I. History of Rainbow Bridge 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 convenient for future generations to maintain, which fully embodies the philosophical thought that the simpler the technology, the more practical it is, the easier it is to inherit and continue. After more than 800 years, it is still complete, simple and heavy. The connection between Rainbow Bridge and Dengyun Bridge, one high and 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 it is studying, being an official or doing business ... is to climb the clouds, set foot on an auspicious and beautiful rainbow and achieve something. What beautiful scenery, unique and glorious ancestors. 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 the founders of seal cutting school, Wen Peng and He Zhen, 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. It is the most upscale cultural eco-tourism area with Wuyuan characteristics, with rich bridge culture, historical relics and production tools left by the ancients, and a good ecological environment. 2. Introduction and history of Nanchong Rainbow Bridge Rainbow Bridge is praised by various media as the most beautiful covered bridge in China, which is a provincial key cultural relic. She has a long history. Built in the Southern Song Dynasty, it has been 800 years since. Rainbow Bridge 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 trend. Rainbow Bridge is named after the meaning of "two water mirrors, two bridges fall into a rainbow" in Tang poetry. In order to facilitate maintenance, the whole bridge is divided into parts, and each pavilion and corridor is independent. So 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. 3. History of Rainbow Bridge 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 convenient for future generations to maintain, which fully embodies the philosophical thought that the simpler the technology, the more practical it is, the easier it is to inherit and continue. After more than 800 years, it is still complete, simple and heavy. The connection between Rainbow Bridge and Dengyun Bridge, one high and 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 it is studying, being an official or doing business ... is to climb the clouds, set foot on an auspicious and beautiful rainbow and achieve something. What beautiful scenery, unique and glorious ancestors. 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 the founders of seal cutting school, Wen Peng and He Zhen, 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. It is the most upscale cultural eco-tourism area with Wuyuan characteristics, with rich bridge culture, historical relics and production tools left by the ancients, and a good ecological environment. Four. Historical and Cultural Length of Rainbow Bridge The world-famous waterfalls mainly include Niagara Waterfall, Victoria Waterfall, Iguazu Waterfall, Angel Waterfall, Huangguoshu Waterfall and Hukou Waterfall. Niagara Falls lies between Lake Erie and Lake Ontario. Goat Island is separated by waterfalls and belongs to Canada in the west. The great waterfall is also called horseshoe waterfall because of its horseshoe shape. The waterfall is deafening, and the water vapor is vast and towering into the sky. 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 width of the waterfall is over1700m, and the highest point is108m, which is twice as wide and twice as high as Niagara Falls. The average annual flow is about 934 cubic meters per second. Zambezi River flows slowly before reaching the waterfall, and the waterfall makes a thunderous sound when it falls. Local residents call it "MosioTunia" (meaning "fog of thunder and 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 that of 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 the rainy season, the maximum flow of the waterfall can reach 12750 cubic meters per second, and the average annual flow is about 1756 cubic meters per second. Angel Waterfall, also known as Chulun Meru Waterfall, is located on Chulun River, a tributary of Caroni River in Guiana Plateau, Bolivarian State of Venezuela. The waterfall flows down from the flat-topped plateau OyantepYiShan, hardly touching the steep cliff surface. Once it falls to the ground, the drop reaches 979 meters, making it the highest waterfall in the world. This little-known waterfall in the deep forest was discovered by American explorer Angel in flight in 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, its riverbed breaks into nine waterfalls, of which Huangguoshu Waterfall is the largest. The waterfall is about 80 meters wide with a drop of 66 meters. At the peak, the flow rate reaches more than 2000 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 collapsed into a hole more than 20 meters deep. There are many waterfalls in the cave 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 two, leaving a deep canyon. The valley of 250 meters has become 30 meters. The Yellow River flows through here, and 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 Guyana Plateau, Bolivarian Republic 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 1700 cubic meters per second, and the water volume ranks sixth in the world. The largest waterfall group in the world-Jiulong Waterfall 1. Niagara Falls Niagara Falls is located on the Niagara River at the junction of Canada and the United States. Gott Island in the river divides the waterfall in two. Most of them are Huoshu Waterfalls, 56 meters high and 670 meters long, near the Canadian side, and a few are American Waterfalls, near the American side. The formation of Niagara Falls and its scouring Niagara Gorge has special geological conditions, in which shale is constantly scoured by water, making the waterfalls 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 width of the waterfall is over1700m, and the highest point is108m, which is twice as wide and twice as high as Niagara Falls. The average annual flow is about 934 cubic meters per second. Before Zambezi River reached the waterfall, the current was slow, but when the waterfall fell, it was like thunder. Local residents call it "MosioTunia" (meaning "fog of thunder and 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 that of 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. /kloc-in the rainy season from October to March of the following year, the