"..."
Then Ruo Wengtong and Tong Huaijun's eyes changed.
The eyes of the rest of the people at the scene also quickly fell on Zhang Ziang who was standing beside him.
Then Jiang Chenggu pondered for a moment and asked Zhang Ziang:
"Academician Zhang, do you have any suggestions for the excavation plan of Yongling?"
"..."
Zhang Ziang opened his mouth as if he wanted to say something, but in the end he replaced it with a softer wry smile: "Director Jiang, how come you, a big shot from the office, are so Party A..."
"I haven't even touched the report of the gravity gradiometer yet. How can I come up with specific suggestions without knowing the specific structure of the underground palace?"
Said.
Zhang Ziang sighed.
Jiang Chenggu: "..."
right.
What Zhang Ziang said sounds like... quite reasonable?
Engineer Ma, who had just picked up his wig, didn't know what to think when he saw this, and a trace of sympathy showed on his face. Computers and civil engineering, these two incompatible industries, are the industries where we most often encounter strange clients.
Everyone who plays the SLG game knows that building a building takes time, but those Party A always think about setting up the project today and seeing 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 assisted me in importing the measurement data of the gravity gradiometer into our system. We will analyze and discuss on the spot to see if we can come up with a preliminary plan."
"Anyway, either 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 use gravity The gradiometer can then be flown into the sky for real-time inspection, saving time and effort.”
Jiang Chenggu pondered for a moment and quickly nodded: "No problem."
Zhang Ziang's construction survey team is fully staffed today and is well prepared in terms of equipment. It is indeed capable of on-site analysis.
At the same time, although the location of the Ming Tombs seems to be relatively remote, with many mountains and dense forests around it, after all, it is a suburb of Yanjing, so there is no need to worry about signal transmission.
Therefore, if you encounter some difficult-to-solve problems, you can also remotely call the design institute for support. More importantly.
It was different from the early morning hours when the convoy set off.
The time at this time was approaching noon, which happened to be the peak node of Yanjing.
In addition, there are no number restrictions on vehicles in Yanjing on weekends, and the level of traffic jams is several times that of weekdays. Just now, Jiang Chenggu took the time to glance at his mobile phone and found that today's traffic index t was already 8.3.
Jiang Chenggu estimated that if he closed the team now, he would probably be able to have dinner back at the bureau... So instead of wasting time in traffic jams, it was better to discuss the plan on the spot.
Although most of the people at the scene are not civil engineering brothers.
But as the saying goes, three cobblers are as good as one Zhuge Liang. How can they come up with any useful opinions even if they can't keep it together? So under Jiang Chenggu's instruction.
Xu Yun quickly assisted Zhang Ziang in importing the data into a system of the Academy of Engineering.
At the same time, a remote sensing vehicle on site was also expanded and acted as a command vehicle. ten minutes later.
Data import is completed. at the same time.
A picture board was also placed in the open space. Although the probability of the picture board being photographed by satellite and leaking secrets was very low, Zhang Ziang and others still added a privacy grating to it.
This kind of privacy grating is different from the various privacy films on the market, and is a real privacy device:
It only allows light from the front and right side to pass through, that is, only people standing on the front and right side of the picture plate can see the image, and it will look dark from any other angle.
After a while.
Zhang Ziang got off the remote sensing vehicle, took a stack of documents to the right side of the picture board, and spoke to the public.
The person said:
"Everyone, as you can see, the detection results of the gravity gradiometer have been imported. Now let me introduce to you the basic information of Yongling."
Everyone hurriedly listened attentively.
Then Zhang Ziang took a deep breath and stretched out his hand to draw a circle on the top view area of the picture board:
"First of all, after our detailed measurement, the accurate width of the treasure city on the surface of Yongling is 237.5 meters, which is slightly shorter than the 81 feet recorded. It should be damaged due to weathering and flooding."
"However, the foundation of Baocheng is still very solid. The rammed earth foundation covers an area of 40,000 square meters, which is roughly 200x200 in size. The average thickness of sand and gravel deep into the bottom layer is 2.31 meters."
