Into Unscientific

on the clearing.

Looking at the detection results of the gravity gradiometer around him.

Zhang Ziang's expression couldn't help being a little subtle.

yes

How could I forget this?

indeed.

For the surveying and mapping results of ordinary gravity remote sensing, it is undoubtedly a very difficult thing to leave the tomb passage and dig another pit to enter the tomb.

After all, the results of microgravity remote sensing detection are very vague, and only the general orientation and structure of the tomb can be determined.

A very representative example in this regard is the famous Zhaoling Mausoleum.

Zhaoling Mausoleum is the joint burial mausoleum of Tang Taizong Li Shimin and Empress Wende's eldest grandson. It is located on the main peak of Jiuyi Mountain, Yanxia Town, Liquan County, XY City.

From the mastery of microgravity remote sensing technology in China to the present, the archaeological community has conducted no less than ten technical explorations on the earth.

The most recent one was at the end of 2021, when the detection team used active sources for seismic data acquisition.

At that time, the survey team laid out seismic data collection lines along the mountain, and used seismic reflection and tomographic imaging to describe the shape of the Zhaoling tomb in detail.

Then use gravity and magnetism to measure the width and height of the entrance of the underground palace, and then use ground radar and high-density resistance measurement to measure the extension length of the underground palace tomb passage.

Finally, check whether there are niches, side rooms, etc. after the tomb passage extends in.

But even with such a detailed exploration, only one conclusion can be drawn in the end:

The cemetery is intact.

That's right.

Just four simple words.

At most, I will add a sentence for you that there are no robbery holes on the mountains on both sides of the entrance to the tomb.

As for the deeper tomb structure.

Sorry, apart from confirming the location of the No. 1 stone chamber, the main cemetery palace does not have any detailed measurement results—not for the sake of keeping it secret, but because it cannot be detected.

In a sense.

The images drawn by microgravity remote sensing are actually somewhat similar to the shadows of fish underwater.

That is to say, the general outline can be distinguished, but the specific internal structure is very difficult, and the internal organs cannot be recovered.

in this case.

If you dig a hole at will, if it is not kept properly, a certain supporting structure will be damaged by mistake, causing the entire underground palace to collapse.

Or the breach exceeded expectations, resulting in serious weathering and damage to the cultural relics inside.

In addition, the Yongling Underground Palace will inevitably be used as a scenic spot similar to Dingling in the future. The entire building can only be excavated for protection and cannot be destroyed by mindless violence.

Therefore, from the very beginning, Zhang Ziang subconsciously applied his previous concepts.

But now after Xu Yun made such a mention, he only reacted

This time they are not using traditional microgravity detection equipment, but Temiao is a gravity gradiometer!

The test result of this thing is another concept.

As long as you can find a suitable location, you can dig a robbery hole. Ahem, dig an artificial tunnel down.

Think here.

Zhang Ziang quickly cast an apologetic look at the crowd, turned around and operated the picture board by himself.

Then soon.

A structural diagram appeared on the screen.

Then Zhang Ziang drew a vertical line above the apse with a stylus, but quickly shook his head:

"It's easy to find the location to break into, but you can't dig a hole directly when you operate it. What should I do?"

Weng Tong at the side glanced at him, changed his sitting position on the chair, and asked:

"Old Zhang, what's the situation? Why can't we just dig a hole?"

Zhang Ziang frowned and remained silent for a moment, then gestured on the screen and said:

"The first is the problem of the soil layer of Yongling. Didn't I say it before? The soil here in Yongling is a saturated and weak soil layer, with a void ratio of about 1.3 and an undrained shear resistance of 22.45KPa."

"This is a standard lagoon-facies soil formed in the late Quaternary period. There will also be carbonate accumulation in the soil layer, which is not stable overall."

"If holes are dug randomly, there may be a risk of collapse similar to that of the tomb passage."

"And that's it."

Zhang Ziang paused after speaking.

Draw a circle on the bronze underground palace under the Jiudian underground palace, focusing on the previous point:

"Look, if we just drill holes directly above the underground palace of the Nine Palaces, what should we do with the copper underground palace?"

"If the protective layer of the copper underground palace is only copper, it's okay to talk about it. If we have enough plans, we are fully capable of cutting a small opening and moving out the "Yongle Dadian" inside."

"But don't forget, the inner layer of the copper underground palace is covered with golden nanmu."

Everyone was stunned for a moment, and then reacted one after another.

right.

If it's just a pure copper dungeon, then the operation can be really simple:

The project team can break into the Jiudian underground palace first, then dig six meters down, and then cut a small hole out of the copper underground palace.

Then enter the interior through equipment or personnel, and just move out the box containing "Yongle Dadian".

But the problem at hand is.

