Yantan
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Yantan completed
Particulars
Owner: unknown
Designer: Investigation and Design Institute of Guangxi Electric Power Industry
Contractor: Guangxi Hydroelectric Construction Bureau and Gezhouba Construction Bureau
Statistics
Type: Gravity
Purpose(s): Flood Control / Hydropower / Navigation
Reservoir capacity: 34 m3x106
Height: 110 metres
Length: 525 metres
Volume of RCC: 626 m3x103
Total volume: 905 m3x103
Construction Dates
Start of Project: 03/85 (March 1985)
Start of RCC: 02/89 (February 1989)
End of RCC: 03/92 (March 1992)
End of Project: 12/95 (December 1995)
Country: China
River: Hongshui
DMS Co-ordinates: 24˚02'28.52"N, 107˚30'45.1"E
DD Co-ordinates: 24.041256, 107.512527
Facings
Upstream
| Slope | Type |
|---|---|
| Vertical | Traditional concrete against formwork |
Downstream
| Slope | Type |
|---|---|
| Vertical | Traditional concrete against formwork |
| 0.80 | Traditional concrete against formwork [stepped face] |
Spillway
| Slope | Type |
|---|---|
| ogee | Traditional concrete against formwork |
Placement
| Layers (mm) | Lifts (mm) |
|---|---|
| 300 | 300 |
Cementitious material
| Cement (kg/m3) |
|---|
| 55 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 104 | Low-lime flyash (ASTM Class F) |
