Into Unscientific

"."

As the eyes of Weng Tong and Tong Huaijun shifted.

The gazes of the rest of the audience also quickly turned to Zhang Ziang who was at the side.

Then Jiang Chenggu pondered for a moment, and asked Zhang Ziang:

"Academician Zhang, do you have any suggestions for the excavation plan of Yongling Mausoleum?"

"."

Zhang Ziang opened his mouth as if he wanted to say something, but in the end he changed into a softer wry smile:

"Director Jiang, how come you are such a big shot in the office?"

"I haven't even touched the report of the gravity gradiometer yet. Without knowing the specific structure of the underground palace, how can I come up with specific suggestions."

talking.

Zhang Ziang sighed.

Jiang Chenggu:

"."

right.

What Zhang Ziang said sounds like

Makes sense?

Engineer Ma who had just picked up the wig at the side didn't know what to think of, and there was a trace of sympathetic pity on his face.

Computer and civil engineering, these two brothers and sisters are the industries that most often encounter strange parties.

People who play SLG games know that it takes time to build buildings, but those Party A always think that they can set up a project today and see the real thing tomorrow—or the kind that can go online tomorrow night.

after awhile.

Zhang Ziang glanced at the report in Xu Yun's hand, thought for a moment, and said to Jiang Chenggu:

"Director Jiang, how about this?"

"Dr. Xiao Xu first helped me import the measurement data of the gravity gradiometer into our system. Let's analyze and discuss on the spot to see if we can come up with a preliminary plan."

"Anyway, any of the two remote sensing mapping vehicles has the ability to serve as a command vehicle—this is one of their default functions in the field."

"In addition, if we encounter any problems during the discussion, we can also fly the gravity gradiometer to the sky for real-time inspection, saving time and effort."

Jiang Chenggu pondered for a moment, then nodded quickly:

"no problem."

Zhang Ziang's construction surveying team is full of staff today, and the equipment is also well prepared, and they do have the ability to conduct on-site analysis.

At the same time, don't look at the location of the Ming Tombs, which seems to be relatively remote, surrounded by mountains and dense forests, but after all, it is in the suburbs of Yanjing, so there is no need to worry about signal transmission.

So if you encounter some difficult problems, you can also remotely call the design institute for support.

More critically.

It is different from the early morning hours when the convoy departs.

At this time, it was approaching noon, which happened to be the peak node of Yanjing.

In addition, there is no limit to the number of vehicles in Yanjing on weekends, and the traffic jam is several times that of weekdays. Just now, Jiang Chenggu took the time to glance at his phone and found that today's traffic index tmd is already 8.3.

Jiang Chenggu reckoned that if he closed the team now, he might be able to have dinner in the game.

Therefore, instead of wasting time in traffic jams, it is better to have a plan discussion on the spot.

Although most of the people on the scene are not civil engineers.

But as the saying goes, three cobblers are worth one Zhuge Liang, so what useful advice can you come up with if you don't keep it all together?

So under the instruction of Jiang Chenggu.

Xu Yun quickly assisted Zhang Ziang to import the data into a system of the Engineering Academy.

At the same time, a remote sensing vehicle at the scene was also expanded to serve as a command vehicle.

ten minutes later.

The data import is complete.

at the same time.

A imaging panel was also placed in the open space—although the probability of the imaging panel being photographed by satellites and revealing secrets is very low, Zhang Ziang and others still added a privacy grating to it.

This kind of anti-peeping grating is different from the good and bad anti-peeping films on the market, and it is a real anti-peeping device:

It only allows light from the front and the right to pass through, that is, only people standing on the front and right of the picture plate can see the image, and it looks completely black from any other angle.

After a while.

Zhang Ziang got off the remote sensing vehicle, took a stack of documents to the right of the picture board, and said to everyone:

"Everyone, as you can see, the detection results of the gravity gradiometer have been imported. Now let me introduce the basic information of Yongling to you."

Everyone hastened to listen attentively.

Then Zhang Ziang took a deep breath, stretched out his hand and drew a circle on the top view area of ​​the picture board:

"First of all, after our detailed measurement, the exact width of the treasure city on the surface of Yongling Mausoleum is 237.5 meters, which is slightly shorter than the record of 81 feet. It should be damaged by weathering and flooding."

