Kỹ sư Mỹ cũng không biết người Trung Quốc đã xây dựng các công trình này như thế nào?

These constructions are all lying on the mountains, the rocks, or we have just seen the feeling on the dangerous wall gradually to the cold back. In it, there are constructions that have existed for hundreds of years, even thousands of years, which makes us wonder. At that time, what did people do to build these constructions? They must have a mind of steel. In today's video, we will explore the most dangerous construction projects in China. China's most dangerous construction projects The Chaozhou Pagoda or Huiankong Temple was built on the mountain range of Hangshan, Hunyuan District, Shanxi Province. This is the most famous scene in the area. According to many records, the pagoda was built in 491, in the Northern Wei Dynasty, by a monk named Li Aozhan. The back is based on a hollow stone wall and faces a valley. From afar, the pagoda looks like it is wandering in the air. For more than 1,500 years, the pagoda has undergone many renovations and expanded to a large scale as it does today. The pagoda, once chosen by the magazine Times, is one of the 10 most dangerous and frightening architectural constructions in the world. In 2010, because of its unique position hanging on a cliff more than 70 meters away from the ground. Such a special construction position is to avoid flooding. At the top of the mountain, the entire pagoda is protected from rain, sun and snow. The second reason is to avoid noises such as chickens, animals and human activity. Thus, this architecture has existed for more than 15 centuries. Not yet designed according to the architectural style, Nhat Viet built a tower. A temple, also known as a large hall, with two towers connected to each other by a suspension bridge, a total length of 32 meters with about 40 spans. The two main towers, named Northern and Southern Pagodas, are facing each other. Three sides are surrounded by mountains. Inside are six main poles and parallel paths. With a weight of more than 10 tons, plus having to go through countless earthquakes and disasters over a long period of time. It seems that there is some kind of special glue that helps the pagoda stick to the cliff. Some people also say that the pagoda is supported by dozens of pillars. In fact, the pillars that we see today are only added for a very long time after the pagoda was built. To fix the positions that are no longer flat. At the same time, to calm those who are worried that this relic will be thrown down. What is really helping and fixing the pagoda is 27 layers of sandstone buried deep into the cliff. These wooden columns are called Tuyet Bien Dam. A special type of sandstone in the local area is processed into a square and then buried deep into the cliff. All of the sandstone is submerged in a kind of tree in China called Vernikia Foyi. To resist moisture and moisture. According to Gechev, the construction and installation of such a wooden column is extremely laborious. In order to resist a heavy construction of up to 10 tons, each point must be calculated very carefully. There are trees that are made to withstand gravity. There are trees that are used to balance the low altitude of the pagoda. There are trees to increase the weight on the top. Only in this way can it exert its anti-slip effect. Experts assess that the construction technique of the pagoda is very creative and difficult to do. Even when modern technology develops like today. Located on the top of Pham Tinh Son mountain, Quy Chau province, China. There are two small temples built on top of a pair of young stones. This natural young stone has a name called Hong Van Kim Dinh. It means the top of the yellow cloud red mountain. This place was recognized by UNESCO as a World Heritage Site in 2018. Chinese Buddhists consider this a sacred mountain. Because it is regarded as the temple of the Buddha Jilak. Or it is also called a tomb. The Buddha and the Jilak Pagoda are separated by a deep mountain. But they are connected by a stone bridge. Surrounded by magnificent nature. These two small Buddhist buildings are centuries old. With some commentators saying that they date back to the 7th century AD. The temple is located on the south side of the Buddha Thich Cam Ninh. Symbol of the present. The temple is located on the north side of the Buddha Jilak. Represents the future. What makes the temple famous. And become the most attractive attraction. Is the secret of the construction process. To date, there are still no documents clearly recorded. About how to transport materials to this stone mountain. The temple has been renovated. Reinforced with more solid materials. To resist strong winds. High temperature environment. However, the construction that tourists see today. Still maintains the original architecture. To get to this temple. First, tourists have to climb more than 8,888 steps. To reach the temple on the south side. Then walk across the bridge to visit the remaining construction on the north side. As well as the journey from now to the future. When climbing thousands of steps along the rocks. Tourists can admire the ancient lines from the Ming Dynasty. Prove that this is a sacred place for a long time. Tourists from all over the world come to this magical place. To enjoy the beautiful scenery of Phan Vinh San National Nature Reserve. This place is home to more than 2,000 species of plants. And hundreds of rare animals. Hundreds of millions of years ago. Pham Tinh mountain slowly rose from the bottom of the ocean. Beautiful landscapes such as stone walls, steep slopes. Deep caves and waterfalls formed from 1 to 1.4 billion years ago. It still exists to this day. The Cam Lo temple is hidden in a natural rock. The entire temple is divided into 4 parts. In it, the middle part is supported by a 30-meter-tall spruce tree. The remaining parts are built into a stone wall. This construction is carved in the original way. Exhibits clearly the architectural style of the Chieu Dai Nha Tong. It can be seen clearly. Building a temple on a stone wall is not easy. But what is more surprising. It is all this construction. When the craftsman did not use any nails. Instead, the ancient architects applied the technique of jointing wood. So that the parts of the construction are closely connected to each other. No need for intermediate objects. The jointing technique of wood just keeps the joints firm. Smooth over time. It just shows the depth of the water. The depth of the water is extremely deep. This makes the post-modernism have to repeat the work of the ancient architects. Because in the era of no technology. They only rely on hands, blocks of steel. But the exact calculation of each small detail for the entire construction is great. Although the construction is difficult. But the position on the climbing stone wall of the Cam Lo Nham temple also exerts certain advantages. Due to the whole action has an inverted triangle shape. The stone wall on the top protrudes like a cover. So the rainwater and the falling stones have to be affected. This place is also located at a high position. The light duration of the sun is relatively long. It also avoids the risk of flooding due to heavy rain. So the temple is always bright and dry. It is only protected by a pole. But this work has been standing for nearly 900 years. It has never been relocated. It makes the modern architects have to bow their heads. Recently, a convenience store is hanging on a high cliff. More than 100 meters from the ground. In Nhat Duong, Hunan province, China. It has become the topic of hot dissemination by netizens. Many netizens ask themselves. Buy a bottle of water but also have to climb high like that? Is there an airline employee there? How do you go to work every day? How is this store built? They also call this the most inconvenient convenience store. Located in Thach Nhu Trai Tourist Area. The store has an area of ​​about 2 square meters. And can only accommodate 1 person. The store is built with a wooden floor. There are anti-slip bars. Below is a deep cliff. About 120 meters high. Looking from afar. The wooden house is like a cold machine on a high-rise wall. The store was built in 2017. And opened in late April 2018. The house is very light. So experts say. It will not damage the original mountain structure. There is a small pool below. To prevent objects from falling down and hurting people. To ensure safety. The convenience store does not open on rainy days. Equipment such as safety locks are also installed. To ensure certainty. Climbers can use the safety lock. To fix yourself on the cable when shopping. According to the owner of the store. This is a non-profit experience project. Which aims to bring convenience. And add physical strength to climbers. For example, water. Bread. Chocolate. Let them rest for a while. Before climbing to the top of the mountain. Because each bottle of water. Only costs 2 yuan. About 7,000 VND. Supplying goods to the store. Is not an easy task. Every day. They have to carry water. And food through the suspension bridge. Then climb to the convenience store first. I don't know. But the most difficult thing is to go to the toilet. Because climbing down is very tiring. So they don't dare to drink a lot of water. After watching this video. You can see that the old climbers. Really know how to find a place to set up a tent. Thank you for watching the video. See you in the next videos. Of Hitech Amazing.