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Open AccessArticle

Semi-Rigid Erosion Control Techniques with Geotextiles Applied to Reservoir Margins in Hydroelectric Power Plants, Brazil

1
São Carlos School of Engineering (EESC), University of São Paulo, São Carlos, São Paulo 13566-590, Brazil
2
Eletrobras, Furnas Centrais Elétricas SA, Aparecida de Goiânia, Goiás 74923-650, Brazil
3
Ingá Engenharia e Consultoria, Belo Horizonte 30320-130, Brazil
4
Industrial and Systems Engineering Postgraduate Program (MEPROS), Pontifical Catholic University of Goiás, Goiânia 74605-010, Brazil
*
Author to whom correspondence should be addressed.
Academic Editor: Iacopo Carnacina
Water 2021, 13(4), 500; https://doi.org/10.3390/w13040500
Received: 24 December 2020 / Revised: 28 January 2021 / Accepted: 5 February 2021 / Published: 15 February 2021
(This article belongs to the Special Issue Local Erosion of Hydraulic Structures and Flood Protection)
In Brazil, hydroelectricity represents close to 70% of the energy consumed in the country. However, hydroelectric plant operations may be affected by the deposit of sediments for erosive processes on reservoir margins. This study presents the results of implementing two semi-rigid erosion control techniques installed on reservoir margins of two Brazilian Hydroelectric Power Plants (HPPs). These techniques were the gabion and gabion mattress used as a mixed technique and geogrid mattress technique. This paper highlights the importance of implementing geotextiles in the construction process of these erosion control techniques, taking advantage of their separation properties. The performance of the techniques was evaluated using qualitative performance variables and by differential bathymetry studies performed in 2016 and 2020 in the experimental units installed in each HPP. Moreover, the degradation of the geotextiles in each installation was evaluated through thermal analysis. The erosion control techniques that showed the best results were gabion and gabion mattress. Regarding the exhumed geotextiles, thermal analyses have shown that the commercial geotextiles that were used can withstand temperatures of up to 200 °C leading to no changes to their structure. View Full-Text
Keywords: geotextiles; gabion; erosion control techniques; reservoir margins geotextiles; gabion; erosion control techniques; reservoir margins
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MDPI and ACS Style

Aparicio Ardila, M.A.; dos Santos Junior, R.D.; Kobelnik, M.; Aparecido Valentin, C.; Silva Schliewe, M.; Teixeira Coelho, A.; Lins da Silva, J.; Pereira da Luz, M. Semi-Rigid Erosion Control Techniques with Geotextiles Applied to Reservoir Margins in Hydroelectric Power Plants, Brazil. Water 2021, 13, 500. https://doi.org/10.3390/w13040500

AMA Style

Aparicio Ardila MA, dos Santos Junior RD, Kobelnik M, Aparecido Valentin C, Silva Schliewe M, Teixeira Coelho A, Lins da Silva J, Pereira da Luz M. Semi-Rigid Erosion Control Techniques with Geotextiles Applied to Reservoir Margins in Hydroelectric Power Plants, Brazil. Water. 2021; 13(4):500. https://doi.org/10.3390/w13040500

Chicago/Turabian Style

Aparicio Ardila, Maria A.; dos Santos Junior, Ricardo D.; Kobelnik, Marcelo; Aparecido Valentin, Clever; Silva Schliewe, Marlon; Teixeira Coelho, Arnaldo; Lins da Silva, Jefferson; Pereira da Luz, Marta. 2021. "Semi-Rigid Erosion Control Techniques with Geotextiles Applied to Reservoir Margins in Hydroelectric Power Plants, Brazil" Water 13, no. 4: 500. https://doi.org/10.3390/w13040500

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