Figure 1
Flowchart of the methodological procedure in the phases of design and model building.
Figure 2
Drawing of the project as it is currently (on the left) and the new proposal with the segment gate in the left shoulder pad. (Note: the drawings are illustrative and do not correspond to the original drawings of the project but represent the proposed changes).
Figure 3
Possible control sections and their maximum widths (Carvalho et al., 2014Carvalho, L. S., Saliba, A. P. M., Santos, R. S. F., Haselbauer, M., Velasco, D., Vianna, E. M. F., Martinez, C. B., Costa, M. E. F., & Freitas, F. L. (2014). Desenvolvimento do projeto do modelo reduzido da SHPP Salto Paraopeba. In XXVI Congreso Latinoamericano de Hidráulica - IAHR. Santiago, Chile.).
Figure 4
Profile of the riverbed of SHPP Salto Paraopeba reservoir.
Figure 2
Drawing of the project as it is currently (on the left) and the new proposal with the segment gate in the left shoulder pad. (Note: the drawings are illustrative and do not correspond to the original drawings of the project but represent the proposed changes).
Figure 3
Possible control sections and their maximum widths (Carvalho et al., 2014Carvalho, L. S., Saliba, A. P. M., Santos, R. S. F., Haselbauer, M., Velasco, D., Vianna, E. M. F., Martinez, C. B., Costa, M. E. F., & Freitas, F. L. (2014). Desenvolvimento do projeto do modelo reduzido da SHPP Salto Paraopeba. In XXVI Congreso Latinoamericano de Hidráulica - IAHR. Santiago, Chile.).
Figure 4
Profile of the riverbed of SHPP Salto Paraopeba reservoir.
Figure 5
Key-curve of sediment considered for SHPP Salto do Paraopeba (Do Vale et al., 2013Do Vale, V. L., de Freitas, S. P., Martinez, C. B., & Costa, M. E. F. (2013). Aplicação das equações de equilíbrio morfológico de Julien ao trecho fluvial do reservatório da PCH Salto Paraopeba. In XX Simpósio Brasileiro de Recursos Hídricos, Bento Gonçalves: ABRH.).
Figure 6
Profile of the river channel obtained from the simulations of model calibration (Fundação Christiano Ottoni, 2013Fundação Christiano Ottoni – FCO, & Companhia Energética de Minas Gerais – CEMIG. (2013). Relatório Parcial de Atividades (03) - estudos da eficiência das barreiras físicas na retenção de sedimentos e proteção das tomadas d'água de SHPPS. Belo Horizonte: FCO.).
Figure 7
Primitive topography (Fundação Christiano Ottoni, 2013Fundação Christiano Ottoni – FCO, & Companhia Energética de Minas Gerais – CEMIG. (2013). Relatório Parcial de Atividades (03) - estudos da eficiência das barreiras físicas na retenção de sedimentos e proteção das tomadas d'água de SHPPS. Belo Horizonte: FCO.).
Figure 8
Bedload discharge for 10-yr., 100-yr and 1000-yr recurrence floods using original topography data (Fundação Christiano Ottoni, 2013Fundação Christiano Ottoni – FCO, & Companhia Energética de Minas Gerais – CEMIG. (2013). Relatório Parcial de Atividades (03) - estudos da eficiência das barreiras físicas na retenção de sedimentos e proteção das tomadas d'água de SHPPS. Belo Horizonte: FCO.).
Figure 9
Bedload discharge for 10-yr., 100-yr and 1000-yr recurrence floods using the silted reservoir topography.
Figure 10
Water profiles for the 10-yr, 100-yr and 1,000-yr floods.
Figure 11
Crushed rubber: A) cone formation for rubber, class R1 (1.70 mm to 2.00 mm); B) details of the angular shape of the material from different perspectives, class R2 (2.00 mm to 3.00 mm).
Figure 12
Top view of the reduced Model 02 of SHPP Salto Paraopeba (Fundação Christiano Ottoni, 2013Fundação Christiano Ottoni – FCO, & Companhia Energética de Minas Gerais – CEMIG. (2013). Relatório Parcial de Atividades (03) - estudos da eficiência das barreiras físicas na retenção de sedimentos e proteção das tomadas d'água de SHPPS. Belo Horizonte: FCO.) and physical Model 02, where the fiberglass is already installed.
Figure 13
Application of fiberglass over polystyrene blocks (Styrofoam).
Figure 14
Details of the acrylic segment of the gate and its manual activation.
Figure 15
Water levels over the dam (prototype) and detail of the construction of the dam, at the scale of the physical model (executed with a mix of mortar and crushed rubber).
Figure 16
Type of structural base: A) Mobile frame for the undistorted model; B) Fixed frame with tilting system and mechanical jacks for the distorted model.
Figure 17
The construction process of the morphology in the conventional method: A) Use of templates for the construction of the model (
Sharp, 1981Sharp, J. J. (1981). Hydraulic modelling. London: Butterworths.); B) Placement of the templates (
Water Research Laboratory, 2022Water Research Laboratory - UNSW. (2022). Coastal engineering: physical modelling. Retrieved in 2022, July 1, from https://www.wrl.unsw.edu.au/sites/wrl/files/uploads/ PDF/Coastal-Engineering-Physical-Modelling.pdf
https://www.wrl.unsw.edu.au/sites/wrl/fi...
); C) Physical model of the mobile bottom (
Luo et al., 2018Luo, M., Yu, H., Huang, E., Ding, R., & Lu, X. (2018). Two-dimensional numerical simulation study on bed-load transport in the fluctuating backwater area: a case-study reservoir in China. Water (Basel), 10(10), 1425.).
Figure 18
Types of machining Styrofoam blocks: A) Detail in the machining of the river channel; B) Variability in the machining of the steps in the same Styrofoam block piece.
Figure 17
The construction process of the morphology in the conventional method: A) Use of templates for the construction of the model (
Sharp, 1981Sharp, J. J. (1981). Hydraulic modelling. London: Butterworths.); B) Placement of the templates (
Water Research Laboratory, 2022Water Research Laboratory - UNSW. (2022). Coastal engineering: physical modelling. Retrieved in 2022, July 1, from https://www.wrl.unsw.edu.au/sites/wrl/files/uploads/ PDF/Coastal-Engineering-Physical-Modelling.pdf
https://www.wrl.unsw.edu.au/sites/wrl/fi...
); C) Physical model of the mobile bottom (
Luo et al., 2018Luo, M., Yu, H., Huang, E., Ding, R., & Lu, X. (2018). Two-dimensional numerical simulation study on bed-load transport in the fluctuating backwater area: a case-study reservoir in China. Water (Basel), 10(10), 1425.).
Figure 18
Types of machining Styrofoam blocks: A) Detail in the machining of the river channel; B) Variability in the machining of the steps in the same Styrofoam block piece.