Baishan Dam

From Wikipedia, the free encyclopedia
Jump to: navigation, search
For the concrete-face rock-fill dam on the Renhe River in Chongqing, see Bashan Dam.
Baishan Dam
Baishan Dam is located in China
Baishan Dam
Location of Baishan Dam
Country China
Location Huadian, Jilin Province
Coordinates 42°43′35″N 127°13′28″E / 42.72639°N 127.22444°E / 42.72639; 127.22444Coordinates: 42°43′35″N 127°13′28″E / 42.72639°N 127.22444°E / 42.72639; 127.22444
Status In use
Construction began 1975
Opening date 1984
Dam and spillways
Type of dam Arch gravity
Impounds Second Songhua River
Height 149.5 m (490 ft)
Length 677.5 m (2,223 ft)
Dam volume 1,663,000 m3 (58,728,291 cu ft)
Spillways 4
Spillway type Service, crest overflow
Reservoir
Creates Baishan Reservoir
Total capacity 6,500,000,000 m3 (5,269,636 acre·ft)
Catchment area 19,000 km2 (7,336 sq mi)
Power station
Commission date Phase I: 1984
Phase II: 1992
PS: 2006
Type Conventional and Pumped-storage
Hydraulic head 110 m (361 ft) (design)
Turbines 5 x 300 MW Francis turbines conventional
2 x 150 MW Pumped-storage
Installed capacity 1,800 MW

The Baishan Dam (Chinese: 白山水库, meaning: "White Mountain Dam") is an arch-gravity dam on the Second Songhua River near the town of Baishanzhen, Huadian, Jilin Province, China. The purpose of the dam is hydroelectric power generation and flood control. The dam supplies water to five turbine-generators in two different powerhouses for an installed capacity of 1,500 MW while it can also control a design 19,100 cubic metres per second (674,510 cu ft/s) flood. Additionally, it has a 300 MW pumped-storage hydroelectric generation capacity. It is named after Baekdu Mountain (White Mountain), near the city of Baishan.

Construction[edit]

Construction on the dam began in May 1975, the reservoir began to fill on September 16, 1982 and by the end of 1984, the first phase of three generators was operational. Another two generators in the project's second phase were operational by 1992.[1] The dam submerged an area of 17.67 square kilometres (7 sq mi), displacing about 10,300 people.[2]

In March 2000, a feasibility study report on a pumped-storage capability for the dam was approved. In August 2002, construction started on installing two 150 MW reversible pump generators and by July 2006, they were operational.[3]

Design[edit]

The Baishan Dam is a 149.5 metres (490 ft) tall and 677.5 metres (2,223 ft) long arch gravity dam composed of 1,663,000 cubic metres (58,728,291 cu ft) of concrete.[4] It withholds a 6,500,000,000 cubic metres (5,269,636 acre·ft) reservoir of which 3,540,000,000 cubic metres (2,869,925 acre·ft) is active or "useful" storage and 950,000,000 cubic metres (770,178 acre·ft) is flood storage. The dam's spillway contains four 12 metres (39 ft) x 13 metres (43 ft) openings and three 6 metres (20 ft) x 7 metres (23 ft) mid-level openings on its orifice.[1] All the dam's openings can discharge a design of 19,100 cubic metres per second (674,510 cu ft/s), check standard of 26,200 cubic metres per second (925,244 cu ft/s) and maximum of 32,200 cubic metres per second (1,137,132 cu ft/s) of water.[2]

The dam powers three separate power stations. The first station to be constructed is located underground and contains 3 x 300 MW Francis turbine generators while the second, located on the left bank slightly downstream contains 2 x 300 MW Francis turbine generators.[1] The third portion of the dam's power station is 2 x 150 MW pump-generators. The dam's current reservoir serves as the upper and the Hongshi Dam's reservoir downstream serves as the lower.[3]

See also[edit]

References[edit]

  1. ^ a b c "Hydropower Stations in Northeast China". Embassy China. 2004-07-29. Retrieved 9 January 2011. 
  2. ^ a b "Baishan Hydropower Station" (in Chinese). Water Pub. Retrieved 9 January 2011. 
  3. ^ a b "吉林白山抽水蓄能电站顺利通过验收 (Jilin Baishan Pumped Storage Power Station passed acceptance)" (in Chinese). Polaris Power News Center. May 27, 2008. Retrieved 9 January 2011. 
  4. ^ "Dams Overview". Geokon, Inc. Archived from the original on 1 December 2010. Retrieved 9 January 2011.