Dimensionamiento de revestimientos con enrocados para protección de ríos contra procesos de erosión
DOI:
https://doi.org/10.35305/curiham.v32.e13Palavras-chave:
Dimensionamiento de Enrocados, Protección contra Erosión, RíosResumo
Se presenta el desarrollo de un método para dimensionamiento de revestimientos con enrocados, para contrarrestar procesos de erosión en ríos. El método propuesto se basa en el criterio de tensión de corte adimensional de Shields y permite determinar simultáneamente el diámetro d50 del enrocado y la distribución granulométrica del mismo. El método fue aplicado y comparado con los métodos de Escarameia y May (1992), Pilarczyk (1995) y Maynord (1995); utilizando datos de 33 experimentos realizados en un canal de laboratorio (Escarameia y May, 1992). La relación entre d50 calculado con el método propuesto y el d50 observado en los experimentos varía entre 0.7 y 1.3 para el 79 % del total de pruebas experimentales seleccionadas. Asimismo, con los métodos de Pilarczyk y Maynord, para el mismo rango de variación de la relación de d50, dicho porcentaje disminuye a 64 % y 61 % respectivamente. Además, con el método de Escarameia y May, la relación entre d50 calculado y d50 observado está entre 1 y 2.5 para el 100 % de los experimentos seleccionados. El método propuesto fue también utilizado para dimensionar el enrocado en una situación de diseño hipotética y para proteger un Dolphin de amarre en el río Paraná.
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Referências
Abt, S. R. y Johnson, T. L. (1991). Riprap Design for Overtopping Flow. Journal of Hydraulic Engineering, 117(8), 959-972. https://doi.org/10.1061/(ASCE)0733-9429(1991)117:8(959) DOI: https://doi.org/10.1061/(ASCE)0733-9429(1991)117:8(959)
Basile, P. A. (2018). Transporte de Sedimentos y Morfodinámica de Ríos Aluviales. Editora de la Universidad Nacional de Rosario (UNR Ed.), 515 p., Rosario, Argentina. http://hdl.handle.net/2133/10738
Breusers, H. N. C. (1986). Lectures Notes on Sediment Transport 1. International Course in Hydraulic Engineering. Delft, The Netherlands.
Breusers, H. N. C. y Raudkivi, A. J. (1991). Scouring. IAHR Hydraulic Structures Design Manual 2. Balkema, Rotterdam. https://doi.org/10.1201/9781003079477 DOI: https://doi.org/10.1201/9781003079477
Brunner, G. W. (2021). HEC-RAS River Analysis System – Hydraulic Reference Manual V6. USACE – Hydrologic Engineering Center (HEC). Report CPD-69, 520 p. https://www.hec.usace.army.mil/software/hec-ras/documentation/HEC-RAS_6.0_ReferenceManual.pdf
Dey, S. y Raikar, R. V. (2007). Clear-water scour at piers in sand beds with an armor layer of gravels. Journal of Hydraulic Engineering, 133(6), 703-711. https://doi.org/10.1061/(ASCE)0733-9429(2007)133:6(703) DOI: https://doi.org/10.1061/(ASCE)0733-9429(2007)133:6(703)
Escarameia, M. y May, R. W. P. (1992). Channel Protection: Turbulence Downstream of Structures. Report SR 313, HR Wallingford, London, UK. https://eprints.hrwallingford.com/id/eprint/322
Kironoto, B. A. y Graf, W. H. (1994). Turbulence characteristics in rough uniform open-channel flow. Proceedings of the Institution of Civil Engineers - Water Maritime and Energy, 106(4), 333–344. https://doi.org/10.1680/iwtme.1994.27234 DOI: https://doi.org/10.1680/iwtme.1994.27234
Lagasse, P. F., Clopper, P. E., Pagán-Ortiz, J. E., Zevenbergen, L. W., Arneson, L. A., Schall, J. D. y Girard, L. G. (2009a). Bridge Scour and Stream Instability Countermeasures: Experience, Selection and Design Guidance. Volume 1. Hydraulic Engineering Circular Nº 23 (HEC 23). Publication FHWA-NHI-09-111, 3rd Edition, Federal Highway Administration (FHWA), Washington, DC. https://www.fhwa.dot.gov/engineering/hydraulics/pubs/09111/09111.pdf
Lagasse, P. F., Clopper, P. E., Pagán-Ortiz, J. E., Zevenbergen, L. W., Arneson, L. A.; Schall, J. D. y Girard, L. G. (2009b). Bridge Scour and Stream Instability Countermeasures: Experience, Selection and Design Guidance. Volume 2. Hydraulic Engineering Circular Nº 23 (HEC 23). Publication FHWA-NHI-09-112, 3rd Edition, Federal Highway Administration (FHWA), Washington, DC. https://www.fhwa.dot.gov/engineering/hydraulics/pubs/09111/09111.pdf
Lagasse, P. F., Clopper, P. E., Zevenbergen, L. W. y Ruff, J. F. (2006). Riprap Design Criteria, Recommended Specifications and Quality Control. National Cooperative Highway Research Program - NCHRP Report 568, Washington, DC. https://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_rpt_568.pdf
Lauchlan, C. S., Melville, B. W. y Coleman, S. E. (2000). Sizing Riprap to Protect Against Local Scouring at Bridge Piers. Proceedings, International Symposium on Scour of Foundations (IS-SCOUR 2000), Melbourne, Australia, pp. 60–68.
