The Effect of Submergence Percentage of the Submerged Piles on the Reduction of Scour in Bridge Abutments

Authors

1 MS Student in Water Engineering Islamic Azad University, Science and Research Branch, Hormozgan, Iran

2 Faculty Member at Institute of Soil Conservation and Watershed Management

3 Faculty Member at Hormozgan University

Abstract

Scour around hydraulic structures is an inevitable phenomenon . Recognition of this phenomenon and dealing with it is an issue considering which will ensure the project success . Local scour at piers has been reported as the most important factor in the destruction of the bridges . The use of submerged and non-submerged piles is one of the scour control methods . Submerged piles have been rarely used to assess scour . In the present study, the results of some tests with different flow rates and submergence percentages are given in the bridge abutment . The tests have been conducted at clear water conditions in a flume with length of 14m , width of 60cm and depth of 60cm . The results show that the increase in the submergence percentage of piles has a significant role in reducing pier scour.

Keywords

References

[1] Melville. BW, (1992). “Local scour at bridge abutments”, Journal Hydraulic Engineering, ASCE Vol. 118, No.4, pp.615-631.
[2] Arvanaqi, H., Farsadizadeh, D., Hosseinzadeh Dalir, A., Fakherifard, A. (2008). “Determination of appropriate dimensions of rectangular collar in the pier scour reduction”, Journal of Soil and Water Science, Volume 19, No.1.
[3] Mahbodi, A., Attari, J., Majdzadeh Tabatabaei, M.R. (2010). “Laboratory study of scour control resulted from horizontal submerged jets using stile”, Ferdowsi University of Mashhad, Iran.
[4] Poorhadi, M. H., Ghodsian, M. (2001).“protection of bridge fulcrum and breakwaters against local scouring”, International Conference on Hydraulic Structures, Department of Civil Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman.
[5] Agakhani Afshar, A.H., Maghfoor Maghrebi, M.; Ismaili, K. (2010).“Evaluation of the effect of pier crack and abutments geometry on the reduction of local scour”, Fifth National Congress of Civil Engineering, Ferdowsi University of Mashhad, Iran.
[6] Beheshti, A.A., Atai Ashtiani, B. (2008). “Numerical investigation of flow and scour pattern around the pile group”, Forth National Congress on Civil Engineering, Tehran University.
[7] Pirayesh, A., Sanei. M. (2011). “The impact of the distance of pile group from the bridge fulcrum in the reduction of local scour”, Tenth Iranian Conference on Hydraulics, University of Guilan,.
[8] Beheshti, A.A.; Atai Ashtiani, B. (2004). “Scouring at clear water conditions around the pier group”, First National Congress on Civil Engineering, Sharif University, Tehran.

Files

History

  • Receive Date: 13 September 2013
  • Revise Date: 30 September 2014
  • Accept Date: 22 October 2014

Share

How to cite

Statistics