Rainbow Bridge is located in Group 9, Jingxi Village, Caojing Town, Jinshan District, Shanghai. It is a three-span beam bridge, also known as Hongqiao. It was built in the third year of Guangxu (1877).
The history of Rainbow Bridge is
Rainbow Bridge has a long history. It was built more than 800 years ago in the Southern Song Dynasty. It is the oldest and longest covered bridge in ancient Huizhou, and has been praised by many media as "one of the most beautiful covered bridges in China". The charm of Rainbow Bridge lies not only in the perfect combination of the bridge body with green hills, clear water, ancient villages and post roads, but also in the vitality of the building: the geographical location of the bridge is scientific and reasonable-it is built on the widest river; Semi-ship pier design to decompose flood impact force: according to the differential distribution of flood mainstream velocity between piers; Stone masonry method is strict and firm; The concept of bridge deck design is long-term, practical and easy for future generations to maintain, which fully embodies the philosophical thought that the simpler and more practical the craft, the easier it is to inherit and continue. After more than 800 years, it is still complete, simple, heavy and solid. The connection between Rainbow Bridge and Dengyun Bridge, one high, one short, one big and one small, explains the essence of ancient Huizhou bridge name culture: pray for good luck and development. The best state of life, whether studying, being an official, doing business or stepping on an auspicious rainbow, is so beautiful, so handsome and so glorious. The ingenious combination of the names of the two bridges is the ancient people's wishes and prayers to future generations. A pool of clear water under the bridge is named after Wen Peng and He Zhen, the founders of seal cutting school, boating here. Seeing the beautiful scenery here, Wen Peng happily wrote "Little West Lake" on the stone wall near the water. Thousands of years of water hammer workshops are still demonstrating that the ancients used water to drive the waterwheel to grind rice and flour. An unpretentious stone tablet (stone dam) has protected the ecological environment around the Rainbow Bridge for hundreds of years and is known as the "god of ecological protection". Rainbow Bridge is a scenic spot integrating culture and ecology, sports and tranquility, leisure and entertainment. There is a heavy bridge culture, historical relics, production tools left by the ancients and a good ecological and natural environment. It is a high-grade cultural eco-tourism area with the most Wuyuan characteristics.
Information about Rainbow Bridge, come on, come on! !
Looking at the rainbow bridge from a distance
Located in Tsinghua Town, it was founded in Song Dynasty. It was named after the Tang poem "Two Rivers Reflect in the Mirror, Two Bridges Fall in the Rainbow". Legend has it that on the day when the bridge was built, a rainbow hung in the blue sky, and the two scenes were comparable. The bridge is140m long and 7m wide, with corridors and benches on both sides. On both sides of the Rainbow Bridge, there are mountains like Dai and green water flowing under the bridge, which has a history of 800 years. Tsinghua, a thousand-year-old town where Rainbow Bridge is located, is rich in tourism resources. In addition to the Rainbow Bridge, there are Deng Yunqiao and the rice flour mill. She has a long history and was built in the Southern Song Dynasty, which has been 800 years since. It is140m long and consists of six pavilions and five corridors. A pavilion is built on each pier, and the span between piers is called corridor, so it is also called corridor pavilion bridge. 1. Remote file management {file management (including operation, upload, download, modification and operation of general files by Rainbow Bridge, etc.). )
Wait; File search (user-defined extension file search) 2. Remote system management (system information, process management, window management, password interception, uninstall, server upgrade, etc. 3. Remote screen viewing (mouse and keyboard control, saving to a file, etc.). ) 4. Remote camera view (saving to file is supported) 5. Remote DOS command (DOS command is used to add administrator account, etc. ) 6. Keyboard recording (including offline keyboard recording and online keyboard recording) 7. Get password (get memory, save, default password) 8. Change the victim's name 9. Copy IP (copy IP).
How about Wuyuan Rainbow Bridge Tourist Area?
Rainbow Bridge, an ancient bridge built in Song Dynasty, is the masterpiece of Wuyuan covered bridge. The so-called covered bridge is a kind of covered bridge. This bridge is not only beautiful in appearance, but most importantly, it can provide a resting place for pedestrians in rainy days. Rainbow Bridge is praised by the media as the most beautiful covered bridge in China, and it is a provincial key cultural relic. It has a long history and was built in the Southern Song Dynasty, with a history of 800 years.