In addition to the copper shell on the outer layer of the copper underground palace, there is also a golden silk nanmu that is highly suspected of being a dragon scale pattern in the inner layer.

This volume of nanmu structure can be called a unique copy in the world, and it is a very precious cultural relic in itself.

If you cut a hole in it.

Firstly, it is easy to damage the integrity, and secondly, with the influx of air, it is easy to say that the "Yongle Dadian" is protected by a metal box, but the rest of the golden nanmu inside may be in danger of weathering.

Think here.

Jiang Chenggu also realized the seriousness of the problem and couldn't help looking up at Zhang Ziang, asking:

"Then Academician Zhang, what do you think?"

Zhang Ziang pondered for a moment, but did not directly give an answer.

Instead, he picked up a pen and drew a simple diagram on the picture board:

"Director Jiang, Academician Pan, let's take a look."

"From a top view, the entire Yongling Underground Palace looks more like a lying person than a [A] character with a horizontal line below it."

"The apse is the head, the left and right side halls are the two hands, the aisle is the bones of the shoulders, the nave front hall and the tunnel form the chest and lower body."

When Jiang Chenggu saw this, although he didn't understand what Zhang Ziang wanted to express, he nodded in cooperation.

Objectively speaking, the layout of Yongling is indeed quite personal.

Then Zhang Ziang patted the back of his head with his palm, and gestured:

"The location of the copper underground palace is located under the apse, just like a pillow for a lying person."

"If you want to take out the pillow core, that is, "Yongle Dadian" when you can't break the pillow, the more common method is of course to pull the pillow out from under the person's head."

"But the problem is that when the pillow is empty, there is no support for the head, and the head can easily hit the mattress below—you can imagine this picture for yourself."

this time.

More people nodded.

After all, this example is closer to life.

Then Xu Yun's gaze stayed on Jiang Chenggu's palm patting the back of his head for a while, and thoughtfully said:

"Academician Zhang, I understand."

"So you mean we can't smoke the pillow too fast, it's better to put a substitute under the 'head'?"

Xu Yun thought that he had understood what Zhang Ziang wanted to express, but Zhang Ziang shook his head vigorously after hearing the words:

"Dr. Xu, you understand a der cough cough, you misunderstood."

"What I'm trying to say is actually"

"We can try to cut off the head, fill the pillow with soil after the pillow is taken out, and then sew the head back on."

Xu Yun:

"?????"

Actually.

At this time, Xu Yun was not the only one with a confused face.

Including Jiang Chenggu, Academician Pan, Weng Tong, Huang Yuting and others, everyone's expressions were surprisingly consistent:

Boss, what are you talking about?

However, Zhang Ziang was not surprised by everyone's reaction. He smiled very calmly and continued to explain:

"Everyone, my idea may sound a bit wild, but I personally think it is actually very practical."

"First of all, it is the sentence above. If you want to protect the golden nanmu inside from accidents, the most appropriate way is to move the pillow, that is, the copper underground palace, to the ground for disposal."

"But whether it is directly 'pumping' or moving with your head, it is very difficult to actually operate."

"This is especially the case when the soil around the copper underground palace has been infiltrated by stagnant water. The principle of the subway does not apply to the current situation."

"So in this case, can we dig out the head of the apse first, and then lift the pillow to the ground?"

"Right now we have fine-grained results from gravity gradiometers, and I personally think it's a perfectly viable option."

After listening to Zhang Ziang's words.

The scene suddenly fell into silence.

Everyone was turning their heads rapidly, thinking about the feasibility of Zhang Ziang's plan.

Strange to say.

It's obviously an outrageous plan, but the more Xu Yun thinks about it, the more likely it is to be realized.

Zhang Ziang has already mentioned the reason for "cutting the head", and Xu Yun agrees with this aspect - in terms of the current soil structure, it is almost impossible to go beyond the apse to dig the copper hall.

Therefore, his main consideration is whether the scheme has the corresponding operating conditions.

The first is the volume of the apse.

According to the surveying and mapping results, the volume of the apse is not large.

It covers an area of ​​about 75 square meters and is a rectangle with a size of 5X15.

Its height is in the early five meters, that is, its volume is about 370 cubic meters, which is quite satisfactory in terms of data.

The second is the layout of the apse.

Mentioned earlier.

There are not many funeral objects in the apse, only the coffins of Jiajing and the three empresses inside.

Other than that.

There are no other large artifacts in the apse.

After all, it is the area where the emperor's coffin is stored, so it is impossible to store many funeral objects—the funeral objects are all placed in the other halls.

The same is true for the apse of Dingling.

Except for the coffins of Emperor Wanli and the two empresses, there are no other items in the apse of Dingling Mausoleum. Now Dingling is also a scenic spot open to the public, and only the duplicated coffins of the emperor are stored in the apse.

