Next Article in Journal
Analysis of Drought Characteristics in Northern Shaanxi Based on Copula Function
Previous Article in Journal
Persistence of Enterobacteriaceae Drawn into a Marine Saltern (Saline di Tarquinia, Italy) from the Adjacent Coastal Zone
Article

Geomats Used to Control Erosion on Reservoir Margins in Brazilian Hydroelectric Power Plants

1
Eletrobras, Furnas Centrais Elétricas S.A., Aparecida de Goiânia, Goiás 74923-650, Brazil
2
Industrial and Systems Engineering Postgraduate Program (MEPROS), Pontifical Catholic University of Goiás, Goiânia 74605-010, Brazil
3
São Carlos School of Engineering (EESC), University of São Paulo, São Carlos, São Paulo 13566-590, Brazil
4
Ingá Engenharia e Consultoria, Belo Horizonte 30320-130, Brazil
*
Author to whom correspondence should be addressed.
Academic Editor: Iacopo Carnacina
Water 2021, 13(11), 1444; https://doi.org/10.3390/w13111444
Received: 9 March 2021 / Revised: 7 May 2021 / Accepted: 9 May 2021 / Published: 21 May 2021
(This article belongs to the Section Water Erosion and Sediment Transport)
Erosion on reservoir margins causes losses in the production of energy in Hydroelectric Power Plants (HPPs), making it necessary to implement control techniques that ensure the reduction in sediment deposits inside reservoirs. Among these techniques, geomats (geosynthetic erosion mats) are widely used to control erosion processes in slopes and watercourses. This material protects the margins both in the short and long term, contributing to strengthening the vegetation’s roots developed in the erosion areas. This paper studies the performance of geomats (with and without sack gabion) installed in six margin sections distributed in three experimental units of the Brazilian HPPs called Porto Colômbia and Volta Grande. The geomat performance was evaluated over four years of monitoring through a qualitative evaluation matrix and differential bathymetry. The influence of ultraviolet (UV) radiation on the degradation of geomats installed in each section (natural conditions), as well as on geomat ultraviolet-aging samples in the laboratory (accelerated conditions), was also evaluated using differential scanning calorimetry (DSC). The results showed no significant difference in performance between using the erosion control technique consisting only of geomats and the technique consisting of geomats and sack gabion. The highest bathymetric difference value obtained in the present study was 1.62 m in the experimental unit VG1, controlled with geomat without the application of sack gabion on the margin. View Full-Text
Keywords: geomat; sack gabion; geosynthetics; erosion control techniques; reservoir margins geomat; sack gabion; geosynthetics; erosion control techniques; reservoir margins
Show Figures

Figure 1

MDPI and ACS Style

da Luz, M.P.; Aparicio Ardila, M.A.; dos Santos Junior, R.D.; Valentin, C.A.; Schliewe, M.S.; Coelho, A.T.; Lins da Silva, J. Geomats Used to Control Erosion on Reservoir Margins in Brazilian Hydroelectric Power Plants. Water 2021, 13, 1444. https://doi.org/10.3390/w13111444

AMA Style

da Luz MP, Aparicio Ardila MA, dos Santos Junior RD, Valentin CA, Schliewe MS, Coelho AT, Lins da Silva J. Geomats Used to Control Erosion on Reservoir Margins in Brazilian Hydroelectric Power Plants. Water. 2021; 13(11):1444. https://doi.org/10.3390/w13111444

Chicago/Turabian Style

da Luz, Marta P., Maria A. Aparicio Ardila, Ricardo D. dos Santos Junior, Clever A. Valentin, Marlon S. Schliewe, Arnaldo T. Coelho, and Jefferson Lins da Silva. 2021. "Geomats Used to Control Erosion on Reservoir Margins in Brazilian Hydroelectric Power Plants" Water 13, no. 11: 1444. https://doi.org/10.3390/w13111444

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop