Ouyang Ping also asked puzzledly: "Chief, you don't know?" Then, he explained, "After I broke up with you in Wuyang City, I was immediately picked up by his superiors in a helicopter to the South China Sea Fleet. There, I reported in detail the situation on the Night Pearl Island according to the orders of my superiors, who ordered me to be the leader of the geological exploration team of the Night Pearl Island, responsible for leading a diving team to the Night Pearl Island to investigate the relevant situation of the cave.

We set off the next day, worked there for eight days, and finally figured out something about the cave. I was entrusted by the organization to report to the chief on the situation of the Night Pearl Island, especially the caves. ”

When Guo Zhuocheng heard that he was arranged by the organization, he knew that this matter had attracted the attention of the high-level and that the higher-ups had directly intervened in this matter. He couldn't help but be happy in his heart, and then said, "You drink some water first, rest for a while, and then you report back to me." ”

As he spoke, he quickly cleaned up the confidential documents on the table, poured a glass of cold boiled water for Ouyang Ping with his own hands, and said as he walked towards the reception area: "Your actions didn't attract the attention of others, did they?" ”

Ouyang Ping poured a few mouthfuls of water, wiped his mouth, and hurriedly said, "Report to the chief, absolutely not." When we set off from the South China Sea Fleet base, we were in a helicopter, and when we reached the east of Philippine waters, our helicopter landed on a large cargo ship, and after traveling hundreds of nautical miles, we quietly changed into a submarine at night.

When the submarine approached the Night Pearl Island, we got out of the submarine's torpedo tube and dived to the island. Not to mention that no one else knows, even the island keeper named Romoso doesn't know. We left two special operations soldiers guarding that entrance. Romoso, who was guarding the island, never came. ”

Guo Shucheng's question was just a string that made Ouyang Ping's heart tense forever and kept secret, not really worried that they would leak the news.

Wait for Guo Zhuocheng to sit down on the sofa. Ouyang Ping put the briefcase in his hand on the wide, low coffee table, then took out a stack of materials from the bag and handed it to Guo Zhuocheng, while spreading a map on the coffee table in front of Guo Zhuocheng.

Guo Shucheng put the information on his lap, looked at the map, and asked, "Is it expensive to renovate the cave?" Are caves really of great use for our country? ”

Ouyang Ping suppressed his excitement and said, "The cave is very useful. One of the soldiers who accompanied me on the island was a staff officer of the submarine force, and he was very excited that we had such a place, and said that we would build it even if we were bankrupt. Build a relay station for submarines. The caverns are made of dense granite, which is so strong that it can withstand the direct bombardment of any conventional bomb, as long as it is not a megaton nuclear bomb. ”

Guo Shucheng smiled and said, "Hehe, you people will only start from your own position. It's going to be bankrupt. Is there a submarine base with a fart? If you do this, it may be counterproductive, and it is better to make it purely civilian, and let it become a rest and supply base for our Chinese fishermen, and use fishing boats to explore the western Pacific Ocean clearly. ”

Because of the blockade of the island chain by the United States and Japan, coupled with Taiwan's hostility. The navy of the mainland can only be regarded as a coastal navy, and it is difficult to enter the western Pacific Ocean at its doorstep, and it knows very little about the water level and seabed conditions in the western Pacific Ocean, and even less about the central Pacific Ocean and the eastern Pacific Ocean near the United States, and only knows a few open commercial waterways. If you use this island as a base. A large number of fishing boats were dispatched to obtain seafood and at the same time to find out the underwater conditions in the western and central Pacific Ocean. It can also gradually grasp the climatic laws of the Pacific Ocean, and the development of China's navy is also immeasurable.

Ouyang Ping hurriedly said: "That's not good, chief, your request is too low." Fishing boats can be scouted, our submarines have to go out, and we can't be pressed by the United States and can't even straighten our waists. ”

Guo Zhuocheng didn't debate with Ouyang Ping again, he looked at the drawings on the coffee table and said, "You can introduce it to me, what is the situation." ”

Ouyang Ping replied, "Okay." ”

Then, he said seriously: We have been exploring here for more than a week, using laser ranging and other methods, and with the help of underwater machines, we have basically found out the situation of this cave. The entire area of this cave is about 1.1 square kilometer, of which the sea area is 0.5 square kilometers and the surrounding land area is 0.6 square kilometers. The cave is an irregular oval, about 1.2 kilometers long and about 1 kilometer wide. The top of the cave is 52 meters above the water with an average of 37 meters, and the deepest water is 410 meters, with an average of 210 meters.

