Nakai, part of Nam Theun 2 HPP
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Nakai, part of Nam Theun 2 HPP completed
Particulars
Owner: Nam Theun Power Corporation (NTPC)/EdF (Electricitie de France)
Designer: EDF
Contractor: Italian Thai-Nishimatsu Construction Co. JV
Statistics
Type: Gravity
Purpose(s): Hydropower
Reservoir capacity: 3530 m3x106
Height: 39 metres
Length: 436 metres
Volume of RCC: 150 m3x103
Total volume: 207 m3x103
Construction Dates
Start of Project: 04/04 (April 2004)
Start of RCC: 03/06 (March 2006)
End of RCC: 10/07 (October 2007)
End of Project: 10/09 (October 2009)
Country: Laos
River: Nam Theun
DMS Co-ordinates: 17˚59'50.25"N, 104˚57'8.82"E
DD Co-ordinates: 17.997292, 104.952454
Facings
Upstream
| Slope | Type |
|---|---|
| Vertical | Traditional concrete against formwork |
Downstream
| Slope | Type |
|---|---|
| 0.35 | RCC against precast concrete blocks |
| 0.75 |
Spillway
| Slope | Type |
|---|---|
| 0.75 | Reinforced conventional concrete cast after RCC placement |
Placement
| Layers (mm) | Lifts (mm) |
|---|---|
| 300 | 300 |
Cementitious material
| Cement (kg/m3) |
|---|
| 100 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 100 | Low-lime flyash (ASTM Class F) |