Rainbow Bridge length140m. This is a footbridge consisting of six pavilions and five corridors. A pavilion is built on each pier, and the span between piers is called corridor. So it is also called Langting Bridge. From a distance, the pavilion is slightly higher than the corridor, forming a patchwork. In order to facilitate maintenance, the whole bridge is divided into parts, and each pavilion and corridor is independent. In this way, the whole bridge will not be affected by a fault, and the design is very scientific. Among them, the pier is the most exquisite part of the whole ancient bridge, which embodies the simple and heavy artistic style and has a strong sense of historical accumulation.
The scenery around the Rainbow Bridge is beautiful, with beautiful green hills and clear water. Sitting here for a short rest and browsing the surrounding scenery will make people deeply appreciate the beauty of Wuyuan.
More about Wuyuan Rainbow Bridge Tourist Area
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Information about Chengdu Rainbow Bridge!
Chengdu Rainbow Bridge, formerly known as Liu Yin Bridge, is the Nanhe Bridge on the south extension line of Dongcheng Gen Street. Built in 1996. Single-hole reinforced concrete ribbed arch bridge. This bridge is designed with three arch ribs. The main color of the arch rib is big red, like a rainbow, shining far into the eyes. Pedestrians used to call it "Rainbow Bridge".
References:
Chengdu literature
The history of Wuhe Rainbow Bridge
First of all, the history of Rainbow Bridge is
Rainbow Bridge has a long history. It was built more than 800 years ago in the Southern Song Dynasty. It is the oldest and longest covered bridge in ancient Huizhou, and has been praised by many media as "one of the most beautiful covered bridges in China".
The charm of Rainbow Bridge lies not only in the perfect combination of the bridge body with green hills, clear water, ancient villages and post roads, but also in the vitality of the building: the geographical location of the bridge is scientific and reasonable-it is built on the widest river; Semi-ship pier design to decompose flood impact force: according to the differential distribution of flood mainstream velocity between piers; Stone masonry method is strict and firm; The concept of bridge deck design is long-term, practical and easy for future generations to maintain, which fully embodies the philosophical thought that the simpler and more practical the craft, the easier it is to inherit and continue. After more than 800 years, it is still complete, simple, heavy and solid.
The connection between Rainbow Bridge and Dengyun Bridge, one high, one short, one big and one small, explains the essence of ancient Huizhou bridge name culture: pray for good luck and development. The best state of life, whether studying, being an official, doing business or stepping on an auspicious rainbow, is so beautiful, so handsome and so glorious.
The ingenious combination of the names of the two bridges is the ancient people's wishes and prayers to future generations. A pool of clear water under the bridge is named after Wen Peng and He Zhen, the founders of seal cutting school, boating here. Seeing the beautiful scenery here, Wen Peng happily wrote "Little West Lake" on the stone wall near the water.
Thousands of years of water hammer workshops are still demonstrating that the ancients used water to drive the waterwheel to grind rice and flour. An unpretentious stone tablet (stone dam) has protected the ecological environment around the Rainbow Bridge for hundreds of years and is known as the "god of ecological protection". Rainbow Bridge is a scenic spot integrating culture and ecology, sports and tranquility, leisure and entertainment.
There is a heavy bridge culture, historical relics, production tools left by the ancients and a good ecological and natural environment. It is a high-grade cultural eco-tourism area with the most Wuyuan characteristics.
2. Introduction and history of Nanchong Rainbow Bridge
Rainbow Bridge is praised by the media as the most beautiful covered bridge in China, and it is a provincial-level key protected cultural relic.
It has a long history. Built in the Southern Song Dynasty, it has been 800 years since. The total length of Rainbow Bridge is140m, and the promenade footbridge consists of six pavilions and five corridors. A pavilion is built on each pier, and the span between piers is called corridor, so it is also called corridor pavilion bridge.
From a distance, the pavilion is slightly higher than the corridor, forming a patchwork. Rainbow Bridge is named after the meaning of "two water mirrors, two bridges fall into a rainbow" in the Tang Dynasty. In order to facilitate maintenance, the whole bridge is divided into parts, and each pavilion and corridor is independent. In this way, the whole bridge will not be affected by a fault, and the design is very scientific.
Among them, the pier is the most exquisite part of the whole ancient bridge, which embodies the simple and heavy artistic style and has a strong sense of historical accumulation.
