What are the characteristics of the Great Wall Rush Rush Rush Rush 15

One sentence explanation: It is said that both sides of the Great Wall are hometowns, and you know how long the Great Wall is.

What are the characteristics of the Great Wall Rush

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What are the characteristics of the Great Wall? 1. Long history The Great Wall of Qin was built in the third century BC and has a long history of more than 2,300 years. If it can be traced back to the Great Wall of Chu and Qi during the Western Zhou Dynasty and the Spring and Autumn Period and the Warring States Period, the Great Wall of China has a history of at least 2,700 years.

Even the Great Wall built in the Ming Dynasty has been more than 600 years. Such an ancient and great building, which can be preserved to this day, is very rare, precious and rare in the world.

2. Amazing length From the Spring and Autumn Period and the Warring States Period to the Ming Dynasty, the Great Wall has been repaired and increased to varying degrees in successive dynasties. The Great Wall spreads across 16 provinces, municipalities and autonomous regions in the Yellow River and Yangtze River basins, running both east-west and north-south, with a total length of 108,000 miles (54,000 kilometers). Among them, there are more than 10,000 miles of the Great Wall of Qin, the Great Wall of Han and the Great Wall of Ming.

Because it is more than 10,000 miles, it is called the Great Wall.

3. The project is huge According to the rough calculation of scientists, if the earth, bricks and stones of the Great Wall of the Ming Dynasty are used to build a city wall 1 meter wide and 5 meters high, then it can circle the earth; If it were used to pave a road with a thickness of five meters and a width of 5 meters, it would circle the earth three times. According to the report of the American astronauts who landed on the moon, they could only see two man-made structures on the earth without using astronomical telescopes but only with the naked eye: one was the seawall of the Dutch Zuiderzee to reclaim the sea, but it was short, small, and indistinct.

The first is the Great Wall of China, spanning the northern half of the earth, resembling a ribbon, which is very spectacular, which shows the greatness of this project.

4. The construction is superb The place where the Great Wall passes, or high mountains and deep valleys, or rivers, seas and lakes, or desert grasslands, etc., the geological terrain is extremely complex and steep, and the construction operation is particularly difficult. In order to build the Great Wall, it is necessary to understand and apply a variety of scientific and technological knowledge such as mathematics, mechanics, geometry, surveying, geology, architecture, organization, and transportation. The fact that the working people of our country in ancient times were able to build this huge and complicated project and stand tall in the world for thousands of years shows that the infinite wisdom and great creative spirit of the Chinese nation are all convincing and eulogisative.

The main characteristics of the Great Wall are: the construction time is the most scattered, the amount of work is the largest, it has the function of defense, and the function of ornamenting the Huzi people.

Introduction to the Great Wall attractions:

The Great Wall, also known as the Great Wall, is a military fortification in ancient China, which is a tall, strong and continuous long wall to limit the movement of enemy cavalry. The Great Wall is not a simple isolated city wall, but a defense system with the city wall as the main body and a large number of cities, barriers, pavilions and beacons.

The Badaling Great Wall Scenic Area is a demonstration site of the National Civilized Scenic Tourist Area, which is famous for its magnificent landscape, perfect facilities and profound cultural and historical connotation, and is a world-famous tourist resort.

The Badaling Great Wall is known as one of the nine fortresses in the world, and the scenery is a collection of majestic and precipitous, beautiful and verdant in one, which is the essence of the scenery of the Great Wall of the Ming Dynasty. "If you don't go to the Great Wall, you are not a hero", many Chinese people take this place as the main choice to climb the Great Wall.

The Badaling Great Wall is a trapezoidal shape that is narrow in the east and wide in the west, and there are two gates in the east and west. The east gate is titled "Juyong Outer Town", and the west gate is titled "North Gate Lock Key". The Great Wall that extends to the north of Guancheng is the North Great Wall, and there are 12 enemy towers.

To the south of Guancheng is the South Great Wall, and there are 7 enemy towers. The South Great Wall has fewer tourists than the North Great Wall, so if you have enough time, you can go to the South Great Wall first, then the North Great Wall.

Precautions: When traveling, you should bring necessary items, such as suitable clothing, folding umbrellas, etc. Then bring some medicines, wind oil essence, motion sickness medicine, etc., which will reduce a lot of troubles during the travel process.

The common birds in the north of <> are the black-naped oriole, the longevity bird, the three treasures, the black curly-tailed, and the peacebird.

1. Black-naped oriole: It is a medium-sized finch species. It is similar in size to the golden oriole and has a body length of 23-27 cm.

The whole body is golden yellow, and the wings and tail are black. The headrest has a broad black band that extends to the sides and connects with the black eye lines, forming a black band around the top of the head, which is very striking on the golden head.

