Types I, II, III, and IV Stilling Basin Performance for Stepped Chutes Applied to Embankment Dams
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Abstract
Scientists at the USDA Agricultural Research Service (ARS) Hydraulic Engineering Research Unit (HERU) conducted research on physical models of stilling basins (i.e., Types I, II, III, and IV) associated with stepped chutes to evaluate performance. Tests were conducted with naturally developing unit discharges () descending a 3(H):1(V) stepped chute flume designed with 0.15-m step heights at near prototype scale and Froude numbers near the stepped chute toe ranging from . Data and visual observations indicated that dissipation features like floor blocks, the end sill, or a dentated end sill effectively reduced wave oscillations and lessened the impact of propagating waves downstream. The study data appear to agree with other published data for stilling basins associated with smooth chutes; thus, design engineers should have confidence in applying the US Bureau of Reclamation (USBR) stilling basin design criteria to basins associated with stepped chutes. Pressure profiles indicated positive values relative to stilling basin floor elevation along the length of all stilling basins. Additionally, pressure peaked near the basin entrance, the floor blocks, and the end sill.
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Acknowledgments
The USDA is an equal opportunity employer and provider. Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
References
Bakhmeteff, B. A., and A. E. Matzke. 1936. “The hydraulic jump in terms of dynamic similarity.” Proc. Am. Soc. Civ. Eng. Trans. 101 (1): 630–647. https://doi.org/10.1061/TACEAT.0004708.
Boes, R. M., and W. H. Hager. 2003. “Two-phase flow characteristics of stepped spillways.” J. Hydraul. Eng. 129 (9): 661–670. https://doi.org/10.1061/(ASCE)0733-9429(2003)129:9(661).
Bradley, J. N., and A. J. Peterka. 1957a. “The hydraulic design of stilling basins: Hydraulic jumps on a horizontal apron (Basin I).” J. Hydraul. Div. 83 (5): 1401-1–1401-24. https://doi.org/10.1061/JYCEAJ.0000126.
Bradley, J. N., and A. J. Peterka. 1957b. “The hydraulic design of stilling basins: High dams, earth dams, and large canal structures (Basin II).” J. Hydraul. Div. 83 (5): 1402-1–1402-14. https://doi.org/10.1061/JYCEAJ.0000120.
Bradley, J. N., and A. J. Peterka. 1957c. “The hydraulic design of stilling basins: short stilling basin for canal structures, small outlet works, and small spillways (Basin III).” J. Hydraul. Div. 83 (5): 1403-1–1403-22. https://doi.org/10.1061/JYCEAJ.0000125.
Bradley, J. N., and A. J. Peterka. 1957d. “The hydraulic design of stilling basins: Stilling basin and wave suppressors for canal structures, outlet works, and diversion dams (Basin IV).” J. Hydraul. Div. 83 (5): 1404-1–1404-20. https://doi.org/10.1061/JYCEAJ.0000124.
Bradley, J. N., and A. J. Peterka. 1957e. “The hydraulic design of stilling basins: Stilling basin with sloping apron (Basin V).” J. Hydraul. Div. 83 (5): 1405-1–1405-32. https://doi.org/10.1061/JYCEAJ.0000118.
Bradley, J. N., and A. J. Peterka. 1957f. “The hydraulic design of stilling basins: Small basins for pipe or open channel outlets—No tail water required (Basin VI).” J. Hydraul. Div. 83 (5): 1406-1–1406-17. https://doi.org/10.1061/JYCEAJ.0000122.
Cardoso, G., I. Meireles, and J. Matos. 2007. “Pressure head along baffle stilling basins downstream of steeply sloping stepped chutes.” In Proc., 32nd IAHR Congress. Beijing: International Association of Hydro-Environment Engineering and Research.
Champagne, T. M., B. D. Barkdoll, and J. A. Gonzalez-Castro. 2017. “Experimental study of scour induced by temporally oscillating hydraulic jump in a stilling basin.” J. Irrig. Drain. Eng. 143 (12): 04017051. https://doi.org/10.1061/(ASCE)IR.1943-4774.0001273.
Chanson, H. 2002. The Hydraulics of stepped chutes and spillways. Steenwijk, Netherlands: A. A. Balkema.
Cheng, C. K., Y. C. Tai, and Y. C. Jin. 2017. “Particle image velocity measurement and mesh-free method modeling study of forced hydraulic jumps.” J. Hydraul. Eng. 143 (9): 04017028. https://doi.org/10.1061/(ASCE)HY.1943-7900.0001325.