Third, the history of Rainbow Bridge is
Rainbow Bridge has a long history. It was built more than 800 years ago in the Southern Song Dynasty. It is the oldest and longest covered bridge in ancient Huizhou, and has been praised by many media as "one of the most beautiful covered bridges in China".
The charm of Rainbow Bridge lies not only in the perfect combination of the bridge body with green hills, clear water, ancient villages and post roads, but also in the vitality of the building: the geographical location of the bridge is scientific and reasonable-it is built on the widest river; Semi-ship pier design to decompose flood impact force: according to the differential distribution of flood mainstream velocity between piers; Stone masonry method is strict and firm; The concept of bridge deck design is long-term, practical and easy for future generations to maintain, which fully embodies the philosophical thought that the simpler and more practical the craft, the easier it is to inherit and continue. After more than 800 years, it is still complete, simple, heavy and solid.
The connection between Rainbow Bridge and Dengyun Bridge, one high, one short, one big and one small, explains the essence of ancient Huizhou bridge name culture: pray for good luck and development. The best state of life, whether studying, being an official, doing business or stepping on an auspicious rainbow, is so beautiful, so handsome and so glorious.
The ingenious combination of the names of the two bridges is the ancient people's wishes and prayers to future generations. A pool of clear water under the bridge is named after Wen Peng and He Zhen, the founders of seal cutting school, boating here. Seeing the beautiful scenery here, Wen Peng happily wrote "Little West Lake" on the stone wall near the water.
Thousands of years of water hammer workshops are still demonstrating that the ancients used water to drive the waterwheel to grind rice and flour. An unpretentious stone tablet (stone dam) has protected the ecological environment around the Rainbow Bridge for hundreds of years and is known as the "god of ecological protection". Rainbow Bridge is a scenic spot integrating culture and ecology, sports and tranquility, leisure and entertainment.
There is a heavy bridge culture, historical relics, production tools left by the ancients and a good ecological and natural environment. It is a high-grade cultural eco-tourism area with the most Wuyuan characteristics.
Fourthly, the length and width of the rainbow bridge in history and culture, that is, the rainbow bridge.
The world-famous waterfalls mainly include Niagara Waterfall, Victoria Waterfall, Iguazu Waterfall, Angel Waterfall, Huangguoshu Waterfall and Hukou Waterfall.
Niagara Falls is located between Lake Erie and Lake Ontario, separated by Goat Island, and belongs to Canada in the west. The great waterfall is also called horseshoe waterfall because of its horseshoe shape.
The sound of waterfalls is deafening, and the water vapor is vast and towering. When the sun is shining, the splash of the waterfall will raise seven colors of rainbow.
In winter, there will be a thin layer of ice on the surface of the waterfall, and then the waterfall will be quieter. There is a sightseeing boat downstream of the waterfall for tourists to visit. The name of the ship is also very meaningful. It's called Missing in the Fog. She can take you through the choppy waterfalls, so that you can really be in the confusing water mist, enjoy the thrilling sound of the waves and accept the baptism of nature.
Victoria Falls is located in the middle reaches of Zambezi River in Africa, and Zambia borders Zimbabwe. The waterfall is 1700 meters wide and the highest point 108 meters, which is twice as wide and twice as high as Niagara Falls.
The average annual flow is about 934 cubic meters per second. The Zambezi River flows slowly before it reaches the waterfall. When the waterfall falls, it sounds like thunder. Local residents call it "Mosio Tunia" (meaning "fog of lightning").
The water from Victoria Falls flows into a canyon with a width ranging from 25 meters to 75 meters. Iguazu Falls is located on the Iguazu River on the border between Argentina and Brazil.
This is a horseshoe waterfall, 82 meters high and 4 kilometers wide, which is four times as wide as Niagara Falls and much wider than Victoria Falls. There are many rocky islands with trees on the edge of the cliff, which makes the Iguazu River fall into about 275 rapids or waterfalls with heights ranging from 60 meters to 82 meters.
In rainy season, the maximum flow of the waterfall can reach 12750 m3/s, and the average annual flow is about 1756 m3/s Angel Waterfall, also known as Chulun Meru Waterfall, is located on the Chulun River, a tributary of the Caroni River in Guyana Plateau, Bolivarian State of Venezuela.
The waterfall flows down from the flat-topped plateau Oyantep Yi Shan, barely touching the cliff surface. Once it falls to the ground, its drop is 979 meters, making it the highest waterfall in the world. The waterfall is in the deep mountains and forests, which was originally unknown. It was discovered by American explorer Angel in the flight of 1935, hence its name.
