Yunishigawa
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Yunishigawa completed
Particulars
Owner: unknown
Designer: CTI Engineering
Contractor: Kajima Construction Co. Ltd. & Shimizu Corporation JV
Statistics
Type: Gravity
Purpose(s): Flood Control / Irrigation / Water Supply
Reservoir capacity: 75 m3x106
Height: 119 metres
Length: 320 metres
Volume of RCC: 967 m3x103
Total volume: 1053 m3x103
Construction Dates
Start of Project: 08/08 (August 2008)
Start of RCC: 09/09 (September 2009)
End of RCC: 05/11 (May 2011)
End of Project: 09/12 (September 2012)
Country: Japan
River: Yunishi
DMS Co-ordinates: 36˚56'10.72"N, 139˚39'43.69"E
DD Co-ordinates: 36.93631, 139.66214
Facings
Upstream
| Slope | Type |
|---|---|
| Vertical | Traditional concrete against formwork |
| 0.60 |
Downstream
| Slope | Type |
|---|---|
| 0.78 | Traditional concrete against formwork |
Spillway
| Slope | Type |
|---|---|
| 0.78 | Traditional concrete against formwork |
Placement
| Layers (mm) | Lifts (mm) |
|---|---|
| 250 | 1000 |
Cementitious material
| Cement (kg/m3) |
|---|
| 91 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 39 | Low-lime flyash (ASTM Class F) |
