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Yantan

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Yantan completed
Yantan completed

Particulars

Owner: Datang Yantan Hydropower Co. Ltd.

Designer: Investigation and Design Institute of Guangxi Electric Power Industry

Contractor: Guangxi Hydroelectric Construction Bureau and Gezhouba Construction Bureau

Statistics

Type: Gravity

Purpose(s): Flood Control / Hydropower / Navigation

Reservoir capacity: 3380 m3x106

Height: 110 metres

Length: 525 metres

Volume of RCC: 626 m3x103

Total volume: 905 m3x103

Construction Dates

Start of Project: 03/85 (March 1985)

Start of RCC: 02/89 (February 1989)

End of RCC: 03/92 (March 1992)

End of Project: 12/95 (December 1995)

Country: China

River: Hongshui

DMS Co-ordinates: 24˚02'28.52"N, 107˚30'45.1"E

DD Co-ordinates: 24.041256, 107.512527

Facings

Upstream

SlopeType
VerticalTraditional concrete against formwork

Downstream

SlopeType
VerticalTraditional concrete against formwork
0.80Traditional concrete against formwork  [stepped face]

Spillway

SlopeType
ogeeTraditional concrete against formwork

Placement

Layers (mm)Lifts (mm)
300300

Cementitious material

Cement (kg/m3)
55
Pozzolan (kg/m3)Pozzolan Type
104Low-lime flyash (ASTM Class F)