Abstract
An accurate prediction of scour depth around bridge piers is crucial for economical and safe design of bridge pier foundations. The main objective of the present study is to identify the influencing cohesive parameters and their effects on the local scour processes around bridge piers, depending on various proportions of clay–sand–gravel mixtures. Twenty experimental tests were performed in a channel 25 m long and 1.0 m wide for this purpose. Runs lasted from 16 to 40 h. It was noted from the experimental work that an increment of clay fraction significantly reduces the scour depth around bridge piers. It was also observed that the initiation of scour occurred at the sides of the pier where separation of flow occurred. Typically, the maximum scour depth at the equilibrium stage was still observed at the sides of the pier. A dimensional analysis was used to propose mathematical relationships assessing the temporal scour depth variation at the wake and sides of the pier. The developed relationships yielded reasonable results with maximum error of two folds for 95.22% of total data sets for scour depth at the wake and 92.57% of the total data sets for scour depth at the sides of the pier.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
This paper is part of the Ph.D. research work of A. S. Lodhi, conducted at the Civil Engineering Department, Indian Institute of Technology, Roorkee, India under the guidance of late Prof. U. C. Kothyari. The authors are thankful to Prof. U. C. Kothyari for choosing a research problem on a current burning issue and providing excellent guidance and painstaking efforts throughout the present research work.
References
Ansari, S. A., U. C. Kothyari, and K. G. Ranga Raju. 2002. “Influence of cohesion on scour around bridge piers.” J. Hydraul. Res. 40 (6): 717–729. https://doi.org/10.1080/00221680209499918.
Ansari, S. A., U. C. Kothyari, and K. G. Ranga Raju. 2003. “Influence of cohesion on scour under submerged circular vertical jet.” J. Hydraul. Eng. 129 (12): 1014–1019. https://doi.org/10.1061/(ASCE)0733-9429(2003)129:12(1014).
Azamathulla, H. M. 2012. “Gene expression programming for prediction of scour depth downstream of sills.” J. Hydrol. 460–461 (Aug): 156–159. https://doi.org/10.1016/j.jhydrol.2012.06.034.
Azamathulla, H. M., A. A. Ghani, N. A. Zakaria, and A. Guven. 2010. “Genetic programming to predict bridge pier scour.” J. Hydraul. Eng. 136 (3): 165–169. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000133.
Barbhuiya, A. K., and T. Chakma. 2012. “Effect of consolidation on local scour around bridge pier in cohesive soil.” Int. J. Eng. Res. Technol. 1 (7): 1–9.
Brandimarte, L., A. Montanari, J. L. Briaud, and P. D’Odorico. 2006. “Stochastic flow analysis for predicting scour of cohesive soils.” J. Hydraul. Eng. 132 (5): 493–500. https://doi.org/10.1061/(ASCE)0733-9429(2006)132:5(493).
Briaud, J. L., H. C. Chen, K. W. Kwak, S. W. Han, and F. C. K. Ting. 2001. “Erosion function apparatus for scour rate predictions.” J. Geotech. Geoenviron. Eng. 127 (2): 105–113. https://doi.org/10.1061/(ASCE)1090-0241(2001)127:2(105).
Briaud, J. L., F. C. K. Ting, S. C. Chen, R. Gudavalli, S. Perugu, and G. Wei. 1999. “SRICOS: Prediction of scour rate in cohesive soils at bridge piers.” J. Geotech. Geoenviron. Eng. 125 (4): 237–246. https://doi.org/10.1061/(ASCE)1090-0241(1999)125:4(237).
Chaudhuri, S., and K. Debnath. 2013. “Observations on initiation of pier scour and equilibrium scour hole profiles in cohesive sediments.” ISH J. Hydraul. Eng. 19 (1): 27–37. https://doi.org/10.1080/09715010.2012.749011.
Debnath, K., and S. Chaudhuri. 2010a. “Bridge pier scour in clay-sand mixed sediments at near-threshold velocity for sand.” J. Hydraul. Eng. 136 (9): 597–609. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000221.
