Following this, the inertial confinement reactor would undergo a trial operation for one to two months. After ensuring that there were no issues, the reactor would officially take over the power system of the Spire Experimental Base, turning the underground base into a self-sufficient shelter.
On the side of the Spire Experimental Base near the sea, according to the original design, an L-shaped inland port was excavated and molded with reinforced concrete.
Extending out from the port was an underwater tunnel about a kilometer long. As it had not been connected to the ocean outside, there was no seawater in the tunnel.
In this tunnel, Chen Chen designed a total of three gates, A, B, and C, just like the floodgates of a reservoir. This way, even if the Spire Experimental Base was connected to the ocean outside, there would be no backflow of seawater.
If an ocean submarine wanted to enter the Spire Experimental Base through the tunnel, it only needed to open the first gate and let the submarine in before closing the gate. After that, the second and third gates would be opened.
As for the submarine, Chen Chen naturally would not order behemoths like the "Kilo" or "Lada". The reason was simple.
First, the size of the submarine was too large and Chen Chen's port could not accommodate it.
Second, although this submarine was not a nuclear submarine, it was still a weapon of mass destruction in conventional military force. If Chen Chen ordered it, it would only attract the attention of the continents. After all, the power of this weapon of mass destruction was not comparable to ordinary armored vehicles or armed helicopters.
Third, because of the complexity of the military-grade submarine, it could not dive too deep into the sea. The maximum depth of the Kilo-class submarine was 300 meters, the maximum depth of the Lada-class submarine was 400 meters, and some double-hulled nuclear submarines could only dive to a depth of 500 meters.
Chen Chen's Spire Experimental Base was located 723 meters below sea level.
Therefore, Chen Chen only had Little X conceal his identity and ordered a number of private submarines around the world. These submarines included the exploration type and the sightseeing type, most of them were miniature submarines that could carry three to five people.
Unlike the military-grade submarines, the exploration type submarines were small enough and did not have any requirements in terms of weapons or endurance. Therefore, this type of submarine could dive to a depth of seven to eight hundred meters. The sightseeing submarine that Chen Chen purchased could reach a depth of a kilometer.
This sightseeing submarine was a miniature submarine that was five meters long and three meters wide. Unlike other submarines, this submarine was U-shaped, like a huge pincer, and in the center of the U-shaped fuselage was a spherical cockpit.
The spherical cockpit was almost entirely made of tempered glass, which could effectively disperse the pressure of the seawater. The interior was divided into three seats in a triangular shape. Sitting inside the sphere, one could see a 360-degree panoramic view. It could be said to be a must-have for tycoons.
This type of sightseeing submarine was even more expensive, costing 1.8 million USD per unit.
These submarines had been placed on standby on the Blacklight. Meanwhile, at the Spire Experimental Base, after nearly a year of implementation, the port project was finally coming to an end today.
At this time, the construction of the passage to the outside world had been completed. It was a circular passage that was 1,200 meters long and ten meters in diameter. It extended from the cave of the Spire Experimental Base all the way to the end of the rock wall near the ocean.
In the passageway, three giant gates had already been installed. The furthest gate was located at the end of the passageway, only a few meters away from the seawater outside.
"The next step is very simple. We just need to use explosives to blow up the outermost rock wall and open up the passage. That way, we can have an additional passage in and out of the experimental base."
After listening to Little X's explanation, Chen Chen, who had just walked out of the inertial confinement power station, once again came to the port construction site. He looked at the square pier that covered an area of about 100 square meters and was 30 meters deep, as well as the incomparably deep tunnel under the pier. He could not help asking, "Once the Spire is connected to the sea, how do we disguise the entrance? An extra gate on the dark rock wall should be very conspicuous. "
"There's no need to worry about that."
Little X replied, "On the other side of the passage, which is the part of the ocean rock wall, I've already asked the Black Knights to pilot the submarine and cut off the outermost shell of the rock wall. This outer wall can be used as a camouflage layer for gate A. In this way, no one will be able to discover the passage unless the gate is opened."
"Not bad."
Chen Chen nodded. "Then let's open it now."
"Yes."
As Little X carried out the order, Chen Chen saw that under the deep pit of the port, at the exit of the passage, a giant gate up to three or four meters thick slowly descended, completely sealing off the passage.
A large "C" was written on this gate.
At the same time, the artificial intelligence X-111 of the Spire Experimental Base also issued a warning to the entire laboratory at this time. "Warning, within ten minutes, the air pressure in the Spire Experimental Base may be disrupted. All personnel are advised to remain awake to prevent damage to the middle ear canal due to deep sleep...
"Five-second countdown begins: five, four, three, two, one!"
"Rumble..."
There was a subtle explosion. Chen Chen only felt a slight tremor under his feet, and then, a vibration of a special frequency approached from a distance bit by bit.
"The rock wall layer has been blasted, seawater has poured in, filling the gap between gate A and gate B...
"The space between gate A and gate B has been filled with seawater, beginning to close gate A...
"Gate A has been closed, gate B is opening...
"Gate B has been fully opened!"
Following Little X's reminder, the vibration came closer. The violent vibration passed through the rock and gate C under Chen Chen's feet, transmitting into the entire Spire cavern.
Obviously, the seawater had surged outside gate C.
However, Little X did not directly open gate C, but repeated the previous operation again.
"Close gate B... Gate B has been closed, open gate A again...
"Close gate A, open gate B..."
By repeating this method many times, the entire passage was finally filled with seawater. At this time, Little X closed gate A again and reminded, "Sir Godfather, I'm ready to open gate C."
"Open it."
Chen Chen nodded, having no intention of leaving.
Therefore, under Chen Chen's gaze, the huge and heavy gate under his feet finally let out a low wail, and then with a rumble, a small gap opened.
At once, a thin layer of water rushed in through the gap. Chen Chen, who stood by the port, only smelled a fishy smell of the sea.
Following that, the gate slowly rose, and more and more seawater poured in. All Chen Chen heard was a deafening roar in his ears. The port was rapidly filled by seawater in the passage!
It was not until the water level of the port rose close to the position of Chen Chen's feet that the influx of seawater stopped completely. Then, gate C underwater was closed again, sealing off the passage.
At this point, the construction of an artificial inland port was completed.
Next, they only needed to park the mini submarines they bought here and they could enter and exit the port at will. They did not have to enter from the various entrances and platforms of the Eco Science City every time.
Moreover, the underwater passage was equipped with a water pump, which meant that if necessary, the seawater in the passage and the port could be pumped out again.
Of course, the port entrance was certainly not as convenient as the elevator in the Eco Science City, but the opening of the port meant that the Spire Experimental Base now had a more covert escape route.
In the future, if Chen Chen were to screw up or if the research base was exposed and the military surrounded Chen Chen's Eco Science City, Chen Chen could use the ocean route to escape.
After all, where there's life, there's hope. A cunning rabbit has three burrows. Although Chen Chen was confident that he would never reach that point, there was nothing wrong with leaving a way out.
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