Evaluation the effect of attack angle of submerged vanes on reducing scour caused by contraction strand (Case study: contraction to 30 cm)
Keywords:
Angel of attack, Contraction scour, Depth of scour, Submerged vanesAbstract
this article is about the using of submerged vanes in conteraction of river and the evaluation of the their effects on contraction scour. results show that their performance is very good and the angle of 20 degree has best performance and has caused reducing of scour about 62%References
Department of Energy., 2009. Guide of river sediment containment methods, Iran. Issue: 350.
Briud, J.L., Chen, H.C., Nurtjahyo, P., Wang, J., 2004. Pier and Contraction Scour in Cohesive Soils. Transport. Res.
Board. Washington, D.C.
Ghorbani, B., Kells, J.A., 2008. Effect of submerged vanes on the scour occurring at a cylindrical pier. J. Hydraul.
Eng., J.46 (4), 123-134.
Macky, G.H., 1990. Survery of roading expenditure due to scour. Dep. Sci. Industr. Res., Hydrol.Center, Chr., New
Zealand, 09-90.
Odgaard, A.J., Kennedy, J.F., 1983. River-Bend protection by submerged vanes. J. Hydraul.Eng., ASCE. 1098. pp:
- 1173.
Olive, G, Hager, w., 2002. Temporal evolution of clear-water pier and abutment scour. J. Eng., ASCE J.128:811-820.
Omidi, F., Saneie, M., Fazlola, R., 2012. Impact of Spur Dikes and Submerged Vanes on diverted discharge and
maximum scour depth at mouth of intake, the Sixth Int. Confer.
Sco. Eros., Paris. ICSE6-291.p.1433-1439.
Parsmehr, M., Ghorbani, B., Radfar, M., 2011. Evaluate the scour place due to narrowing of channel and
effectiveness of submerged vanes on it. The Tenth Conference of Iranian Hydraulic, Guilan university, Guilan,
Iran., pp.127-137.
Raudkivi, A.J., Ettma, R., 1983. Clear-water scour at cylindrical piers. J. Hydraul. Eng., ASCE. 109 (3). pp. 338-350.
Strab, T.D., Over, T.M., 2010. Pier and Contraction Scour prediction in Cohesive Soils at Selected Bridges in
ILLINOIS.ILLINOIS Center Transport., 119.
U.S Bureau of Relamination., 1977. Design of Small Dams (3rded.).United States government printing office,
Washington.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2014 Marjan Parsmehr, Behzad Ghorbani
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.