Into Unscientific

  Chapter 492 Collapsed tomb passage

  “.”

  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.

  Afterwards, 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, why is the big man from the office like you?"

   "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."

   said.

  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 party A.

  People who play SLG games know that it takes time to build buildings, but those Party A always think that if they set up a project today, they can 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 assisted me in importing 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 analyze on-site.

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

   More critically.

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

   At this time, the time is approaching noon, which happens 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.

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

  Although most of the people on site 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 get everything right?

  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 on the scene was also expanded to serve as a command vehicle.

ten minutes later.

  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 leaking 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 recorded 81 feet. It should be damaged by weathering and floods."

   "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 in size. 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.”

   Hear this statement.

  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.

  China'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.

  Almost every aspect of every building has a lot of complicated rules and procedures.

   For example, beams.

   For example, eaves pillars.

  For 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 homestead, and the foundation of a building like Yongling is called a 'platform foundation'.

  The four sides of the platform are generally made of masonry. Most of the inside is filled with soil, and the surface is also covered with masonry. It is firm and solid, and its shape is mostly square.

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

  The foundations of imperial tombs like the 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 Regulations", which introduced the foundation structure of the imperial mausoleum in detail.

  Generally.

  The platform foundation of the imperial mausoleum will have irregular stone steps one by one. Called "stomping".

   Below the "stomp" is the tamping of 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 use natural rock as the foundation groove to expand the load-bearing effect of the building. The technical strength is relatively much higher, and it is also the most critical position of the foundation.

  Now, from the structure of Yongling Mausoleum.

  The design of this part of the Yongling Mausoleum has followed the ancestral system of the Ming Dynasty relatively completely, and has not suffered 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."

   "The foundation structure of the Jin tomb in Xiyanchi seems to be distributed in this way?"

  Zhang Ziang nodded:

   "Exactly."

  Perhaps it was because there were several laymen on the scene.

  After answering Weng Tong’s question, Zhang Ziang 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."

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

   "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 are talking about the Jin tomb whose owner is highly suspected to be Sima Jin?"

  Zhang Ziang smiled slightly, affirming:

   "Yes, that is the tomb."

  Xu Yun finally understood.

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

  Back in 2016, the test results of the owner of the Jin tomb in Xiyanchi were once a hot search, 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 cause and effect of the whole thing is 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 in 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 Yi. 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-chromosomal haplogroup N of the nobles of Ji and Zhou, the southern branch of the C line of Yin and Shang, etc.

   When Xu Yun recalled this incident, Academician Pan obviously considered more practically. He asked Zhang Ziang:

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

   "The excavation time of the Xiyanchi Jin tomb was in 2003. The technical means at that time could successfully dig the foundation. 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 of three to four meters below the ground, there are indeed precedents for excavation experience."

   "That is to say, we have the ability to open up this upper area 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 passages leading to the underground palace under the foundation have 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 to collapse beyond the limit."

   "This is something we didn't expect. After all, we didn't know about the existence of the lower copper palace before. The pre-design of the entire soil layer was simulated according to the Dingling Underground Palace."

   Zhang Ziang's words are really not evasion.

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

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

   Indeed.

  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 should be located must be on the right side of the apse.

   That is, 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.

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

  The entire tomb passage collapsed like this.

   In this way.

  A question appeared in front of Zhang Ziang and others:

  Even if the underground palace of the Nine Palaces is 27 meters deep from the ground, the layout of the tomb passage is still winding, and the actual length may even exceed a hundred—the length of the Ding 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 and Weng Tong are clearly aware of this.

  So after Zhang Ziang finished introducing 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 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 when the entrance of the underground palace is confirmed can we determine the main body and orientation of the underground palace—this is how all previous excavation work was done."

   "After all, the accuracy of remote sensing detection is limited, and what is surveyed and drawn is only a relatively rough topographic map, unless a large amount of mercury can be detected in the underground palace and the Mausoleum of Qin Shihuang, 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, I didn't finish the last word digging.

  Zhang Ziang suddenly realized something.

   He suddenly turned his head to look at the imaging board, and then patted himself on the forehead:

   "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?"

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, probably for five to six days, and then update for a few days at the end of the month, and then continue to update daily at the end of the month.

  Vest defense battle, stamping! ! !

  (end of this chapter)