Current location - Music Encyclopedia - Today in History - Urgent ~ ~ ~ I am a junior one, and the teacher asked us to talk about the history class of grade seven (the first class is the prosperous Sui Dynasty) and look at the problem in detail ~ urgent, urge
Urgent ~ ~ ~ I am a junior one, and the teacher asked us to talk about the history class of grade seven (the first class is the prosperous Sui Dynasty) and look at the problem in detail ~ urgent, urge
Urgent ~ ~ ~ I am a junior one, and the teacher asked us to talk about the history class of grade seven (the first class is the prosperous Sui Dynasty) and look at the problem in detail ~ urgent, urgent ~ Similarities between Sui Dynasty and Qin Dynasty: 1 existed for a short time. Both of them are moving from division to unity. Each has a big project: Wan Li Great Wall. Sui: The Grand Canal. As a result of the peasant uprising, everyone died. (or overthrown by the peasant uprising. ) Grand Canal: Purpose: To strengthen the north-south traffic and consolidate the rule of the Sui Dynasty over the whole country. Center: Emperor Yang Di opened a Grand Canal running through the north and south. The Grand Canal is the longest canal in ancient times, with Luoyang as the center, Zhu Xian in the north and Yuhang in the south. It was about 1200 years before a similar bridge was built in Europe.

Zhao Zhouqiao Scenery (1) (16 photos) The name of Zhao Zhouqiao is named after its geographical location. The outstanding representative of ancient stone arch bridge in China is the world-famous Zhao Zhouqiao (also known as Anji Bridge) in Zhao County, Hebei Province. This bridge was built by Li Chun in the early years of the great cause of Sui Dynasty (around 605 AD). It is an open-web circular stone arch bridge with a clear span of 37 meters, a width of 9 meters and an arch height of 7.23 meters. There are two abdominal arches with different spans on both sides of the arch ring, which can not only reduce the dead weight of the bridge and save materials, but also facilitate flood discharge and increase the height of the bridge. Zhao Zhouqiao's design concept and exquisite craftsmanship are not only second to none among ancient bridges in China. According to the research of bridges in the world, open-shouldered arch bridges like this didn't appear in Europe until the middle of the 9th century, which was more than 200 years later than China. Zhao Zhouqiao's sculpture art, including balustrades, watchposts, lock stones, etc., is worthy of being an artistic treasure in the treasure house of cultural relics because of its lifelike shapes and exquisite craftsmanship. The construction technology of stone arch bridge in China was in 199 1 year. The American Society of Civil Engineers selected Anji Bridge as 12 "milestone of international historical civil engineering" and built the bronze medal monument of "international historical civil engineering monument" on the east side of the northern end of the bridge. Monument to "International Civil Engineering Monument"

Zhao Zhouqiao, also known as Anji Bridge (named after Song Zhezong, which means "helping people"), is located on the Weihe River in Zhao County, Hebei Province. It is the oldest and best-preserved huge stone arch bridge in the world. Zhao Zhouqiao is the first open-shouldered stone arch bridge to be selected into the world record association Book of World Records, which is the best in the world. Known as "one of Four Treasures of the Study in North China". The bridge is 50.82 meters long, 37.02 meters across, 7.23 meters high, 9.6 meters wide at both ends, slightly narrower in the middle and 9 meters wide. Because the shoulders at both ends of the bridge have two small holes, which are not solid, it is called open shoulder type, which is a creation in the history of bridge building in the world (called full shoulder type or solid shoulder type without small arch). There are many things on the bridge, many kinds and colorful. Zhang Kun of the Tang Dynasty said that looking at this bridge from a distance is like "Yun Qi in the early month, Changhong drinking the stream". Zhao Zhouqiao was founded in 605 AD, more than 65,438+0,400 years ago. It experienced 10 floods, 8 wars and many earthquakes, especially17.6 Xingtai earthquake on March 8, 966. Zhao Zhouqiao is only over 40 kilometers away from the epicenter and has not been damaged. Mao Yisheng, a famous bridge expert, said that no matter what the internal structure of the bridge is, only it can exist 65,438+. 1963 The flood flooded the arch of the bridge. According to the local old man, standing on the bridge can feel the bridge body shaking greatly. According to records, Zhao Zhouqiao has been restored nine times since its establishment. At the top of the main arch ticket, there are statues of Li Chun at both ends.

Adding two small arches can save materials, reduce the dead weight of the bridge (reduce the dead weight 15%) and increase the discharge of river water under the bridge. Third, make the bridge more beautiful.

Zhao Zhouqiao (20 1 1)(5 sheets)1979 In May, a joint investigation team composed of four units, including the Natural History Department of China Academy of Sciences, investigated the bridge foundation in Zhao Zhouqiao. The weight of Zhao Zhouqiao is 2,800 tons, and its foundation is only a five-story stone platform with a height of 1.55 meters, which is directly built on the bridge. Such a shallow abutment is unbelievable. When Mr. Liang Sicheng inspected 1933, he thought that it was only a diamond wall to prevent water erosion, but not the foundation to bear the full load of the bridge ticket. In his report, he wrote: "In order to measure the coupon base, we dug at the foot of the coupon in the north, but now about 70-80 cm below the riverbed, that is, we found a stone wall lying flat under the coupon. Stone * * * has five floors, and the height of * * * is1.58m. Each floor is slightly higher than the upper one, and there is no solid foundation below. Obviously, it is just a diamond wall used to prevent water erosion, not a foundation bearing the full load of bridge vouchers. Because water will be seen in another 30-40 cm, unless it is excavated on a large scale, it is impossible to reach the bridge foundation position that we speculate according to theory. " Its structure still follows Zhao Zhouqiao, but the number of small arches on the main arch is increased to five on one side, and there are wheel marks and knee marks on the bridge. Located on the Weihe River in Zhao County, Hebei Province. It was built in the Sui Dynasty (AD 58 1-6 18) and the Daye period (AD 605-6 18), designed and built by the famous craftsman Li Chun, about 1400 years ago. It is the earliest and best preserved ancient open-shouldered stone arch bridge in the world today. 196 1 was listed as the first batch of national key cultural relics protection units in the State Council. Because Zhao Zhouqiao is a key cultural relic, it is easy to be damaged when it is opened to traffic, so it cannot be opened to traffic.

It seems that Zhao Zhouqiao is not the first lesson. When did you learn it? It is not easy to type a word. Why don't you give it to me? Dear (╯ 3 ╰) ╮)