Wan’an
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Wan’an completed
Particulars
Owner: unknown
Designer: Yangtze Valley Planning Office
Contractor: Hydropower Command (China An’neng Construction Corporation)
Statistics
Type: Gravity
Purpose(s): Flood Control / Hydropower / Irrigation / Navigation
Reservoir capacity: 2216 m3x106
Height: 68 metres
Length: 1104 metres
Volume of RCC: 156 m3x103
Total volume: 1480 m3x103
Construction Dates
Start of Project: 11/84 (November 1984)
Start of RCC: 12/90 (December 1990)
End of RCC: 12/92 (December 1992)
End of Project: 06/94 (June 1994)
Facings
Upstream
| Slope | Type |
|---|---|
| Vertical | Traditional concrete against formwork |
Downstream
| Slope | Type |
|---|---|
| 0.80 | Traditional concrete against formwork |
Spillway
| Slope | Type |
|---|---|
| ogee | Traditional concrete against formwork |
Placement
| Layers (mm) | Lifts (mm) |
|---|---|
| 300 | 300 |
Cementitious material
| Cement (kg/m3) |
|---|
| 65 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 105 | Low-lime flyash (ASTM Class F) |
