A middle-aged man with a moustache was full of smiles, his eyes were slender, his eyebrows were thick, his face was slightly thin, but his eyes were very energetic, and he clapped his hands as he walked towards us.

"Hello, I am Li Yutang, vice president of the Tianhui (1) Museum, there are not many people on the earth who study ancient culture, I basically know them, I don't know you ......" The mustache speaks softly and clearly pronounces.

"Oh! We are extraterrestrial. ”

"Is that the star?"

"Celta!"

"O Celta! There are a lot of people on that planet, do you also pay attention to the teaching of the history of the ancient civilization of the earth? Li Yutang looked excited.

"No, it's just a personal interest, and some family relationships, I think it's fun to study antiquities, and I also went to take the second-level qualification of ancient culture of the earth!"

"Level 2 qualification, that requires high hands-on ability, it's not easy to test!" Li Yutang was full of appreciation, "There are few young people in our college, it's not easy, it's not easy!" ”

She smiled and didn't say anything. Then an inexplicable pride rose in my heart, and to be honest, I was quite interested in antiquities, but I only stayed at the stage of understanding, and did not go deeper. For the achievements made by Floc, I only know today how much gold there is in the second-level qualification of ancient culture.

"Nice to meet you!" Li Yutang stretched out his hand and shook it with Xu Fei, and after leaving the means of communication, the two began to communicate professionally again, and Selwin and I listened hard with a little understanding of this, while Besta and Boris hid away.

"Teacher Li, I read that the material says that the Shakya Pagoda should have been repaired in the middle for nearly 3,000 years, and I think this style is quite ancient, not like it was built by later generations. But how much of it is old-fashioned! The two looked like they hated to see each other, and Su Fei simply called the teacher, and Li Yutang seemed to enjoy the title.

"Shakya Pagoda was built in 1056 A.D., with a total of five bright layers and four dark layers, a total of nine layers, with a total height of 67.31 meters. The diameter of the bottom layer is 30.27 meters, and the diameter of the top layer is 19.22 meters, which gradually shrinks from the top to the top, and the whole tower uses more than 7,000 tons of wood. Its structure is a plane octagonal, inner and outer double vertical support, the structure is very complex, there are as many as 54 kinds of buckets. The main body of the whole tower is built with a falcon structure, and it does not use a single nail, it is a miracle in the history of human architecture, and it is not easy to preserve it to this day. What's even more rare is that most of its main components and statues inside are still old-fashioned things, which are all original, which is rare. Of course, some of its small components and some large components have been replaced, and the pagoda can stand for nearly 3,000 years, which is inseparable from the repair of the past dynasties. ”

"Mr. Li, you should know more about the repair situation! Tell us about it! ”

Li Yutang pondered for a while and said: "The Shakya Pagoda has been overhauled three times, the first time was in 2056 AD, that is, the whole thousand years after the pagoda was built. At that time, the main wooden components of the pagoda were left over from the first construction, and after thousands of years of wind and rain, the pagoda was seriously damaged, and various components in the pagoda were twisted and deformed. At that time, the main stressed members of the first, second and third floors were severely damaged, and the damage above the third floor was not large. The pagoda is also tilted to the north as a whole, and it has reached the point where it must be saved. “

"Since it's so serious, why didn't you fix it earlier?" I'm a little confused.

Li Yu Tang Dynasty smiled and said: "With the technical strength at that time, it was still relatively difficult to repair, but what was even more difficult was that I couldn't get one."

Unanimously approved schemes. ”

"Is it difficult to decide on a plan?"

"Yes! At that time, many construction experts carried out scheme demonstrations, and there were the following three schemes: 1. Reinforcement of the status quo, using steel and other materials at that time to reinforce the damaged parts. Second, the overall lifting of the second floor and the second floor above, and the correction of the second floor below. Third, the overhaul of the landing frame, the tower was all demolished and rebuilt, the original materials are easy to use, and the ones that cannot be used are replaced. The three options were contested, and in the end the second option was adopted. The project will start immediately, starting with the reinforcement of the three floors or more of the tower to be lifted as a whole. After the tower was partially reinforced, the foundation of the jack was built around the tower, and hundreds of jacks were erected after the foundation was built. At the same time as the jack is erected, the parts to be replaced in the pagoda are made. At that time, some of the large timbers to be replaced for the pagoda could not be found, so they had to use small materials to piece together, such as the original large wooden pillar with three small materials into one, and this work alone was carried out for more than two years. After all the preparations, the pagoda of several thousand tons was lifted as a whole, and it took more than two years to repair the second floor below after the lifting, and the pagoda took five years to repair. The second overall overhaul was in 2556 A.D., this time the whole reinforcement of each layer was used to lift away, and the four layers above the pagoda were lifted away layer by layer, and after the lifting was lifted, each layer was replaced with some seriously damaged components, and finally put it on layer by layer like building blocks. ”

"Devouring the Starry Sky: Signing in to Become a God"

"What kind of hanging?" A sentence was interjected.