"However, the foundation of Baocheng is still very solid. The area of ​​the rammed earth foundation is as high as 40,000 square meters, which is roughly 200x200. The average thickness of the sand and gravel deep into the bottom layer is 2.31 meters."

"Under the rammed earth foundation, there is a hard foundation groove of about 1 meter, and a large amount of natural gravel."

I heard this.

Jiang Chenggu, Weng Tong, and Tong Huaijun, three archaeological officials and experts, subconsciously nodded in unison.

well known.

As one of the four ancient civilizations in the world.

Huaxia's architectural history is influenced by Chinese culture, and it can be said that it also runs through ancient and modern times and spreads outside the region.

There are a large number of complex rules and procedures in almost every link of every building.

For example, beams.

For example, eaves pillars.

another example

foundation.

The foundations of ancient Chinese buildings are so complex that a special course can even be set up for lectures.

For example, the foundation of a house is called the house foundation, and the foundation of a building such as Yongling is called the "taiji".

The four sides of the platform foundation are generally made of bricks and stones, most of which are filled with soil, and the surface is also covered with bricks and stones.

The higher the level of the building, the more prominent and taller the base.

Of course.

Some small households also like to use platform bases.

However, most of the platform foundations of ordinary families are made of mud, which is used to expand the lintel, which is the so-called local reputation +10.

So the lintel wood on this kind of clay platform is also called the base mud lintel.

The foundations of imperial mausoleums like Yongling Mausoleum are much more formal, and there are special requirements for how to build specific bases.

For example, the Song Dynasty compiled "Zao Fa Shi", and the Qing Dynasty compiled "Engineering Practice Rules", which introduced the foundation structure of the imperial mausoleum in detail.

In general.

The platform foundation of the imperial mausoleum will be equipped with irregular step stones one level at a time. Called "stomping".

Below the "stomp" is the foundation.

The material for this type of foundation is generally cohesive or sandy soil, and the rammed foundation and "stamping" form the so-called masonry structure.

Below the masonry structure is the natural stone foundation.

That is to say, using natural rock as the foundation groove to expand the load-bearing effect of the building is relatively much higher in technical strength, and it is also the most critical position of the foundation.

Now, from the structure of Yongling Tomb.

The design of this part of Yongling relatively completely followed the ancestral system of the Ming Dynasty, and did not suffer from Jiajing's "poisonous hands".

Then Weng Tong thought about it, let out a soft "hey", and said to Zhang Ziang:

"Old Zhang, if I remember correctly."

"It seems that the foundation structure of the Xiyanchi Jin tomb was also distributed in this way?"

Zhang Ziang nodded:

"That's right."

Perhaps it was due to the fact that there were still a few laymen at the scene.

After Zhang Ziang answered Weng Tong's question, he introduced to Academician Pan, Xu Yun and others:

"Academician Pan, the Xiyanchi Jin tombs mentioned by the old man refer to the two large tombs of the Jin Dynasty found under the former residence of Wang Xizhi on Xiyanchi Street in LY."

"Tomb No. 2 has been robbed and excavated in history, and there are few cultural relics unearthed."

"However, Tomb No. 1 is well preserved. More than 250 burial objects were unearthed in 2003, including seven national first-class cultural relics."

"Wang Xizhi?"

Hearing what Zhang Ziang said, Xu Yun frowned, and asked with some uncertainty:

"Academician Zhang, is the tomb you mentioned the Jin tomb whose owner is highly suspected to be Sima Jin?"

Zhang Ziang smiled slightly, affirming:

"Yes, that is the tomb."

Only then did Xu Yun understand.

Although he is not an expert in history, he has a good memory.

In 2016, the test results of the owner of the Jin tomb in Xiyanchi were once popularly searched, and it also sparked a debate about the so-called "orthodoxy" in China.

So Xu Yun did have a little impression of this matter.

The ins and outs of the whole thing are as follows:

At that time, the archaeological team found a total of five corpses in the two Jin tombs in Xiyanchi. Among them, the three tomb owners of the No. 1 tomb were all minors, and the No. 2 tomb contained two skeletons of a man and a woman.

Among them, the test results of male adults were published in the 2016 archaeological report "LY Xiyanchi Jin Tomb":

This person may be Sima Jin, the eldest son of Langya Wu King Sima Ni. After DNA testing, the chromosome belongs to the southern branch of C3-F3880+ F948+.