Chow, V. T. 1959. Open-channel hydraulics. Boston: McGraw-Hill.
Felder, S., and H. Chanson. 2018. “Air-water flow patterns of hydraulic jumps on uniform beds macroroughness.” J. Hydraul. Eng. 144 (3): 04017068. https://doi.org/10.1061/(ASCE)HY.1943-7900.0001402.
Frizell, K. W., and N. C. Cox. 2009. “Studies evaluate cavitation potential of baffle blocks within a stilling basin on a novel stepped spillway design.” In Proc., 33th IAHR Congress. Beijing: International Association of Hydro-Environment Engineering and Research.
Frizell, K. W., F. M. Renna, and J. Matos. 2013. “Cavitation potential of flow on stepped spillways.” J. Hydraul. Eng. 139 (6): 630–636. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000715.
Frizell, K. W., C. Svoboda, and J. Matos. 2016. “Performance of Type III stilling basins for stepped spillways.” In Proc., Protections 2016: 2nd Int. Seminar on Dam Protection Against Overtopping. Beijing: International Association of Hydro-Environment Engineering and Research.
Hager, W. H., R. Bremen, and N. Kawagoshi. 1990. “Classical hydraulic jump: Length of roller.” J. Hydraul. Res. 28 (5): 591–608. https://doi.org/10.1080/00221689009499048.
Hager, W. H., and R. Sinniger. 1985. “Flow characteristics of the hydraulic jump in a stilling basin with an abrupt bottom rise.” J. Hydraul. Res. 23 (2): 101–113. https://doi.org/10.1080/00221688509499359.
Hunt, S. L., and K. C. Kadavy. 2018a. “USBR Type III and Type IV stilling basin and rock apron associated with stepped chutes.” Appl. Eng. 34 (2): 389–394. https://doi.org/10.13031/aea.12638.
Hunt, S. L., and K. C. Kadavy. 2018b. “Preliminary results for embankment dam stepped spillway stilling basin research.” In Proc., 7th IAHR Int. Symp. on Hydraulic Structures, edited by D. Bung, and B. Tullis. Aachen, Germany. https://doi.org/10.15142/T3CQ00(978-0-692-13277-7).
Hunt, S. L., K. C. Kadavy, and G. J. Hanson. 2014. “Simplistic design methods for moderate-sloped stepped chutes.” J. Hydraul. Eng. 140 (12): 04014062. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000938.
Meireles, I., J. Matos, and J. Falcão Del Melo. 2005. “Pressure head and residual energy in skimming flow on steeply sloping stepped spillways.” In Proc., 31st IAHR Congress, 2654–2663. Ft. Collins, CO: Colorado State Univ.
Ohtsu, I., Y. Yasuda, and M. Takahashi. 2004. “Flow characteristics of skimming flows in stepped channels.” J. Hydraul. Eng. 130 (9): 860–869. https://doi.org/10.1061/(ASCE)0733-9429(2004)130:9(860).
Padulano, R., O. Fecarotta, G. Del Giudice, and A. Carravetta. 2017. “Hydraulic design of a USBR Type-II stilling basin.” J. Irrig. Drain. Eng. 143 (5): 04017001. https://doi.org/10.1061/(ASCE)IR.1943-4774.0001150.
Pagliara, S., and M. Palermo. 2012. “Effect of stilling basin geometry on the dissipative process in the presence of block ramps.” J. Irrig. Drain. Eng. 138 (11): 1027–1031. https://doi.org/10.1061/(ASCE)IR.1943-4774.0000505.
Simões, A. L. A., H. E. Schulz, and R. D. Porto. 2010. “Stepped and smooth spillways: Resistance effects on stilling basin lengths.” J. Hydraul. Res. 48 (3): 329–337. https://doi.org/10.1080/00221686.2010.481853.
USBR (US Bureau of Reclamation). 1973. Design of small dams. Denver, CO: US Government Printing Office.
Valero, D., D. B. Bung, B. Crookston, and J. Matos. 2016. “Numerical investigation of USBR Type III stilling basin performance downstream of smooth and stepped spillways.” In Proc., 6th IAHR Int. Symp. on Hydraulic Structures. Beijing: International Association of Hydro-Environment Engineering and Research.
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Received: Nov 5, 2019
Accepted: Nov 18, 2020
Published online: Mar 26, 2021
Published in print: Jun 1, 2021
Discussion open until: Aug 26, 2021
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