Estimation and Measurement of Bed Material Shear Stresses in Erosion Rate Testing Devices
Publication: Journal of Hydraulic Engineering
Volume 138, Issue 11
Abstract
The sediment erosion rate flume (SERF) is used to evaluate various methods to estimate shear stresses in a flume-style erosion rate testing device. Results show that direct shear stress measurements most closely correspond to shear stress estimates obtained from the Colebrook equation using a roughness height of approximately 77% of the sediment particle diameter. Using pressure drops to estimate shear stress appears to underestimate rough sample (grain sizes ) stresses. Likewise, smooth-wall assumptions and analytical methods also appear to produce lower than expected results for similar heights. Colebrook equation results should be interpreted as “instrument specific” because of the different devices’ hydraulic diameters.
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Acknowledgments
The authors thank Dr. D. Max Sheppard, Professor Emeritus at the University of Florida, for his assistance with data analysis performed during this study. Thanks also to researchers at the Turner–Fairbank Highway Research Center Hydraulics Laboratory, especially Kornel Kerenyi, for their work with Hans Prechtel in shear stress sensor development. Funding for this project was provided by Florida Department of Transportation Contract No. BDK75-977 09, Rick Renna, P.E. Project Manager.
References
Annandale, G. W. (2006). Scour technology, Ing, D.ed., McGraw–Hill, New York.
Bloomquist, D., and Crowley, R. (2010). “Enhancement of FDOT’s SERF device and a study of erosion rates of rock, sand, and clay mixtures using FDOT’s RETA and SERF equipment.”, Florida DOT, Tallahassee, FL.
Briaud, J. L., Chen, H. C., Li, Y., Nurtjanhto, P., and Wang, J. (2004). “Pier and contraction scour in cohesive soils.”, Transportation Research Board, Washington, DC.
Briaud, J. L., Ting, F. C. K., Chen, H. C., Gudavalli, R., Perugu, S., and Wei, G. (1999). “SRICOS: Prediction of scour rate in cohesive soils at bridge piers.” J. Geotech. Geoenviron. Eng., 125(4), 237–246.
Briaud, J. L., Ting, F., Chen, H. C., Han, S.-W., and Kwak, K (2001). “Erosion function apparatus for scour rate prediction.” J. Geotech. Geoenviron. Eng., 127(2), 105–113.
McNeil, J., Taylor, C., and Lick, W. (1996). “Measurements of erosion of undisturbed bottom sediments with depth.” J. Hydraul. Eng., 122(6), 316–324.
Richardson, E. V., and Davis, S. R. (2001). “Evaluating scour at bridges.” fourth edition., 〈http://isddc.dot.gov/OLPFiles/FHWA/010590.pdf〉; (Sep. 2, 2008).
Roberts, J., Jepsen, R., Gotthard, D., and Lick, W. (1998). “Effects of particle size and bulk density on erosion of quartz particles.” J. Hydraul. Eng., 124, 1261–1267.
White, F. (1986). Fluid mechanics, McGraw–Hill, New York, 302–304.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 138 • Issue 11 • November 2012
Pages: 990 - 994
Copyright
© 2012 American Society of Civil Engineers.
History
Received: Apr 15, 2011
Accepted: Apr 9, 2012
Published online: Apr 12, 2012
Published in print: Nov 1, 2012
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