Debnath, K., and S. Chaudhuri. 2010b. “Laboratory experiments on local scour around cylinder for clay and clay-sand mixed beds.” Eng. Geol. 111 (1–4): 51–61. https://doi.org/10.1016/j.enggeo.2009.12.003.
Dey, S., A. Helkjær, B. M. Sumer, and J. Fredsøe. 2011. “Scour at vertical piles in sand-clay mixtures under waves.” J. Waterway, Port, Coastal, Ocean Eng. 137 (6): 331–334. https://doi.org/10.1061/(ASCE)WW.1943-5460.0000095.
Ettema, R., B. W. Melville, and B. Barkdoll. 1998. “Scale effect in pier-scour experiments.” J. Hydraul. Eng. 124 (6): 639–642. https://doi.org/10.1061/(ASCE)0733-9429(1998)124:6(639).
Hamidifar, H., and M. H. Omid. 2017. “Local scour of cohesive beds downstream of a rigid apron.” Can. J. Civ. Eng. 44 (11): 935–944. https://doi.org/10.1139/cjce-2016-0398.
Hanson, G. J., and S. L. Hunt. 2006. “Lessons learned using laboratory JET method to measure soil erodibility of compacted soils.” Appl. Eng. Agric. 23 (3): 305–312. https://doi.org/10.13031/2013.22686.
Hosny, H. M. 1995. “Experimental study of local scour around circular bridge piers in cohesive soils.” Ph.D. thesis, Dept. of Civil Engineering, Colorado State Univ.
Jain, R. K., and U. C. Kothyari. 2009. “Cohesion influences on erosion and bed load transport.” Water Resour. Res. 45 (6): W06410. https://doi.org/10.1029/2008WR007044.
Jain, R. K., and U. C. Kothyari. 2010. “Influence of cohesion on suspended load transport of non-uniform sediments.” J. Hydraul. Res. 48 (1): 33–43. https://doi.org/10.1080/00221681003696317.
Kamojjala, S., N. P. Gattu, A. C. Parola, and D. J. Hagerty. 1995. “Analysis of 1993 upper Mississippi flood highway infrastructure damage.” In Vol. 2 of Proc., 1st Int. Conf. on Water Resources Engineering, 1061–1065. New York: ASCE.
Kand, C. V. 1993. Vol. 9 and 10 of Pier scour in sand, clay and boulders. New Delhi, India: Bridge Engineering.
Kho, K. T. 2004. “An experimental study of local scour around circular bridge piers in cohesive soils.” Ph.D. thesis, School of Civil Engineering and Geosciences, Univ. of Newcastle Upon Tyne.
Kothyari, U. C. 2007. “Indian practice on estimation of scour around bridge piers: A comment.” Sadhana 32 (3): 187–197. https://doi.org/10.1007/s12046-007-0017-7.
Kothyari, U. C., W. H. Hager, and G. Oliveto. 2007. “Generalized approach for clear-water scour at bridge foundation elements.” J. Hydraul. Eng. 133 (11): 1229–1240. https://doi.org/10.1061/(ASCE)0733-9429(2007)133:11(1229).
Kothyari, U. C., and R. K. Jain. 2008. “Influence of cohesion on the incipient motion condition of sediment mixtures.” Water Resour. Res. 44 (4): W04410. https://doi.org/10.1029/2007WR006326.
Kothyari, U. C., and R. K. Jain. 2010a. “Erosion characteristics of cohesive sediment mixtures.” In Proc., Int. Conf. on Fluvial Hydraulics: River Flow 2010, edited by A. Dittrich, K. Koll, J. Aberle, and P. Geisenhainer, 815–820. Karlsruhe, Germany: Bundesanstalt für Wasserbau.
Kothyari, U. C., and R. K. Jain. 2010b. “Experimental and numerical investigations on degradation of channel bed of cohesive sediment mixtures.” Water Resour. Res. 46 (12): W12534. https://doi.org/10.1029/2010WR009184.
