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Effect of Cohesive and Seepage Force on A Bank Sediment Particle


Affiliations
1 Department of Mechanical Engineering, Kalyani Government Engineering College, Kalyani-741235, West Bengal, India
2 School of Water Resources Engineering, Jadavpur University, Kolkata, Pin-700032., West Bengal, India
     

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The phenomenon of erosion of a riverbank is extremely complicated and various forces act on bank sediments. Cohesive force between these grains and the force due to seepage of water play an important role among those forces. The present work uses the ‘‘Truncated Pyramid Model (TPM)’’ for the arrangement of grains and proposes generalized equations for calculating escape velocity under cohesion and seepage. The effect of seepage force along with the cohesive force has been studied for different degrees of exposure (fully exposed, half exposed and fully submerged) and compared with the previous study where only the force of cohesion was taken into account. The change in escape velocity due to seepage force for different degrees of exposure has been determined in this paper for three different grain sizes (300 µm, 400 µm and 500 µm of radius) along with different inter-particle distances.

Keywords

Sediments, Riverbank Erosion, Truncated Pyramid Model, Cohesive Force, Seepage Force, Escape Velocity.
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  • A.M. Osman, C.R.Throne, Riverbank stability analysis, Theory Journal of Hydraulic Engineering, Vol 114 (2), page 134-150, 1988

  • S.E. Darby, C.R.Throne, Stability analysis for steep, eroding, cohesive riverbanks, Journal of Hydraulic Engineering, Vol122, page 443-454, 1996

  • G. Duan, S.S.Y. Wang, Y. Jia, The applications of the enhanced CCHE2D model to study the alluvial channel migration process, Journal of Hydraulic Research, IAHR, Vol 39, page 469-480, 2001

  • J.G. Duan, Analytical approach to calculate rate of bank erosion, Journal of Hydraulic Engineering, Vol 131 (11), page 980-989, 2005

  • R. Zhang, J. Li, Simulation on mechanical behavior of cohesive soil by Distinct Element Method, Journal of Terramechanics, Vol 43, page 303-316, 2006

  • F. Soulie, M.S.E. Youssoufi, F. Cherblanc, C. Saix, Capillary Cohesion and Mechanical Strength of Polydisperse Granular Materials, The European Physics Journal, E Vol 21, page 349 -357, 2006

  • M. Achite, S. Ouillon, Suspended sediment transport in a semiarid watershed, Wadi Abd, Algeria (1973-1995), Journal of Hydrology, Vol 343(3-4), page 187-202, 2007

  • S. Mukherjee, A. Mazumdar, Study of effect of the variation of inter-particle distance on the erodibility of a riverbank under cohesion with a new model, Journal of Hydro-environment Research, Vol 4 (3), page 235-242, 2010

  • S. Mukherjee, Application of Truncated Pyramid Model in determination of escape velocity of particles of different diameters in varying conditions, International Journal of Soft Computing and Engineering (IJSCE), Vol 1(5), page 75-79, 2011

  • A. Armanini, C. Gregoretti, Incipient sediment motion at high slopes in uniform flow condition, Water Resources Research, Vol 41, page W12431-8, 2005


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  • Effect of Cohesive and Seepage Force on A Bank Sediment Particle

Abstract Views: 388  |  PDF Views: 0

Authors

Debasish Biswas
Department of Mechanical Engineering, Kalyani Government Engineering College, Kalyani-741235, West Bengal, India
Arijit Dutta
Department of Mechanical Engineering, Kalyani Government Engineering College, Kalyani-741235, West Bengal, India
Sanchayan Mukherjee
Department of Mechanical Engineering, Kalyani Government Engineering College, Kalyani-741235, West Bengal, India
Asis Mazumdar
School of Water Resources Engineering, Jadavpur University, Kolkata, Pin-700032., West Bengal, India

Abstract


The phenomenon of erosion of a riverbank is extremely complicated and various forces act on bank sediments. Cohesive force between these grains and the force due to seepage of water play an important role among those forces. The present work uses the ‘‘Truncated Pyramid Model (TPM)’’ for the arrangement of grains and proposes generalized equations for calculating escape velocity under cohesion and seepage. The effect of seepage force along with the cohesive force has been studied for different degrees of exposure (fully exposed, half exposed and fully submerged) and compared with the previous study where only the force of cohesion was taken into account. The change in escape velocity due to seepage force for different degrees of exposure has been determined in this paper for three different grain sizes (300 µm, 400 µm and 500 µm of radius) along with different inter-particle distances.

Keywords


Sediments, Riverbank Erosion, Truncated Pyramid Model, Cohesive Force, Seepage Force, Escape Velocity.

References





DOI: https://doi.org/10.24906/isc%2F2020%2Fv34%2Fi1%2F195949