Huangguoshu Waterfall is located on Baishui River in Zhenning Buyi and Miao Autonomous County, Guizhou Province. When Baishui River flows through the local area, the riverbed breaks into nine waterfalls, and Huangguoshu is the largest one. The waterfall is about 80 meters wide, with a drop of 66 meters. At the peak, the flow reaches more than 2,000 cubic meters per second.
It is famous for its huge water potential and is one of the world-famous waterfalls. The cliff behind the waterfall caved into a hole more than 20 meters deep. The cave is covered with waterfalls all the year round, so it is called "water curtain cave". Here you can see the strange sight of waterfalls flying down.
Hukou Waterfall is located between Yichuan County of Shaanxi Province and Jixian County of Shanxi Province. The Yellow River broke through the gate of Shaanxi in Pianguan Laoniuwan, and then turned to the south, like a sword to split the Qin Jin Plateau in half, leaving a deep canyon. The valley of 250 meters has become 30 meters.
When the Yellow River flows here, the channel narrows sharply. At this time, the river was rushing, with a scream, and fell into a deep pool with a drop of about 30 meters. The mountain sounds like a huge pot boiling, hence the name "Hukou Waterfall". Angel Waterfall, also known as Chulun Meru Waterfall, is the largest waterfall in the world, with a drop of 979 meters, which is 18 times that of Niagara Waterfall.
Located on the Chulun River, a tributary of the Caroni River in Guiana Plateau, Bolivarian State of Venezuela. Iguazu Waterfall, the widest waterfall in the world, is horseshoe-shaped, 82 meters high and 4000 meters wide. It is the widest waterfall in the world, with an average flow of 65,438+0,700 cubic meters per second, and the water volume ranks sixth in the world.
The world's largest waterfall group-Kowloon Waterfall Group 1, Niagara Falls Niagara Falls is located on the Niagara River at the junction of Canada and the United States. Gothic Island in the river divides the waterfall in two. The larger part is Hoshu Waterfall, which is 56 meters high and 670 meters long, near the Canadian side, and the smaller part is Americana Waterfall, which is 58 meters high and 320 meters wide, next to the American side. The formation of Niagara Falls and its scoured Niagara Canyon has special geological conditions, in which the shale is washed away by water continuously, making the waterfall move upstream on average 1842 to 1905.
In order to protect waterfalls, the United States and Canada spent a lot of money to build some control projects to reduce the erosion of rocks by waterfalls. 2. Victoria Falls Victoria Falls is located in the middle reaches of the Zambezi River in Africa, and Zambia borders Zimbabwe.
The waterfall is 1700 meters wide and the highest point 108 meters, which is twice as wide and twice as high as Niagara Falls. The average annual flow is about 934 cubic meters per second.
The Zambezi River flows slowly before it reaches the waterfall. When the waterfall falls, it sounds like thunder. Local residents call it "Mosio Tunia" (meaning "fog of lightning"). The water from Victoria Falls flows into a canyon with a width ranging from 25 meters to 75 meters.
3. Iguazu Waterfall Iguazu Waterfall is located on the Iguazu River on the border between Argentina and Brazil. This is a horseshoe waterfall, 82 meters high and 4 kilometers wide, which is four times as wide as Niagara Falls and much wider than Victoria Falls.
There are many rocky islands with trees on the edge of the cliff, which makes the Iguazu River fall into about 275 rapids or waterfalls with heights ranging from 60 meters to 82 meters. 165438+ During the rainy season from 10 to March of the following year, the maximum discharge of the waterfall can reach 12750 m3/s, with an average annual rate of about1756m3/s. ..
Other famous waterfalls (1) Angel Waterfall: Located in Venezuela, it is the largest waterfall (979 meters) in the world. (2) Tugla Waterfall in Southern Africa (3) Kalambo Waterfall between Tanzania and Zambia (4) yosemite falls in California (5) Lacook South Waterfall in Guyana and Venezuela (6) Thornland Waterfall in New Zealand (7) Wolomonby Waterfall in New South Wales, Australia (8) Simandola Waterfall in Norway (9) East Madola Waterfall in Norway (10
The largest waterfall in India. (12) Iguazu Waterfall: Located 23km upstream of the intersection of Iguazu River and parana river on the Argentine-Brazilian border, it is the largest waterfall in South America.
