Nam Gnouang (Theun Hinboun Expansion)
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Nam Gnouang (Theun Hinboun Expansion) completed
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: 2450 m3x106
Height: 65 metres
Length: 480 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˚17'46.68"N, 104˚38'11.48"E
DD Co-ordinates: 18.296299, 104.63652
Facings
Upstream
| Slope | Type |
|---|---|
| Vertical | Traditional concrete against formwork |
Downstream
| Slope | Type |
|---|---|
| 0.80 | Traditional concrete against formwork [stepped face] |
Spillway
| Slope | Type |
|---|---|
| 1.00 | Reinforced conventional concrete cast after RCC placement |
Placement
| Layers (mm) | Lifts (mm) |
|---|---|
| 300 | 300 |
Cementitious material
| Cement (kg/m3) |
|---|
| 90 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 100 | Low-lime flyash (ASTM Class F) |