So at that time, the matter about paternal chromosomes was still hotly searched, and a group of people were arguing.

For example, the northern branch of the y-chromosome haplogroup N of the Ji and Zhou nobles, the southern branch of the C line of the Shang Dynasty, and so on.

And when Xu Yun recalled this incident, Academician Pan obviously thought more practically, and he asked Zhang Ziang:

"In this case, academician Zhang, does this mean that there are actually cases for reference in the excavation work of the foundation of Yongling Mausoleum?"

"The Jin tomb in Xiyanchi was excavated in 2003. At that time, the technical means were able to excavate the foundation smoothly. It should be easier for us now, right?"

Zhang Ziang nodded slightly, but the expression on his face was still serious:

"If you simply look at the foundation, that is, the interval three to four meters below the ground, there are indeed precedents for excavation experience."

"In other words, we have the ability to open up this area on the upper floor without causing large-scale damage to Baocheng, but..."

After Zhang Ziang finished speaking, he was silent for a moment, and then stretched out his hand again to swipe on the area of ​​the picture board:

"But according to the detection results of the gravity gradiometer, the tomb passage leading to the underground palace under the foundation has all collapsed at this time."

Academician Pan was taken aback for a moment:

"What? The tomb has collapsed?"

Zhang Ziang nodded with a heavy face, and sighed:

"Judging from the analysis results of the gradient shadow difference, it should be due to the loosening of the soil layer and the excessive influx of water during the flood period, which caused the entire tomb passage to collapse beyond the limit."

"This is something we did not expect. After all, we had no knowledge of the existence of the lower copper palace before. The pre-design of the entire soil layer was simulated according to the Dingling Underground Palace."

What Zhang Ziang said was really not an excuse.

Even Xu Yun, who knew that the "Yongle Canon" was stored in the Yongling Mausoleum, could not have guessed the current situation before the results of the gravity gradiometer:

Jiajing first dug a hole to bury the 'box', and then filled it with soil to build the Nine Temples Underground Palace.

True.

The lower copper hall occupies a small area. Except for the apse, a considerable part of the upper soil layer of the upper nine halls of the underground palace has not been excavated.

but the problem is

According to the etiquette system of the Ming Dynasty, the area where the tomb passage must be located is on the right side of the apse.

That is to say, no matter how curved the tomb passage is, it will inevitably pass through the area that is at least close to the ground breaking.

Perhaps at the beginning, the soil layer in that part of the area did not have much impact on the tomb passage.

But when the time span reaches the length of 460 years, those weak influences are not the same.

Coupled with the impact of flood water flow, so in a certain year and month that no one knows

The entire tomb collapsed like this.

In this way.

A question appeared in front of Zhang Ziang and the others:

Even the underground palace of the Nine Palaces is 27 meters deep from the ground, and the layout of the tomb passage is still winding, and the actual length may even exceed a hundred - the length of the Dingling Mausoleum passage is 103 meters.

Therefore, if you want to break through such a long collapsed tomb passage, the difficulty will probably be very high.

As professional archaeologists, Zhang Ziang, Weng Tong and others are clearly aware of this.

Therefore, after Zhang Ziang introduced the situation,

The atmosphere at the scene suddenly became a little heavy.

only

Except for Xu Yun.

I saw this outsider who knew nothing about civil engineering blinked, and raised his hand in some confusion:

"That. Academician Zhang, I have a question."

"Why do we have to go down the tomb passage when digging the underground palace?"

Zhang Ziang glanced at him, and replied without thinking:

"Of course it is to lock the entrance of the underground palace. Only after confirming the entrance of the underground palace can we determine the main body and orientation of the underground palace - all previous excavation work was done in this way."

"After all, the accuracy of remote sensing detection is limited, and what is surveyed and drawn is only a rough topographic map, unless a large amount of mercury can be detected in the underground palace and Qin Shihuang's mausoleum, and the accurate position judgment can be made through mercury."

"After all, the focus now is on protective digging, wait a minute!"

As a result, the last digging word was not finished.

Zhang Ziang suddenly realized something.

He suddenly turned his head and glanced at the imaging board, then patted his forehead forcefully:

"Damn it, why did I forget, the tmd we used this time is a gravity gradiometer!"

"With this thing here, why don't we just drill down the hole?"