Longmentan Nº1
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Longmentan Nº1 completed
Particulars
Owner: unknown
Designer: Fujian Institute of Investigation and Design of Water Conservancy and Hydropower
Contractor: Fujian (Minjiang) Construction Bureau
Statistics
Type: Gravity
Purpose(s): Hydropower / Irrigation / Water Supply
Reservoir capacity: 53 m3x106
Height: 58 metres
Length: 150 metres
Volume of RCC: 71 m3x103
Total volume: 93 m3x103
Construction Dates
Start of Project: 12/85 (December 1985)
Start of RCC: 12/87 (December 1987)
End of RCC: 08/89 (August 1989)
End of Project: 09/89 (September 1989)
Country: China
River: Chanxi
DMS Co-ordinates: 25˚29'32.65"N, 118˚21'17.91"E
DD Co-ordinates: 25.492403, 118.354973
Facings
Upstream
| Slope | Type |
|---|---|
| Vertical | Reinforced conventional concrete cast after RCC placement |
| 0.30 | Reinforced conventional concrete cast after RCC placement |
Downstream
| Slope | Type |
|---|---|
| 0.75 | RCC against precast concrete blocks |
Spillway
| Slope | Type |
|---|---|
| 0.75 | Reinforced concrete cast against precast units or slip-formed facing elements |
Placement
| Layers (mm) | Lifts (mm) |
|---|---|
| 300 | 300 |
Cementitious material
| Cement (kg/m3) |
|---|
| 72 |
| 54 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 82 | Low-lime flyash (ASTM Class F) |
| 86 |
