Xinfengjiang Dam
| Xinfengjiang Dam | |
|---|---|
MW 1 x 75 MW Francis-type | |
| Installed capacity | 292.5 MW 315 MW (max. planned) |
The Xinfengjiang Dam (
Background
Construction on the dam began in 1958, a total of 1,550,000 m3 (54,737,733 cu ft) of earth was excavated at the construction site. On October 20, 1959 the reservoir behind the dam began to fill and in November there were several small earthquakes within the reservoir zone. When the water level reached 81 m (266 ft) above sea level (ASL) in May 1960, there were three to four earthquakes at a 3.1-Mw and on July 18, when the water level 90 m (295 ft) ASL, a 4.3-Mw earthquake occurred. On March 19, 1962 when the reservoir reached 110.5 m (363 ft) ASL there was a 6.1-Mw earthquake with an epicenter 1.1 km (1 mi) downstream from the dam which destroyed several houses in the area.[2][3] After the earthquake and as a precaution, cavities within the foundation were reinforced with concrete. This and other upgrades brought the dam to a 9.5-Mw -rated resistant design.[2]
Design
The dam is a 105 m (344 ft) tall, 440 m (1,444 ft) wide gravity dam. Its crest width is 5 m (16 ft) and it has a structural volume of 1,060,000 m3 (37,433,547 cu ft) of concrete. Above the dam is a 5,740 km2 (2,216 sq mi) drainage area and it withholds a reservoir of 13,900,000,000 m3 (11,268,913
See also
References
- ^ "Atmospheric Transport in South China" (PDF). The Hong Kong Polytechnic University. p. 88. Archived from the original (PDF) on 18 July 2011. Retrieved 11 March 2011.
- ^ a b c "河源新丰江水电站 (Heyuan station Xinfengjiang)" (in Chinese). 河源市三丰畜牧 (Animal Feed Firm). Retrieved 11 March 2011.
- ^ Hvistendahl, Mara (25 March 2008). "China's Three Gorges Dam: An Environmental Catastrophe?". Scientific American. Retrieved 11 March 2011.
- ^ "河源新丰江水电站-万绿湖水库大坝 (Heyuan Xinfengjiang Station - Wanlu Lake Dam)" (in Chinese). 河源客 (Heyuan off). Archived from the original on 11 July 2011. Retrieved 11 March 2011.