Dujiangyan water conservancy project in the Chengdu Plain is located in the western part of the middle reaches of the Minjiang River, is located in the western city of Dujiangyan, the world so far, the oldest age, the only retained, with the characteristics of the dam for water-scale water conservancy projects. Over the years 2200, which is still used in a row, still play a huge benefit. So that the Chengdu Plain to become "water From "the" land of abundance. "
Yangtze River upper reaches of the Minjiang River is a tributary of the larger, originated in the northern mountains of Sichuan. Every spring and summer flash floods, river and the Pentium, Guanxian from entering the Chengdu Plain, the river due to the narrow, ancient, often caused by the floods, a flood back, the sand is a thousand miles The Minjiang River on the east coast of Guanxian Yu Leishan also impede the east of the river, causing floods east of the West dry. 51 Zhaoxiang Wang Qin, Shujun Li Bing Ren Prefecture, for the benefit of the people, rule out the possibility of suffering from floods, presided over the construction of the famous Dujiangyan irrigation.
Dujiangyan project is the main body of Minjiang River water will be divided into two, one Article flow into the Chengdu Plain, which can flood mitigation, and reached the Tin Shui Guan cited, the change Wei harm. Then another into the Yangtze River. The main part of the Dujiangyan irrigation canal head for the Dujiangyan project, the Dujiangyan irrigation system is the most critical, most important facilities. Dujiangyan project head from the fish head of the main points Embankment, spillway weir Fei Sha Po bottle and drainage project has three major components. Its scientific solution to the automatic diversion of river water, sediment automatically control the water flow and other issues, both three-phase, take care of each other, totally natural, south-pointing carriage.
Water fish head is located in the embankment to the top of the middle reaches of the Minjiang River. It will Teng from the Minjiang into two, Jiang outside the original river bed, streams for irrigation drainage, which reflects the trick at 2:00. One is the use of its river streams dry season low and 60 percent water, Jiang outside the wide river bed, flooding 60 percent of flood season. The so-called "46 hours, heavy rain-dry" This is the reason. Second, fish head In the middle reaches of the Minjiang River at the end of the first bend, the clever use of the turn of the natural law of fluid mechanics, that is, the surface water into the concave bank, the lower water flows into the convex bank. As a result gravel content of less surface water into natural streams, and the water is the bottom bend of the River along the coast convex squeeze out Jiang, most of the sand will be rolled out along the river , Shen stay. The so-called "46 flood diversion and sediment on February 8," said this is the reason.
When the fish head into the river streams, the Pentium river flows will be ready to Chengdu Plain. How to control the unruly Minjiang that wild?
Fei Sha Dujiangyan Weir is one of the three major elements, look ten Ordinary, in fact, it is the function of any project can not be replaced, it can be said to ensure that the Chengdu Plain is not subject to flood the key point. Feisha the weir height of just over 2.15 meters Neijiang bed, and its role as the main streams of water over the bottle flow Bao limit, the excess water to overflow weir from Feisha ; If they flood emergencies, it will breach its own, so that a large number of Minjiang river is the return flow. Another is the role of the "Fei Sha" clever use of centrifugal force and the role of head of the top-dragging effect will be brought about by the upper reaches of the sand and gravel, and even the huge stone weighing hundreds of kilograms, from outside into the River, to ensure that Jiang's smooth, there was something fishy about the martial art ax effect.
Bao is a bottle from a manual cut-Gap, Yu Leishan be split into two, during which only 20 meters left of the inlet, within 100 meters from the river's width of the river Po into the bottle, the water level and flow at great speed off season , The peak season is on the rise, not control the water flow Climbing off a door Chung, the Chengdu Plain will be suffering from devastating floods. The design here Weir Fei Sha Po bottle with each other, it's more than just a high degree of Neijiang bed 2.15 meters. This means that when the water level 2.15 meters Neijiang, the waves would Feisha raging overflow weir. Bao bottle into the water will have to be always in a Almost constant on the balance. From then on the Chengdu Plain, who are also safe for irrigation, here's the good is also skillfully.
To commemorate the people of Sichuan, Li Bing and his son built the Second Temple. Second Temple was originally called the "Temple Zonta," Li Bing, meaning water power, people admired his favor. Song and Yuan dynasties, Li Bing Chi Feng Wang for the child after another, the temple will be replaced by Zonta Second Temple. Since then, Li Bing Jing Shu People such as the gods. The existing building for the rehabilitation of the Qing Dynasty.
Over the years 2000, Li Bing and his son away from the cutting of reactor, the weir to Drainage construction of the building project derived from the land of abundance has brought the world the respect and gratitude, the Second Temple in ancient times not only Shannon Its peak, and has been in the history of the official ceremony, as well as the civil and religious activities. Li Bing and his son formed a theme of the annual Chinese New figures on June 24 and June 26 as the center of the temple activities.
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