(13) Konggen Waterfall: Located on the Mekong River in Chambazhai Province, Laos, it is 9.7 kilometers wide and is the largest flowing water in the world.
5. How old is Gongxian Rainbow Bridge?
Gong County, a county under the jurisdiction of Yibin City, Sichuan Province. Located in the south of Yibin City, between east longitude10438 ′-10502 ′ and north latitude 27 53 ′-28 31′, bordering Gaoxian County in the north and 46 kilometers away from Cuiping District of Yibin City. South of Daxueshan, 69 kilometers away from Weixin County, Yunnan Province; It borders Junlian County in the west, Xingwen County and Changning County in the southeast and northeast. [1] Chang Xun, the resident of county * * *, is 56km away from the resident of city * * *. [ 1]
There are trunk highways connecting Yunnan, Guizhou and Sichuan provinces, such as Xugao Highway, Yun Chuan Highway and Yiwei Highway, and Chenggong Railway and Jinyun Railway run through the county territory, which is an important transportation hub and material distribution center in the south of Yibin City. [1] The high-grade cement road goes directly to Yibin City, and Yibin Airport and Yangtze River Shipping Terminal can be reached within 1 hour.
Gongxian County is an important base of energy, building materials and chemical industry in Sichuan Province. It stores anthracite12150,000 tons, pyrite 226 million tons and quartz sand 47 million tons. In addition, there is Shangluo Town, the first town in China that uses shale gas. [2] Gong County is an important part of Yibin half-hour economic circle at the junction of Sichuan, Yunnan and Guizhou, with a forest coverage rate of 43.68% and a green coverage rate of 47.28%. It is the first mountainous county around the basin in Sichuan Province to reach the green standard.
Gong County has a national key cultural relics protection unit "_ hanging coffin" [3]. Known as "verve _ capital, throat town". In 20 13, the GDP of Gongxian county reached1049.9 billion yuan, an increase of 8.8% over 20 12.
Sixth, the history of Xinyang Rainbow Bridge.
Rainbow Bridge is located in Xinyang 107 national highway. Built in 198 1.
Rainbow Bridge has scientific design and beautiful shape. It is a cable-stayed bridge with a total length of over 300 meters and a main span of over 1.85 meters. It is supported by two red semi-circular main cables across the river. The two main cables are connected by connecting beams, and the bridge deck structure is pulled up by straight cables. The straight cable is perpendicular to the bridge deck, and the top end is fixed on the semi-circular main cable, which connects the whole bridge into a whole.
The bridge deck is 29.4 meters wide and has four lanes in both directions. The main cable is red. At night, the lanterns on the bridge are red, green and yellow. From a distance, the whole bridge is colorful, just like a rainbow across the river, hence the name Rainbow Bridge.
At night, the shadow of the rainbow bridge is reflected on the river, and with the waves rippling gently, people seem to be in a fairyland on earth. Rainbow Bridge, known as the first bridge in Asia, is a landmark building on Xinyang River.
Everyone who travels to Xinyang should see its style.
Seven. The origin of rainbow bridge
1. Name source
During the construction process, many literati in Tsinghua Village wanted to give the bridge a meaningful name. Wuyuan people don't like to simply name the bridge after the land name since ancient times. Almost all ancient bridges have beautiful meanings. Rainbow Bridge is no exception. Many people gave her different names, and none of them were recognized by the villagers. The name of the bridge is almost finished, and the last few tiles are sealed. In the evening, a bright rainbow appears behind the mountain in the west, and the sunset is reflected in the water through the clouds, forming a beautiful landscape painting. At that time, Hu Jixiang and Hu saw this scene and thought it was a good sign. They immediately let the villagers set off firecrackers to celebrate. In Tsinghua people's mind, the rainbow is a symbol of auspiciousness and beauty. Almost everyone thinks that the name of this bridge is the most appropriate, and it has been called today. In order to commemorate the two ancestors, later generations set up a shrine in Zhongting to show that they will never forget. On the right is the throne of the fundraising monk Hu Jixiang, on the left is the throne of the founding head of state Hu, and in the middle is the throne. Why did Yu Wang's memorial tablet stand here? The local people think that Yu Wang is a narcissus from Zhenshui and the ancestor of Hu family. With him, he can control floods and protect ancient bridges.