2. Shoubandbird: There are 17 species in total. The male has two color shapes, with a body length of about 30 cm with tail feathers, a dark blue glow on the head, neck and crest, and white on the rest of the body. **The two tail feathers are four or five times as long as the body, resembling ribbons, hence the name.

3. Three Treasure Birds: Birds of the Three Treasure Birds of the Buddha and Dharma Sangha family are a kind of small and medium-sized climbing birds under the Three Treasure Birds of the Buddha and Dharma Sangha order, with a total of 10 subspecies, a body length of 26-29 cm and a weight of 107-194 grams. The whole body is blue-green, the head and wings are dark, black-brown, and the base of the primary flight feathers has a pale blue spot, which is very obvious when flying.

4. Black curly tail: about 30 cm in length, black throughout, with a blue luster on the upper body, chest and tail feathers. The tail length is deeply concave, and the outermost pair of tail feathers curl outward upward.

5. Peacebird: body length 18 cm, wingspan 34-35 cm, weight 40-64 grams, lifespan 13 years. It is a small songbird, the whole body is basically grape gray-brown, the head color is dark chestnut brown, there is a slender tufted feather crown on the top of the head, a black eye pattern from the base of the mouth through the eyes to the back of the occipital, located on both sides of the crest, in the chestnut brown head is extremely eye-catching.

Chin and throat black.

During the long years of Chinese history, many feudal dynasties built it many times in order to consolidate their rule; Tens of millions of working people in ancient China contributed wisdom and blood and sweat to it, making it a great wonder of the world. Whether it is a dragon-like city wall or a choking pass, it embodies the war idea of fortification at that time, and also marks the high achievement of construction technology at that time. For example, during the Ming Dynasty, with the high development of the feudal economy, the construction industry also reflected a large-scale production process and a relatively scientific firing brick and tile workshop.

Therefore, the output of brick products has increased greatly, and bricks and tiles are no longer precious building materials, so the inner and outer eaves of the city wall in many places of the Great Wall of the Ming Dynasty are built with huge bricks. At that time, it was all manual construction and manual handling of building materials, and the city wall was built with bricks of small weight and the same size, which was not only convenient for construction, but also improved the construction efficiency and improved the construction level. Secondly, many of the gates of the pass are mostly made of blue bricks to form long-span arches, some of which have been severely weathered, but the entire city gate is still majestic, showing the superb skill of masonry arches at that time.

Judging from the architectural decoration on the castle tower of the pass, the production techniques of many stone carvings and bricks are extremely complex and fine, reflecting the ingenuity of the craftsmen at that time.

The wall is the main part of the wall, with an average height of 7.8 metres, with some sections reaching as high as 14 metres. Where the hills are steep, they are built relatively low, and where they are flat, they are built higher; It is higher in the most important places and lower in the general area. The wall is the main part of the defense against the enemy, and its total thickness is wide, the width of the foundation is 6.5 meters, and the width of the floor on the wall is also 5.8 meters on average, so as to ensure that the two baggage wagons are parallel.

The wall is composed of an outer eaves wall and an inner eaves wall, and the interior is filled with earth and gravel. The eaves wall refers to the side of the outer skin wall facing the outside of the city. When constructing, there is a clear score, and the score is generally 25% of the wall height.

The score of the wall can increase the width of the lower part of the wall, enhance the stability of the wall, strengthen its defensive performance, and make the exterior wall majestic. The inner eaves wall refers to the outer skin wall in the city, there is generally no obvious score when constructing, and it is built into a vertical wall, about the thickness of the outer eaves wall, it is generally based on the thickness of the wall at the "battlement", the thickness here is generally one and a half bricks and a half, according to the proportion of the score, the deeper the thicker. The masonry method of bricks is mainly flat masonry.

The structural content of the wall is determined according to the local climatic conditions, and there are several types of construction methods for the Great Wall

1) Build a rammed earth wall.

2) Adobe walls.

3) Blue brick walls.

4) Stone walls.

5) Mixed masonry masonry.

6) Strip stone. The city wall is built by the method of brickwork, stone masonry, and mixed masonry, and when the terrain slope is small, the bricks or stones of masonry are parallel to the terrain, and when the terrain slope is large, the masonry is built by the method of horizontal fall.

Answer: This section of the Great Wall is steep and condescending, and it is an important military pass in the Ming Dynasty and an important barrier in the capital Beijing. The Badaling Great Wall is 6 9 meters high, trapezoidal in plane, 6 5 7 5 meters wide at the bottom, and 4 5 5 8 meters wide at the top. The top of most of the walls is wide and flat, and you can "ride five horses and ten people in parallel"; In the area of Qinglong Bridge, the mountain is steep and dangerous, the top of the wall is narrow, and the narrowest point is only more than 2 meters.