More than 3,000 pieces of cultural relics have been unearthed before and after Dingling, only eleven of which were found in the apse, and this number also includes many lamps.

At the same time, take the apse of Dingling as an example.

The interior decoration of the apse of the Dingling Mausoleum is extremely monotonous. The whole body is made of gray and white marble, and there are few stone carvings on the walls.

To put it bluntly.

Except for a few coffins, there are few particularly precious cultural relics in the entire apse.

Not to mention that there is a thick layer of 'cervical vertebra' between the apse and the aisle in front. That is, the gate of the apse.

Displayed according to the detection results.

The thickness of the gate of the apse is close to one meter, and it is fully enclosed.

That is to say, as long as the technique of cutting the head is exquisite enough, there is no need to worry that the other eight small halls will be affected, which is as smooth as the experience of Louis XVI back then.

So in terms of conditions, the apse is fully in line with the requirements.

Then Xu Yun picked up the mineral water and took a sip. After moistening his throat, he asked Zhang Ziang:

"Academician Zhang, I personally have no objection to the excavation conditions, but I would like to ask for advice"

"After all, the apse is located at a depth of nearly 30 meters underground. Is it technically feasible to completely cut it from the main body of the underground palace and move it to the ground?"

"Or do you mean that your idea is to divide the apse into several parts and transport them to the ground, so that they can be spliced ​​and restored?"

I heard this.

Weng Tong and the others also turned their attention to Zhang Ziang, waiting for his answer.

Mentioned earlier.

The depth of the underground palace is 27 meters underground. Counting the "thickness" of the apse itself, the excavation depth actually exceeds 30 meters.

This depth is almost equivalent to a ten-story building in an ordinary residential area, and the technical requirements are obviously very high.

"Technically"

Zhang Ziang repeated the word, with a strange smile on the corner of his mouth:

"Dr. Xu, you can take out your phone and search for a keyword called 'Yujiapu Station Depth'."

"After reading the search results of this keyword, I think you won't have too much doubt."

Xu Yun couldn't help being taken aback.

Then he took out his mobile phone and entered the entry according to what Zhang Ziang said.

After a while.

A huge title appeared in front of Xu Yun:

【The largest and deepest underground high-speed rail station in the world, the first "shell" building in China.】

at the same time.

Zhang Ziang's voice also rang in Xu Yun's ear:

"Yujiapu Station. Oh, it seems to be renamed Binhai Station now, and it is a standard deep-ground commercial building."

"Its deepest depth is 60 meters, and the foundation pit of the intercity station platform of the hub project is 25 meters deep, and many of the underground diaphragm walls used in the construction were poured and then hung down."

"In addition, during the construction process, the China Railway Construction Engineering team encountered many huge stones during the construction process, the largest of which reached 14.2 meters in length from head to tail."

"However, the China Railway Construction Engineering Co., Ltd., who was in charge of the construction, did not blow it up after discussion, but transported the entire stone from a depth of 45 meters to the ground."

"The length, width, and weight of this stone far exceed the corresponding data of the apse. Such a heavy stone can be carried out, let alone an apse?"

"Similarly, there is the world's largest stone dragon in Jiangyao Village, HD City. It is buried 15 meters underground and has a length of 369 meters. It was unearthed in 2002."

"At that time, CCTV's "Into Science" wanted to find the source of Shilong, and filmed seven episodes of feature films for this purpose-finally came up with two guesses, either man-made or naturally formed."

"Of course, the actual operation is definitely not as easy as it sounds. Strict calculations are required in terms of torque and load-carrying capacity, otherwise accidents are easy to happen-there are not many videos of tow trucks overturning during operation on the Internet, those Basically it's all about torque."

Looking at the eloquent Zhang Ziang, Xu Yun couldn't help being a little surprised.

Is the current civil engineering brother actually so awesome?

He thought that a building of the size of the apse could only be dismantled into small pieces and moved out.

Then another moment passed.

Jiang Chenggu also raised his head to look at Zhang Ziang:

"Academician Zhang, how sure are you of this plan?"

Zhang Ziang scratched his head and thought about it:

"The most difficult part of the whole process is the calculation of the torque of the lifting equipment. Others are trivial matters."

"The specific plan still needs to be discussed, but I am quite confident in the success rate - if you insist on a higher number, be conservative, 9.95%."

Jiang Chenggu:

".?"

9.95% is still called conservative?

You sell second-hand mobile phones here.

But Jiang Chenggu didn't spit out this trough, he thought for a moment, then looked up at Zhang Ziang again:

"Okay, since that's the case. Academician Zhang, you guys should come up with a plan as soon as possible, and I'll submit it to the superiors for demonstration."

"We have a special channel for this project. If there is no problem with the plan, the results should be available soon."