Nam Theun 1
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Nam Theun 1 under construction
Particulars
Owner: Nam Theun 1 Power Company
Designer: Pöyry Energy Ltd.
Contractor: CMC Ravenna, Song Da Corporation J.V.
Statistics
Type: Gravity
Purpose(s): Hydropower
Reservoir capacity: 3009 m3x106
Height: 177 metres
Length: 772 metres
Volume of RCC: 3980 m3x103
Total volume: 4180 m3x103
Construction Dates
Start of Project: 08/15 (August 2015)
Start of RCC: 01/19 (January 2019)
End of RCC: 06/21 (June 2021)
End of Project: 07/22 (July 2022)
Country: Laos
River: Nam Kading, aka Nam Theun
DMS Co-ordinates: 18˚21'18"N, 104˚08'50"E
DD Co-ordinates: 18.355000, 104.147224
Facings
Upstream
| Slope | Type |
|---|---|
Downstream
| Slope | Type |
|---|---|
Spillway
| Slope | Type |
|---|---|
Placement
| Layers (mm) | Lifts (mm) |
|---|---|
| 300 | 3000 |
Cementitious material
| Cement (kg/m3) |
|---|
| 100 |
| 120 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 80 | Low-lime flyash (ASTM Class F) |
| 130 |
