Guanyinyan Dam

The Guanyinyan Dam is a gravity dam on the Jinsha River 30 km (19 mi) southwest of Panzhihua on the border of Yunnan and Sichuan Provinces in China. The purpose of the dam is hydroelectric power generation and flood control. Construction on the dam started in 2008 and the river was diverted by 2010. The first generator was operational on 20 December 2014 and the fourth on 14 December 2015.[1] The entire power station should be operational by 2016.[2][3] When complete, the dam will support a 3,000 MW power station consisting of five 600 MW Francis turbine generators.[4]

Guanyinyan Dam
The dam in November 2016
Location of Guanyinyan Dam in China
Coordinates26°31′17″N 101°26′16″E
StatusComplete, generators commissioning
Construction began2008
Opening date2014
Owner(s)Datang Guanyinyan Hydropower Development Co.
Dam and spillways
Type of damGravity
ImpoundsJinsha River
Height159 m (522 ft)
Length1,158 m (3,799 ft)
Spillways3
Spillway typeService, controlled chute
Reservoir
CreatesGuanyinyan Reservoir
Total capacity2,072,000,000 m3 (1,679,798 acre⋅ft)
Power Station
Commission date2014-2016 (est.)
Turbines5 x 600 MW Francis turbines
Installed capacity3,000 MW

Design

The Guanyinyan Dam will is a 159 m (522 ft) tall and 1,158 m (3,799 ft) long gravity dam. Of the dam's length, 838 m (2,749 ft) is roller-compacted concrete and 320 m (1,050 ft) is rock-fill embankment with this portion having a maximum height of 71 m (233 ft). The crest elevation of the dam will be 1,141 m (3,743 ft) above sea level and contain the power plant at the toe of its body. A spillway and two discharge openings are also included in the design.[5]

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See also

References
  1. "Guanyinyan Station Unit 4 into operation early realization of "three times a year to vote."" (in Chinese). Polaris Power Network. Datang guanyinyan Hydropower. 15 December 2015. Retrieved 16 February 2016.
  2. "Hydropower Development Co., Ltd. Datang Guanyinyan". China CDT. Archived from the original on 2 February 2014. Retrieved 9 January 2011.
  3. "Datang Guanyinyan station first unit success and power generation" (in Chinese). Xinhua. 21 December 2014. Retrieved 7 January 2015.
  4. "Jinsha River Dams". International Rivers. Retrieved 9 January 2011.
  5. "Guanyinyan station left, the right bank of the dam civil engineering and installation of metal structures and building construction, mechanical and electrical construction and installation of metal structures pre-qualification tender notice" (in Chinese). State Power Information Network by the National Network Information Communication Co., Ltd. Archived from the original on 7 July 2011. Retrieved 9 January 2011.
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