The Three Gorges Hydropower Station is owned by China Yangtze Power Co., Ltd. The Three Gorges is made up of Qutang Gorge, Wu Gorge and Xiling Gorge. The Three Gorges Hydroelectric Power Station is located on the main stem of the Yangtze River, between Chongqing, China, and Yichang, Hubei Province. The dam is located in Sandouping, not far upstream from Yichang City, and forms a cascading power station with the Gezhouba Hydroelectric Station downstream. It is the world's largest hydroelectric power station and the largest engineering project ever built in China.
The dam of the hydroelectric power station is 185 meters high, the reservoir is 175 meters high, and the reservoir is more than 600 kilometers long. It is equipped with 32 hydroelectric units with a single capacity of 700,000 kilowatts. It is the largest hydroelectric power station (installed capacity) in the world. In Julylt 2010, the units of the Three Gorges Power Plant achieved the 168-hour operation test target of the power plant with a total output of 18.2 million kilowatts. The Three Gorges Dam can withstand floods of this intensity mainly because it adopts the safest gravity dam configuration, made of 4 million tons of concrete. Even low-power nuclear bombs cannot damage it. can be repaired directly. It will collapse in all areas.
Can be used for over 500 years.
1. The Three Gorges Dam is located in Yichang City, Hubei Province, China, 38 kilometers from the downstream Gezhouba Water Conservancy Project. Today it is the largest hydroelectric project in the world - the main project of this project. the Three Gorges hydroelectric power station and the Three Gorges Dam Tourism The cen landscapetral of the region and the eastern end of the Three Gorges reservoir.
The Three Gorges Dam project includes the main building and the diversion project, with a total length of about 2,308 meters and a dam height of 185 meters. The total investment in the project is 95.46 billion yuan. officially started on December 14, 1994. , the entire line was successfully constructed on May 20, 2006.
With the approval of the State Administration of Defense, the tank of Three Gorges officially launched its fourth experimental water storage of 175 meters at midnight on September 10, 2011. By 7 p.m. on the 18th, the water level of the reservoir had reached 160.18 meters. On July 23, 2012, the Three Gorges Project opened seven deep drainage holes to drain floodwaters. The water flow upstream reached 46,000 cubic meters per second. On July 24, 2012, the inflow of the Three Gorges Dam reached 71,200 cubic meters per second, the largest flood peak experienced by the Trois Gorges reservoir since its construction.
The Three Gorges Hydroelectric Power Station has a dam height of 185 meters, a normal water storage level of 175 meters, and a reservoir length of 2,335 meters. It has a static investment of 135.266 billion yuan and has installed 32 hydropower plants. units with a single capacity of 700,000 kilowatts. The last hydropower unit of the Three Gorges Hydropower Station was put into operation on July 4, 2012. This means that the Three Gorges Hydropower Station, with an installed capacity of 22.4 million kilowatts, has become the largest hydropower station and clean energy production base in the world. July 4, 2012.
2. The best in the world
① The overall project is large-scale. The total construction volume of the main building of the conservation projectof the Three Gorges waters (including diversion) includes: 102.83 million cubic meters of earth and stone for the building foundation, 27.94 million cubic meters of concrete foundation, 31.98 million cubic meters of earth and stone filling and installation of 256,500 tons of metal structures Installation of 34 sets of electromechanical equipment for hydroelectric power plants, 2.2.5 million kilowatts. Except for the amount of land and stone, all other indicators rank first in the world.
②. The unique building is large. ⑴Dam: The Three Gorges Water Conservation Dam is a concrete gravity dam with a total water impoundment length of 2,345 meters, a maximum dam height of 181 meters, and a total concrete volume of 17 million of cubic meters. ranks first in the world. ⑵Hydroelectric power station: The Three Gorges hydroelectric power station is a power plantique located behind a dam. The unit capacity, total installed capacity and annual electricity generation of hydropower plants rank first in the world. The hydroelectric power station transmission project includes 2 ±500 kV DC transmission circuits and 11 circuits of 500 kV AC transmission lines. The scale of the transportation project is the first in the world. ⑶ Double-line, five-tier lock: The waterfall lock of the Three Gorges Project is an inland river lock with the highest total water height (113 meters) and the largest number of steps (5 tiers) in the world. The upper level lock chamber has effective dimensions (280 meters long, 34 meters wide, threshold The upper water depth is 5 meters) and the passing tonnage (10,000 ton fleet) is highest inland navigation lock built in the world. The maximum working water height of the ship lock is 49.5 mmeters, the maximum water filling and discharge capacity is 260,000 cubic meters, and the maximum slope excavation height is 170 meters, all among the highest in the world. ⑷Single-line first-level vertical elevator: the effective size of the ship-carrying compartment of the ship elevator of the Three Gorges Water Conservancy Project is 120 × 18 × 3.5 meters, the total weight is 11,800 tonnes, maximum lifting height is 113 meters. , the tonnage of the passing ship is 3,000 tons, and the water level amplitude is 30 meters upstream, downstream 12 meters and other indicators are all above the world level. The Three Gorges Boat Lift is the largest and most difficult boat lift in the world.
③. The metal structure ranks first in the world. The total metal structure of the Three Gorges project includes 386 doors of different types, 139 elevators of differents types and 26 steel pressure water pipes, with a total construction volume of 266,500 tons. Its overall project volume ranks first in the world in terms of projects completed and under construction. Among the individual metal structures, the inner diameter of the water diversion steel pipe is 12.4 meters, the height of the herringbone working door stop of the ship's permanent lock is 37.75 meters, the height of the gate is 39.75 meters, and the maximum depth of submerged water during operation is 17-35 meters, among the highest in the world.