The history of dam construction in China

China has a long history of building reservoir dams, such as Dujiangyan in China, which was built around 240 BC. For example, Anfengtang in Shouxian County, Anhui Province, which was built between 598 BC and 59 BC1year, has a dam height of 6.5m, a storage capacity of 90.7 million cubic meters and a water area of 34 square kilometers. It has been repaired, updated and rebuilt many times in history, and it has a history of more than 2600 years.

The Three Gorges Dam is located in Yichang City, Hubei Province, China, 38 kilometers away from the downstream Gezhouba Water Control Project; It is the main project of the Three Gorges Hydropower Station, the core landscape of the Three Gorges Dam tourist area, and the eastern end of the Three Gorges Reservoir, the largest hydropower project in the world today.

The Three Gorges Dam Project consists of the main building and diversion works, with a total length of about 2,309 m, a dam height of 1.85m and a total investment of 495.46 billion RMB. 65,438+0,994,65,438+2,004 officially started construction, and the whole line was completed on May 20, 2006.

With the approval of the National Defense General, the Three Gorges Reservoir was officially started at 0: 00 on September 201year 175m for the fourth experimental water storage. By 9: 00 on June 8/kloc-0, the water level of the reservoir reached160.18m .. 20. The upstream inflow surged to 46,000 cubic meters per second. 20 12 On July 24th, the inflow of the Three Gorges Dam reached 7120,000 cubic meters per second, the largest flood peak since the Three Gorges Reservoir was built.