Next Article in Journal
Land Use Change Influences Ecosystem Function in Headwater Streams of the Lowland Amazon Basin
Next Article in Special Issue
Numerical Modeling of the Effects of Toe Configuration on Throughflow in Rockfill Dams
Previous Article in Journal
Temporal and Spatial Variation Characteristics of Precipitation in the Haihe River Basin under the Influence of Climate Change
Previous Article in Special Issue
Energy Dissipation in Stilling Basins with Side Jets from Highly Convergent Chutes
Article

Hydrodynamic Performance and Design Evolution of Wedge-Shaped Blocks for Dam Protection against Overtopping

1
SERPA Dam Safety Research Group, Department of Civil Engineering: Hydraulics, Energy and Environment, E.T.S. de Ingenieros de Caminos, Canales y Puertos, Universidad Politécnica de Madrid (UPM), Profesor Aranguren s/n, 28040 Madrid, Spain
2
ACIS Innovation+Engineering S.L. (ACIS2in), Planeta Urano 13, P18 2ºA, 28983 Parla, Madrid, Spain
3
Centre Internacional de Metodes Numerics en Enginyeria (CIMNE), Campus Norte UPC, Gran Capitán s/n, 08034 Barcelona, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Giuseppe Pezzinga
Water 2021, 13(12), 1665; https://doi.org/10.3390/w13121665
Received: 30 April 2021 / Revised: 10 June 2021 / Accepted: 11 June 2021 / Published: 15 June 2021
(This article belongs to the Special Issue Dam Safety. Overtopping and Geostructural Risks)
Dam safety requirements have become stronger in recent years, highlighting, among other issues, the need to increase the discharge capacity of existing spillways and the protection of embankment dams against potential overtopping, which are particularly threatened by the hydrological consequences of climate change. The current economic situation requires solutions that ensure the safety of these infrastructures at an affordable cost. Wedge-shaped blocks (WSBs) are one of these solutions. A more detailed understanding of the performance of WSBs was the objective of this work and, based on this, the evolution of WSB design. An extensive empirical test program was performed, registering hydrodynamic pressures on the block faces and leakage through the joints between blocks and their air vents. A new WSB (named ACUÑA) with a different design of air vents was tested in comparison to Armorwedge™, which was used as a reference case. Moreover, the hydraulic behavior of the WSB was analyzed according to the saturation state of the granular drainage layer. The ACUÑA unit was designed with air vents in the upper part of the riser where the registered negative pressures were higher. Negative pressures were also measured at the base of the block when the granular drainage layer was not fully saturated. Finally, the beneficial effect of sealing some of the joints between blocks was quantified. View Full-Text
Keywords: wedge-shaped block; WSB; overtopping; dam protection; dam spillway; dam safety; ACUÑA wedge-shaped block; WSB; overtopping; dam protection; dam spillway; dam safety; ACUÑA
Show Figures

Figure 1

MDPI and ACS Style

Caballero, F.J.; Toledo, M.Á.; Moran, R.; San Mauro, J. Hydrodynamic Performance and Design Evolution of Wedge-Shaped Blocks for Dam Protection against Overtopping. Water 2021, 13, 1665. https://doi.org/10.3390/w13121665

AMA Style

Caballero FJ, Toledo MÁ, Moran R, San Mauro J. Hydrodynamic Performance and Design Evolution of Wedge-Shaped Blocks for Dam Protection against Overtopping. Water. 2021; 13(12):1665. https://doi.org/10.3390/w13121665

Chicago/Turabian Style

Caballero, Francisco J., Miguel Á. Toledo, Rafael Moran, and Javier San Mauro. 2021. "Hydrodynamic Performance and Design Evolution of Wedge-Shaped Blocks for Dam Protection against Overtopping" Water 13, no. 12: 1665. https://doi.org/10.3390/w13121665

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