"Whoa! With the gantry crane used for shipbuilding, the world's largest gantry crane was built at that time, with a lifting capacity of 2,500 tons. The most recent repair was made in 3156 AD, when human technology advanced by leaps and bounds and it was decided to carry out a radical and revolutionary overhaul of the oldest wooden pagoda in human history. ”

"Is it an overhaul of the landing frame? Or do you follow the same scenario as the previous two times? ”

"This repair is different from the previous two times, although the first two overhauls have worked well, but there is still some damage to the cultural relics. The solution for this repair is called the material enhancement method, and there is basically no need to replace the material. ”

"Material enhancement?" The people in the square have long been attracted by Li Yutang's explanation, and even Du Mingxuan has become an audience, and when they hear this plan, everyone feels very novel.

"Yes! We repair the pagoda because the components of the pagoda cannot guarantee the normal mechanical properties due to damage, in fact, as long as the components are restored to the mechanical properties. The reason why this can be done is inseparable from the progress of science and technology, and with the progress of science and technology, it is not difficult to do some things. In that repair, each piece of wood component was tested for defects before repair, and these components without defects were the easiest to deal with, as long as they were sprayed with carbon-based nitrogen ammonia; The defective one adopts the internal glue injection process, which is a high-tech product, which can fill the gaps in the wooden components and make them re-become components with good mechanical properties. Of course, some particularly damaged components have adopted the method of partial removal and partial replacement, and the physical properties can also be guaranteed. The injected components are revived, and the external spray of carbon-based nitrogen ammonia completely insulates the wooden components from the damage caused by wind and rain, so that the combination of inside and outside can make the tower stand for tens of thousands of years. This method of combining the inside and outside has been used on a large scale in ancient wooden buildings, and the results are very good. ”

Li Yutang's explanation greatly increased everyone's interest in the Shakya Pagoda, and everyone couldn't wait to climb the tower to see it immediately. The time finally came, and our group walked quickly in a long line towards the entrance of the wooden tower. When I arrived at the entrance of the wooden tower, I rarely saw ten armed officers of the Joint Logistics Service sweeping around with an instrument, checking that everyone was carrying with them

What to bring.

"This ancient tower is so important that the security measures are higher, and nothing that could cause a fire can be brought in." Li Yutang explained on the side, and I nodded, to say that the most feared thing about wooden structures is fire.

Li Yutang went in before us, and when we arrived, a person from the joint logistics department came over and stood in front of Besta and said, "I'm sorry this gentleman, you can't enter the tower." ”

"Why?" The Tanzanite's eyes were slightly open, obviously displeased, and I quickly stepped forward and asked, "Why!" You'd better give us a reasonable explanation! ”

The man looked at us like this and smiled bitterly: "Don't get me wrong, I can't help it." This gentleman is too big, and some of the structures of the wooden tower are still relatively fragile, so I am afraid that it will be difficult to bear the weight of this gentleman. Another important point is that the wooden tower is designed with the human body shape of an earthling, and the height and width of this gentleman are likely to cause some damage to the wooden tower, or it is inconvenient for him. If nothing else, you can only bend down when you want to go up those wooden stairs, and if you stand up, you will definitely have to meet, and the door opening is not high enough. Even some earthlings with a particularly huge height and body size are also restricted. Sorry, you can only visit outside. ”

Speaking of which, Besta couldn't say anything, so he had to tell us that he was waiting outside. Fortunately, he didn't seem to be interested in this tower in the first place, and it didn't matter if he couldn't go up or not. I patted him on the shoulder, and let them into the tower.

A huge statue of Sakyamuni stands in the middle of the tower, it is about more than ten meters high, the law is solemn, the face is coated with gold powder, the body is wearing a red robe, the right hand is stretched forward, the ring finger is slightly bent to make a Buddhist handprint. At the top of the statue is an octagonal caisson that looks like an open octagonal umbrella from below. The caisson also has two kinds of color paintings, the inner layer of small umbrellas is painted with a diamond-shaped grid pattern, and the outer layer is a square grid pattern, which is particularly dignified and generous. The huge exposed wooden components shine with an attractive natural luster of wood, and if there is no introduction from Li Yutang, I will definitely think that some kind of lacquer has been painted! These components have been rejuvenated after high-tech restoration.

On the second floor, there is an altar in the middle position, above is a small statue of Sakyamuni, there are four Buddha statues around the statue of Sakyamuni, listen to Du Mingxuan introduce the four statues are the east and west waki-serving Bodhisattva, Puxian Bodhisattva, Manjushri Bodhisattva. There is no caisson well on this floor, you can see that the tower body is in the circle bucket and orderly combined into an octagonal horizontal support structure, there is no plate in the middle of this support structure, and finally through eight girders to enclose a hollow structure with an inner diameter of nearly ten meters, you can see the floor of the third layer of bright layers, which should be the dark layer just mentioned. This dark layer form ensures that the tall space in the tower is used to shape the tall Buddha statue, and increases the horizontal stiffness of the tower body, and has to shout the multi-material and multi-wisdom of the ancients.

Go up to the fifth floor, each floor has a statue of Shakyamuni and other kinds of Buddha statues, the name of the Buddha Pagoda may also be because of the statue of Shakyamuni shaped on each floor of the tower! At the top, everyone walked to the corridor under the eaves of the tower and stopped to look into the distance, and the whole picture of Ning County was retracted in front of them. I hugged the door and listened to the quaint wind chimes hanging in the eaves making a "ding" sound in the wind, the sound was so clear, it seemed to pass through thousands of years from the moment it was just hung up, and it only reached my ears today, I couldn't help but be a little stupid.

Note (1)

Tianhui: the current place name, located in the ancient city along the Yangtze River.