Santa Luzia Dam (Portuguese: Barragem de Santa Luzia) is a concrete arch dam on the Unhais, a northern tributary of the Zêzere River, located in the municipality Pampilhosa da Serra, in Coimbra District, Portugal. The dam was constructed between 1930 and 1942[1] and was designed by André Coyne.[2]
| Santa Luzia Dam | |
|---|---|
_(cropped).jpg) Santa Luzia Dam | |
  Location of Santa Luzia Dam in Portugal | |
| Official name | Barragem de Santa Luzia |
| Location | municipality Pampilhosa da Serra, Coimbra District, Portugal |
| Coordinates | 40°5′23.2″N 7°51′28.8″W / 40.089778°N 7.858000°W |
| Status | Operational |
| Construction began | 1930 |
| Opening date | 1942 |
| Dam and spillways | |
| Type of dam | Concrete arch dam |
| Impounds | Unhais |
| Height | 76 metres (249 ft) |
| Length | 115 metres (377 ft) |
| Width (crest) | 2.5 metres (8 ft 2 in) |
| Dam volume | 80,000 m3 (2,800,000 cu ft) |
| Reservoir | |
| Creates | Santa Luzia Reservoir |
| Total capacity | 53,700,000 m3 (1.90×109 cu ft) |
| Surface area | 2.46 km2 (0.95 sq mi) |
| Power Station | |
| Commission date | 1942 |
| Turbines | 4 x 8 MW Pelton-type |
| Installed capacity | 32 MW |
| Annual generation | 55 GWh |
Design
editSanta Luzia Dam is a 76 m tall and 115 m long arch dam. The volume of the dam is 80.000 m³. The dam contains 2 crest spillways and one bottom outlet. At full reservoir level the reservoir of the dam (Portuguese: Albufeira da Barragem de Santa Luzia) has a surface area of 2.46 km² and its total capacity is 53.7 Mio m³.[1]
The concrete of the dam is affected by concrete swelling, caused by an alkali–silica reaction, that leads to tensions and cracks in the concrete.[3][4]
Power plant
editThe power plant is one of the smaller hydroelectric power stations in Portugal with a nameplate capacity of 32 MW. Its average annual generation is 55 Mio. kWh. The power station contains four Pelton turbine-generators.[1]
See also
edit
References
edit- ^ a b c "SANTA LUZIA DAM". Comissão Nacional Portuguesa de Grandes Barragens (CNPGB). Retrieved 2014-11-09.
- ^ "Santa Luzia Dam". Structurae International Database for Civil and Structural Engineering. Retrieved 2014-11-09.
- ^ "RELIABILITY OF ARCH DAMS SUBJECT TO CONCRETE SWELLING" (PDF). www.xitizap.com. pp. 10–11. Retrieved 2014-11-09.
- ^ "A REVIEW AND ANALYSIS OF AAR-EFFECTS IN ARCH DAMS" (PDF). www.xitizap.com. p. 4. Retrieved 2014-11-09.
External links
edit- "Barragem de Sta. Luzia". Wikimapia. Retrieved 2014-11-09.
- "Barragem de Santa Luzia 2013". Youtube. Retrieved 2014-11-09.
- "Barragem de Santa Luzia - descarga de topo". Youtube. Retrieved 2014-11-09.