Dachaoshan
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Dachaoshan completed
Particulars
Owner: unknown
Designer: Beijing Hydroelectric Investigation & Design Institute, MOE & MWR
Contractor: JV between 8th and 3rd Construction Bureaux, SPC (70% to 8th)
Statistics
Type: Gravity
Purpose(s): Flood Control / Hydropower
Reservoir capacity: 890 m3x106
Height: 115 metres
Length: 481 metres
Volume of RCC: 757 m3x103
Total volume: 1287 m3x103
Construction Dates
Start of Project: 10/97 (October 1997)
Start of RCC: 12/98 (December 1998)
End of RCC: 10/01 (October 2001)
End of Project: 07/02 (July 2002)
Country: China
River: Lancang
DMS Co-ordinates: 24˚01'28.77"N, 100˚22'10.69"E
DD Co-ordinates: 24.024658, 100.369637
Facings
Upstream
| Slope | Type |
|---|---|
| Vertical | RCC against formwork (GEVR/GE-RCC) |
| 0.20 |
Downstream
| Slope | Type |
|---|---|
| 0.70 | RCC against precast concrete blocks [stepped face] |
Spillway
| Slope | Type |
|---|---|
| 0.70 | Reinforced concrete cast against precast units or slip-formed facing elements |
Placement
| Layers (mm) | Lifts (mm) |
|---|---|
| 300 | 300 |
Cementitious material
| Cement (kg/m3) |
|---|
| 94 |
| 67 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 94 | Natural pozzolan (ASTM Class N) |
| 101 |