"Underneath the rammed earth foundation, there is a hard foundation trench of about 1 meter and a large amount of natural gravel."
Hear this.
Jiang Chenggu, Weng Tong and Tong Huaijun, three archaeological officials and experts, subconsciously nodded in unison. As everyone knows.
As one of the four ancient civilizations in the world.
The history of Chinese architecture has been influenced by Chinese culture, and it can be said that it has spread throughout ancient and modern times and spread outside the region. There are a large number of complex rules and procedures in almost every aspect of every building.
For example, the beams. For example, eaves columns. Another example...the foundation.
The foundations of ancient Chinese architecture are so complex that a whole course can be taught on them.
For example, the foundation of a home is called a homestead, and the foundation of a building like Yongling is called a "platform foundation."
The four sides of the platform base are generally made of masonry, with most of the inside filled with soil, and the surface covered with masonry. It is solid and solid, and most of the shapes are relatively square. The higher the level of the building, the more prominent and tall the platform.
Of course.
Some small households also like to use platform bases.
However, most of the foundations of ordinary homes are made of clay to expand the lintel, which is the so-called local reputation value +10. Therefore, the lintel wood on this kind of mud platform is also called the base mud platform lintel.
The foundations of imperial tombs such as Yongling are much more formal, and there are special requirements for how to build the specific base.
For example, the Song Dynasty compiled "Building Methods" and the Qing Dynasty compiled "Engineering Practice Rules", which introduced the foundation structure of the imperial tombs in detail.
In general.
The foundation of the imperial mausoleum will have one level of irregular step stones. It's called "stepping". Below the "stepping" is the foundation.
The material selected for this type of foundation is usually sticky or sandy soil. The rammed foundation and "treading" form the so-called masonry structure. Below the masonry structure is the natural stone foundation.
That is to say, natural rocks are used as the foundation trench to expand the load-bearing effect of the building. The technical capabilities are relatively much higher, and it is also the most critical position of the platform foundation.
Now look at the structure of Yongling.
This part of Yongling's design followed the Ming Dynasty's ancestral system relatively completely, and did not suffer the "poisonous hand" of Jiajing. Then Weng Tong thought for a moment, let out a slight "Oh", and said to Zhang Zi'ang:
"Old Zhang, if I remember correctly..."
"The base structure of the Jin Tomb of Xiyanchi seems to be distributed in this way, right?"
Zhang Ziang nodded:
"That's right."
Perhaps it was because there were several laymen at the scene.
After Zhang Ziang finished answering Weng Tong's question, he introduced Academician Pan, Xu Yun and others:
"Academician Pan, the Jin Tombs in Xiyanchi that the old man is talking about refer to the two Jin Dynasty tombs found underground in Wang Xizhi's former residence on Xiyanchi Street in LY." "Tomb No. 2 has been robbed in history, and fewer cultural relics were unearthed."
"But Tomb No. 1 is well preserved. In 2003, more than 250 funerary objects were unearthed, including seven national first-class cultural relics." "Wang Xizhi?"
Hearing what Zhang Ziang said, Xu Yun raised his eyebrows and asked with some uncertainty:
"Academician Zhang, is this tomb you are talking about the Jin tomb whose owner is highly suspected to be Sima Jin?" Zhang Ziang smiled slightly and affirmed:
"Yes, that's the tomb." Xu Yun finally understood.
Although he is not an expert in history, he has a good memory.
In 2016, the test results of the owner of the Xiyanchi Jin Tomb were once on the hot search, and it also triggered a debate about the so-called Chinese 'orthodoxy'.
So Xu Yun did have some impression of this matter. The whole story is as follows:
At that time, the archaeological team discovered a total of five corpses in the two Xiyanchi Jin Tombs. The three tomb owners in Tomb No. 1 were all minors, and the Tomb No. 2 contained the 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 Shen. After DNA testing, it was found that the chromosome belongs to the southern branch of C3 - F3880+F948+. So at that time, the issue of paternal chromosomes was a hot topic, and a group of people were quarreling.
For example, the Y-chromosome haplogroup N of the Ji Zhou nobles belongs to the northern branch, while the Yin Shang family belongs to the southern branch of the C line, etc...