There are only two openings in the entire cave that lead to the outside. One of the holes was on land, and the exit was westward, which was the passage we had last entered. A cave is under the water's surface, and the passage is on average two hundred and thirty meters deep, and the exit direction is to the east, almost in a straight line with the cave on land. Two openings, one on the water, one under the water, to the west and one to the east. The length of the passage on land is about 1,270 meters, and the length of the underwater passage is about 1,420 meters. The central axis of the cave does not coincide with the central axis of the entire mountain.

The exit of the underwater cave is directly facing a trench in the Pacific Ocean, and a few hundred meters further in the direction of the cave is a trench with an average depth of more than 1,000 meters, which is very conducive to our submarine navigation, and the mountains around the cave are full of cliffs. It can be said that as long as this hole can be entered by submarines, it is definitely a good submarine cave. It is like a cave on the side of a mountain on the land where you can hide and hide.

But this underwater passage is the same as the land passage, both the direction and the shape of the passage are very irregular, the large place can be used as an exhibition hall, and there is no problem with running a few large trucks, but the narrow place can only accommodate two or three people to pass through guò. The passage is curved and curved, and the turning radius is very small, not only bending left and right, but also undulating up and down. Without a major transformation, it is absolutely impossible for a submarine more than 100 meters long to get through guò, and even a diving tank more than 10 meters long is difficult to walk in it.

There were two major tasks to be done to build this large cave into a submarine cavern: the first was to blast the underwater stones to make the bottom of the sea as flat as possible, especially those standing near the entrance of the cave had to be removed. The second is the dredging and transformation of the underwater channel, the channel must be straightened, and the narrow place must be widened. If it is not very difficult to blast the stones under the water, then it is very difficult to dredge and renovate the underwater passage, and it is definitely not easier than digging a tunnel several hundred meters deep on land.

Ouyang Ping pointed to the narrowest part of the underwater passage and continued: "We think that if we block this place, and then use a pumping machine to drain the seawater in the cave, then we can do anything inside." Not only can you dredge the passage and level the bottom of the pond, but you can also expand the land in the cave a lot. After the water is drained, the underwater project suddenly becomes a land project, which is more than ten times faster than the underwater project, and the cost is low and safe. ”

Guo Zhuocheng asked, "Is this possible?" 1.6 square kilometers is 1.6 million square meters of water surface, and the depth is more than 200 meters. With so much water to be discharged, how to solve the electricity used by the drainage pump? ”

Ouyang Ping was stunned for a moment, he really hadn't thought about these things carefully when he was in charge of surveying the terrain and landforms, and Guo Shucheng's question stumped this naval diving instructor. After thinking for a while, he had to explain stubbornly: "The amount of water that needs to be discharged is indeed very large, but you are not as large as you say, because the underwater terrain is sloped, and the deeper the water, the smaller the area of the pool. When the water reaches a depth of 110 meters, the area is reduced to only a quarter of its original size. We have made preliminary calculations that the sea water in the entire cave is about 30 million cubic meters.

I think...... If we use water pumps, ten pumps with a flow rate of 2,000 cubic meters per hour and a head of 100 meters, it will take about two months to pump. As for electricity, it can only be solved by the wind power plant built on the island. It is best to start the construction of the power station now, so that the construction period is not delayed. ”

Guo Zhuocheng calculated a little in his heart, and asked rhetorically: "Do you know how much power a pump with an hourly flow rate of 2,000 cubic meters and a head of 100 meters is?" At least seven hundred and fifty kilowatts! Now the power of wind turbines with mature technology is generally less than 40 kilowatts, in order to meet your one pump, we need to build 20 such wind turbines, if you want to meet your ten pumps, you need to build 200 motors, not to mention how much it costs to build 200 wind turbines, you can say that there are so many towers on the mountain? There are pumps with such a large flow, and there are larger ones, and such a high head is normal, but how do you move such a large pump into a cave? ”

Since buying this island, Guo Zhuocheng has considered the power problem on the island, and now he can naturally say one, two, or three when he opens his mouth, which is much more professional than Ouyang Ping, who seems to be concentrating on doing this.

Ouyang Ping naturally didn't know that Guo Zhuocheng had been caring about this matter, and after listening to Guo Zhuocheng's words, he felt very ashamed in his heart.

Guo Zhuocheng saw the look on Ouyang Ping's face, he lowered his head and carefully studied the drawings, and suddenly said, "Maybe we don't need such a high-power water pump." ”

Ouyang Ping said: "If we don't use high-power pumps, our construction period will be very long. ”

Guo Zhuocheng's finger drew along the contour line on the map and said, "Is this a submarine ridge?" Is it possible to divide this large pool into two parts? ”

Ouyang Ping hurriedly replied, "Yes." Not only here, but also here is an underwater ridge, almost perpendicular to this underwater ridge, rising like an irregular cross. They divide the whole pool into four irregular parts, but the ridge of this place is low, so the whole pool can be considered to be composed of three parts. ”

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