The center line of the city wall is biased towards the outside, with the outer wall high and the inner wall low. The two sides of the wall are wrapped with granite stone strips, the stone strips are 0 5 meters wide, 0 4 meters high, 0 8 1 meters long, the longest stone strip reaches 3 1 meters, weighs 1 5 1 7 tons, there are 43 enemy towers on the Badaling Great Wall, the shape is similar and each has its own characteristics, among them, there are the wall platforms for patrolling and sentry, there are also the enemy platforms of the upper and lower two layers, the upper layer is surrounded by battlements and shooting holes, and the lower layer is the house where soldiers stay and store materials. The distance of the fort depends on the mountain and the terrain.

Hope it helps.

The history of the Bada Bailing Great Wall is known as one of the nine stops in the world, which is the essence of the Great Wall of Wanli, and is unique and representative in the Great Wall of the Ming Dynasty. Badaling has a superior geographical environment and has been the main road to Shanxi, Inner Mongolia and Zhangjiakou since ancient times. The Badaling Great Wall is in Yanqing County, Beijing.

It is a pass of the Great Wall. Its Guancheng is the trapezoidal shape of the east narrow and the west wide, built in the eighteenth year of Ming Hongzhi (1505), Jiajing, Wanli years have repaired the mushroom. There are two gates in the east and west gates of the city, and the east gate is inscribed"Juyong is outside the town", engraved in the eighteenth year of Jiajing (1539); Simon forehead"North Gate Lock Key", engraved in the tenth year of Wanli (1582).

The two door versions are brick and stone structures, the coupon hole is the platform, the north and south of the platform have passages, connect the city wall, and the platform is surrounded by battlements. The Beijing-Zhangjiakou Highway passes through the city gate and is the throat to Beijing. from"North Gate Lock Key Right"On the left and right sides of the tower, the Great Wall of thousands of miles stretches out with ups and downs, twists and turns.

With a total length of 6,700 kilometers, the Great Wall is one of the oldest great structures in the world. Building structure As a defensive project, the Great Wall is mainly composed of three parts: passes, city walls, and beacon towers.

Do you mean construction or corporate cars?

1. The Great Wall is an important military defense project, and the length of history and the length of the building volume are the two basic characteristics of the Great Wall. In addition, the Great Wall has many other features, such as the fact that there are many ethnic groups living inside and outside the Great Wall, and the great miracle of the Great Wall was created by various ethnic groups.

2. The use time span is large. The process of the Great Wall from its inception to maturity is a long history. The construction, maintenance and military use of the Great Wall accompanied the Spring and Autumn Period and the Warring States Period to the Qing Dynasty for more than 2,000 years, and its maintenance and other uses have continued to modern times.

According to historical records, Chu was the first vassal state in Chinese history to build the Great Wall. According to historical data, the construction time of the Great Wall of Chu should be as early as 656 BC. According to archaeological data, the Great Wall of Qi was also produced very early, almost at the same time as the Great Wall of Chu.

Both Great Walls appeared in the Spring and Autumn Period of China, and are the first two sections of the Great Wall in Chinese history. This period coincided with the Spring and Autumn Period and the Warring States Period in Chinese history. Due to the annexation of the princes, Chu, Qin, Yan, Qi, Han, Zhao, Wei and other relatively strong appeared.

3. Large vassal states. These countries often have conflicting interests, and in order to defend each other, they build one or more tall walls on their territory. These walls are distributed in a linear pattern, rather than guarding the city and enclosed around it, and are often hundreds or thousands of kilometers long.

Around the 4th century BCE, in the process of annexation and counter-annexation, the need for attack and defense between vassal states increased, and the defense of the city walls gradually developed and improved.

4. It was around the 4th century BC that the Great Wall also began to become a means of adjusting the relationship between agriculture and nomads and the normal order of production and life. The Yan, Zhao, Qin and other countries are adjacent to the nomadic peoples such as the Donghu and the Xiongnu. Due to the expansion of the agricultural economy, the nomadic people were also in the stage of seeking group development, and the two sides competed for land, livestock and population in the northern frontier areas of the Yan, Zhao, and Qin kingdoms, seriously disrupting the normal production and living order in these areas.

On the basis of the reforms, the three kingdoms of Yan, Zhao, and Qin had a great development of economic strength, and launched large-scale military operations against the nomadic economic areas. After expanding the territory, the Great Wall was built in the north to defend the nomads Donghu, Xiongnu, Rong and other nomads from going south or east.