While Xu Yun was recalling this incident, Academician Pan was obviously thinking more practically. He asked Zhang Ziang: "In that case... Academician Zhang, does this represent the foundation of Yongling?" Is there actually a case for reference in the excavation work?”
"The Xiyanchi Jin Tomb was excavated in 2003. The technical means at that time could successfully dig out the foundation. It should be easier for us now, right?"
Zhang Ziang nodded slightly, but the expression on his face was still solemn:
"If you look purely at the foundation... that is, the area three to four meters below the ground, there is indeed precedent for excavation experience." "That is, we have the ability to open up the upper layer without causing large-scale damage to the treasure city. This area, but..." Zhang Ziang was silent for a moment after speaking, and then stretched out his hand again to draw on the area of the picture board:
"But according to the detection results of the gravity gradient meter, the tomb passages leading to the underground palace under the foundation... have all collapsed at this time."
Academician Pan was stunned:
"What? The tomb passage 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 and the influx of excess water during floods, which caused the entire tomb passage to collapse beyond its limit."
"This is something we did not expect. After all, we had no idea about the existence of the lower Bronze Palace before this. The pre-design of the entire soil layer was simulated according to the Dingling Underground Palace."
Zhang Ziang's words are really not shirk.
Even Xu Yun, who knew that the "Yongle Dian" was stored in Yongling, could not have guessed that the situation would be like this before the results of the gravity gradiometer came out:
Jiajing first dug a hole and buried the "box", and then filled it with soil to build the Nine Halls Underground Palace. True.
The lower copper hall occupies a very small area. Except for the apse, the upper soil layer of a considerable part of the upper nine-hall underground palace has not been excavated.
But the problem is...
According to the etiquette of the Ming Dynasty, the area where the tomb passage is located must be on the right side of the apse.
That is to say, no matter how curved the tomb passage is, it will inevitably pass...at least close to the area where the ground has been broken. Perhaps at the beginning, the soil in that area did not have much impact on the tomb passage.
But when the time span reaches the length of 460 years, those weak effects are completely different. Coupled with the impact of floods and water flows, in a certain month and year that no one knows...
The entire tomb passage collapsed like this. This way.
A question appeared in front of Zhang Ziang and others:
Even though the Nine Halls Underground Palace is 27 meters deep from the ground, the layout of the tomb passages is still winding and winding, and the actual length may even exceed 100 meters - the length of the tomb passages in Dingling is 103 meters.
Therefore, it would be very difficult to break through such a long collapsed tomb passage.
As professional archaeological practitioners, Zhang Ziang and Weng Tong obviously know this very well. therefore
After Zhang Ziang introduced the situation,
The atmosphere at the scene suddenly became a little heavy. Only...
Except Xu Yun.
This outsider who knew nothing about civil engineering blinked and raised his hand in confusion: "Um...Academician Zhang, I have a question..."
"Why do we have to go down the tomb passage when we dig the underground palace?"
Zhang Ziang glanced at him and replied without thinking:
"Of course it is to lock the entrance to the underground palace. Only by confirming the entrance to the underground palace can we determine the main body and location of the underground palace - all previous excavation work has been done in this way."
"After all, the accuracy of remote sensing detection is limited, and what is measured and mapped is only a relatively rough topographic map, unless the underground palace can detect a large amount of mercury elements like the Mausoleum of Qin Shihuang, and accurate position judgments can be made through mercury elements."
"After all, the emphasis now is on protective digging... Hey, wait!" As a result, the last word "dig" was not finished.
Zhang Ziang suddenly realized something.
He suddenly turned his head and looked at the picture board, and then slapped his forehead hard: "Damn it, why did I forget that the gravity gradiometer we used this time is there!" "There is this thing. , can’t we just drill the hole down?”
.......
Note:
The teacher has a funeral, and I will go back to my hometown tomorrow, so I will take a day off, and then... continue to update daily by tens of thousands, probably for five to six days, and then update at a minimum for a few days, and then continue by the end of the month.
Vest defense battle, stamping! ! ! ! !
