key to his continuous deepening of people's sense of trust and dependence on him!

That night, Li Bingqing didn't sleep either,

She kept guard outside the door, and came in quietly every two or three hours to change her tea.

Li Bingqing felt an indescribable sense of satisfaction whenever he saw the empty teacup beside Xu Qiu's table.

the other side

On the next day, at seven o'clock in the morning!

A decree was suddenly issued from the embassy of Berry Country! !

Ask for data!Ask for data!Ask for data!Thank you to the big brothers who voted for me monthly, is there any more? .

Chapter 36 is coming to Xu Qiu, let all the old gentlemen wait!

[Embassy of Raspberry Country: The current international situation is changing, please come back to China as soon as possible for scientists and scholars of Raspberry nationality. 】

Raspberry Country. Capitol Building.

Fran. President Teji and others are sitting around a round table, and everyone has very serious expressions.

Te outrageously raised a finger and said, "Longguo's whereabouts are too weird."The spies we sent in the past were all stopped ten kilometers away from the construction area of ​​Shuguang City in Sanjianghe City! "

"There seems to be a restricted area!"

The Minister of Defense said: "Well, we used satellites to survey over there, but the signals were all blocked. A lot of high-tech shielding equipment was installed over there!"

Vice President Harris smoked a cigar and said: "The news we have learned is that Longguo is recruiting a large number of scientists, geologists, and architects." "

"Combined with the news that they have previously solicited plans for the construction of the dungeon, I have reason to suspect that they are secretly building the dungeon!"

Unbelievable touched his chin, frowned and said: "Why? What is the purpose of building the dungeon?"

The director of the Land Bureau guessed: "There are too many purposes for building dungeons. First of all, one answer is to keep out the cold. At present, the global climate is rising steadily, and global warming is unstoppable."

"Therefore, the cold protection function of the dungeon can be temporarily ruled out."

"Secondly, develop the city area. The land resources of the Dragon Kingdom are very tight. There is a certain possibility to move some urban facilities underground to reduce the weight of the city. But if it's just that, their actions are a bit abnormal! "

"Third: Refuge. If the dungeon is deep enough, it can completely avoid the bombing of nuclear weapons... And this is already the last weapon with the most powerful lethality that current human technology can bring!!"

The outrageous eyes became cold.

"Dragon Kingdom wouldn't be so crazy!"

He knocked on the table angrily.

Dragon Kingdom is really hidden too deep.

Now big countries, including Berry Country, are always paying attention to the movements of Dragon Country, trying to analyze something, but they have found nothing!

Now, Berry Country can only follow suit.

Now that the Dragon Country is recruiting scientists, the Berry Country will also call back all their scientists and build a dungeon!

"Berry Country ordered its own country's scientists to return home?"

After Xu Qiu heard the news, his expression was a little surprised.

He said to Zou Botao: "It's just right, it also saves me the energy to expel these people. The construction of a super dungeon is of great importance. If it is not my ethnic group, its heart must be different!"

Zou Botao deeply agrees.

In the construction of the super dungeon, only people from the Dragon Kingdom can be used in every link!

"Old Zou, are they all here?" Xu Qiu asked.

He sorted out the sketches of the super dungeon planning and construction last night,

This sketch, placed anywhere in the world, can be regarded as shocking, and it is not an exaggeration to call it the eighth wonder of the world!

Li Bingqing pressed the briefcase tightly in his hand.

Inside, there is a hundred-page super dungeon construction plan.

This is something that cannot be measured in money.

The value of these one hundred pieces of paper is the rise and fall of a country, and the death or life of more than one billion, or even billions of people! !

Zou Baitao opened his mouth, suppressed the excitement in his expression, and said, "Everyone is here. Professor Huang Yuan, Academician Wang Jianmin and others all rushed over from Sanjianghe City overnight, just to see Director Xu. Dungeon Sketch!"

"Okay, let's go, we can't keep the old people waiting!"

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