Hearing Zhang Gong shout, Professor Chen looked at him with puzzled eyes and said, "Crazy, let's go down now?" ”

"Why, how long will we wait if we don't go down now? Why don't you go down and see for yourself? Let's go, it's just a little bit of work. ”

Professor Chen shook his head helplessly, he couldn't understand Lao Zhang very well: he was curious and playful, and he must have long wanted to go underwater to experience a real dive.

Professor Chen called Chen Zhijun and asked him to arrange a few more people to go into the water with underwater cameras and waterproof 3D imagers.

Chen Zhijun called five people to Professor Chen and said, "Dad, there are six people with me, two people are responsible for photography, two people are responsible for operating the 3D imager, and two people are responsible for lighting you, so is it okay?" ”

Professor Chen didn't pay attention to Chen Zhijun, but explained to a few of them in a serious tone: "After a while, when you go underwater, the person in charge of photography, you work hard to take all the details of the ancient tomb entrance and shoot it clearly, and then take pictures of the upper and lower left and right parts, and the three-dimensional imager scanning starts around the entrance of the ancient tomb, and then walks along the passage inside, where you can go, just see what kind of direction it is, don't stay underwater for too long, pay attention to your physical strength, safety first." ”

After saying that, the eight people checked their equipment and then put on and went into the water.

Under Situ Fang's guidance, they soon dived to the entrance of the ancient tomb. Under the illumination of the headlamp and underwater searchlight, Professor Chen looked at the tomb door from top to bottom, from left to right, and found nothing other than this stone door, and there could be no mechanism at all. The original small crack in the door has been almost completely encroached upon by underwater creatures and plants, and it is impossible to see that there is a crack in the door if you don't look closely. After Professor Chen turned around the top of the tomb door twice, he saw that he still found nothing, and gradually felt that his physical strength was exhausted, so he and Zhang Gong went up first, and the rest of the work could only be left to Zhijun and them to complete.

After returning, Professor Chen pondered the underwater discovery just now, and he judged that the door should have been pushed open from the outside to the inside, and it could not be opened through some mechanism. And the tomb door seems to have a slight slope, firmly closed by its own gravity. If this is the case, it will be much easier to open the tomb door, after all, under the buoyancy of the water, a lot of force can be saved.

After more than ten minutes, Chen Zhijun and the others came up from the water. After Professor Chen received the scanning results of the 3D imager, he looked at a few pictures and immediately understood that the passage of the tomb had been gradually extending from the water to the water, until it reached the back of the waterfall, which means that the main part of the main tomb was all above the water surface, and it was likely to be hidden behind the waterfall.

Professor Chen communicated this idea with Zheng Suo and Zhang Gong and came up with two plans: one is to keep it as it is, without any appearance damage, and enter through the underwater stone gate; Second, if it is difficult to enter underwater, then blow a hole directly into it from the side of the waterfall. In the end, at the insistence of Professor Chen, who adheres to the principle of non-destruction, he still chose the way of underwater entry.

Seeing that Situ Fang was almost resting, Professor Chen stepped forward and asked, "Situ, may I ask you, if the stone gate below weighs 4-5 tons, can there be a way to open it?" ”

Situ Fang thought for a while and replied: "It shouldn't be difficult, although it is said that things will become lighter under the action of water buoyancy, but it is definitely impossible to push them away by manpower, after all, people are also affected by buoyancy under water, but you can borrow hydraulic tongs and jacks and other tools to open the stone door." ”

"The jack is easy to find, but the hydraulic tongs are difficult, but I see that there is no fulcrum below, how to use the jack?"

"In fact, there is one of the easiest ways I don't know if it is feasible, I went down a few times and found that there are protruding places on both sides of the tomb door about two meters away, those two places can hang wire ropes or something, I think if you use two wire ropes to fix a chain hoist, and then the middle part of the chain block is facing the tomb door, in that part with a channel steel top on the door, through the two gourds at the same time tightened, then it will naturally form a force on the tomb door, as long as the door is opened a gap, then everything will be easy to do."

"What you say is theoretically possible, but it must be quite laborious to do it underwater, not as simple as it says."

"There is definitely difficulty, but it can be overcome, when you hang the hoist from the boat or something, fix it on the boat when you get to the position, don't put it down, let the gourd or something hang, it's much easier to do that, you just need to adjust the position and attitude."

"We can fulfill your request on one boat?"

"No, the width of this ship is limited, and adding another ship will ensure the deployment of various positions."

"Okay, you make a plan, I'll cooperate with you."

"The plan is what I just said, to two wire ropes with buckles braided at both ends, the length is about 5 meters, two chain hoists, 3 tons and 3 meters are the best, a channel steel about two meters long, the thickness of more than 10 should be enough, and then find a piece wider than this, 30 centimeters long, wrapped with rubber, cushioned in the middle of the tomb door and the channel steel as a buffer, so as not to destroy the door, and then arrange two two-ton jacks and some square pieces of iron, as long as the door is opened, immediately fill these iron blocks in the crack of the door."

"Well, okay, it's simple and doable, it's up to you! In this way, you are fully responsible for the underwater technical work, and what you need is told to me and Zheng, and we will cooperate. ”

"Okay, let's prepare these now, it should be possible to open the door easily."

"Do you still need a U-shaped baffle?"

"If the hydropower station can continue to shut down, it doesn't matter if it wants to, and there's no need to destroy the riverbed below."

"It's quite thoughtful, okay, you guys will rest for a while, and I'll coordinate what you need with Zheng Suo first."

Watching Situ Fang leave, Zheng asked, "Lao Chen, what is this person doing?" It's easy to say, don't brag, can he do it? ”

"Haha, don't worry, he is the guard of my gang, and he used to be the all-round champion of the whole army, and he is very reliable."

"Oh, what level of guard? Hehe, I'm curious about this guy now. ”

"The guard of the commander of a certain military region, the level is enough, right?"

"Hehe, don't ask, since we chose them to cooperate, then we should trust them for no reason, let's do it, they can give them whatever they want, it's all up to them underwater, we can't help anything."

"Well, these people are all from the army, and they are all special forces, they are alive and well on land, and they are also racing dragons underwater, let them do it!"

"Well, now that they've solved what they need, do you think you still need to install the U-shaped baffle for a while?"

"You can grasp this yourself, if you think it is easier to turn off the hydropower station, then don't move the large engineering ship, otherwise as Situ said, it will definitely destroy the riverbed and structure below."

"Then turn off the hydropower station, anyway, it won't generate much electricity a day, and the cost of using engineering ships is much lower economically."