Effect of Meander on Bridge Pier Scour

Updata:01-01-1970

Source:
By:Mohammad Athar, M.K. Sabiree, H. Athar

DOI: https://doi.org/10.30564/hsme.v3i2.4079

Abstract:
Lots of work regarding the scour around bridge piers in straight channel
have been done in the past by many researchers. Many factors which affect
scour around piers such as shape of piers, size, positioning and orientation
etc. have been studied in detail by them. However, similar studies in
meandering channels are scanty. Very few researchers have studied the
effect of angular displacement which has considerable effects of scour
around bridge piers.
In this paper an attempt has been made to carry out a detailed study of
angular displacement on scour. A constant diameter bridge pier of circular
shape has been tested in a meandering channel bend with bend angle as 800 .
The test bed was prepared by using uniform sand having d50 as 0.27 mm
and run was taken for a discharge of 2.5 l/s.
References:

[1] Ajeel S., Gholami A., Bonakdari H., Bagheri N., Akhtari A. A., 2016. Comparison of flow pattern in a 60° sharp bend by using Fluent software and artificial neural network, support Vector Machine Methods, Mesopotamia Environmental Journal, Vol. 2, No. 2, pp. 27-39. [2] Bruce Melville, 2008. The Physics of Local scour at Bridge Piers, Fourth International Conference on Scour and Erosion, pp. 28-40. [3] Debnath K. and Chaudhuri S., 2010. Bridge Pier Scour in Clay-Sand Mixed Sediments at Near-Threshold Velocity for Sand, Journal of Hydraulic Engineering, Vol. 136, No. 9, pp. 597-906. [4] Ettema, R., 1980. Scour at Bridge Piers, Report No.216, School of Engg., The University of Auck land, Auckland, Newzealand, p. 572. [5] Emami Y., Salamatian S. A and Ghodsian M., 2008. Scour at Cylindrical Bridge Pier in a 180 Degree Channel Bend, Fourth International Conference on Scour and Erosion, pp.256-262. [6] Gholami A., Akhtari A. A., Minatour Y., Bonakdari H., and Javadi A. A, 2014. Experimental and Numerical Study on Velocity Fields and Water Surface Profile in a Strongly-Curved 900 Open Channel Bend, Journal of Engineering Applications of Computational Fluid Mechanics, Vol. 8, No. 3, pp. 447-461. [7] Garde R. J and Raju K. G. R., 2014. Mechanics of Sediment Transportation and Alluvial Stream Problems, New Age International (P) Ltd,. Publishers. [8] Garde, R. J., 1961. Local Scour variation at Bridge Piers in Alluvial channels, University of Roorkee, Journal, Vol. No. 1, pp. 101-116. [9] Ibrahim H. Elsebaie, 2013. An Experimental Study of Local Scour Around Circular Bridge Pier in Sand Soil, International Journal of Civil & Environmental Engineering IJCEE- IJENS, Vol.13, No, 01, pp. 23-28. [10] Masjedi A, Bejestan M.S. and Kazemi H., 2010. Effects of Bridge Pier Position in a 180 Degree Flume Bend on Scour Hole Depth, Journal of Applied sciences, vol.10, No.8, pp. 670-675. [11] Matooq, J. S. and Mahmood, E.S., 2018. Local Scour around single Central Circular Bridge Pier located within 180o Bend, ARPN Journal of Engineering and Applied Sciences, Vol.13, No.5, pp.1639 -1648. [12] Rossell R.P and Ting F.C.K, 2013. Hydraulic and Contraction Scour Analysis of a Meandering Channel: James River Bridges near Mitchell, South Dakota, Journal of Hydraulic Engineering, Vol. 139, No. 12, pp.1286-1296. [13] Shen, H. W., Schneider, V.R. and Karakiss, 1969. Local Scour around Bridge Piers, ASCE, Vol. 95, HYS, pp. 1919-1940. [14] Ting F.C.K. and Briaud J. L., 2001. Flume Tests for Scour in Clay at Circular Piers, Journal of Hydraulic Engineering, Vol. 127, No. 11, pp. 969- 978.

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