Sanbanxi Dam

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Sanbanxi Dam
China edcp relief location map.jpg
Red pog.svg
Location of Sanbanxi Dam in China
Country China
Location Jinping County, Guizhou Province
Coordinates 26°36′21″N109°02′54″E / 26.60583°N 109.04833°E / 26.60583; 109.04833 Coordinates: 26°36′21″N109°02′54″E / 26.60583°N 109.04833°E / 26.60583; 109.04833
Status In use
Construction began 2001
Opening date 2006
Dam and spillways
Type of dam Embankment, concrete face rock-fill
Impounds Yuan (Qingshui) River
Height 185.5 metres (609 ft)
Length 423.75 metres (1,390 ft)
Dam volume 8,280,000 metres (27,165,354 ft)
Spillways 3
Spillway type Service, gate-controlled chute on crest
Spillway capacity 13,100 cubic metres per second (462,622 cu ft/s) (max)
Reservoir
Creates Sanbanxi Reservoir
Total capacity 4,094,000,000 m3 (3,319,060 acre⋅ft)
Power Station
Turbines 4 x 250 MW
Installed capacity 1,000 MW
Annual generation 2.428 billion kWh

The Sanbanxi Dam is a concrete face rock-fill embankment dam on the Yuan (Qingshui) River in Jinping County, Guizhou Province, China. The dam houses a hydroelectric power station with 4 x 250 MW generators for a total installed capacity of 1,000 MW. [1] Construction began in 2001 and was complete by 2006. [2]

Embankment dam large artificial dam

An embankment dam is a large artificial dam. It is typically created by the placement and compaction of a complex semi-plastic mound of various compositions of soil, sand, clay, or rock. It has a semi-pervious waterproof natural covering for its surface and a dense, impervious core. This makes such a dam impervious to surface or seepage erosion. Such a dam is composed of fragmented independent material particles. The friction and interaction of particles binds the particles together into a stable mass rather than by the use of a cementing substance.

Yuan River river in Hunan, China

The Yuan River, also known by its Chinese name as the Yuanjiang, is one of the four largest rivers in Hunan province in southeast-central China. It is a tributary of Yangtze River. It is 864 kilometres (537 mi) long and rises in Guizhou province in the Miao Mountains near Duyun and is navigable. The upper stream is called the Longtou River, and downstream it is called the Qingshui or Ch‘ing-shui River. It becomes the Yuan River after its confluence with its northern tributary, the Wu River.

Jinping County is a county in the east of Guizhou province, China. It is under the administration of the Qiandongnan Miao and Dong Autonomous Prefecture.

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References

  1. "Sanbanxi Hydro Power Station" (in Chinese). S.C.Consultation. Retrieved 8 January 2011.
  2. "China's highest CFRDs". Chinese National Committee on Large Dams. Retrieved 8 January 2011.