Miyagase
Download PDF data sheet
Miyagase completed
Particulars
Owner: unknown
Designer: Ministry of Construction
Contractor: Kajima Co Ltd, Ohbayashi Co Ltd and Toda Construction Co Ltd J.V.
Statistics
Type: Gravity
Purpose(s): Flood Control / Hydropower / Water Supply
Reservoir capacity: 193 m3x106
Height: 156 metres
Length: 400 metres
Volume of RCC: 1537 m3x103
Total volume: 2060 m3x103
Construction Dates
Start of Project: 11/87 (November 1987)
Start of RCC: 11/91 (November 1991)
End of RCC: 02/95 (February 1995)
End of Project: 03/01 (March 2001)
Country: Japan
River: Nakatsu
DMS Co-ordinates: 35˚32'31.89"N, 139˚14'56.42"E
DD Co-ordinates: 35.542191, 139.249008
Facings
Upstream
| Slope | Type |
|---|---|
| 0.20 | Traditional concrete against formwork |
| 0.60 | Traditional concrete against formwork |
Downstream
| Slope | Type |
|---|---|
| 0.625 | Traditional concrete against formwork |
Spillway
| Slope | Type |
|---|---|
| 0.625 | Traditional concrete against formwork |
Placement
| Layers (mm) | Lifts (mm) |
|---|---|
| 150 - | 750 |
| 200 |
Cementitious material
| Cement (kg/m3) |
|---|
| 91 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 39 | Low-lime flyash (ASTM Class F) |