Step 2 introduce
Wuyuan has a very distinctive bridge-Rainbow Bridge (covered bridge). The so-called covered bridge is a kind of covered bridge. This bridge is not only beautiful in appearance, but most importantly, it can provide a resting place for pedestrians in rainy days. Rainbow Bridge, an ancient bridge built in Song Dynasty, is the masterpiece of Wuyuan covered bridge. This bridge is named after the Tang poem "Two Rivers Reflect in the Mirror, Two Bridges Fall in the Rainbow". The bridge length is 140m, the bridge deck is more than 3m wide, with 4 piers and 5 holes. It consists of 1 1 pavilions, stone tables and benches. The scenery around the Rainbow Bridge is beautiful, with beautiful green hills and clear water. Sitting here for a short rest and browsing the surrounding scenery will make people deeply appreciate the beauty of Wuyuan.
3. Structure
The wooden part of rainbow bridge deck is designed and considered from the continuity and long-term of the bridge. Do it from the perspective of economy, firmness, durability and easy maintenance. At first glance: the structure is simple, the workmanship is rough, the tenon gap is large, and the corridor is not in a straight line. It shows that the requirements for carpenters are not high, and they are made by ordinary carpenters. The advantage of this is that the bridge is broken, carpenters can be found at any time, and the price is the lowest. Like the houses and ancestral temples of the rich in Wuyuan, they were magnificent when they were built, and now they have financial resources. It is difficult to find a skilled craftsman in maintenance, and it can only disappear with history. But the bridge can't be like this, and generations of children have to go. Therefore, the builders of the bridge took great pains to keep the bridge intact to this day. Although it was built by ordinary carpenters, it embodies the artistic style of simplicity and heavy sense of history. For the convenience of maintenance, the whole bridge is divided into several parts, and each pavilion and corridor is independent, so such a fault will not affect the whole bridge. The fastening between the tenons of Rainbow Bridge does not need nails, and all of them use wooden nails. The use of wooden nails is low in cost and easy to process. Nails for bridge construction are easy to rust and combine with wood. When people walk on the bridge, the bridge will vibrate, nails will wear wood, and the bridge will easily loosen. Nailed with wood, wood has the same property. In vibration, the expansion is the same. After decades, the tenon is still tight and firm. This bridge is made up of four old pine trees over a hundred years old, which are covered with boards for people to walk on. The wooden part of the bridge deck can only be preserved for hundreds of years, so the Rainbow Bridge has been maintained for several generations. After liberation, the last maintenance was in 1985.
4. Design conception
Rainbow Bridge is praised by the media as the most beautiful covered bridge in China, and it is a provincial-level key protected cultural relic. She has a long history and was built in the Southern Song Dynasty, which has been 800 years since. It is140m long and consists of six pavilions and five corridors. A pavilion is built on each pier, and the span between piers is called corridor, so it is also called corridor pavilion bridge. From a distance, the pavilion is slightly higher than the corridor, forming a patchwork. The biggest feature of Rainbow Bridge is that its design is very scientific. First, the pier is like a half-boat, with a sharp front and a flat back, which is streamlined and can decompose the impact of flood on the pier. It is because of scientific design that the ancient bridge can be preserved today. The highest water level recorded in history was close to the bridge deck, when floods raged. If the pier head had been flat, the bridge would have been destroyed by the flood. Understanding this piece depends on the bridge in the historical era, when there was almost no foundation for building a bridge. Stone arch bridge is difficult to build because of its long span. Second, the distance between piers is not equal. The maximum span between piers is twelve meters eight, and the minimum span is nine meters eight, with a difference of three meters. This design is determined according to the flood trend in flood season. The main stream passes through the pier with a long distance, which is beneficial to flood discharge and has little influence on the pier; Where the water flow is gentle, the distance between piers is small, and the influence of flood is relatively small. Third, the masonry method between stones is exquisite. The piers are clamped together with stone strips of different sizes, and the gap is very small and the combination is very firm. This is because the pier is filled with sand and gravel. Once cracks appear in the stone, it will be hit by floods for many years, and it is easy to enlarge the hole. When the sand and gravel are emptied, the pier will collapse. It is difficult to build a pier, and the maximum water depth of the pier is four or five meters. Under the backward production conditions at that time, it was very difficult to clear the rock foundation and build hundreds of kilograms or tons of stones. More than a dozen agricultural water trucks are needed to pump water around the clock to remove stones. Therefore, the original builders wanted to finish the pier and would never rebuild it once and for all. The pier is the most exquisite part of the whole ancient bridge.