May, R. W., Ackers, P. y Kirby, A. M. (2002). Manual on Scour at Bridges and other Hydraulic Structures. Construction Industry Research and Information Assoc., Manual C551, London, UK. https://cis.ihs.com/CIS/document/307911
Maynord, S. T. (1993). U. S. Army Corps of Engineers Riprap Design for Flood Channels. Transportation Research Record, 1420, 14-22. Transportation Research Board. https://onlinepubs.trb.org/Onlinepubs/trr/1993/1420/1420-003.pdf
Maynord, S. T. (1995). Corps Riprap Design Guidance for Channel Protection. En C. R. Thorne, S. R. Abt, F. B. J. Barends, S. T. Maynord y K. W. Pilarczyk. (Eds.), River, Coastal and Shoreline Protection: Erosion Control Using Riprap and Armourstone. John Wiley & Sons, Ltd., Chichester, U.K.
Melville, B. W., Parola, A. C. y Coleman, S. E. (2008). Bridge-Scour Prevention and Countermeasures. En M. H. García (Ed.), Sedimentation Engineering: Processes, Measurements, Modeling and Practice, Chapter 11, 543-577.
Manual and Reports on Engineering Practice Nº 110, ASCE. https://doi.org/10.1061/9780784408148.ch11 DOI: https://doi.org/10.1061/9780784408148.ch11
Mishra, S. K. (1998). Riprap Design for Overtopped Embankments [Ph.D. Dissertation]. Department of Civil Engineering, Colorado State University, Fort Collins, CO.
Nezu, I. (1977). Turbulence Structure in Open-Channel Flows [Doctoral Thesis]. Department of Civil Engineering, Kyoto University, Japan, 156 p. DOI: https://doi.org/10.2208/jscej1969.1977.261_67
Nezu, I. y Rodi, W. (1986). Open channel flow measurements with a Laser Doppler anemometer. Journal of Hydraulic Engineering, 112(5), 335-355. https://doi.org/10.1061/(ASCE)0733-9429(1986)112:5(335) DOI: https://doi.org/10.1061/(ASCE)0733-9429(1986)112:5(335)
Oswalt, N. R., Buck, L. E., Hepler, T. E. y Jackson, H. E. (1994). Alternatives for Overtopping Protection of Dams. ASCE, Task Committee on Overtopping Protection of the Hydraulics Division, New York. https://books.google.com.ar/books/about/Alternatives_for_Overtopping_Protection.html?id=B1xStZFk9oMC&redir_esc=y
Pagán-Ortiz, J. E. (1991). Stability of Rock Riprap for Protection at Toe of Abutments at Floodplain. Transportation Research Record, 1350, 34–43. Transportation Research Board. https://onlinepubs.trb.org/Onlinepubs/trr/1992/1350/1350-006.pdf
Pilarczyk, K. W. (1984). Interaction Water Motion and Closing Elements. En J. C. Huis in 't Veld et al. (Eds.), The Closure of Tidal Basins. Closing of estuaries, tidal inlets and dike breaches (2.4.8 Stability of rock-fill structures, pp. 367-386). Delft University Press, The Netherlands. https://resolver.tudelft.nl/uuid:fb90981f-5a61-479f-9b09-ab59cac1612d
Pilarczyk, K. W. (1995). Simplified unification of stability formulae for revetment. En C. R. Thorne, S. R. Abt, F. B. J. Barends, S. T. Maynord y K. W. Pilarczyk (Eds.), River, Coastal and Shoreline Protection, Wiley, New York.
Richardson, E. V. y Davis, S. R. (1995). Evaluating Scour at Bridges. HEC Nº 18, 3rd Edition. FHWA IP-90-017, Federal Highway Administration, U.S. Department of Transportation, Washington, D.C. https://rosap.ntl.bts.gov/view/dot/54089
Shields, A. F. (1936a). Aplicaciones de la mecánica de similitud y la investigación sobre turbulencia al movimiento de sedimentos de fondo. [Tesis Doctoral en Ingeniería]. Universidad Técnica de Berlín (en Alemán).
Shields, A. F. (1936b). Application of similarity principles and turbulence research to bed-load movement. Hydrodynamics Laboratory Publ. Nº 167, W.P. Ott, and J.C. van Uchelen, trans., USDA, Soil Conservation Service Cooperative Laboratory, California Institute of Technology, Pasadena. https://resolver.tudelft.nl/uuid:a66ea380-ffa3-449b-b59f-38a35b2c6658
Stevens, M. A. y Simons, D. B. (1971). Stability Analysis for Coarse Granular Material on Slopes. En Shen, H. W. (ed.), River Mechanics. Water Resources Publications, Fort Collins, CO.
Wang, S. Y. y Shen, H. W. (1985). Incipient Sediment Motion and Riprap Design. Journal of Hydraulic Engineering, 111(3), 520–538. https://doi.org/10.1061/(ASCE)0733-9429(1985)111:3(520) DOI: https://doi.org/10.1061/(ASCE)0733-9429(1985)111:3(520)
Wittler, R. J. y Abt, S. R. (1990). The Influence of Uniformity on Riprap Stability. Hydraulic Engineering Vol. 1, Proceedings of the ASCE National Conference, San Diego, CA, July 30-August 3, 251-265.
Wolman, M. G. (1954). A Method of Sampling Coarse Bed Material. Eos, Transactions American Geophysical Union, 35(6), 951-956. https://doi.org/10.1029/TR035i006p00951 DOI: https://doi.org/10.1029/TR035i006p00951
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