maximum flow of the waterfall can reach 12750 cubic meters per second, and the average annual flow is about 1756 cubic meters per second. Other famous waterfalls (1) Angel Waterfall: Located in Venezuela, it is the largest waterfall (979 meters) in the world. (2) Tugra Waterfall in Southern Africa (3) Kalambo Waterfall between Tanzania and Zambia (4) yosemite falls in California (5) Lacanan 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). (12) Iguazu Waterfall: Located 23km upstream of the intersection of Iguazu River and parana river on the Argentine-Brazil 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 has the largest flowing water in the world. How old is Hongqiao in Gongxian County? Gong County is a county under the jurisdiction of Yibin City, Sichuan Province. It is located in the south of Yibin City, between east longitude10438 ′-10502 ′, north latitude 27 53 ′-28 31′, bordering Gaoxian County in the north, 46 kilometers away from Cuiping District of Yibin City. South of Daxue Mountain, 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] County * * * is located in Chang Xun, 56 kilometers away from the city * * * resident. 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, which is an important transportation hub and material distribution center in the south of Yibin City. 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 energy, building materials and chemical base in Sichuan province, with anthracite12150,000 tons, pyrite 226 million tons and quartz sand 47 million tons. In addition, there is Shangluo Town, the first town in China to use 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 "Gelao people hanging coffins" [3], which is known as "the charm of the capital and the town of throat". In 20 13, Gongxian's GDP reached1049.9 billion yuan, an increase of 8.8% over 20 12. 6. The historical rainbow bridge of Xinyang is located on the Shihe River of Xinyang City 107 National Road, and was built in 198 1. Rainbow Bridge has scientific design and beautiful shape. It is a cable-stayed bridge with a total length of more than 300 meters and a main span of 185 meters. It is supported by two red semi-circular main cables across the Stone River. The two main cables are connected by connecting beams, and the bridge deck structure is pulled up by straight cables, which are vertical to the bridge deck, and the top ends are fixed on the semi-circular main cables, thus connecting 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, 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 gentle ripples of the water waves, 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. The origin of the name During the construction process, many literati in Tsinghua Village wanted to give the bridge a meaningful name. Wuyuan people don't like to name the bridge simply by the name of the land 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 appeared behind the mountain in the west, and the sunset was 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 good luck and beauty. Almost everyone thinks that the name of this bridge is the most appropriate, and it has been called today. In memory of these two ancestors, later generations set up a shrine in Zhong Ting to show that they will never forget it. On the right is the monk Hu Jixiang, on the left is the founder Hu, and in the middle is. Why did Yu Wang's memorial tablet stand here? The local people think that King Yu is the immortal of Zhenshui and the ancestor of Hu family. With him, he can control floods and protect ancient bridges. 2. Introduction Wuyuan has a very distinctive bridge-Rainbow Bridge (covered bridge). The so-called covered bridge is a covered bridge. The bridge is not only beautiful in appearance, but also the most important thing is that it can be used for pedestrians to rest 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". Bridge length140m, deck width over 3m, 4 piers and 5 holes. It consists of 1 1 galleries with stone tables and benches. The scenery around the Rainbow Bridge is beautiful, with green hills like flowers and clear water like washing. Sitting here for a short rest and browsing the surrounding scenery will make people deeply appreciate the beauty of Wuyuan. 3. The wooden part of the structural rainbow bridge deck is designed from the perspective of 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. Explain that the requirements for carpenters are not high, and they are made by ordinary carpenters. The advantage of this is that if the bridge is broken, you can always find a carpenter at the lowest price. 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 this bridge have painstakingly preserved this bridge 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. Each exhibition hall and corridor is independent and will not be affected by faults. The fastening between the tenons of Rainbow Bridge does not need nails, and all of them use wooden nails. The use of wooden nails has low cost and convenient processing. Nails used in bridge construction are easy to rust and combine with wood. People walking on the bridge will vibrate, nails will wear wood, and the bridge will easily loosen. Nail with wood, and wood has the same properties. 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. The last maintenance after liberation was at 1985. 4. Design concept 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 can break down the impact of flood on the pier. It is because of scientific design that this ancient bridge can be preserved today. The highest water level recorded in history was close to the bridge deck, when floods raged. If the piers were 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. It is very difficult to build a long-span stone arch bridge. 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 for 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 impact of flood is relatively small. Third, pay attention to the masonry method between strips. The piers are clamped together with stones 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 very difficult to build piers, and the maximum water depth of piers is four to 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 repairing the pier and never rebuild it again, so as to achieve the goal once and for all. The pier is the most exquisite part of the whole ancient bridge.