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Nam Gnouang (Theun Hinboun Expansion)

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Nam Gnouang (Theun Hinboun Expansion) under construction
Nam Gnouang (Theun Hinboun Expansion) under construction

Particulars

Owner: Theun Hinboun Power Company

Designer: Sweco

Contractor: CMC di Ravenna (RCC subcontracted to Vichitbhan Construction Co. Ltd., of Thailand)

Statistics

Type: Gravity

Purpose(s): Hydropower

Reservoir capacity: unknown

Height: 70 metres

Length: 470 metres

Volume of RCC: 383 m3x103

Total volume: unknown

Construction Dates

Start of Project: 10/08 (October 2008)

Start of RCC: 03/10 (March 2010)

End of RCC: 12/11 (December 2011)

End of Project: /12 ( 2012)

Country: Laos

River: Nam Gnouang

DMS Co-ordinates: 18˚17'50.11"N, 104˚38'10.35"E

DD Co-ordinates: 18.297253, 104.636208

Facings

Upstream

SlopeType
VerticalTraditional concrete against formwork

Downstream

SlopeType
0.80Traditional concrete against formwork

Spillway

SlopeType
1.00Reinforced conventional concrete cast after RCC placement

Placement

Layers (mm)Lifts (mm)
300300

Cementitious material

Cement (kg/m3)
90
Pozzolan (kg/m3)Pozzolan Type
100High-lime flyash (ASTM Class C)