Kothyari, U. C., A. Kumar, and R. K. Jain. 2014. “Influence of cohesion on river bed scour in the wake region of piers.” J. Hydraul. Eng. 140 (1): 1–13. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000793.
Kumar, A. 2011. “Scour around circular piers founded in clay-sand-gravel sediment mixtures.” Ph.D. thesis, Dept. of Civil Engineering, Indian Institute of Technology.
Kurdistani, S. M., and S. Pagliara. 2017. “Experimental study on cross-vane scour morphology in curved horizontal channels.” J. Irrig. Drain. Eng. 143 (7): 04017013. https://doi.org/10.1061/(ASCE)IR.1943-4774.0001183.
Link, O., K. Klischies, G. Montalva, and S. Dey. 2013. “Effects of bed compaction on scour at piers in sand-clay mixtures.” J. Hydraul. Eng. 139 (9): 1013–1019. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000762.
Lodhi, A. S., R. K. Jain, and P. K. Sharma. 2016. “Influence of cohesion on scour around submerged dike founded in clay–sand–gravel mixtures.” ISH J. Hydraul. Eng. 22 (1): 70–87. https://doi.org/10.1080/09715010.2015.1075916.
Lodhi, A. S., R. K. Jain, P. K. Sharma, and N. Karna. 2018. “Influence of cohesion on scour at wake of partially submerged spur dikes in cohesive sediment mixtures.” ISH J. Hydraul. Eng. 27 (2): 123–134. https://doi.org/10.1080/09715010.2018.1525325.
Lodhi, A. S., P. K. Sharma, R. K. Jain, and N. Karna. 2014. “Temporal evolution of clear water bridge pier scour.” In Proc., Int. Civil Engineering Symp., ICES’ 2014, 252–260. Chennai, India: VIT Vellore.
Mazurek, K. A. 2001. “Scour of clay by jets.” Ph.D. dissertation, Dept. of Civil and Environmental Engineering, Univ. of Alberta.
Mazurek, K. A., N. Rajaratnam, and D. C. Sego. 2001. “Scour of cohesive soil by submerged circular turbulent impinging jets.” J. Hydraul. Eng. 127 (7): 598–606. https://doi.org/10.1061/(ASCE)0733-9429(2001)127:7(598).
Molinas, A., S. Jones, and M. Hosny. 1999. “Effects of cohesive material properties on local scour around piers.” Transp. Res. Rec. 1690 (1): 164–174. https://doi.org/10.3141/1690-19.
Oliveto, G., and W. H. Hager. 2002. “Temporal evolution of clear-water pier and abutment scour.” J. Hydraul. Eng. 128 (9): 811–820. https://doi.org/10.1061/(ASCE)0733-9429(2002)128:9(811).
Oliveto, G., and W. H. Hager. 2005. “Further results to time-dependent local scour at bridge elements.” J. Hydraul. Eng. 131 (2): 97–105. https://doi.org/10.1061/(ASCE)0733-9429(2005)131:2(97).
Oliveto, G., and W. H. Hager. 2014. “Morphological evolution of dune-like bed forms generated by bridge scour.” J. Hydraul. Eng. 140 (5): 06014009. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000853.
Pagliara, S., and M. Palermo. 2011. “Effect of stilling basin geometry on clear water scour morphology downstream of a block ramp.” J. Irrig. Drain. Eng. 137 (9): 593–601. https://doi.org/10.1061/(ASCE)IR.1943-4774.0000331.
Pandey, M., H. M. Azamathulla, S. Chaudhuri, J. H. Pu, and H. Pourshahbaz. 2020a. “Reduction of time-dependent scour around piers using collars.” Ocean Eng. 213 (Oct): 107692. https://doi.org/10.1016/j.oceaneng.2020.107692.
Pandey, M., W. H. Lam, Y. Cui, M. A. Khan, U. K. Singh, and Z. Ahmad. 2019. “Scour around spur dike in sand-gravel mixture bed.” Water 11 (7): 1417. https://doi.org/10.3390/w11071417.
