Irapé dam
| Irapé Usina Presidente Juscelino Kubitschek |
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| Coordinates | 16 ° 44 ′ 15 ″ S , 42 ° 34 ′ 30 ″ W | ||||||||
| Data on the structure | |||||||||
| Lock type: | Rockfall dam | ||||||||
| Construction time: | 2002-2006 | ||||||||
| Height of the barrier structure : | 208 m | ||||||||
| Height of the structure crown: | 515.5 m | ||||||||
| Crown length: | 500 m | ||||||||
| Crown width: | 12.2 m | ||||||||
| Power plant output: | 360 MW | ||||||||
| Operator: | Companhia Energética de Minas Gerais (CEMIG) | ||||||||
| Data on the reservoir | |||||||||
| Altitude (at congestion destination ) | 510 m | ||||||||
| Water surface | 137 km² | ||||||||
| Storage space | 10.3 million m³ | ||||||||
| Design flood : | 6th 000 m³ / s | ||||||||
The Irapé dam is the highest dam in Brazil. The structure is a rubble dam on the Rio Jequitinhonha in the state of Minas Gerais ; it stands on the border of the municipalities of Berilo and Grão Mogol , about 26 km west of Virgem da Lapa . The dam was built between 2002 and 2006 to generate hydropower.
history
In 1963 the Jequitinhonha was examined for its hydropower potential and in 1984 these studies were revised. In 1998 the Brazilian energy supplier CEMIG won the tender for the construction of the Irapé dam. Construction began in September 2002 and at the same time the power plant project was officially renamed the Juscelino Kubitschek power plant, after the former president of Brazil. The diversion of the river was completed in April 2003 with two 14 m diameter tunnels; one 1227 m long and the other 1067 m. The reservoir was filled from December 2005 and the first generator was put into operation on July 20, 2006. The second generator went online in August and the third in October 2006. Since its completion, this has been the highest dam in Brazil.
Buildings
The dam is a rubble dam with a height of 208 m and a length of 500 m. It was built in a deep ravine just above a bend in the river. The total building volume is approx. 10.3 million m³. The dammed lake has a water surface of 137 km². The overflow flows into three 634 m long flood relief tunnels . These lead water from the reservoir to the eastern side of the river bend. Two of them are high above the valley and the third is at medium height. Each tunnel has a maximum discharge capacity of 2000 m³ / s, so the total capacity of the flood discharge is 6000 m³ / s. The hydroelectric power station is at the foot of the dam and houses three Francis turbines with 120 MW each, a total of 360 MW are installed. The generators are designed for an electrical output of 130 MW, a total of 390 MW.
The construction cost was 1 billion real (~ 480 million US $).
See also
- List of the largest dams on earth
- List of the largest reservoirs on earth
- List of the largest hydroelectric plants in the world
- List of dams in the world #Brazil
swell
- ↑ a b c d e f Usina Irape, ( Memento of the original from November 5, 2013 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. Soujequi, PDF file, 3.72 MB, accessed December 11, 2012 (Portuguese).
- ↑ a b Irape, CEMIG, ( Memento of the original from December 31, 2012 in the web archive archive.today ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. accessed on August 31, 2012.
- ↑ a b c Irape Dam - Stress and Strain: Numerical Previsions and Measurement Results, Alex Martins Calcina, Jânder de Faria Leitão, Reginaldo Araujo Machado, The 1st International Symposium on Rockfill Dams, 2009, PDF file, 1451 kB (English), accessed on December 11, 2012.
- ↑ a b c Hydroelectric Plants in Brazil - Minas Gerais, ( Memento of the original from December 9, 2012 in the web archive archive.today ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. IndustCards, accessed August 31, 2012.
- ↑ Irape Dam, ( Memento of the original from December 31, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Chinese National Committee on Large Dams, August 31, 2009, accessed August 31, 2012.