Pandey, M., G. Oliveto, J. H. Pu, P. K. Sharma, and C. S. P. Ojha. 2020b. “Pier scour prediction in non-uniform gravel beds.” Water 12 (6): 1696. https://doi.org/10.3390/w12061696.
Pandey, M., P. K. Sharma, Z. Ahmad, U. K. Singh, and N. Karna. 2018. “Three-dimensional velocity measurements around bridge piers in gravel bed.” Mar. Georesour. Geotechnol. 36 (6): 663–676. https://doi.org/10.1080/1064119X.2017.1362085.
Pandey, M., M. Valyrakis, M. Qi, A. Sharma, and A. S. Lodhi. 2020c. “Experimental assessment and prediction of temporal scour depth around a spur dike.” Int. J. Sediment Res. 36 (1): 17–28. https://doi.org/10.1016/j.ijsrc.2020.03.015.
Parola, A. C., D. J. Hagerty, D. S. Mueller, B. W. Melville, G. Parker, and J. S. Usher. 1997. “The need for research on scour at bridge crossings.” In Vol. 1 of Proc., 27th Congress of the Int. Association for Hydraulic Research, 124–129. San Francisco. Water Resources Engineering Hydraulics.
Peerless, S. J. 1967. Basic fluid mechanics. Oxford, NY: Pergamon Press.
Pourshahbaz, H., S. Abbasi, M. Pandey, J. H. Pu, P. Taghvaei, and N. Tofangdar. 2020. “Morphology and hydrodynamics numerical simulation around groynes.” ISH J. Hydraul. Eng. 1–9. https://doi.org/10.1080/09715010.2020.1830000.
Pu, J. H., M. Pandey, and P. R. Hanmaiahgari. 2020. “Analytical modelling of sidewall turbulence effect on streamwise velocity profile using 2D approach: A comparison of rectangular and trapezoidal open channel flows.” J. Hydro-environ. Res. 32 (Oct): 17–25. https://doi.org/10.1016/j.jher.2020.06.002.
Ram Babu, M., S. N. Rao, and V. Sundar. 2002. “A simplified instrumentation for measuring scour in silty clay around a vertical pile.” Appl. Ocean Res. 24 (6): 355–360. https://doi.org/10.1016/S0141-1187(03)00027-0.
Robinson, K. M., and G. J. Hanson. 1995. “Large-scale headcut erosion testing.” Trans. ASABE 38 (2): 429–434. https://doi.org/10.13031/2013.27849.
Singh, R. K., M. Pandey, J. H. Pu, S. Pasupuleti, and V. G. K. Villuri. 2020. “Experimental study of clear-water contraction scour.” Water Supply 20 (3): 943–952. https://doi.org/10.2166/ws.2020.014.
Singh, U. K., Z. Ahmad, A. Kumar, and M. Pandey. 2019. “Incipient motion for gravel particles in cohesionless sediment mixtures.” Iran. J. Sci. Technol. Trans. Civ. Eng. 43 (2): 253–262. https://doi.org/10.1007/s40996-018-0136-x.
Ting, F. C. K., J. -L. Briaud, H. C. Chen, R. Gudavalli, S. Perugu, and G. Wei. 2001. “Flume tests for scour in clay at circular piers.” J. Hydraul. Eng. 127 (11): 969–978. https://doi.org/10.1061/(ASCE)0733-9429(2001)127:11(969).
Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 147 • Issue 10 • October 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Jan 27, 2021
Accepted: Jun 17, 2021
Published online: Aug 14, 2021
Published in print: Oct 1, 2021
Discussion open until: Jan 14, 2022
ASCE Technical Topics:
- Bridge design
- Bridge foundations
- Caissons
- Clays
- Cohesive soils
- Design (by type)
- Engineering fundamentals
- Foundation construction
- Foundations
- Geomechanics
- Geotechnical engineering
- Hydraulic engineering
- Hydraulic structures
- Hydraulics
- Materials characterization
- Materials engineering
- Mixtures
- Piers
- Ports and harbors
- Scour
- Soil mechanics
- Soil mixing
- Soils (by type)
- Water and water resources
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